AVAGO HCPL-6631 (8102802)
- Dual-channel hermetically sealed high-speed, high CMR logic gate optocoupler — 10 MBd
- 10,000 V/µs typical common mode rejection — internal shield guaranteed at 1,000 V/µs min
- GaAsP LED, open collector Schottky-clamped output, TTL compatible
- 1,500Vdc isolation withstand, full military temperature range −55°C to +125°C
- MIL-PRF-38534 Class H, QML-38534 listed, dual-marked with DLA SMD 8102802
Avago Technologies (now Broadcom) developed the HCPL-6631 as the MIL-PRF-38534 Class H, 8-pin DIP hermetic version of the 10 MBd high-CMR logic gate optocoupler family — bringing together the speed and common mode rejection performance required by defense signal isolation applications into a compact dual-channel ceramic package. The HCPL-6631 is available from stock at Sparkle Electronics, a specialized distributor of high-reliability and military-grade electronic components serving defense prime contractors, avionics OEMs, and government procurement programs worldwide. Manufactured and tested on a MIL-PRF-38534 certified line and dual-marked with both the Avago/Broadcom device designation and DLA SMD number 8102802, the HCPL-6631 carries full QML-38534 traceability for hermetic microcircuit procurement under DLA sourcing requirements.
The defining characteristic of the HCPL-6631 within the hermetic optocoupler portfolio is its combination of 10 MBd data rate and >10,000 V/µs typical common mode rejection — the highest CMR in the HCPL-66xx hermetic family. An internal shield structure within each channel provides a guaranteed 1,000 V/µs minimum CMR, making the device suitable for radar and electronic warfare front-end interfaces, isolated line receivers in high-noise military environments, logic ground isolation across power domains with significant switching transients, and digital isolation for A/D and D/A conversion interfaces in avionics systems where both isolation integrity and signal fidelity must be guaranteed across the full −55°C to +125°C military temperature range. Contact Sparkle Electronics to confirm stock and request a same-day quote.
Related Products For Your Business
DLA SMD Number: 8102802
The HCPL-6631 is dual-marked with DLA Standard Microcircuit Drawing number 8102802, issued without the standard 5962- prefix — placing it within the DLA Qualified Manufacturers List QML-38534 for hybrid microcircuits under the Avago/Broadcom CAGE code. The SMD number 8102802 specifically identifies the 8-pin DIP through-hole dual-channel Class H variant. The full Class H gold-plate part number is 8102802PC; the solder-dipped version is 8102802PA.
For programs requiring Class K — the most stringent DLA screening level — the corresponding SMD numbers are 5962-9800102KPC (gold plate) and 5962-9800102KPA (solder dipped). Procurement teams sourcing 8102802 in stock, HCPL-6631 Class H hermetic optocoupler, or MIL-PRF-38534 high-CMR dual-channel optocoupler can confirm inventory and documentation requirements directly with Sparkle Electronics. Contact our team before placing your order.
HCPL-6631: High CMR as the Primary Isolation Specification
In the hermetic optocoupler portfolio, CMR is not universally the primary selection criterion — but for applications where isolation barriers cross high dV/dt switching environments, it becomes the deciding parameter. The HCPL-6631’s >10,000 V/µs typical CMR and internal shield structure put it in a distinct position within the AVAGO HCPL-5731 (5962-89785), AVAGO HCPL-5430, and AVAGO HCPL-5201 (5962-88768) hermetic family: it is the correct specification when both 10 MBd data rate and maximum CMR must be achieved simultaneously in a dual-channel hermetic package. For procurement engineers sourcing HCPL-6631 in stock, Avago 8102802 hermetic optocoupler distributor, or MIL-PRF-38534 Class H high CMR dual-channel optocoupler, Sparkle Electronics maintains ready inventory. Submit an inquiry for pricing and stock confirmation within 24 hours.
