Solid State Devices, Inc. (SSDI) — MIL-PRF-19500 JAN, JANTX, JANTXV & JANS hermetic rectifier, Schottky & TVS sourcing
Solid State Devices, Inc. — universally known in the defense semiconductor community as SSDI — is a privately held, founder-led U.S. manufacturer of hermetic high-power and high-voltage discrete semiconductors headquartered in La Mirada, California. Founded in April 1967 by Arnold N. Applebaum, SSDI is an active qualified source on the DLA Land and Maritime QML-19500 list under CAGE Code 30043, and has held JANS space-level certification on both its main manufacturing facility and its wafer fabrication facility since September 2011. SSDI is best known on QPL-19500 for its fast, ultrafast, and hyperfast silicon recovery rectifiers, its hermetic silicon Schottky rectifiers (including 300 V surface-mount variants that are among the industry's highest voltage hermetic Schottky devices), and its JANS-screened SiC power MOSFETs. (Note: SSDI here refers to Solid State Devices, Inc. — the semiconductor manufacturer — not to solid-state drives or storage.)
- 1967Founded
- La Mirada, CAHQ & Fab
- Privately heldOwnership
- 30043CAGE Code
- JAN → JANSQuality Levels
- JANS since 2011Space Cert.
About Solid State Devices, Inc.
Solid State Devices, Inc. (SSDI) was founded in April 1967 in La Mirada, California by Arnold N. Applebaum, who remains chairman, president, and CEO of the company nearly six decades later. From day one the company's mandate has been narrow and technical: design and build hermetic discrete semiconductors and electronic assemblies for critical aerospace, defense, and space applications. By the company's 25th anniversary in 1992, SSDI was already publicly described as one of the five largest U.S. manufacturers of power discrete semiconductors serving the military and space industries. Today, approximately 96% of SSDI's sales are to aerospace and defense customers.
SSDI operates three facilities inside a three-mile radius in La Mirada — a JANS-certified main manufacturing and test facility at 14701 Firestone Blvd., a JANS-certified wafer fabrication facility, and an administrative building. The company's internal design philosophy is summarized as its "3H" principle: High Density, High Performance, High Reliability. In practice, that translates into a deliberate focus on high-reliability (HiRel) hermetic parts that mainstream commercial semiconductor houses are unable or unwilling to supply — particularly at the intersection of high voltage, high power, and space-level qualification. Where large silicon suppliers have obsoleted MIL-PRF-19500 catalog parts, SSDI has historically stepped in with End-of-Life (EOL) and Diminishing Manufacturing Sources (DMS) solutions, redesigning and re-manufacturing hermetic replacements for legacy parts originally made by Motorola, Texas Instruments, Microsemi, International Rectifier, Semtech, Siliconix, and other predecessors.
SSDI achieved ISO 9001 and AS9100 registration in 2003. In September 2011, DLA Land and Maritime (the successor organization to DSCC) granted the company JANS certification for both its main manufacturing facility and its wafer fabrication facility — the highest product-assurance level defined by MIL-PRF-19500 and the gate through which parts qualify for space missions. On July 10, 2012, DLA formally approved SSDI's own MIL-PRF-19500 slash sheet, /768, covering the hyperfast rectifier series in JAN, JANTX, JANTXV, and JANS. More recently, SSDI has publicly cited flight heritage on the NASA Artemis II mission, with its hermetic rectifiers, Schottkys, SiC MOSFETs, zeners, TVS devices, and radiation-detector PIN diodes flying aboard both the Orion spacecraft and the SLS launch vehicle.
QPL / QML-19500 status
The Defense Logistics Agency (DLA) Land and Maritime real-time qualification listing for MIL-PRF-19500 shows Solid State Devices, Inc. as an active qualified source under:
- Solid State Devices, Inc. — La Mirada, California (14701 Firestone Blvd., La Mirada, CA 90638; CAGE Code 30043)
Both SSDI's main manufacturing / test facility and its wafer fabrication facility — a rare U.S. combination for a discrete-semiconductor house of this size — were granted JANS certification by DLA Land and Maritime in September 2011. That places SSDI in the small group of MIL-PRF-19500 manufacturers whose entire silicon flow, from wafer processing through final test, is qualified for space use inside a single U.S. footprint. In parallel, SSDI holds long-standing ISO 9001 and AS9100 registration (since 2003) and works to MIL-STD-883, MIL-STD-750, MIL-STD-202, MIL-M-38510, ESA/SCC-5000, and MIL-PRF-38534 (for hybrid microcircuits) in addition to MIL-PRF-19500 itself.
