HCNW4502 Optoisolator Equivalent & Substitute Parts

Part Overview

The HCNW4502 is a high-voltage optoisolator with transistor output manufactured by Broadcom Limited. This 5000Vrms isolation-rated component operates as a single-channel optoisolator in an 8-DIP through-hole package. The part is currently active in production with 4066 units in stock. Equivalent and substitute parts are identified based on matching electrical isolation ratings, channel configuration, output characteristics, and physical packaging specifications.

Key Parameters

Parameter	Value
Voltage - Isolation	5000Vrms
Number of Channels	1
Output Type	Transistor
Current Transfer Ratio (Min)	15% @ 16mA
Voltage - Output (Max)	20V
Current - Output / Channel	8mA
Voltage - Forward (Vf) (Typ)	1.68V
Current - DC Forward (If) (Max)	25mA
Operating Temperature	-55°C ~ 85°C
Package / Case	8-DIP (0.400", 10.16mm)
Mounting Type	Through Hole
Turn On / Turn Off Time (Typ)	1µs, 1µs (Max)

Substitute Part Grouping Explanation

Substitution of the HCNW4502 is determined by strict equivalence across the following critical parameters:

Voltage isolation rating: 5000Vrms
Single-channel configuration
Transistor output topology
Current transfer ratio minimum: 15% @ 16mA
Maximum output voltage: 20V
Output current per channel: 8mA
Input/output forward voltage characteristics
Operating temperature range: -55°C to 85°C
8-DIP through-hole package format (0.400", 10.16mm)

All identified substitute parts maintain these electrical and mechanical specifications. Differences in RoHS compliance status and packaging designation do not affect functional equivalence for circuit-level substitution.

Parameter Comparison

Parameter	HCNW4502	HCNW4502-000E	HCNW4503	HCNW4503-000E
Manufacturer	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited
Voltage - Isolation	5000Vrms	5000Vrms	5000Vrms	5000Vrms
Number of Channels	1	1	1	1
Output Type	Transistor	Transistor	Transistor	Transistor
Current Transfer Ratio (Min)	15% @ 16mA	15% @ 16mA	15% @ 16mA	15% @ 16mA
Voltage - Output (Max)	20V	20V	20V	20V
Current - Output / Channel	8mA	8mA	8mA	8mA
Voltage - Forward (Vf) (Typ)	1.68V	1.68V	1.68V	1.68V
Current - DC Forward (If) (Max)	25mA	25mA	25mA	25mA
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 85°C
Package / Case	8-DIP (0.400", 10.16mm)	8-DIP (0.400", 10.16mm)	8-DIP (0.400", 10.16mm)	8-DIP (0.400", 10.16mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Turn On / Turn Off Time (Typ)	1µs, 1µs (Max)	1µs, 1µs (Max)	1µs, 1µs (Max)	1µs, 1µs (Max)
Product Status	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant
Inventory (Pcs)	4066	1484	1619	15878

Engineering Selection Recommendations

All four part numbers—HCNW4502, HCNW4502-000E, HCNW4503, and HCNW4503-000E—are functionally equivalent for circuit-level substitution based on electrical and mechanical parameters.

For applications requiring RoHS3 compliance, HCNW4502-000E and HCNW4503-000E are the appropriate selections. Both parts carry ROHS3 Compliant status and maintain identical electrical specifications to the base HCNW4502.

For applications without RoHS compliance requirements, HCNW4502 and HCNW4503 remain valid selections. The HCNW4503-000E variant offers the highest current inventory level (15878 units), providing supply chain flexibility.

All parts carry Active product status, REACH Unaffected designation, and identical ECCN and HTSUS classifications, confirming regulatory equivalence.

Frequently Asked Questions (FAQ)

Q: Can HCNW4502-000E be used as a direct replacement for HCNW4502?

A: Yes. Both parts are electrically and mechanically identical. The primary difference is RoHS3 compliance status in the -000E variant. Pin configuration, isolation voltage, output characteristics, and package format are identical.

Q: What is the difference between HCNW4502 and HCNW4503 series?

A: Both series maintain identical electrical specifications and package format. The HCNW4503 variants are functionally equivalent substitutes for HCNW4502 applications based on all provided parameters.

Q: Are the -000E variants suitable for high-reliability applications?

A: The -000E variants carry ROHS3 Compliant status, which indicates compliance with RoHS3 environmental standards. Selection should be based on application-specific compliance requirements and supply chain availability.

Q: Does the 8-DIP package format remain consistent across all substitute parts?

A: Yes. All four part numbers use the 8-DIP (0.400", 10.16mm) through-hole package. PCB footprints and mounting procedures are identical across all variants.

Q: What inventory considerations apply to part selection?

A: HCNW4503-000E offers the highest stock level at 15878 units. HCNW4502 maintains 4066 units. Selection may be influenced by supply chain lead times and project delivery schedules.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message