HCPL0601R1 Optoisolator Equivalent & Substitute Parts

Part Overview

The HCPL0601R1 is a logic output optoisolator manufactured by onsemi, designed for high-speed isolation applications requiring 3750Vrms isolation voltage and 10Mbps data rate capability. This component features open collector output, single-channel configuration, and 10kV/µs common mode transient immunity in an 8-SOIC surface mount package. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring similar electrical and mechanical characteristics.

Key Parameters

Parameter	Value
Manufacturer Part Number	HCPL0601R1
Manufacturer	onsemi
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	3750Vrms
Common Mode Transient Immunity (Min)	10kV/µs
Input Type	DC
Output Type	Open Collector
Current - Output / Channel	50 mA
Data Rate	10Mbps
Propagation Delay tpLH / tpHL (Max)	75ns / 75ns
Voltage - Supply	4.5V ~ 5.5V
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 eligibility for the HCPL0601R1 is determined by strict alignment with the following critical parameters:

Isolation Voltage: 3750Vrms (mandatory match)
Number of Channels: 1 (mandatory match)
Input Type: DC (mandatory match)
Output Type: Open Collector (mandatory match)
Current - Output / Channel: 50 mA (mandatory match)
Voltage - Supply: 4.5V ~ 5.5V (mandatory match for primary supply range)
Operating Temperature: -40°C ~ 85°C (mandatory match)
Mounting Type: Surface Mount (mandatory match)
Package / Case: 8-SOIC (0.154", 3.90mm Width) (mandatory match)

Substitute parts are grouped into two categories based on performance characteristics:

Category A - Direct Performance Equivalents: Parts meeting all mandatory parameters with identical or superior data rate (10Mbps or higher) and propagation delay specifications. These include HCPL0601R2 (Fairchild Semiconductor, Active status).

Category B - Enhanced Performance Variants: Parts meeting all mandatory parameters with improved performance characteristics such as higher data rate (15MBd), faster rise/fall times, or lower forward voltage. These include HCPL-060L series variants (Broadcom Limited, Active status) and HCPL-061A series variants (Broadcom Limited, Active status).

Parameter Comparison

Parameter	HCPL0601R1	HCPL0601R2	HCPL-060L	HCPL-060L-000E	HCPL-060L-060E	HCPL-060L-500E	HCPL-060L-560	HCPL-060L-560E	HCPL-061A	HCPL-061A-000E	HCPL-061A-500E
Manufacturer	onsemi	Fairchild Semiconductor	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Number of Channels	1	1	1	1	1	1	1	1	1	1	1
Voltage - Isolation	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms	3750Vrms
Common Mode Transient Immunity (Min)	10kV/µs	10kV/µs	10kV/µs	10kV/µs	10kV/µs	10kV/µs	10kV/µs	10kV/µs	1kV/µs	1kV/µs	1kV/µs
Input Type	DC	DC	DC	DC	DC	DC	DC	DC	DC	DC	DC
Output Type	Open Collector	Open Collector	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped	Open Collector, Schottky Clamped
Current - Output / Channel	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA
Data Rate	10Mbps	10Mbps	15MBd	15MBd	15MBd	15MBd	15MBd	15MBd	10MBd	10MBd	10MBd
Propagation Delay tpLH / tpHL (Max)	75ns / 75ns	75ns / 75ns	75ns / 75ns	75ns / 75ns	75ns / 75ns	75ns / 75ns	75ns / 75ns	75ns / 75ns	100ns / 100ns	100ns / 100ns	100ns / 100ns
Rise / Fall Time (Typ)	50ns / 12ns	50ns / 12ns	24ns / 10ns	24ns / 10ns	24ns / 10ns	24ns / 10ns	24ns / 10ns	24ns / 10ns	42ns / 12ns	42ns / 12ns	42ns / 12ns
Voltage - Forward (Vf) (Typ)	1.75V	1.75V	1.5V	1.5V	1.5V	1.5V	1.5V	1.5V	1.3V	1.3V	1.3V
Current - DC Forward (If) (Max)	50mA	50mA	20mA	20mA	20mA	20mA	20mA	20mA	10mA	10mA	10mA
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	2.7V ~ 3.6V, 4.5V ~ 5.5V	2.7V ~ 3.6V, 4.5V ~ 5.5V	2.7V ~ 3.6V, 4.5V ~ 5.5V	2.7V ~ 3.6V, 4.5V ~ 5.5V	2.7V ~ 3.6V, 4.5V ~ 5.5V	2.7V ~ 3.6V, 4.5V ~ 5.5V	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	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
RoHS Status	Not specified	Not specified	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Not specified	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute - Category A (Direct Equivalent):

