HCPL0701R1 Equivalent & Substitute Parts

Part Overview

The HCPL0701R1 is a single-channel optoisolator with Darlington output and base connection, manufactured by onsemi. This component provides 2500Vrms isolation and is designed for DC input applications requiring galvanic isolation with high current transfer ratio performance. The part is currently obsolete, making equivalent substitutes necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	HCPL0701R1
Manufacturer	onsemi
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	2500Vrms
Current Transfer Ratio (Min)	500% @ 1.6mA
Current Transfer Ratio (Max)	2600% @ 1.6mA
Turn On / Turn Off Time (Typ)	300ns, 1.6µs
Input Type	DC
Output Type	Darlington with Base
Voltage - Output (Max)	18V
Current - Output / Channel	60mA
Voltage - Forward (Vf) (Typ)	1.25V
Current - DC Forward (If) (Max)	20mA
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the HCPL0701R1 is determined by the following critical parameters:

Number of Channels: Must be 1 (single-channel)
Output Type: Must be Darlington with Base
Package / Case: Must be 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Must be Surface Mount
Input Type: Must be DC
Voltage - Isolation: Minimum 2500Vrms (equal or higher acceptable)
Current Transfer Ratio: Minimum 500% @ specified test current
Voltage - Output (Max): Must be 18V or higher
Current - Output / Channel: Must be 60mA or higher
Operating Temperature Range: Must encompass -40°C ~ 85°C or be compatible with application requirements

Substitute parts are categorized as follows:

Parametric Equivalent: HCPL0701R2 matches all electrical and mechanical specifications identically to the main part, with identical isolation voltage (2500Vrms) and current transfer ratio parameters.

Direct Manufacturer Equivalent: HCPL-0701-500E provides higher isolation voltage (3750Vrms) with identical package and output specifications, suitable for applications requiring enhanced isolation margin.

Similar Alternatives: HCPL-070A, HCPL-070A#500, HCPL-070A#560, HCPL-070A-000E, and HCPL-070A-500E share the same package and isolation voltage (3750Vrms) but operate at different input current levels (500µA vs. 1.6mA) with different current transfer ratio characteristics and operating temperature ranges (0°C ~ 70°C).

Parameter Comparison

Parameter	HCPL0701R1	HCPL0701R2	HCPL-0701-500E	HCPL-070A	HCPL-070A-500E
Manufacturer	onsemi	Fairchild Semiconductor	Broadcom Limited	Broadcom Limited	Broadcom Limited
Product Status	Obsolete	Active	Active	Active	Active
Number of Channels	1	1	1	1	1
Voltage - Isolation	2500Vrms	2500Vrms	3750Vrms	3750Vrms	3750Vrms
Current Transfer Ratio (Min)	500% @ 1.6mA	500% @ 1.6mA	500% @ 1.6mA	600% @ 500µA	600% @ 500µA
Current Transfer Ratio (Max)	2600% @ 1.6mA	2600% @ 1.6mA	2600% @ 1.6mA	8000% @ 500µA	8000% @ 500µA
Turn On / Turn Off Time (Typ)	300ns, 1.6µs	300ns, 1.6µs	200ns, 2µs	3µs, 34µs	3µs, 34µs
Input Type	DC	DC	DC	DC	DC
Output Type	Darlington with Base	Darlington with Base	Darlington with Base	Darlington with Base	Darlington with Base
Voltage - Output (Max)	18V	18V	18V	18V	18V
Current - Output / Channel	60mA	60mA	60mA	60mA	60mA
Voltage - Forward (Vf) (Typ)	1.25V	1.25V	1.4V	1.25V	1.25V
Current - DC Forward (If) (Max)	20mA	20mA	20mA	5mA	5mA
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
RoHS Status	Not specified	Not specified	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

HCPL0701R2 is the primary substitute for direct replacement. This part is active and maintains identical electrical specifications including isolation voltage (2500Vrms), current transfer ratio parameters (500% to 2600% @ 1.6mA), switching times (300ns, 1.6µs), and operating temperature range (-40°C ~ 85°C). Pin-for-pin compatibility and identical package specifications ensure seamless integration into existing designs.

