HCPL-261A#300 Equivalent & Substitute Parts

Part Overview

The HCPL-261A#300 is a Logic Output Optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This 3.75kV isolation rated device features open collector output with Schottky clamping, supporting 10MBd data rates and 1kV/µs common mode transient immunity. The part is currently in active production status. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

HCPL-261A#300

Broadcom LimitedIn Stock: 1232HCPL-261A#300 Datasheet

Current PartRFQ

HCPL-261A-300E

Broadcom LimitedIn Stock: 952HCPL-261A-300E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCPL-261A#300 are qualified based on strict equivalence across the following critical parameters:

• Isolation voltage rating: 3750Vrms
• Single channel configuration (1 input, 0 side 2 inputs)
• Open collector output with Schottky clamping topology
• Data rate capability: 10MBd minimum
• Common mode transient immunity: 1kV/µs minimum
• Output current per channel: 50 mA
• Propagation delay specifications: tpLH and tpHL maximum 100ns
• Supply voltage range: 4.5V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Package configuration: 8-SMD, Gull Wing (8-DIP Gull Wing)

Parts meeting all these parameters are classified as direct substitutes and may be used interchangeably in circuit designs without modification.

Parameter Comparison

Engineering Selection Recommendations

The HCPL-261A-300E serves as a direct electrical and mechanical substitute for the HCPL-261A#300. Both parts are manufactured by Broadcom Limited and share identical electrical specifications, isolation ratings, and package configurations.

The primary distinction between these parts is regulatory compliance status. The HCPL-261A-300E carries ROHS3 compliance certification, whereas the HCPL-261A#300 is RoHS non-compliant. Selection between these parts should be based on the regulatory requirements of the end application and target market. Applications requiring RoHS3 compliance must use HCPL-261A-300E. Applications without RoHS compliance mandates may use either part based on availability and supply chain considerations.

Both parts maintain identical electrical performance, thermal characteristics, and mechanical compatibility, ensuring seamless substitution at the circuit design level.

Frequently Asked Questions (FAQ)

Q: Can HCPL-261A-300E replace HCPL-261A#300 in existing designs?

A: Yes. The HCPL-261A-300E is electrically and mechanically equivalent to the HCPL-261A#300. All electrical parameters, isolation ratings, timing specifications, and package configurations are identical. Direct substitution is possible without circuit modification.

Q: What is the difference between HCPL-261A#300 and HCPL-261A-300E?

A: The parts are electrically identical. The HCPL-261A-300E is ROHS3 compliant, while the HCPL-261A#300 is RoHS non-compliant. This distinction affects regulatory eligibility for specific markets and applications.

Q: Are both parts available in the same package?

A: Yes. Both parts use the 8-SMD, Gull Wing package configuration with identical pin assignments and mechanical dimensions. They are compatible with the same PCB footprints and assembly processes.

Q: Which part should I select for new designs?

A: Selection depends on regulatory requirements. For applications requiring RoHS3 compliance, use HCPL-261A-300E. For applications without RoHS compliance mandates, either part may be selected based on availability and supply chain factors.

Q: Do these parts have the same isolation voltage rating?

A: Yes. Both parts provide 3750Vrms isolation voltage with 1kV/µs common mode transient immunity.

Q: Are the propagation delay and timing characteristics identical?

A: Yes. Both parts have identical propagation delay specifications (100ns maximum for both tpLH and tpHL), rise time (42ns typical), and fall time (12ns typical).