Teledyne Micropac Industries — MIL-PRF-19500 JAN, JANTX, JANTXV & JANSR hermetic optocoupler and LED sourcing
Teledyne Micropac Industries — founded in April 1963 in Garland, Texas and acquired by Teledyne Technologies on December 30, 2024 in a take-private transaction valued at approximately $57.3 million — is one of the few U.S. certified manufacturers of JAN, JANTX, and JANTXV hermetic optocouplers and LEDs on MIL-PRF-19500. The company operates under CAGE Code 31757 and holds MIL-PRF-19500R Manufacturer Certification for optically coupled isolators and LEDs across surface-mount, TO-can, ceramic, and panel-mount configurations, plus a JANSR / JANTXVR radiation-assured optocoupler line qualified for space use.
- April 1963Founded
- Garland, TXHeadquarters
- Teledyne TechOwnership
- 31757CAGE Code
- JAN → JANSRQuality Levels
- Opto + HybridMIL Scope
About Teledyne Micropac Industries
Micropac Industries, Inc. was founded in April 1963 in Garland, Texas and spent the next six decades building one of the deepest U.S. portfolios in hermetic optoelectronics, hybrid microcircuits, and small-signal high-reliability microelectronic assemblies. Micropac traded publicly on the OTC market under the symbol MPAD until it was taken private in the fourth quarter of 2024. On October 24, 2024, Teledyne Technologies announced a definitive merger agreement to acquire Micropac at $20.00 per share cash, an approximately $57.3 million transaction after accounting for net debt as of August 24, 2024. The deal closed on December 30, 2024, and Micropac now operates as Teledyne Micropac Industries, Inc., keeping the Micropac name and continuing production from its new state-of-the-art facility at 1655 State Highway 66, Garland, Texas 75046.
Micropac is a diversified high-reliability microelectronics company. Its historic product base spans microelectronic circuits, optoelectronic components, sensor and display assemblies, high-reliability microcircuit products, electronic assemblies, power products, sensors, displays, optical data transport products, and complete custom designs for military, aerospace, space, medical, and industrial applications. On the MIL-Spec side, Micropac is best known for two qualifications: MIL-PRF-19500 Manufacturer Certification as a source of hermetic optically coupled isolators and LEDs, and MIL-PRF-38534 Laboratory Suitability for hybrid microcircuits. It is also a historic MIL-STD-1772-qualified hybrid manufacturer, one of the small set of U.S. houses that NASA NEPP has cited in its space-parts guidance for meeting the underlying certification and qualification framework.
The company's manufacturing footprint reflects that scope. Wafer fabrication is performed at 905 E. Walnut Street, Garland, Texas, alongside a historic assembly line at 725 E. Walnut Street; final assembly and screening for the current MIL-Spec optocoupler and LED lines is at the 1655 State Highway 66 plant, with additional assembly of JAN and JANTX opto product performed at a contracted facility in Ciudad Juárez, Chihuahua, Mexico. Certain wafer processing for the optocoupler line is performed under contract at Opto Tech Corporation in the Hsinchu Science Park, Taiwan. All of these plants are captured in the DLA Land and Maritime QML-19500 supplier record under CAGE 31757.
Not to be confused with Teledyne Cougar
Because Teledyne Technologies owns several distinct high-reliability semiconductor and RF businesses, buyers occasionally conflate two very different Teledyne units. To be unambiguous:
- Teledyne Micropac Industries, Inc. — the subject of this page — is the Garland, Texas optoelectronics, hybrid microcircuit, and solid-state relay supplier. CAGE Code 31757. Holds MIL-PRF-19500 and MIL-PRF-38534 qualifications. Formerly public as OTC: MPAD; taken private by Teledyne on December 30, 2024.
- Teledyne Cougar is a separate Teledyne business unit that designs and builds RF and microwave amplifiers — a completely different product line at a different site, with a different CAGE Code and different DLA qualification history. It is not the same company as Teledyne Micropac and does not appear on MIL-PRF-19500.
If a buyer sends us an RFQ for a Teledyne JAN-level part, we confirm whether the drop-target is Micropac (optocoupler / LED / hybrid) or a different Teledyne HiRel unit before quoting.