HCPL-6631 vs. the Full Hermetic Optocoupler Family from Sparkle Electronics
| Parameter | HCPL-6631 | HCPL-5430 | HCPL-5201 (5962-88768) | HCPL-5731 (5962-89785) |
|---|---|---|---|---|
| Channels | 2 | 2 | 1 | 2 |
| Data Rate | 10 MBd | 40 Mbps | 5 MBd | 100 KBd |
| CMR (typical) | >10,000 V/µs | 500 V/µs | >10,000 V/µs | — |
| CMR (min) | 1,000 V/µs | 500 V/µs | 1 kV/µs | — |
| Output Type | Open collector Schottky | Push-pull totem pole | Totem pole | Darlington |
| Isolation | 1,500Vdc | 1,500VDC | 1,500VDC | 1,500Vdc |
| Package | 8-pin CDIP hermetic | 8-pin CDIP hermetic | 8-pin CDIP hermetic | 8-pin CDIP hermetic |
| Temperature | −55°C to +125°C | −55°C to +125°C | −55°C to +125°C | −55°C to +125°C |
| Qualification | MIL-PRF-38534 H/K | MIL-PRF-38534 H/K | MIL-PRF-38534 H/K | MIL-PRF-38534 H/K |
| SMD | 8102802 | DESC Drawing | 5962-88768 | 5962-89785 |
The HCPL-6631 fills the intersection of 10 MBd speed and maximum CMR — specifications that the HCPL-5430 trades away for higher data rate, and that the HCPL-5201 achieves at lower data rate in a single channel. For applications where two channels at 10 MBd with >10 kV/µs typical CMR are required in one hermetic package, the HCPL-6631 is the only device in the family that satisfies all three constraints simultaneously.
Understanding the Internal Shield and CMR Performance
Each channel of the HCPL-6631 contains a GaAsP LED optically coupled to an integrated high-speed photon detector whose output is an open collector Schottky-clamped transistor. The internal shield structure between input and output is the key architectural feature that enables the guaranteed 1,000 V/µs minimum CMR — it intercepts capacitively coupled common mode currents that would otherwise flow through the optical coupling path and disturb the output logic state. Without this shield, common mode transients in switching power supplies, motor drives, or bus fault events would produce spurious output transitions. For defense applications crossing power domain boundaries with significant switching energy — radar transmitter interfaces, isolated motor drive feedback, or power converter telemetry — the internal shield provides the performance margin that unshielded optocouplers cannot guarantee. For broader aerospace and defense isolation requirements, Sparkle Electronics stocks the full Avago hermetic optocoupler range across speed, channel count, and CMR tiers.
Frequently Asked Questions
What does HCPL-6631 decode to?
HCPL = Hewlett-Packard Coupled Product Line (original HP optocoupler series, now Broadcom); 66 = hermetically sealed high-speed high CMR logic gate optocoupler family, 8-pin DIP package; 31 = dual-channel variant with enable. The HCPL-6630 is the dual-channel version without enable; the HCPL-5631 is the equivalent in an 8-pin DIP with different package marking convention.
Where can I buy HCPL-6631 in stock?
Sparkle Electronics maintains ready stock of the HCPL-6631 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 prime contractors, government procurement offices, and avionics systems integrators globally.
What is the DLA SMD number for HCPL-6631?
8102802 — the DLA Standard Microcircuit Drawing number for the HCPL-6631 Class H 8-pin DIP dual-channel hermetic high-CMR optocoupler. For Class K, the SMD numbers are 5962-9800102KPC (gold plate) and 5962-9800102KPA (solder dipped). Sparkle Electronics provides full lot documentation upon request.
What is the difference between HCPL-6631 and HCPL-2631?
The HCPL-6631 is the hermetically sealed, MIL-PRF-38534 Class H qualified version of the commercial HCPL-2631. Electrical performance — 10 MBd data rate, CMR, isolation voltage, TTL compatibility — is equivalent. The hermetic ceramic DIP package, QML-38534 certification, and DLA SMD dual-marking differentiate the military part. Programs transitioning from HCPL-2631 commercial designs to MIL-PRF-38534 qualified production hardware can substitute the HCPL-6631 without circuit redesign.
What does the Schottky-clamped open collector output require in system design?
Unlike the push-pull totem pole output of the HCPL-5430 or HCPL-5201, the open collector output of the HCPL-6631 requires an external pull-up resistor to define the logic high output voltage. The pull-up resistor value affects propagation delay, output current capability, and power consumption — lower resistance values give faster edges and more drive current at the cost of higher power dissipation. This is a well-understood design trade-off for open collector optocouplers that allows flexible logic level interfacing across different VCC supply levels.
Is HCPL-6631 suitable for satellite and space applications?
Yes. High radiation immunity, MIL-PRF-38534 Class K availability (SMD 5962-9800102KPC), hermetic ceramic packaging, and guaranteed −55°C to +125°C performance make the HCPL-6631 applicable to satellite and space programs. Class K screening must be specified for space-grade procurement. Contact Sparkle Electronics to confirm Class K availability and lead time for your program.
Sourcing HCPL-6631 for a high-CMR defense isolation requirement? Sparkle Electronics stocks the full Avago/Broadcom hermetic optocoupler range — from 100 KBd Darlington to 40 Mbps logic gate — with complete MIL-PRF-38534 Class H and K documentation support. Submit an inquiry — same-day response on pricing, class level, and lead time.