HCPL-0701-500E is suitable for applications where enhanced isolation voltage (3750Vrms) provides additional safety margin. This Broadcom part maintains the same input current level (1.6mA) and current transfer ratio range as the original, with identical output specifications and operating temperature range. ROHS3 compliance supports modern manufacturing requirements.

HCPL-070A series (including HCPL-070A, HCPL-070A#500, HCPL-070A#560, HCPL-070A-000E, HCPL-070A-500E) offers higher isolation voltage (3750Vrms) but operates at reduced input current (500µA vs. 1.6mA) with significantly higher current transfer ratio (600% to 8000% @ 500µA). These parts are suitable only for applications where the reduced input current requirement and narrower operating temperature range (0°C ~ 70°C) are acceptable. HCPL-070A-000E and HCPL-070A-500E provide ROHS3 compliance.

For applications requiring the full -40°C ~ 85°C operating range and 1.6mA input current specification, HCPL0701R2 or HCPL-0701-500E are the appropriate selections. For applications operating within 0°C ~ 70°C with lower input current requirements, HCPL-070A series parts provide viable alternatives with enhanced isolation voltage.

Frequently Asked Questions (FAQ)

Q: Can HCPL0701R2 be used as a direct replacement for HCPL0701R1?

A: Yes. HCPL0701R2 is a parametric equivalent with identical electrical and mechanical specifications. All critical parameters including isolation voltage (2500Vrms), current transfer ratio (500% to 2600% @ 1.6mA), switching times, output voltage/current ratings, and operating temperature range (-40°C ~ 85°C) match the original part. The 8-SOIC package is identical.

Q: What is the difference between HCPL-0701-500E and HCPL0701R1?

A: HCPL-0701-500E provides higher isolation voltage (3750Vrms vs. 2500Vrms) while maintaining identical input current level (1.6mA), current transfer ratio range (500% to 2600%), and operating temperature range (-40°C ~ 85°C). All other electrical and mechanical specifications are identical. This part is suitable for applications requiring enhanced isolation margin.

Q: Why do HCPL-070A series parts have different input current specifications?

A: HCPL-070A series parts are designed for 500µA input current operation, compared to 1.6mA for HCPL0701R1. This results in different current transfer ratio characteristics (600% to 8000% @ 500µA) and reduced maximum forward current (5mA vs. 20mA). These parts are not direct replacements but may be suitable for applications with different input drive requirements.

Q: Can HCPL-070A series parts be used in applications requiring -40°C ~ 85°C operation?

A: No. HCPL-070A series parts are rated for 0°C ~ 70°C operating temperature range, which does not encompass the full -40°C ~ 85°C range of the original HCPL0701R1. Use of these parts outside their specified temperature range is not supported.

Q: Are all substitute parts available in the same packaging options?

A: All substitute parts use the 8-SOIC (0.154", 3.90mm Width) package, ensuring mechanical compatibility. However, packaging formats (Bulk, Cut Tape, Tube, Tape & Reel) vary by part number and supplier. Verify packaging availability with your supplier for production requirements.

Q: What is the significance of RoHS compliance in substitute selection?

A: HCPL-0701-500E, HCPL-070A-000E, and HCPL-070A-500E are ROHS3 compliant, supporting modern manufacturing and environmental regulations. HCPL0701R2 and HCPL-070A are not specified as RoHS compliant. Select ROHS3 compliant parts for applications requiring regulatory compliance.

Q: Can HCPL-070A-500E replace HCPL0701R1 in all applications?

A: HCPL-070A-500E is not a direct replacement due to three key differences: (1) reduced input current specification (500µA vs. 1.6mA), (2) narrower operating temperature range (0°C ~ 70°C vs. -40°C ~ 85°C), and (3) different current transfer ratio characteristics (600% to 8000% @ 500µA vs. 500% to 2600% @ 1.6mA). Use only in applications where these differences are acceptable.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message