HCPL-2601-320E Equivalent & Substitute Parts

Part Overview

The HCPL-2601-320E is a logic output optoisolator manufactured by Broadcom Limited, designed for high-speed digital isolation applications. This 5000Vrms isolation device features open collector output with Schottky clamping, operating at 10MBd data rate with 10kV/µs common mode transient immunity. The component is housed in an 8-DIP Gull Wing package and maintains active product status with full RoHS3 compliance. Substitute parts are identified to address packaging preferences, supply chain availability, or specific performance parameter requirements while maintaining functional equivalence.

Key Parameters

Parameter	Value
Isolation Voltage	5000Vrms
Number of Channels	1
Output Type	Open Collector, Schottky Clamped
Data Rate	10MBd / 10Mbps
Output Current	50 mA
Supply Voltage Range	4.5V ~ 5.5V (main part); 3V ~ 5.5V (substitutes)
Operating Temperature	-40°C ~ 85°C
Input Type	DC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the HCPL-2601-320E is determined by the following critical parameters:

Isolation Voltage: 5000Vrms (mandatory match)
Number of Channels: 1 channel (mandatory match)
Output Configuration: Open Collector, Schottky Clamped (mandatory match)
Data Rate: 10MBd/10Mbps (mandatory match)
Output Current: 50 mA (mandatory match)
Operating Temperature Range: -40°C ~ 85°C (mandatory match)
Compliance: RoHS3 Compliant, MSL 1 (mandatory match)

The FOD260LS and FOD260LSD, both manufactured by onsemi, meet all mandatory substitution criteria. These parts are functionally equivalent optoisolators with identical isolation voltage, channel count, output type, data rate, and output current specifications. The primary differences are packaging format (Tube vs. Tape & Reel) and enhanced common mode transient immunity (25kV/µs vs. 10kV/µs), which represents an improvement over the main part specification.

Parameter Comparison

Parameter	HCPL-2601-320E (Broadcom)	FOD260LS (onsemi)	FOD260LSD (onsemi)
Manufacturer	Broadcom Limited	onsemi	onsemi
Isolation Voltage	5000Vrms	5000Vrms	5000Vrms
Number of Channels	1	1	1
Output Type	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped
Data Rate	10MBd	10Mbps	10Mbps
Output Current / Channel	50 mA	50 mA	50 mA
Common Mode Transient Immunity (Min)	10kV/µs	25kV/µs	25kV/µs
Propagation Delay tpLH / tpHL (Max)	100ns / 100ns	90ns / 75ns	90ns / 75ns
Rise / Fall Time (Typ)	24ns / 10ns	22ns / 3ns	22ns / 3ns
Voltage - Forward (Vf) (Typ)	1.5V	1.4V	1.4V
Current - DC Forward (If) (Max)	20mA	50mA	50mA
Supply Voltage Range	4.5V ~ 5.5V	3V ~ 5.5V	3V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-SMD, Gull Wing (8-DIP)	8-SMD, Gull Wing	8-SMD, Gull Wing
Packaging Format	Tube	Tube	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both FOD260LS and FOD260LSD are qualified substitutes for the HCPL-2601-320E based on functional equivalence and compliance requirements. Selection between these options depends on procurement and assembly requirements:

FOD260LS is supplied in Tube packaging and is suitable for applications requiring standard component handling and lower-volume assembly processes.

FOD260LSD is supplied in Tape & Reel format and is optimized for high-volume automated assembly operations where reel-based component feeding is standard.

Both substitute parts demonstrate improved electrical performance characteristics compared to the main part, including faster propagation delay, reduced rise/fall times, and enhanced common mode transient immunity. All three parts maintain identical isolation voltage, channel configuration, output type, and operating temperature specifications. Compliance certifications (RoHS3, REACH Unaffected, MSL 1) are consistent across all options.

Frequently Asked Questions (FAQ)

Q: Can FOD260LS or FOD260LSD be used as direct replacements for HCPL-2601-320E?

A: Yes. Both onsemi parts meet all mandatory substitution criteria: 5000Vrms isolation, 1 channel, open collector Schottky clamped output, 10Mbps data rate, 50 mA output current, and -40°C to 85°C operating temperature range. All three parts are RoHS3 compliant with MSL 1 rating.

Q: What is the difference between FOD260LS and FOD260LSD?

A: The primary difference is packaging format. FOD260LS is supplied in Tube packaging for standard component handling. FOD260LSD is supplied in Tape & Reel format for automated high-volume assembly. Electrical specifications and performance characteristics are identical between these two parts.

Q: Are there any performance differences between the HCPL-2601-320E and the substitute parts?

A: The substitute parts exhibit improved performance in several parameters. FOD260LS and FOD260LSD feature faster propagation delay (90ns/75ns vs. 100ns/100ns), faster rise/fall times (22ns/3ns vs. 24ns/10ns), and higher common mode transient immunity (25kV/µs vs. 10kV/µs). These represent enhancements over the main part specification.

Q: Is the supply voltage range compatible across all three parts?

A: The HCPL-2601-320E operates at 4.5V to 5.5V. The FOD260LS and FOD260LSD operate at 3V to 5.5V, providing a wider lower voltage range. Both ranges overlap at 4.5V to 5.5V, ensuring compatibility in standard 5V supply applications.

Q: Do all three parts have the same package footprint?

A: Yes. All three parts use 8-SMD Gull Wing package configuration with identical pinout and mechanical dimensions, enabling direct PCB layout compatibility.

Q: Are compliance certifications identical across all substitute options?

A: Yes. HCPL-2601-320E, FOD260LS, and FOD260LSD all carry RoHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating.

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