SSDI's most distinctive addition to the QPL-19500 catalog is a slash sheet it owns outright: MIL-PRF-19500/768. On July 10, 2012, DLA Land and Maritime approved the /768 performance specification sheet covering the the hyperfast rectifier family series of 10 A, 100–200 V hyperfast recovery silicon power rectifiers, with a 30 nanosecond maximum reverse recovery and 250 A surge rating. The specification provides four product-assurance levels — JAN, JANTX, JANTXV, and JANS — and DLA formally approved SSDI's qualification data on July 29, 2014. Related silicon ultrafast-recovery slash sheets in the /627 family also fall within SSDI's qualified scope, alongside its broader inventory of Schottky, zener, TVS, and rectifier device types on other MIL-PRF-19500 slash sheets.
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, and TVS devices — 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 |
| JANHC / JANKC | Chip / die-level | Unencapsulated die screening for downstream hybrid assembly | MIL-PRF-38534 hybrids, custom modules |
SSDI is qualified across all four hermetic encapsulated levels — JAN, JANTX, JANTXV, and JANS. For JANS parts, MIL-PRF-19500 further defines eight Radiation Hardness Assurance (RHA) levels, encoded as a single character (M, D, P, L, R, F, G, or H) inserted into the part number immediately after the JANS prefix. Those characters correspond to Total Ionizing Dose (TID) guarantees ranging from 3 krad(Si) at the "M" level up to 1 Mrad(Si) at "H". On top of the individual part-type qualification (the older Qualified Products List, QPL), the DoD now operates a line-level certification model called the Qualified Manufacturers List (QML), which is the framework SSDI's La Mirada operation is certified against — covering both silicon wafer processing and back-end assembly, screening, and test.
SSDI's MIL-PRF-19500 product portfolio
SSDI publicly documents sixteen product categories across its hermetic discrete and hybrid portfolio. The families below are all covered by SSDI's active MIL-PRF-19500 (and, where applicable, MIL-PRF-38534) qualifications and are the ones we most commonly source. In line with defense-buyer intent, this page lists part families and slash sheets rather than individual JAN part numbers — specific part-number availability is confirmed on quote.
Rectifier diodes — standard, fast, ultrafast, and hyperfast recovery
Silicon power rectifiers are SSDI's historical anchor product. The family runs from standard recovery through fast, ultrafast, and hyperfast recovery diodes, with SSDI holding the DLA-approved slash sheet MIL-PRF-19500/768 for its hyperfast rectifier series — 10 A silicon rectifiers at 100–200 V with a 30 nsec maximum reverse recovery, 0.95 V typical forward drop at 10 A, and a 250 A peak surge current, all available in JAN, JANTX, JANTXV, and JANS. Related ultrafast recovery families are qualified under the /627 and adjacent MIL-PRF-19500 slash sheets, and SSDI's hyper-ultra-fast catalog also includes lower-current hermetic axial rectifiers such as the 2 A / 100 V family. Packages span the standard hermetic axial-glass (DO-4, DO-5, DO-13, DO-41), metal-can, and hermetic surface-mount options.
Hermetic silicon Schottky rectifiers — including 300 V hermetic Schottky
SSDI's hermetic silicon Schottky line covers the standard low-voltage rectifier market (typically up to 100 V) and extends into what SSDI describes as the industry's highest-voltage hermetic silicon Schottky devices at 300 V. New hermetic Schottky products released in recent years are surface-mount in construction, targeting compact avionics and satellite power distribution designs that need Schottky-class forward-drop behavior in a JAN-level hermetic package. Screening levels are available up to JANS.