QPL / QML-19500 status
The Defense Logistics Agency (DLA) Land and Maritime real-time list of qualified sources for MIL-PRF-19500 currently shows Micropac as Teledyne Micropac Industries, Inc. at 1655 State Highway 66, Garland, TX 75046-9017, under CAGE Code 31757. The DLA supplier record enumerates the following certified plant locations tied to this qualification:
- Micropac Industries, Inc. — Garland (Assembly & Wafer Fab) — 725 E. Walnut St. (assembly) and 903 / 905 E. Walnut St. (wafer fab), Garland, TX 75040
- Micropac Industries, Inc. — Ciudad Juárez (contracted assembly) — Inmobiliaria San José de Cd Juárez SA de CV, Calle Honduras 480 Sur, Colonia El Barreal, Cd Juárez Chihuahua, CP 32040, Mexico (for JAN and JANTX opto product)
- Opto Tech Corp — Hsinchu Science Park (contracted wafer) — No.1 Li-hsin Rd., Hsinchu Science Park, Hsinchu 30078, Taiwan
Micropac's DLA VQ certification for MIL-PRF-19500 was renewed following a March 20–23, 2023 audit of the Garland facilities. The most recent Manufacturer's Certification, filed under MIL-PRF-19500R (FSC 5961, VQE-23-037904, Control Number 084584), confirms Micropac as eligible to qualify and supply JAN, JANTX, and JANTXV optically coupled isolators and LEDs in surface-mount, TO-can, ceramic, and panel-mount configurations. The rad-assured 4N-series optocouplers extend that scope to the JANTXVR and JANSR radiation-hardness classifications.
In parallel, Micropac holds MIL-PRF-38534 Laboratory Suitability certification (VQH-23-037980, Control Number 084925, December 2023 audit) covering its hybrid microcircuit business — the DC/DC converters, motor controllers, voltage-controlled oscillators, power op-amps, solid-state relays, and custom hybrid modules that ship out of Garland alongside the -19500 opto product.
MIL-PRF-19500 quality levels — what JAN, JANTX, JANTXV, and JANS actually mean
MIL-PRF-19500 is the U.S. Department of Defense performance specification for hermetically-sealed discrete semiconductor devices — diodes, rectifiers, transistors, thyristors, SCRs, TVS devices, LEDs, and optically coupled isolators — administered by the DLA Land and Maritime office in Columbus, Ohio (the successor organization to DSCC-VQ). The specification defines a stack of ascending product-assurance levels indicated by the prefix on a part number:
| Prefix | Level name | What it adds | Typical use case |
|---|---|---|---|
| JAN | Joint Army-Navy | Baseline qualification against slash sheet, Group A/B/C conformance | Ground defense, ruggedized industrial |
| JANTX | JAN with eXtra Testing | Adds 168-hour burn-in and additional 100% electrical screening | Airborne, avionics, missile |
| JANTXV | JANTX with Visual inspection | Adds 100% pre-cap internal visual inspection | Higher-reliability avionics, tactical space |
| JANS | Joint Army-Navy-Space | Adds wafer lot acceptance, Group E conformance and full space screening | Launch vehicles, satellites, deep space |
| JANSR / JANTXVR | Space / TXV with Radiation lot acceptance | Adds RLAT (radiation lot acceptance testing) at defined TID levels | Radiation-hardened satellite and launch electronics |
| JANHC / JANKC | Chip / die-level | Unencapsulated die screening for downstream hybrid assembly | MIL-PRF-38534 hybrids, custom modules |
Certification under MIL-PRF-19500 today runs through two frameworks. The older Qualified Products List (QPL) qualifies each part-type individually against its slash sheet; the current Qualified Manufacturers List (QML) qualifies the manufacturing line as a whole, which is the framework the certified Micropac line in Garland operates under. The MIL-PRF-19500 slash sheets (e.g. /519, /520, /521, /548) define the electrical, environmental, and reliability requirements for a specific device family, and each qualified part number is assigned a JANM19500/ traceability designator that links the part back to its slash sheet and manufacturer.
Teledyne Micropac's MIL-PRF-19500 product portfolio
Micropac's MIL-PRF-19500 scope is optoelectronic — hermetic optically coupled isolators and hermetic LEDs — and is complemented by an adjacent MIL-PRF-38534 hybrid microcircuit portfolio built in the same Garland facility. In line with buyer intent, this page lists part families and slash sheets rather than individual JAN part numbers — specific part-number availability is confirmed on quote.
Hermetic optically coupled isolators (optocouplers)
The Micropac optocoupler line is the deepest single-vendor JAN-level opto catalog on MIL-PRF-19500 today. Micropac is certified to supply JAN, JANTX, and JANTXV optocouplers under MIL-PRF-19500/548, the DoD slash sheet covering solid-state optoelectronic couplers in both through-hole and surface-mount packages. Catalog device configurations span single-channel, dual-channel, and quad-channel outputs with NPN phototransistor stages, package families including TO-18, TO-5, 4-pin LCC and 6-pin LCC, and isolation-voltage ratings from 500 V up to 12 kV. Standard operating temperature is −55 °C to +125 °C.
