HCPL-7611-500E Equivalent & Substitute Parts

Part Overview

The HCPL-7611-500E is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications requiring 3750Vrms isolation voltage. This component features open collector output with Schottky clamping, 10MBd data rate capability, and 10kV/µs common mode transient immunity in an 8-DIP gull wing surface mount package.

The HCPL-7611-500E is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Manufacturer Part Number	HCPL-7611-500E
Manufacturer	Broadcom Limited
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	3750Vrms
Common Mode Transient Immunity (Min)	10kV/µs
Data Rate	10MBd
Output Type	Open Collector, Schottky Clamped
Current - Output / Channel	50 mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SMD, Gull Wing
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the HCPL-7611-500E is determined by the following critical parameters:

Isolation Voltage: Minimum 3750Vrms required for equivalent functionality
Output Configuration: Open collector topology with Schottky clamping
Data Rate: Minimum 10MBd capability
Common Mode Transient Immunity: Minimum 10kV/µs
Package Type: 8-DIP gull wing surface mount
Supply Voltage Range: 4.5V ~ 5.5V compatibility
Number of Channels: Single channel (1 channel)
Output Current: 50 mA per channel

The HCPL-2601-500E qualifies as a direct manufacturer-recommended substitute, maintaining all critical electrical parameters while offering active product status. The HCPL2601SD represents a lower-tier alternative with reduced isolation voltage (2500Vrms) and common mode transient immunity (5kV/µs), suitable only for applications with less stringent isolation requirements.

Parameter Comparison

Parameter	HCPL-7611-500E	HCPL-2601-500E	HCPL2601SD
Manufacturer	Broadcom Limited	Broadcom Limited	onsemi
Product Status	Obsolete	Active	Obsolete
Number of Channels	1	1	1
Voltage - Isolation	3750Vrms	3750Vrms	2500Vrms
Common Mode Transient Immunity (Min)	10kV/µs	10kV/µs	5kV/µs
Data Rate	10MBd	10MBd	10Mbps
Output Type	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector
Current - Output / Channel	50 mA	50 mA	50 mA
Propagation Delay tpLH / tpHL (Max)	75ns / 75ns	100ns / 100ns	75ns / 75ns
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Primary Substitute: HCPL-2601-500E

The HCPL-2601-500E is the manufacturer-recommended substitute for the HCPL-7611-500E. This part maintains electrical equivalence across all critical parameters: 3750Vrms isolation voltage, 10kV/µs common mode transient immunity, 10MBd data rate, and open collector Schottky clamped output. The HCPL-2601-500E holds active product status, ensuring long-term availability and supply chain stability. Both parts are REACH unaffected and comply with EAR99 export classification. The HCPL-2601-500E is available in cut tape and digi-reel packaging formats.

Secondary Substitute: HCPL2601SD

The HCPL2601SD is a lower-specification alternative suitable only for applications where reduced isolation voltage (2500Vrms) and common mode transient immunity (5kV/µs) are acceptable. This part is manufactured by onsemi and carries obsolete product status. Selection of this part requires verification that system isolation and transient immunity requirements do not exceed the specified limits. The HCPL2601SD is ROHS3 compliant and REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can the HCPL-2601-500E directly replace the HCPL-7611-500E without circuit modifications?

A: Yes. The HCPL-2601-500E maintains electrical equivalence across isolation voltage, common mode transient immunity, data rate, output configuration, and supply voltage specifications. Both parts use identical 8-DIP gull wing surface mount packaging. No circuit modifications are required for direct substitution.

Q: What are the key differences between HCPL-2601-500E and HCPL2601SD?

A: The HCPL-2601-500E provides 3750Vrms isolation voltage and 10kV/µs common mode transient immunity. The HCPL2601SD provides 2500Vrms isolation voltage and 5kV/µs common mode transient immunity. Both maintain 10MBd data rate and 50mA output current. The HCPL2601SD is suitable only for applications with lower isolation and transient immunity requirements.

Q: Are there packaging differences between substitute parts?

A: All three parts use 8-SMD gull wing surface mount packaging. The HCPL-2601-500E is available in cut tape and digi-reel packaging. The HCPL2601SD is available in cut tape packaging. Footprint and land pattern compatibility is maintained across all substitutes.

Q: What is the propagation delay difference between HCPL-7611-500E and HCPL-2601-500E?

A: The HCPL-7611-500E specifies maximum propagation delay of 75ns for both tpLH and tpHL. The HCPL-2601-500E specifies maximum propagation delay of 100ns for both tpLH and tpHL. This 25ns difference may impact timing-critical applications. System timing analysis is required to confirm compatibility.

Q: Are both substitute parts RoHS compliant?

A: The HCPL-2601-500E is ROHS3 compliant. The HCPL2601SD is ROHS3 compliant. Both parts are REACH unaffected and classified as EAR99 for export purposes.

Q: Why is the HCPL-7611-500E obsolete?

A: The HCPL-7611-500E is classified as obsolete by Broadcom Limited. The HCPL-2601-500E is the active replacement part, offering equivalent performance with improved supply availability.

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