HCPL-4661#320 Equivalent & Substitute Parts

Part Overview

The HCPL-4661#320 is a Logic Output Optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This 2-channel device provides 5000Vrms isolation with open collector, Schottky clamped outputs and supports data rates up to 10MBd. The part is currently active in production. Substitute parts are identified to address inventory availability, compliance requirements, or specific packaging preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

HCPL-4661#320

Broadcom LimitedIn Stock: 1160HCPL-4661#320 Datasheet

Current PartRFQ

HCPL-4661-320E

Broadcom LimitedIn Stock: 5874HCPL-4661-320E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HCPL-4661#320 with HCPL-4661-320E is based on identical electrical and mechanical specifications. Both parts share the same base product number (HCPL-4661), channel configuration, isolation voltage, CMTI rating, output type, current rating, data rate, supply voltage range, operating temperature range, and package type. The substitution is valid because all critical parameters that determine functional compatibility remain unchanged between the two part numbers.

Parameter Comparison

Engineering Selection Recommendations

The HCPL-4661-320E serves as a direct substitute for the HCPL-4661#320. The primary distinction between these parts is compliance status: HCPL-4661#320 is RoHS non-compliant, while HCPL-4661-320E is ROHS3 compliant. Both parts maintain REACH Unaffected status. Selection between these parts should be based on regulatory requirements applicable to the end application. If RoHS3 compliance is mandated, HCPL-4661-320E is the appropriate choice. Both parts are active products with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can HCPL-4661-320E replace HCPL-4661#320 in existing designs?

A: Yes. All electrical parameters, timing characteristics, output specifications, supply voltage requirements, and operating temperature ranges are identical. The 8-SMD Gull Wing package is the same for both parts. Substitution is electrically and mechanically valid.

Q: What is the primary difference between these part numbers?

A: The primary difference is RoHS compliance status. HCPL-4661#320 is RoHS non-compliant, while HCPL-4661-320E is ROHS3 compliant. All other specifications remain unchanged.

Q: Are there any package or pinout differences?

A: No. Both parts use the identical 8-SMD Gull Wing package with the same pinout configuration. PCB layout and footprint requirements are identical.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory requirements. For applications requiring RoHS3 compliance, use HCPL-4661-320E. Both parts are active products with production support.

Q: Are the isolation voltage and CMTI ratings identical?

A: Yes. Both parts provide 5000Vrms isolation voltage and 15kV/µs common mode transient immunity. All high-voltage performance characteristics are matched.

Q: What is the data rate capability of these optoisolators?

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