Radiation-assured (JANSR / JANTXVR) optocouplers
Micropac's rad-assured 4N-series — the 4N47U/BU, 4N48U/BU, and 4N49U/BU device types in hermetically sealed 6-pin LCC packages — is qualified against MIL-PRF-19500/548 at the JANTXVR and JANSR radiation-assurance levels. The rad-assured line uses a GaAlAs infrared LED coupled to an NPN silicon phototransistor with a base lead available for photodiode operation, and the devices are specified to meet datasheet performance after Total Ionizing Dose (TID) of 100 krad(Si), ELDRS (Enhanced Low Dose Rate Sensitivity) at 100 krad(Si), and a 1-MeV neutron fluence of 1 × 1012 n/cm2. Product flow includes Group A, Group B, periodic Group C, Group D, PIND, and X-ray inspection, with serialized traceability on every unit.
Hermetic LEDs (visible discrete and panel mount)
Micropac is a long-standing supplier of hermetic visible LEDs on MIL-PRF-19500. Widely cited slash sheets include /519 (red LED, through-hole mount, JAN and JANTX levels — supporting the JANM19500/519 series hermetic red LED family), /520 (yellow LED, hermetic yellow LED family), /521 (green/other visible LED, green/other visible LED family), and /467 (red LED, through-hole red LED). Configurations include discrete through-hole devices and full panel-mount hermetic LED assemblies for cockpit and instrument use.
High-voltage optically coupled isolators
For power-electronics designs requiring greater than 1 kV isolation, Micropac supplies high-voltage optocouplers with isolation-voltage ratings up to 12 kV. Applications include ground-loop elimination and signal-ground isolation on high-side gate drivers, switchmode power supply feedback, motor-control drive electronics, and process-control I/O isolation in ruggedized industrial and aerospace platforms.
MIL-PRF-38534 hybrid microcircuits, power hybrids and SSRs
Adjacent to the MIL-PRF-19500 opto and LED business, Micropac supplies a wide MIL-PRF-38534 hybrid microcircuit portfolio out of the same Garland, Texas facility. Families include DC/DC converters, power hybrids, power op-amps, voltage-controlled oscillators, and solid-state relays (SSRs) for high-reliability military and aerospace power switching. These parts qualify under MIL-PRF-38534 classes rather than MIL-PRF-19500 — a hybrid rather than discrete framework — but frequently appear on the same BOMs alongside JAN-level opto and LED devices, and we source them from the same channel.
Packaging heritage
Across the hermetic optoelectronic line, Micropac ships in a broad set of JAN-qualified packages: metal-can TO-5 and TO-18 for classic single-channel couplers, 4-pin and 6-pin LCC surface-mount ceramic carriers for the modern rad-assured and JANTXV lines, multi-channel ceramic and hermetic surface-mount packages for dual and quad-channel devices, and panel-mount hermetic assemblies for the LED display families under /519 / /520 / /521.
Space and defense heritage
For six decades, Micropac's hermetic optoelectronic and hybrid parts have shown up across U.S. military and space programs. On the space side, the rad-assured 4N47/4N48/4N49 optocoupler families are marketed explicitly for space-environment electronic systems, and the underlying MIL-PRF-19500/548 qualification is a common building block in satellite bus electronics — telemetry and telecommand interfaces, on-board power distribution, motor control for reaction wheels and antenna gimbals, payload signal isolation, and switchmode power-supply feedback loops. The broader Micropac product base — MIL-PRF-38534 hybrid microcircuits, DC/DC converters, solid-state relays, motor-controller hybrids, and precision voltage references — has flown on U.S. defense airframes, missile seekers, and satellite platforms across generations of programs.
Because optocouplers are one of the classic weak-link parts under heavy ionizing dose, the difference between commercial-grade optos and Micropac JANSR-level product is significant for space designers: rad-assured Micropac parts are qualified against TID, ELDRS, and neutron displacement damage on a per-wafer basis, with serialized traceability into the flight-hardware traveler. This is a natural fit with Micropac's parallel MIL-PRF-38534 hybrid line, which lets integrators specify complete rad-assured signal-isolation subassemblies rather than individual devices.
How Hybrid Electronics sources Teledyne Micropac JAN parts
Hybrid Electronics Corporation is a Sanford, Florida-based independent stocking distributor and sourcing agent, founded in 1981 as Knight Electronics. We are not an authorized distributor, agent, licensee, or franchised partner of Micropac Industries, Inc., Teledyne Micropac Industries, or Teledyne Technologies Incorporated. What we do is help defense, aerospace, and industrial buyers close JAN-level BOMs when the mainstream authorized channel cannot support the exact date code, package variant, or obsolete lot they need. All sourcing is quotation-based; we do not offer repair services and do not sell counterfeit parts.
Obsolete and legacy JAN opto inventory
Discontinued Micropac opto and LED part numbers, older date codes, and slash-sheet revisions no longer in current Teledyne Micropac production. We source excess inventory from OEMs, CMs, and long-term storage stocks and can typically provide date-coded traceability.