HCPL0601R2 (Fairchild Semiconductor) is the direct functional equivalent to the obsolete HCPL0601R1. This part maintains identical electrical specifications including 10Mbps data rate, 75ns propagation delay, and 50mA output current. The part is in Active product status, ensuring long-term availability and supply chain stability. Selection of HCPL0601R2 requires no circuit redesign and provides drop-in replacement capability.

Secondary Substitutes - Category B (Enhanced Performance):

The HCPL-060L series (Broadcom Limited) offers enhanced performance with 15MBd data rate capability, faster rise/fall times (24ns/10ns), and lower forward voltage (1.5V). All variants maintain the mandatory 10kV/µs CMTI specification and 3750Vrms isolation. Multiple packaging options are available:

HCPL-060L-500E: Cut Tape & Digi-Reel packaging, ROHS3 Compliant, 24,075 units in stock
HCPL-060L-560E: Tape & Reel packaging, ROHS3 Compliant, 2,100 units in stock
HCPL-060L-000E: Tube packaging, ROHS3 Compliant, 1,760 units in stock
HCPL-060L-060E: Tube packaging, ROHS3 Compliant, 901 units in stock

The HCPL-061A series (Broadcom Limited) provides alternative performance with 10MBd data rate and 1kV/µs CMTI (lower than the original 10kV/µs specification). This series is suitable only for applications where reduced CMTI is acceptable. Available variants include:

HCPL-061A-500E: Cut Tape & Digi-Reel packaging, ROHS3 Compliant, 20,300 units in stock
HCPL-061A-000E: Tube packaging, ROHS3 Compliant, 2,064 units in stock
HCPL-061A: Packaging not specified, RoHS non-compliant, 2,100 units in stock

For applications requiring RoHS3 compliance, select variants with "-000E", "-500E", or "-560E" suffixes. For applications with no RoHS requirement, non-compliant variants offer equivalent electrical performance.

Frequently Asked Questions (FAQ)

Q: Can HCPL-061A series parts replace HCPL0601R1 in all applications?

A: HCPL-061A series parts meet most mandatory parameters but feature reduced Common Mode Transient Immunity (1kV/µs versus 10kV/µs). These parts are suitable only for applications where lower CMTI is acceptable. Applications requiring 10kV/µs CMTI must use HCPL0601R2 or HCPL-060L series.

Q: What is the difference between HCPL-060L variants with different suffixes (-000E, -500E, -560E)?

A: The suffixes indicate packaging format and RoHS compliance status. "-000E" denotes Tube packaging with ROHS3 compliance. "-500E" denotes Cut Tape & Digi-Reel packaging with ROHS3 compliance. "-560E" denotes Tape & Reel packaging with ROHS3 compliance. All variants maintain identical electrical specifications.

Q: Are HCPL-060L parts pin-compatible with HCPL0601R1?

A: Yes. All substitute parts use the 8-SOIC (0.154", 3.90mm Width) package with identical pinout. PCB layout modifications are not required for mechanical compatibility.

Q: Does the improved data rate of HCPL-060L (15MBd) affect circuit operation if the original design uses 10Mbps?

A: No. Higher data rate capability is backward compatible. Circuits designed for 10Mbps operation function correctly with 15MBd-capable parts. The faster rise/fall times (24ns/10ns versus 50ns/12ns) may reduce EMI in some applications.

Q: Which substitute part offers the best inventory availability?

A: HCPL-060L-500E (Broadcom Limited) offers the highest inventory level at 24,075 units in stock, providing supply chain security for high-volume applications.

Q: Can HCPL0601R2 be used as a long-term production solution?

A: Yes. HCPL0601R2 is in Active product status with established supply chains. However, HCPL-060L series variants offer enhanced performance characteristics and higher inventory levels, making them suitable for new design implementations.

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