HCPL0701R2 Equivalent & Substitute Parts

Part Overview

The HCPL0701R2 is an optoisolator with Darlington output manufactured by onsemi. This single-channel device provides 2500Vrms isolation and is housed in an 8-SOIC surface mount package. The part is currently active in production with 3440 units in stock. Equivalent and substitute parts are identified based on matching electrical characteristics, package compatibility, and functional equivalence for optoisolator applications requiring galvanic isolation.

Key Parameters

Parameter	Value
Manufacturer Part Number	HCPL0701R2
Manufacturer	onsemi
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	2500Vrms
Output Type	Darlington with Base
Voltage - Output (Max)	18V
Current - Output / Channel	60mA
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 85°C
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the HCPL0701R2 are identified from the Broadcom Limited HCPL-070A series based on the following substitution criteria:

Matching Parameters:

Single-channel optoisolator configuration
Darlington output with base connection
8-SOIC surface mount package (0.154", 3.90mm width)
Maximum output voltage of 18V
Maximum output current of 60mA per channel
DC input type
Unlimited moisture sensitivity level (MSL 1)
Forward voltage (Vf) of 1.25V typical
EAR99 export classification

Allowable Variations:

Voltage isolation rating: HCPL-070A series provides 3750Vrms, which exceeds the 2500Vrms requirement and is acceptable for applications requiring equal or greater isolation
Operating temperature range: HCPL-070A series operates 0°C ~ 70°C, which is a subset of the HCPL0701R2 range (-40°C ~ 85°C); applications must confirm compatibility within this narrower range
Current transfer ratio specifications differ between parts but both provide adequate gain for typical applications
RoHS compliance varies by specific part number variant

Parameter Comparison

Parameter	HCPL0701R2	HCPL-070A	HCPL-070A-000E	HCPL-070A-500E
Manufacturer	onsemi	Broadcom Limited	Broadcom Limited	Broadcom Limited
Number of Channels	1	1	1	1
Voltage - Isolation	2500Vrms	3750Vrms	3750Vrms	3750Vrms
Current Transfer Ratio (Min)	500% @ 1.6mA	600% @ 500µA	600% @ 500µA	600% @ 500µA
Current Transfer Ratio (Max)	2600% @ 1.6mA	8000% @ 500µA	8000% @ 500µA	8000% @ 500µA
Turn On / Turn Off Time (Typ)	300ns, 1.6µs	3µs, 34µs	3µs, 34µs	3µs, 34µs
Output Type	Darlington with Base	Darlington with Base	Darlington with Base	Darlington with Base
Voltage - Output (Max)	18V	18V	18V	18V
Current - Output / Channel	60mA	60mA	60mA	60mA
Voltage - Forward (Vf) (Typ)	1.25V	1.25V	1.25V	1.25V
Current - DC Forward (If) (Max)	20mA	5mA	5mA	5mA
Operating Temperature	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
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)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Tape & Reel (TR)	Tube	Tube	Cut Tape (CT) & Digi-Reel®
Inventory	3440 Pcs	2340 Pcs	1377 Pcs	6420 Pcs

Engineering Selection Recommendations

HCPL-070A-000E and HCPL-070A-500E are the preferred substitutes for the HCPL0701R2 based on RoHS3 compliance matching. Both parts maintain active product status and provide higher isolation voltage (3750Vrms versus 2500Vrms), which is acceptable for applications designed for the original part.

HCPL-070A is functionally equivalent but carries RoHS non-compliant status. Selection of this variant requires confirmation that RoHS compliance is not a requirement for the end application.

All three substitute parts operate within the narrower temperature range of 0°C ~ 70°C. Applications requiring operation below 0°C or above 70°C must retain the HCPL0701R2.

The HCPL-070A-500E offers the highest inventory availability (6420 units) with ROHS3 compliance and Cut Tape packaging suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can HCPL-070A series parts directly replace HCPL0701R2 in all applications?

A: Direct replacement is possible for applications operating within 0°C ~ 70°C. The HCPL-070A series provides higher isolation voltage (3750Vrms), which is acceptable. However, applications requiring operation below 0°C or above 70°C must use the HCPL0701R2 or confirm compatibility with the narrower temperature range.

Q: What is the difference between HCPL-070A, HCPL-070A-000E, and HCPL-070A-500E?

A: All three are functionally identical optoisolators with matching electrical specifications. The differences are packaging format and RoHS compliance. HCPL-070A uses Tube packaging and is RoHS non-compliant. HCPL-070A-000E uses Tube packaging and is ROHS3 compliant. HCPL-070A-500E uses Cut Tape & Digi-Reel packaging and is ROHS3 compliant.

Q: Are the package dimensions identical between HCPL0701R2 and HCPL-070A series?

A: Yes. All parts use 8-SOIC surface mount packages with 0.154" (3.90mm) width, ensuring mechanical compatibility on PCBs designed for the HCPL0701R2.

Q: What is the impact of the lower maximum forward current (If) in HCPL-070A series?

A: HCPL-070A series parts specify 5mA maximum forward current compared to 20mA for HCPL0701R2. Circuit designs must confirm that input LED current requirements do not exceed 5mA. Most applications operate well within this specification.

Q: Which substitute part should be selected for new designs?

A: HCPL-070A-500E is recommended for new designs due to ROHS3 compliance, highest inventory availability, and Cut Tape packaging suitable for automated assembly.

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