HCPL-7601-000E Equivalent & Substitute Parts

Part Overview

The HCPL-7601-000E is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This component features 3750Vrms isolation voltage, open collector output with Schottky clamping, and supports data rates up to 10MBd. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

HCPL-7601-000E

Broadcom LimitedIn Stock: 29214HCPL-7601-000E Datasheet

Current PartRFQ

HCPL-261A-000E

Broadcom LimitedIn Stock: 1367HCPL-261A-000E Datasheet

MFR RecommendedRFQ

HCPL2601

onsemiIn Stock: 2352HCPL2601 Datasheet

MFR RecommendedRFQ

HCPL2611

onsemiIn Stock: 2165HCPL2611 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCPL-7601-000E is determined by the following critical parameters:

Primary Compatibility Criteria:

• Single channel configuration (1 input, 0 side 2 inputs)
• Open collector output topology with Schottky clamping
• 8-DIP through-hole package (0.300", 7.62mm)
• DC input type
• 4.5V to 5.5V supply voltage range
• Operating temperature range -40°C to 85°C

Secondary Compatibility Criteria:

• Data rate capability of 10MBd or higher
• Output current rating of 50 mA per channel
• Isolation voltage of 3750Vrms or greater

The HCPL-261A-000E qualifies as a direct substitute, maintaining identical isolation voltage and CMTI specifications. The HCPL2601 and HCPL2611 represent functional alternatives with reduced isolation voltage (2500Vrms) but enhanced CMTI performance, suitable for applications where lower isolation voltage is acceptable.

Parameter Comparison

Engineering Selection Recommendations

HCPL-261A-000E (Primary Substitute)

The HCPL-261A-000E is the recommended primary substitute for the HCPL-7601-000E. Both components are manufactured by Broadcom Limited and maintain identical isolation voltage (3750Vrms) and common mode transient immunity (1kV/µs) specifications. The HCPL-261A-000E holds active product status, ensuring long-term availability and supply chain stability. This part is ROHS3 compliant and packaged in tube format, providing superior environmental protection compared to the original part's unspecified packaging. Propagation delay increases from 75ns to 100ns maximum, which remains within acceptable limits for most 10MBd applications.

HCPL2601 and HCPL2611 (Alternative Substitutes)

The HCPL2601 and HCPL2611, both manufactured by onsemi, function as alternative substitutes when reduced isolation voltage (2500Vrms) is acceptable for the application. Both parts maintain 50 mA output current and 10Mbps data rate compatibility. The HCPL2611 provides superior common mode transient immunity at 10kV/µs compared to the original 1kV/µs specification, while the HCPL2601 offers 5kV/µs CMTI. Both alternatives are ROHS3 compliant. However, both parts carry obsolete product status, limiting their suitability for new long-term designs.

Frequently Asked Questions (FAQ)

Q: Can the HCPL-261A-000E directly replace the HCPL-7601-000E in existing designs?

A: Yes. Both components share identical isolation voltage (3750Vrms), common mode transient immunity (1kV/µs), output current rating (50 mA), data rate (10MBd), supply voltage range (4.5V–5.5V), and 8-DIP package dimensions. The HCPL-261A-000E is pin-compatible and functionally equivalent. Propagation delay increases from 75ns to 100ns maximum, which does not affect standard 10MBd applications.

Q: What are the key differences between HCPL-261A-000E and HCPL2601/HCPL2611?

A: The primary difference is isolation voltage. The HCPL-261A-000E maintains 3750Vrms isolation matching the original part, while HCPL2601 and HCPL2611 provide 2500Vrms isolation. The onsemi alternatives offer higher common mode transient immunity (5kV/µs and 10kV/µs respectively) compared to 1kV/µs in the original design. Both onsemi parts are obsolete, whereas HCPL-261A-000E is active.

Q: Are all substitute parts available in the same 8-DIP package?

A: Yes. All substitute parts listed are packaged in 8-DIP (0.300", 7.62mm) through-hole format, ensuring mechanical and electrical compatibility with existing PCB layouts and socket configurations.

Q: Which substitute should be selected for new designs?

A: The HCPL-261A-000E is the only active product among the substitutes and is the sole recommended choice for new designs. It provides equivalent performance to the original HCPL-7601-000E with the added benefit of ROHS3 compliance and active manufacturer support.

Q: Can HCPL2601 or HCPL2611 be used if isolation voltage requirements are lower?

A: Yes, if the application circuit design permits operation at 2500Vrms isolation instead of 3750Vrms, either onsemi part is functionally compatible. However, both parts are obsolete, making them unsuitable for designs requiring long-term component availability and supply chain continuity.