HCPL-0731#500 Equivalent & Substitute Parts

Part Overview

The HCPL-0731#500 is a 2-channel optoisolator with Darlington output manufactured by Broadcom Limited. This component provides 3750Vrms isolation voltage and is designed for applications requiring high-voltage signal isolation in industrial and power management circuits. The part is currently active in production with 2134 units in stock. Substitute parts are necessary to address packaging preferences, compliance requirements, or inventory availability across different distribution channels and manufacturing locations.

Key Parameters

Parameter	Value
Number of Channels	2
Voltage - Isolation	3750Vrms
Current Transfer Ratio (Min)	500% @ 1.6mA
Current Transfer Ratio (Max)	2600% @ 1.6mA
Output Type	Darlington
Voltage - Output (Max)	18V
Current - Output / Channel	60mA
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Operating Temperature	0°C ~ 70°C

Substitute Part Grouping Explanation

Substitution eligibility for the HCPL-0731#500 is determined by the following critical parameters: 2-channel configuration, 3750Vrms isolation voltage, Darlington output type, 8-SOIC package, 60mA output current per channel, and 18V maximum output voltage. Parts meeting these specifications are classified as direct substitutes regardless of packaging format (Tape & Reel, Tube, or Cut Tape) or RoHS compliance status.

The HCPL0731 from onsemi is classified separately due to parametric differences: reduced isolation voltage (2500Vrms versus 3750Vrms), different current transfer ratio specifications, and different turn-on/turn-off timing characteristics. This part does not meet the isolation voltage requirement and is not a direct substitute.

Parameter Comparison

Parameter	HCPL-0731#500	HCPL-0731-000E	HCPL-0731	HCPL-0731-500E	HCPL0731 (onsemi)
Manufacturer	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited	onsemi
Number of Channels	2	2	2	2	2
Voltage - Isolation	3750Vrms	3750Vrms	3750Vrms	3750Vrms	2500Vrms
Current Transfer Ratio (Min)	500% @ 1.6mA	500% @ 1.6mA	500% @ 1.6mA	500% @ 1.6mA	400% @ 500µA
Current Transfer Ratio (Max)	2600% @ 1.6mA	2600% @ 1.6mA	2600% @ 1.6mA	2600% @ 1.6mA	5000% @ 500µA
Turn On / Turn Off Time (Typ)	5µs, 10µs	5µs, 10µs	5µs, 10µs	5µs, 10µs	300ns, 1.6µs
Output Type	Darlington	Darlington	Darlington	Darlington	Darlington
Voltage - Output (Max)	18V	18V	18V	18V	18V
Current - Output / Channel	60mA	60mA	60mA	60mA	60mA
Voltage - Forward (Vf) (Typ)	1.4V	1.4V	1.4V	1.4V	1.35V
Current - DC Forward (If) (Max)	12mA	12mA	12mA	12mA	20mA
Vce Saturation (Max)	100mV	100mV	100mV	100mV	Not specified
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°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)	8-SOIC (0.154", 3.90mm Width)
Packaging Format	Tape & Reel (TR)	Tube	Tube	Cut Tape (CT) & Digi-Reel®	Tube
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active
Inventory (Pcs)	2134	2136	3168	2059	2629

Engineering Selection Recommendations

HCPL-0731-000E, HCPL-0731, and HCPL-0731-500E are direct functional substitutes for HCPL-0731#500. All three maintain identical electrical specifications including 3750Vrms isolation voltage, 2-channel Darlington output configuration, and 8-SOIC package dimensions. Selection between these parts should be based on packaging format requirements and compliance status.

For applications requiring RoHS3 compliance, HCPL-0731-000E and HCPL-0731-500E are suitable selections. HCPL-0731-000E is available in Tube packaging with 2136 units in stock. HCPL-0731-500E is available in Cut Tape and Digi-Reel format with 2059 units in stock.

For applications without RoHS compliance requirements, HCPL-0731 (Broadcom, Tube packaging, 3168 units in stock) offers the highest inventory availability.

The onsemi HCPL0731 is not a direct substitute due to reduced isolation voltage specification (2500Vrms versus 3750Vrms required). This part is suitable only for applications with lower isolation voltage requirements.

Frequently Asked Questions (FAQ)

Q: Can HCPL-0731-000E replace HCPL-0731#500 in my design?

A: Yes. HCPL-0731-000E is a direct substitute. Both parts share identical electrical specifications: 3750Vrms isolation voltage, 2-channel Darlington output, 60mA per channel output current, and 8-SOIC package. The only difference is packaging format (Tube versus Tape & Reel) and RoHS compliance status (ROHS3 Compliant versus RoHS non-compliant).

Q: What is the difference between HCPL-0731-500E and HCPL-0731-000E?

A: Both are direct substitutes with identical electrical specifications. The difference is packaging format: HCPL-0731-500E uses Cut Tape and Digi-Reel packaging, while HCPL-0731-000E uses Tube packaging. Both are ROHS3 Compliant.

Q: Is the onsemi HCPL0731 compatible with my application?

A: The onsemi HCPL0731 has reduced isolation voltage (2500Vrms versus 3750Vrms). It is compatible only if your application requires 2500Vrms isolation or less. The part also has different current transfer ratio specifications and faster switching times. Verify these parameters against your circuit requirements before substitution.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel, Tube, and Cut Tape formats contain identical die and internal construction. Packaging format affects only handling, storage, and assembly processes. Electrical performance is identical across all packaging formats for the same part number base.

Q: Can I use HCPL-0731-500E in a design specified for HCPL-0731#500?

A: Yes. HCPL-0731-500E is a direct electrical substitute. Both parts meet identical electrical specifications. The difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel) and RoHS compliance (ROHS3 Compliant versus RoHS non-compliant). Verify your assembly process supports the Cut Tape format.

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