AVAGO HSSR-7111 (5962-9314001)
- Single-channel hermetically sealed power MOSFET optocoupler — functions as a solid-state relay
- 90V output breakdown voltage, 1.0Ω max RON, 0.8A steady-state load current per channel
- 10mA LED input current, 1,500Vdc isolation withstand, no moving parts or contact wear
- MIL-PRF-38534 Class H, QML-38534 listed, DESC SMD 5962-9314001, −55°C to +125°C
- 8-pin hermetic ceramic DIP, gold-plated leads, 100% lot screening at three temperature points
Avago Technologies (now Broadcom) developed the HSSR-711x family as the hermetically sealed, military-qualified power MOSFET optocoupler series for defense and aerospace solid-state switching applications — devices that function as solid-state relays but are constructed to the material, process, and screening standards that mechanical relay substitutes in MIL-SPEC programs require. The HSSR-7111 is available from stock at Sparkle Electronics, a specialized hi-rel component distributor serving defense prime contractors, avionics OEMs, and government procurement offices requiring full lot documentation, conformance records, and DLA QML traceability. Manufactured and tested on a MIL-PRF-38534 certified line and dual-marked with both the Avago/Broadcom device designation and DESC SMD number 5962-9314001, the HSSR-7111 provides the procurement traceability required by defense contracts specifying QML-38534 sourcing for hybrid microcircuits. Every production lot receives 100% electrical screening at −55°C, +25°C, and +125°C across all Class H subgroups — the same temperature-complete lot qualification that applies to the HCPL-7851 and other Class H devices in this portfolio.
The HSSR-7111 operates as a single-channel solid-state relay: a photovoltaic-powered MOSFET output stage is optically driven by a GaAsP LED input, providing galvanic isolation between the control circuit and the switched load without mechanical contacts, contact bounce, arcing, or wear-out mechanisms. The 90V output breakdown voltage and 1.0Ω maximum on-resistance at 25°C suit it for low-voltage signal switching, instrumentation relay replacement, and isolated load control in avionics systems, radar and electronic warfare subsystems, and aerospace and defense ground support equipment where the mechanical relay failure modes — contact wear, bounce latency, and arc erosion — are not acceptable over the platform service life. Contact Sparkle Electronics to confirm stock, lot availability, and documentation requirements for your program.
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DESC SMD Number: 5962-9314001
The HSSR-7111 is procurable under DESC Standard Microcircuit Drawing number 5962-9314001, issued by the Defense Logistics Agency for the HSSR-7110/7111 hermetic power MOSFET optocoupler family. This SMD number places the device on the DLA Qualified Manufacturers List QML-38534 for hybrid microcircuits, providing the lot-controlled traceability chain required by defense contracts subject to MIL-SPEC component sourcing obligations.
The SMD number 5962-9314001 is shared across both the HSSR-7111 (Class H) and the Class E variant, with qualification class and lead configuration encoded in the full SMD extension: 5962-9314001HPC designates Class H, gold plate, standard through-hole; 5962-9314001HYA designates Class H, butt joint, solder dip; 5962-9314001HXA designates Class H, gull wing, solder dip. Procurement teams sourcing 5962-9314001 in stock, verifying Class H power MOSFET optocoupler QML availability, or requiring MIL-PRF-38534 lot screening documentation for solid-state relay procurement should confirm inventory and documentation scope with Sparkle Electronics before order placement. Certificate of conformance, Class H screening records, and country of origin documentation are available with each lot. Contact our team to confirm which lead configuration and SMD extension is required for your program.
Power MOSFET Optocoupler vs. Mechanical Relay: The Defense Switching Decision
In defense electronics, the selection between a mechanical relay and a solid-state relay equivalent is not a cost optimization decision — it is a reliability and qualification decision with direct consequences for platform service life, maintenance scheduling, and mission availability. The HSSR-7111 eliminates every failure mode intrinsic to electromechanical relay operation: contact wear from arcing and cycling, contact bounce introducing switching transients, coil inductance generating voltage spikes, and hermetic seal degradation from the mechanical actuation mechanism itself. For programs requiring HSSR-7111 in stock, Avago Class H solid-state relay hermetic distributor, or MIL-PRF-38534 power MOSFET optocoupler 5962-9314001, Sparkle Electronics maintains ready inventory with same-day response capability. Submit an inquiry for pricing, lot availability, and documentation confirmation within 24 hours.
How the Photovoltaic MOSFET Drive Architecture Works
The HSSR-7111’s output stage is not driven by a simple phototransistor CTR — it uses a photovoltaic diode stack that converts optical power from the LED into a gate drive voltage for the output power MOSFET. The twelve-diode stack produces approximately 6V at 20µA with 10mA LED input, providing sufficient gate-to-source voltage to fully enhance the output MOSFET and achieve the specified 1.0Ω maximum on-resistance. This architecture means the HSSR-7111 is a true voltage-controlled switch — the output MOSFET is either fully on (RON ≤ 1.0Ω) or fully off — not a linear amplifier or variable resistance element. The isolation between gate drive and output circuit is maintained by the optical coupling path, which sustains the 1,500Vdc isolation withstand between input LED and output MOSFET regardless of output switching state.