SiC Schottky diodes and SiC power MOSFETs for space
SSDI's space-focused wide-bandgap portfolio includes hermetic silicon-carbide Schottky rectifiers and SiC power MOSFETs. The company's SFC-series SiC MOSFETs are hermetically sealed in SSDI's SMD2 package and are screened per MIL-PRF-19500 / MIL-STD-750 / MIL-STD-883 at TX, TXV, and JANS (S-level), with representative devices offering hundreds of watts of dissipation, 900 V drain-source ratings, and total ionizing dose tolerance to 100 krad(Si). SiC devices provide drop-in replacements for silicon MOSFETs at 28 V bus voltages upward, with lower conduction loss, faster switching, easier paralleling, and inherent latch-up immunity.
Zener voltage regulators and precision reference diodes
SSDI qualifies hermetic zener voltage regulators and precision reference diodes under MIL-PRF-19500 across JAN, JANTX, JANTXV, and JANS levels. The family covers both power-regulation applications and temperature-compensated precision reference use. Axial-glass and surface-mount (MELF) packages are available; MELF variants typically carry the "US" suffix.
Transient Voltage Suppressors (TVS) and avalanche diodes
SSDI's hermetic avalanche transient-voltage-suppressor line covers both unidirectional and bidirectional configurations, aimed at military avionics, ground-vehicle power buses, and satellite power distribution where hermetic clamping devices are required. JANS-level screening is available. TVS is a natural adjacency to SSDI's avalanche-diode expertise on the rectifier side of the portfolio.
Bridge rectifiers and hermetic bridge modules
Single-phase and three-phase hermetic bridge rectifier assemblies round out SSDI's AC-to-DC conversion catalog. These are qualified against relevant MIL-PRF-19500 slash sheets where a bridge-rectifier device type is called out, and are complemented by SSDI's power-module and hybrid families for higher-current applications.
Bipolar transistors, thyristors, SCRs, JFETs, IGBTs, and GaN FETs
In addition to its diode and Schottky franchise, SSDI qualifies hermetic bipolar transistors, thyristors and silicon-controlled rectifiers (SCRs), JFETs, IGBTs, and Gallium Nitride (GaN) power FETs. SSDI bipolar-transistor JAN part numbers under CAGE Code 30043 have appeared in the U.S. National Stock Number database for decades, alongside the diode families that anchor the portfolio.
Power hybrids, power modules, and high-voltage assemblies
Alongside the MIL-PRF-19500 discrete flow, SSDI runs a parallel MIL-PRF-38534 hybrid microcircuit line. Representative products include radiation-tolerant high-side power switch hybrids in LCC20 hermetic ceramic packages that combine a zener-protected MOSFET with drive circuitry in a single package for satellite power distribution units. The SDAH-series high-voltage rectifier assemblies extend SSDI's fast-recovery rectifier technology into hermetic multi-stack assemblies rated up to 25 kV, useful for radar modulators, X-ray systems, and high-voltage aerospace power converters.
Specialty radiation-detector PIN diodes and IC voltage regulators
Rounding out the portfolio, SSDI supplies specialty hermetic PIN diodes for radiation detection and a small line of hermetic IC voltage regulators. These parts are typically used inside dosimetry payloads and mission-critical power conditioners on space platforms.
Packaging heritage
SSDI qualifies its device families across a broad hermetic-package inventory: axial-glass (DO-4, DO-5, DO-7, DO-13, DO-35, DO-41), metal-can through-hole (TO-18, TO-39/TO-5, TO-46, TO-78, TO-3, TO-254, TO-257), surface-mount MELF, and SSDI's own SMD2 hermetic surface-mount power package for wide-bandgap devices — together with hermetic ceramic LCC packages for the hybrid line.
Space-flight heritage — Artemis II and beyond
SSDI's hermetic discrete parts have flown on the most recent generation of U.S. human spaceflight hardware. On the NASA Artemis II mission, SSDI parts flew aboard both the Orion crew spacecraft and the Space Launch System (SLS) launch vehicle, traveling roughly 248,655 miles from Earth. Component types flown on that mission included SSDI hermetic rectifiers, silicon and SiC Schottky diodes, SiC power MOSFETs, zener diodes, TVS devices, and radiation-detector PIN diodes — effectively a cross-section of the JANS-level catalog described above. On the ground, SSDI's aerospace prime-customer relationships were recognized in 2026 with a BAE Systems Partner 2 Win Gold Tier Award.
