HCPL-260L-320E Equivalent & Substitute Parts

Part Overview

The HCPL-260L-320E is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications requiring 5000Vrms isolation voltage. This component features open collector output with Schottky clamping, supporting data rates up to 15MBd with 10kV/µs common mode transient immunity. The part is currently in active production status with 874 units in stock.

Substitute parts are necessary when the HCPL-260L-320E becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when equivalent performance specifications can be met by alternative manufacturers while maintaining circuit functionality.

Substiute Parts

HCPL-260L-320E

Broadcom LimitedIn Stock: 959HCPL-260L-320E Datasheet

Current PartRFQ

FOD260LS

onsemiIn Stock: 1375FOD260LS Datasheet

MFR RecommendedRFQ

FOD260LSD

onsemiIn Stock: 1463FOD260LSD Datasheet

MFR RecommendedRFQ

HCPL2601SD

onsemiIn Stock: 23190HCPL2601SD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCPL-260L-320E is determined by the following critical parameters:

• Voltage - Isolation: 5000Vrms minimum
• Number of Channels: 1
• Output Type: Open Collector with Schottky Clamping
• Current - Output / Channel: 50 mA minimum
• Operating Temperature Range: -40°C ~ 85°C
• Package / Case: 8-SMD, Gull Wing form factor
• Input Type: DC
• RoHS3 Compliance

Substitute parts must maintain compatibility across these parameters. Variations in data rate, propagation delay, and common mode transient immunity are permissible provided the substitute meets or exceeds the minimum isolation voltage and output current specifications. Packaging format (Tube, Tape & Reel, or Cut Tape) does not affect electrical substitutability but may impact procurement and assembly processes.

Parameter Comparison

Engineering Selection Recommendations

FOD260LS and FOD260LSD are direct electrical equivalents to the HCPL-260L-320E. Both parts are manufactured by onsemi, maintain 5000Vrms isolation voltage, support 50 mA output current, and operate across the required temperature range. These substitutes offer superior common mode transient immunity (25kV/µs versus 10kV/µs), providing enhanced performance in high-noise environments. Both parts are in active production status with substantial inventory availability. The primary distinction between FOD260LS and FOD260LSD is packaging format: Tube versus Tape & Reel, respectively.

HCPL2601SD is not recommended as a direct substitute. Although it maintains the 8-SMD Gull Wing package and 50 mA output current, it provides only 2500Vrms isolation voltage—50% lower than the HCPL-260L-320E specification. Additionally, HCPL2601SD is classified as obsolete, indicating discontinued production and limited future availability. This part is suitable only for applications where 2500Vrms isolation is sufficient.

For new designs and ongoing production, FOD260LS or FOD260LSD are the preferred substitutes, with selection based on packaging requirements. For legacy systems currently using HCPL-260L-320E, FOD260LS provides the closest match in packaging format (Tube).

Frequently Asked Questions (FAQ)

Q: Can FOD260LS directly replace HCPL-260L-320E in existing designs?

A: Yes. Both parts share identical isolation voltage (5000Vrms), output current (50 mA), package form factor (8-SMD Gull Wing), and operating temperature range (-40°C ~ 85°C). FOD260LS exceeds the HCPL-260L-320E in common mode transient immunity and maintains RoHS3 compliance. No circuit modifications are required.

Q: What is the difference between FOD260LS and FOD260LSD?

A: Both parts are electrically identical. The difference is packaging format: FOD260LS is supplied in Tube format, while FOD260LSD is supplied in Tape & Reel (TR) format. Selection depends on manufacturing process requirements and procurement preferences.

Q: Why is HCPL2601SD listed as a substitute if it has lower isolation voltage?

A: HCPL2601SD is listed as a substitute only for applications where 2500Vrms isolation voltage is acceptable. It is not a direct replacement for the HCPL-260L-320E in circuits requiring 5000Vrms isolation. Additionally, HCPL2601SD is obsolete and should not be selected for new designs.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. FOD260LS, FOD260LSD, and HCPL2601SD are all RoHS3 compliant, matching the compliance status of the HCPL-260L-320E.

Q: What is the impact of lower data rate in FOD260LS compared to HCPL-260L-320E?

A: FOD260LS supports 10Mbps data rate versus 15MBd for HCPL-260L-320E. This difference is acceptable for applications operating at or below 10Mbps. For applications requiring 15MBd performance, HCPL-260L-320E remains the specified component.

Q: Can HCPL2601SD be used in applications requiring 5000Vrms isolation?

A: No. HCPL2601SD provides only 2500Vrms isolation voltage and does not meet the isolation requirements of circuits designed for 5000Vrms. Use FOD260LS or FOD260LSD for 5000Vrms applications.