AVAGO HCPL-5201 (5962-88768)
- Single-channel hermetically sealed logic gate optocoupler, 8-pin ceramic DIP
- Wide VCC range 4.5V to 20V — compatible with LSTTL, TTL, and CMOS logic
- 350ns maximum propagation delay with >10,000 V/µs common mode transient immunity
- 1,500Vdc isolation withstand, three-state output option available
- MIL-PRF-38534 Class H and K certified, QML-38534 listed, DESC SMD 5962-88768
Avago Technologies (now Broadcom) has supplied hermetically sealed optocouplers to military and aerospace programs for decades — devices built to endure not just the electrical demands of isolated signal transmission, but the full environmental stress of airborne, shipboard, and ground-based defense systems. The HCPL-5201 is available from stock at Sparkle Electronics, a specialized distributor of high-reliability and military-grade electronic components serving defense contractors, avionics integrators, and government procurement programs worldwide. As a high-reliability Class H single-channel logic gate optocoupler manufactured and tested on a MIL-PRF-38534 certified line, the HCPL-5201 occupies a specific and non-substitutable position in defense electronics: it provides galvanic isolation between logic domains in an 8-pin ceramic DIP package that passes hermeticity requirements no plastic optocoupler can meet, across the full −55°C to +125°C military temperature range.
The HCPL-5201 is dual-marked with both the Avago/Broadcom device part number and the DESC Standard Military Drawing number 5962-88768, providing QPL traceability within the DLA qualified manufacturers list for hybrid microcircuits. Its AlGaAs LED input coupled to an integrated high-gain photon detector delivers low LED forward current requirements (1.6mA to 5mA), wide VCC supply range (4.5V to 20V), and a detector threshold with hysteresis that eliminates output signal chatter in noisy defense environments — exactly the characteristics required for isolated logic interfaces in avionics systems, radar and electronic warfare platforms, and aerospace and defense embedded controllers. Contact Sparkle Electronics to confirm stock and request a same-day quote.
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DESC SMD Number: 5962-88768
The HCPL-5201 carries DESC Standard Military Drawing number 5962-88768, issued by the Defense Logistics Agency (DLA) Defense Supply Center. This SMD number places the device within the DLA Qualified Manufacturers List (QML-38534) for hybrid microcircuits — a distinct and more rigorous qualification pathway than the MIL-STD-883 QPL system applied to standard microcircuits.
The dual marking of the HCPL-5201 with both its commercial part number and the DESC SMD number enables procurement under the DLA QML system for defense contracts requiring traceable, lot-controlled optocoupler isolation. The HCPL-5201 can be procured at two screening levels: Class H (standard high-reliability military screening) and Class K (the most stringent DLA screening level, appropriate for space and highest-reliability programs). For procurement teams searching 5962-88768 in stock or verifying QML-38534 optocoupler availability, Sparkle Electronics supplies the HCPL-5201 with certificate of conformance, lot traceability, and DLA documentation as required by program procurement specifications. Contact our team to confirm which class level is required and available.
What Makes the HCPL-5201 Irreplaceable in Defense Optocoupler Selection
The HCPL-5201’s position in the defense supply chain is straightforward: it is the hermetically sealed, military-temperature, DLA-qualified version of a logic gate optocoupler that plastic-packaged alternatives cannot substitute on MIL-SPEC programs. Every design parameter — the AlGaAs LED, the hysteresis-threshold detector, the wide VCC range, the hermetic ceramic package — was specified to address failure modes that disqualify plastic optocouplers in sustained defense deployment. For procurement engineers sourcing HCPL-5201 in stock, Avago hermetic optocoupler 5962-88768, or MIL-PRF-38534 logic gate optocoupler distributor, Sparkle Electronics maintains ready inventory. Submit an inquiry for pricing and confirmed stock within 24 hours.
Why AlGaAs LED and Hysteresis Detector Matter for Military Applications
Commercial optocouplers commonly use GaAsP LEDs. The AlGaAs LED in the HCPL-5201 offers superior reliability at high operating temperatures and under extended electrical stress — directly relevant for defense platforms cycling through extreme thermal environments over multi-decade service life. The integrated photon detector’s threshold hysteresis is an equally important reliability feature: in high-noise military environments where ground loops, switching transients, and common mode interference are routine, a detector without hysteresis can produce spurious output chatter on the logic signal. The HCPL-5201’s hysteresis threshold eliminates this failure mode by design, not by external circuit complexity.
