HCPL-2631#320 Equivalent & Substitute Parts

Part Overview

The HCPL-2631#320 is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This component provides 5000Vrms isolation with 2-channel open collector output and Schottky clamping, supporting data rates up to 10MBd. The part is currently discontinued at DiGi Electronics, making identification of suitable substitutes necessary for ongoing design support and procurement.

Substiute Parts

HCPL-2631#320

Broadcom LimitedIn Stock: 962HCPL-2631#320 Datasheet

Current PartRFQ

HCPL-2631-320E

Broadcom LimitedIn Stock: 1076HCPL-2631-320E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the HCPL-2631#320 is determined by strict equivalence across the following critical parameters:

• Number of channels: 2
• Isolation voltage: 5000Vrms
• Common mode transient immunity: 10kV/µs minimum
• Output configuration: Open collector with Schottky clamping
• Output current per channel: 50 mA
• Data rate: 10MBd
• Propagation delay specifications: 100ns maximum for both tpLH and tpHL
• Supply voltage range: 4.5V to 5.5V
• Package type: 8-SMD, Gull Wing
• Operating temperature range: -40°C to 85°C

The HCPL-2631-320E meets all these parameters and is manufactured by the same supplier, making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The HCPL-2631-320E is the direct substitute for the discontinued HCPL-2631#320. Both parts are manufactured by Broadcom Limited and share identical electrical and mechanical specifications. The primary distinction is product status and compliance certification:

• HCPL-2631#320: Discontinued at DiGi Electronics; RoHS non-compliant
• HCPL-2631-320E: Active product status; ROHS3 compliant

For new designs or ongoing procurement, the HCPL-2631-320E is the appropriate selection due to its active availability and RoHS3 compliance status. Both parts are functionally interchangeable in applications requiring 5000Vrms isolation, 2-channel open collector output, and 10MBd data rate performance.

Frequently Asked Questions (FAQ)

Q: Can HCPL-2631-320E directly replace HCPL-2631#320 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including isolation voltage, channel count, output configuration, data rate, timing characteristics, and package type. No circuit modifications are required.

Q: What is the difference between HCPL-2631#320 and HCPL-2631-320E?

A: The primary differences are product status and regulatory compliance. HCPL-2631#320 is discontinued and RoHS non-compliant, while HCPL-2631-320E is an active product with ROHS3 compliance. All electrical and mechanical specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the same 8-SMD, Gull Wing package configuration with identical pinout and mechanical dimensions.

Q: What isolation voltage does this optoisolator provide?

A: Both parts provide 5000Vrms isolation with 10kV/µs common mode transient immunity, suitable for high-voltage isolation applications.

Q: What is the maximum data rate supported?

A: Both parts support a maximum data rate of 10MBd with propagation delays of 100ns maximum for both rising and falling edges.

Q: Is RoHS compliance a requirement for my application?

A: If RoHS3 compliance is mandated by your design specifications or customer requirements, HCPL-2631-320E must be used. HCPL-2631#320 does not meet RoHS requirements.