HSSR-7111 vs. HSSR-7110 vs. HSSR-7112: Selecting Within the Hermetic SSR Family
| Parameter | HSSR-7111 | HSSR-7110 | HSSR-7112 |
|---|---|---|---|
| Manufacturer | Avago / Broadcom | Avago / Broadcom | Avago / Broadcom |
| Availability | In Stock at Sparkle | Confirm with Sparkle | Confirm with Sparkle |
| Screening Class | MIL-PRF-38534 Class H | Commercial hermetic | MIL-PRF-38534 Class H |
| Temperature Screening | −55°C, +25°C, +125°C | +25°C only | −55°C, +25°C, +125°C |
| LED IF(ON) | 10mA min | 10mA min | 5mA min |
| Output Breakdown Voltage | 90V | 90V | 90V |
| RON (max, 25°C) | 1.0Ω | 1.0Ω | 1.0Ω |
| Load Current (Connection A) | 0.8A | 0.8A | 0.8A |
| Isolation Voltage | 1,500Vdc | 1,500Vdc | 1,500Vdc |
| QML-38534 | Yes | No | Yes |
| SMD Number | 5962-9314001 | None | 5962-9314002 |
| Package | 8-pin CDIP hermetic | 8-pin CDIP hermetic | 8-pin CDIP hermetic |
| Temperature Range | −55°C to +125°C | −55°C to +125°C | −55°C to +125°C |
The HSSR-7111 and HSSR-7112 are both Class H qualified — the electrical and qualification parameters are identical, with the single difference that the HSSR-7112 requires only 5mA minimum LED input current versus 10mA for the HSSR-7111, making the HSSR-7112 appropriate for low-drive-current applications where CMOS logic drives the LED directly without additional buffering. For programs where LED drive current is not a constraint, the HSSR-7111 under SMD 5962-9314001 is the standard procurement reference.
Within the Sparkle Electronics hermetic optocoupler portfolio, the HSSR-7111 occupies a unique functional position as the only power switching device — distinct from the logic gate optocouplers (AVAGO HCPL-5201 (5962-88768), AVAGO HCPL-5430, AVAGO HCPL-6631 (8102802)) and the analog isolation amplifier (AVAGO HCPL-7851 (5962-97557)). For broader analog and signal chain isolation requirements across defense programs, Sparkle Electronics maintains inventory of the full hermetic device range with complete Class H and QML documentation support.
Frequently Asked Questions
What does HSSR-7111 decode to?
HSSR = Hermetically Sealed Solid-State Relay (Avago/Broadcom power MOSFET optocoupler series); 71 = 90V/1.0Ω family; 11 = MIL-PRF-38534 Class H qualified, 10mA minimum LED input current variant. HSSR-7110 is the commercial hermetic equivalent; HSSR-7112 is the Class H variant with 5mA minimum LED input current.
Where can I buy HSSR-7111 in stock?
Sparkle Electronics maintains stock of the HSSR-7111 for defense and aerospace procurement. Contact our team for current pricing, lot availability, lead configuration options (standard through-hole, butt joint, gull wing), and confirmed lead time. Same-day response on qualified inquiries — documentation scope confirmed prior to order placement.
What is the DESC SMD number for HSSR-7111?
5962-9314001 is the base DESC SMD number for the HSSR-7111 Class H family. The full SMD designation includes lead configuration and finish: 5962-9314001HPC (standard through-hole, gold plate), 5962-9314001HYA (butt joint, solder dip), 5962-9314001HXA (gull wing, solder dip). Procurement documents must specify the full SMD extension to define the correct lead configuration and finish for lot acceptance.
What is the difference between Connection A and Connection B load current ratings?
Connection A — also referred to as AC connection — uses the two internal MOSFET dies in series back-to-back, enabling bidirectional AC switching at 0.8A maximum steady-state. Connection B — DC connection — shorts the two internal source terminals together, placing the MOSFETs in a configuration that handles unidirectional DC loads at 1.6A maximum steady-state. The wiring configuration is defined by how pins 1–4 and 5–8 are connected externally, with no change to the device itself required between configurations.
How does the HSSR-7111 compare to a mechanical relay for defense switching applications?
The HSSR-7111 offers unlimited contact life with no wear mechanism, zero contact bounce, deterministic switching times (1ms max turn-on, 1ms max turn-off), and no coil inductance spike on de-energization. These characteristics translate directly to longer maintenance intervals, more predictable system timing, and reduced EMI at the switching event. The trade-off relative to mechanical relays is a lower load current rating (0.8A vs. several amperes for typical defense relays) and a non-zero on-resistance (1.0Ω max). For low-current signal switching and instrumentation applications within the 90V/0.8A envelope, the HSSR-7111 is the correct solid-state replacement.
Is the HSSR-7111 suitable for AC load switching?
Yes, when wired in Connection A (AC connection). The internal back-to-back MOSFET configuration blocks voltage in both polarities when off and conducts in both directions when on, making it suitable for AC signal switching up to 90V breakdown voltage at 0.8A steady-state. For DC-only applications requiring higher current, Connection B provides 1.6A capacity in the unidirectional configuration. Contact Sparkle Electronics for application-specific switching configuration guidance.
Procuring HSSR-7111 for a defense or avionics solid-state relay application? Sparkle Electronics stocks Avago/Broadcom hermetic power MOSFET optocouplers — Class H, all lead configurations — with full MIL-PRF-38534 and QML-38534 documentation support for DLA procurement. Submit an inquiry — same-day response on pricing, lot availability, lead configuration, and documentation scope.