HCPL-5201 vs. Commercial and Non-Hermetic Alternatives
| Parameter | HCPL-5201 | HCPL-2201 (commercial) |
|---|---|---|
| Manufacturer | Avago / Broadcom | Avago / Broadcom |
| Availability | In Stock at Sparkle | — |
| Package | 8-pin Ceramic DIP (hermetic) | 8-pin Plastic DIP |
| LED | AlGaAs | GaAsP |
| Temperature Range | −55°C to +125°C | −40°C to +85°C |
| Reliability Screening | MIL-PRF-38534 Class H/K | Commercial |
| SMD Number | 5962-88768 | N/A |
| QML Status | QML-38534 Listed | N/A |
| VCC Range | 4.5V to 20V | 4.5V to 20V |
| IF(ON) | 1.6mA to 5mA | 1.6mA to 5mA |
| Propagation Delay | 350ns max | 350ns max |
| CMR | >10,000 V/µs | >10,000 V/µs |
| Isolation Voltage | 1,500Vdc | 1,500Vdc |
The electrical performance is matched — the HCPL-5201 and HCPL-2201 share the same core circuit architecture. What the ceramic hermetic package, AlGaAs LED, and MIL-PRF-38534 screening provide is not better nominal performance at room temperature, but validated, documented performance across the full military environment over a service life that plastic packages and commercial screening cannot guarantee.
Class H vs. Class K: Choosing the Right Screening Level
The HCPL-5201 is available under both MIL-PRF-38534 Class H and Class K. Class H is the standard military high-reliability grade covering the full −55°C to +125°C operational range with lot-controlled screening — suitable for the large majority of aerospace and defense programs. Class K is the most rigorous DLA screening level, applying additional qualification tests appropriate for space, strategic missile, and highest-consequence defense electronics. Program procurement specifications will define which class is required; both are procurable from Sparkle Electronics. Defense programs managing isolation components as part of a QML-38534 qualified parts list can source the HCPL-5201 with full lot documentation from Sparkle Electronics. For broader analog and signal chain components required alongside optocoupler isolation in defense systems, Sparkle Electronics maintains inventory across the full high-reliability component range.
Frequently Asked Questions
What does HCPL-5201 decode to?
HCPL = Hewlett-Packard Coupled Product Line (original HP optocoupler series, later Agilent, then Avago, now Broadcom); 52 = hermetically sealed logic gate optocoupler family; 01 = single-channel, standard propagation delay variant. The HCPL-5231 is the dual-channel counterpart in the same hermetic family.
Where can I buy HCPL-5201 in stock?
Sparkle Electronics stocks the HCPL-5201 for defense and aerospace procurement. Contact our team for current pricing, class level (H or K), available quantity, and confirmed lead time. Same-day response on qualified inquiries — we serve defense contractors, government procurement offices, and avionics integrators globally.
What is the DESC SMD number for HCPL-5201?
5962-88768 — the DESC Standard Military Drawing number for the HCPL-5201 family, placing it on the DLA Qualified Manufacturers List QML-38534 for hybrid microcircuits. Procurement teams can reference this SMD number for DLA contract sourcing and lot traceability.
What is the difference between MIL-PRF-38534 and MIL-STD-883 qualification?
MIL-PRF-38534 is the performance specification for hybrid microcircuits — it covers the manufacturing facility qualification (certified line), lot screening, and QML listing for complex multi-die or hybrid devices. MIL-STD-883 applies to standard microcircuits (ICs, discretes) and defines individual device screening tests. The HCPL-5201, as a hybrid optoelectronic device combining an LED die and a detector IC in a hermetic package, falls under MIL-PRF-38534 rather than MIL-STD-883. Both result in DLA QPL/QML traceability, but through different qualification frameworks.
What does the three-state output option provide?
The optional three-state output allows the HCPL-5201’s output to be placed in a high-impedance state, enabling bus-sharing configurations where multiple optocouplers drive a common logic bus without signal contention. This is useful in isolated data bus architectures common in avionics and shipboard electronics where multiple isolated nodes share a logic interface.
Is the HCPL-5201 compatible with CMOS supply voltages?
Yes. The wide VCC range of 4.5V to 20V makes the HCPL-5201 compatible with 5V TTL/LSTTL and CMOS supplies, as well as higher-voltage supply rails used in some defense subsystems. The low input current requirement (1.6mA to 5mA IF(ON)) also makes the device compatible with CMOS-output logic drivers without additional buffering in most applications. Contact us for application-specific interface design support.
Sourcing HCPL-5201 for a defense or avionics program? Sparkle Electronics stocks Avago/Broadcom hermetic optocouplers — Class H and Class K — with full MIL-PRF-38534 and QML-38534 documentation support for DLA procurement. Submit an inquiry — same-day response on pricing, class availability, and lead time.
