HCPL-261N-520 Equivalent & Substitute Parts

Part Overview

The HCPL-261N-520 is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This component provides 5000Vrms isolation with 10MBd data rate capability and open collector Schottky clamped output configuration. The part is currently discontinued at DiGi Electronics, making identification of equivalent substitute components essential for ongoing system support and new design implementations.

Substiute Parts

HCPL-261N-520

Broadcom LimitedIn Stock: 1089HCPL-261N-520 Datasheet

Current PartRFQ

HCPL-261N-520E

Broadcom LimitedIn Stock: 782HCPL-261N-520E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the HCPL-261N-520 are identified based on strict electrical and mechanical parameter matching. The primary substitution criterion is the HCPL-261 base product family, which maintains identical functional specifications across packaging and supply chain variants.

The key parameters that determine substitution eligibility are:

• Voltage isolation rating: 5000Vrms
• Common mode transient immunity: 1kV/µs minimum
• Data rate: 10MBd
• Output configuration: Open collector with Schottky clamping
• Output current capability: 50 mA per channel
• Supply voltage range: 4.5V to 5.5V
• Package type: 8-DIP Gull Wing surface mount
• Operating temperature range: -40°C to 85°C

Parameter Comparison

Engineering Selection Recommendations

The HCPL-261N-520E is the direct functional equivalent of the HCPL-261N-520. Both components share identical electrical specifications, performance characteristics, and package configuration. The primary differences are product status and compliance certifications.

The HCPL-261N-520E is currently in active production status, whereas the original HCPL-261N-520 is discontinued. For new designs and ongoing system support, the HCPL-261N-520E is the appropriate selection. The HCPL-261N-520E carries ROHS3 compliance and MSL Level 1 rating, providing enhanced environmental and regulatory alignment for modern manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can HCPL-261N-520E be used as a direct replacement for HCPL-261N-520?

A: Yes. Both components are electrically and mechanically identical. All electrical parameters, timing specifications, isolation ratings, and package dimensions are equivalent. The HCPL-261N-520E is the active production variant.

Q: What is the difference between bulk and Tape & Reel packaging?

A: Bulk packaging (HCPL-261N-520) is supplied loose, typically for manual assembly or small-quantity applications. Tape & Reel packaging (HCPL-261N-520E) is supplied on continuous tape for automated pick-and-place assembly. Both contain identical components; packaging format differs only for handling and assembly methodology.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance is a material composition and environmental standard, not an electrical specification. Both parts perform identically in circuit. ROHS3 compliance on the HCPL-261N-520E indicates adherence to current environmental regulations.

Q: Are there any thermal or reliability differences between these parts?

A: No. Both components share identical operating temperature ranges (-40°C to 85°C) and all thermal and reliability specifications. The MSL Level 1 rating on the HCPL-261N-520E indicates unlimited moisture exposure tolerance during storage and handling.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. The 8-DIP Gull Wing package and pin configuration are identical. No PCB layout modifications are required for substitution.