Because rectifier and diode structures are naturally hard against Total Ionizing Dose effects up to roughly 106 – 107 rad(Si) and neutron fluences on the order of 1014 n/cm2, MIL-PRF-19500 does not always specify an explicit RHA level on the diode side of the JANS portfolio — the parts are inherently rad-hard by construction. For active devices such as SSDI's SiC MOSFETs, formal TID characterization is published at part level (representative parts are rated to 100 krad(Si) total dose), and SiC's higher voltage derating relative to silicon simplifies radiation-hardness assurance by pushing the operating point farther from device breakdown.
How Hybrid Electronics sources SSDI 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 Solid State Devices, Inc. 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 long-lead SSDI part they need.
Obsolete and legacy SSDI inventory
Discontinued SSDI part numbers, older date codes, and legacy slash-sheet revisions no longer in current SSDI production. We source excess inventory from OEMs, contract manufacturers, and long-term storage stocks and can typically provide date-coded traceability.
Allocated current-production SSDI JAN parts
JAN, JANTX, JANTXV, and JANS parts that are actively produced by SSDI in La Mirada 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. /768 hyperfast, /627 ultrafast) but not a settled manufacturer part number? We can quote SSDI options and, where useful, cross to equivalent QPL-19500 sources from other qualified manufacturers.
Frequently asked questions
Is Solid State Devices Inc (SSDI) on the MIL-PRF-19500 QPL?
Yes. SSDI is an active qualified source on the DLA Land and Maritime QML-19500 list, operating under CAGE Code 30043 out of La Mirada, California. Its main manufacturing facility and its wafer fabrication facility were both granted JANS certification by DLA Land and Maritime in September 2011.
Is SSDI the same thing as SSD (solid-state disk)?
No. On this page, SSDI refers to Solid State Devices, Inc., the semiconductor manufacturer founded in 1967 in La Mirada, California. It is unrelated to solid-state drive or storage products. SSDI's products are hermetic MIL-PRF-19500 diodes, rectifiers, Schottkys, zeners, TVS, and SiC MOSFETs for aerospace and defense.
What JAN quality levels does SSDI hold on MIL-PRF-19500?
SSDI is qualified to all four hermetic MIL-PRF-19500 product-assurance levels — JAN, JANTX, JANTXV, and JANS (space level). It offers TX, TXV, and S-level screening across its rectifier, Schottky, zener, TVS, and SiC MOSFET lines.
Which MIL-PRF-19500 slash sheets is SSDI qualified against?
SSDI is qualified against multiple MIL-PRF-19500 slash sheets, and owns MIL-PRF-19500/768 outright — the silicon hyperfast recovery power rectifier specification (10 A, 100–200 V, 30 nsec reverse recovery) that DLA Land and Maritime approved for SSDI's hyperfast rectifier series in July 2012, with JAN, JANTX, JANTXV, and JANS product-assurance levels. Additional silicon ultrafast-recovery slash sheets in the /627 family also fall within SSDI's qualified scope.
Who owns Solid State Devices Inc?
SSDI is privately held and founder-led. It was founded in April 1967 in La Mirada, California by Arnold N. Applebaum, who continues to serve as chairman, president, and CEO. The company operates three facilities within a three-mile area in La Mirada.
What SSDI part families does Hybrid Electronics source?
Hybrid Electronics sources SSDI JAN-level part families across all quality levels: hermetic rectifiers (standard, fast, ultrafast, hyperfast), silicon and SiC Schottky rectifiers, zener voltage regulators, TVS devices, bridge rectifiers, SiC power MOSFETs, thyristors and SCRs, bipolar transistors, and hermetic power hybrids and high-voltage rectifier assemblies. We work by exact part number and by MIL-PRF-19500 slash-sheet reference and support both current-production and obsolete legacy inventory.
Is Hybrid Electronics an authorized SSDI 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 Solid State Devices, Inc. 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 Solid State Devices, Inc. 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).