Allocated current-production JAN parts
JAN, JANTX, JANTXV, JANTXVR and JANSR optocouplers and LEDs that are actively produced but on long lead time or allocation. Send us a shortage list or a full BOM — we will confirm what we can source, in which package, and at what lead time.
Slash-sheet and cross-reference sourcing
Have a MIL-PRF-19500 slash-sheet reference (e.g. /519, /520, /548) but not a settled manufacturer part number? We can quote Micropac options and, where useful, cross to equivalent QPL-19500 sources from other qualified optocoupler manufacturers.
Frequently asked questions
Is Teledyne Micropac still on the MIL-PRF-19500 QPL?
Yes. The DLA Land and Maritime real-time qualified-source list for MIL-PRF-19500 shows Teledyne Micropac Industries, Inc. under CAGE Code 31757, at 1655 State Highway 66, Garland, TX 75046, with certified plant locations for wafer fabrication (Garland, TX) and assembly (Garland, TX and contracted Juárez, MX). Micropac is certified under MIL-PRF-19500R for JAN, JANTX, and JANTXV optically coupled isolators and LEDs, plus JANTXVR and JANSR radiation-assured optocouplers.
Who owns Micropac Industries today?
Teledyne Technologies Incorporated (NYSE: TDY). Teledyne completed its take-private acquisition of Micropac Industries, Inc. (formerly OTC: MPAD) on December 30, 2024, at $20.00 per share cash, in a transaction valued at approximately $57.3 million including net debt. The company now operates as Teledyne Micropac Industries, Inc. and continues to manufacture from its facility in Garland, Texas.
Is Teledyne Micropac the same as Teledyne Cougar?
No. Teledyne Micropac Industries (Garland, TX; CAGE 31757) makes hermetic optocouplers, LEDs, hybrid microcircuits, solid-state relays, and power hybrids, and holds MIL-PRF-19500 and MIL-PRF-38534 qualifications. Teledyne Cougar is a separate Teledyne business unit that makes RF and microwave amplifiers — a different product line, different site, and different DLA qualification history. They are not the same company.
Which MIL-PRF-19500 slash sheets is Micropac qualified against?
Micropac's MIL-PRF-19500 scope is optoelectronic. Widely cited slash sheets include /548 (solid-state optoelectronic couplers, through-hole and surface mount, covering the 4N-series and the JANTXVR / JANSR rad-assured 4N47 / 4N48 / 4N49 families), /519 and /520 (red and yellow hermetic LED families), /521, and /467 (red LED family). Slash-sheet qualifications are administered by DLA Land and Maritime under MIL-PRF-19500R.
Does Micropac hold MIL-PRF-38534 hybrid qualification?
Yes. Micropac holds MIL-PRF-38534 Laboratory Suitability certification for hybrid microcircuits at its Garland, Texas facility (VQH-23-037980, Control Number 084925, following a December 2023 DLA audit), and was historically one of the U.S. manufacturers cited by NASA NEPP in its hybrid-microcircuit guidance as meeting the MIL-STD-1772 / MIL-H-38534 certification and qualification requirements. The MIL-PRF-38534 qualification supports Micropac's DC/DC converter, power op-amp, motor-controller, voltage-controlled-oscillator, solid-state relay, and custom hybrid product lines.
What Teledyne Micropac part families does Hybrid Electronics source?
Hybrid Electronics sources Teledyne Micropac optocoupler, LED, hybrid microcircuit, solid-state relay, and power hybrid part families across all JAN quality levels held by the manufacturer: JAN, JANTX, JANTXV, and the JANTXVR and JANSR radiation-assured levels on the rad-hard opto families. We work by exact JAN part number and by MIL-PRF-19500 slash-sheet reference, and support both current-production and obsolete legacy inventory. All sourcing is quotation-based.
Is Hybrid Electronics an authorized Teledyne or Micropac distributor?
No. Hybrid Electronics is an independent stocking distributor and sourcing agent. We are not a distributor, reseller, agent, licensee, partner, or authorized service provider of Micropac Industries, Inc., Teledyne Micropac Industries, Inc., or Teledyne Technologies Incorporated. All trademarks are property of their respective owners.
Trademark and affiliation notice. All company names, product names, and trademarks referenced on this page are the property of their respective owners. Hybrid Electronics Corporation is an independent stocking distributor and sourcing agent; we are not a distributor, reseller, agent, licensee, partner, or authorized service provider of Teledyne Micropac Industries, Inc. or Teledyne Technologies Incorporated unless expressly stated. Component sourcing is subject to availability and inspection. Hybrid Electronics does not sell counterfeit parts and does not offer repair services. MIL-PRF-19500 and JAN quality-level designations are administered by the U.S. Defense Logistics Agency (DLA).