HCPL-4502#300 Equivalent & Substitute Parts

Part Overview

The HCPL-4502#300 is a 3750Vrms optoisolator with transistor output, single channel configuration in 8-DIP Gull Wing surface mount package. This component is discontinued at DiGi Electronics. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications.

Key Parameters

Parameter	Value
Manufacturer	Broadcom Limited
Category	Optoisolators
Number of Channels	1
Voltage - Isolation	3750Vrms
Current Transfer Ratio (Min)	19% @ 16mA
Current Transfer Ratio (Max)	50% @ 16mA
Turn On / Turn Off Time (Typ)	200ns, 600ns
Input Type	DC
Output Type	Transistor
Voltage - Output (Max)	20V
Current - Output / Channel	8mA
Voltage - Forward (Vf) (Typ)	1.5V
Current - DC Forward (If) (Max)	25mA
Operating Temperature	-55°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	8-SMD, Gull Wing
Supplier Device Package	8-DIP Gull Wing
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN	EAR99
HTSUS	8541.49.8000

Substitute Part Grouping Explanation

Substitute parts for the HCPL-4502#300 are classified based on electrical and mechanical parameter equivalence. All substitute parts maintain identical specifications across the following critical parameters:

Voltage - Isolation: 3750Vrms
Number of Channels: 1
Current Transfer Ratio: 19% (Min) @ 16mA, 50% (Max) @ 16mA
Turn On / Turn Off Time: 200ns, 600ns (Typ)
Input Type: DC
Output Type: Transistor
Voltage - Output (Max): 20V
Current - Output / Channel: 8mA
Voltage - Forward (Vf) (Typ): 1.5V
Current - DC Forward (If) (Max): 25mA
Operating Temperature: -55°C ~ 100°C
Package / Case: 8-SMD, Gull Wing
Supplier Device Package: 8-DIP Gull Wing
Moisture Sensitivity Level (MSL): 1 (Unlimited)
ECCN: EAR99
HTSUS: 8541.49.8000

Substitutes are grouped into two categories: Direct Manufacturer Equivalents and Parametric Equivalents. Direct equivalents share identical part number bases with packaging variants. Parametric equivalents maintain all electrical and mechanical specifications while differing in base product number designation.

Parameter Comparison

Part Number	Manufacturer	Voltage - Isolation	Current Transfer Ratio (Min)	Current Transfer Ratio (Max)	Turn On / Turn Off Time	Output Type	Voltage - Output (Max)	Current - Output / Channel	Operating Temperature	Package / Case	Product Status	RoHS Status	Inventory
HCPL-4502#300	Broadcom Limited	3750Vrms	19% @ 16mA	50% @ 16mA	200ns, 600ns	Transistor	20V	8mA	-55°C ~ 100°C	8-SMD, Gull Wing	Discontinued	RoHS non-compliant	986 Pcs
HCPL-4502-300E	Broadcom Limited	3750Vrms	19% @ 16mA	50% @ 16mA	200ns, 600ns	Transistor	20V	8mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active	ROHS3 Compliant	694 Pcs
HCPL-4502-320E	Broadcom Limited	3750Vrms	19% @ 16mA	50% @ 16mA	200ns, 600ns	Transistor	20V	8mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active	ROHS3 Compliant	5900 Pcs
HCPL-4503#300	Broadcom Limited	3750Vrms	19% @ 16mA	50% @ 16mA	200ns, 600ns	Transistor	20V	8mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active	RoHS non-compliant	888 Pcs
HCPL-4503#360	Broadcom Limited	3750Vrms	19% @ 16mA	50% @ 16mA	200ns, 600ns	Transistor	20V	8mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active	RoHS non-compliant	825 Pcs
HCPL-4503-300E	Broadcom Limited	3750Vrms	19% @ 16mA	50% @ 16mA	200ns, 600ns	Transistor	20V	8mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active	ROHS3 Compliant	4217 Pcs
HCPL-4503-360E	Broadcom Limited	3750Vrms	19% @ 16mA	50% @ 16mA	200ns, 600ns	Transistor	20V	8mA	-55°C ~ 100°C	8-SMD, Gull Wing	Active	ROHS3 Compliant	878 Pcs

Engineering Selection Recommendations

All substitute parts listed maintain complete electrical and mechanical compatibility with the HCPL-4502#300. Selection should prioritize product status and regulatory compliance.

HCPL-4502-300E and HCPL-4502-320E are direct base product equivalents with ROHS3 compliance and active product status. HCPL-4502-300E maintains identical packaging designation, while HCPL-4502-320E offers higher inventory availability.

HCPL-4503-300E and HCPL-4503-360E are parametric equivalents with ROHS3 compliance and active product status. HCPL-4503-300E provides the highest inventory level at 4217 pieces. Both HCPL-4503#300 and HCPL-4503#360 are active alternatives with RoHS non-compliant status.

For applications requiring regulatory compliance, ROHS3 compliant variants (HCPL-4502-300E, HCPL-4502-320E, HCPL-4503-300E, HCPL-4503-360E) are appropriate selections. For legacy system maintenance where RoHS compliance is not required, HCPL-4503#300 and HCPL-4503#360 remain available.

Frequently Asked Questions (FAQ)

Q: Can HCPL-4503 series parts directly replace HCPL-4502 series parts?

A: Yes. HCPL-4503#300, HCPL-4503#360, HCPL-4503-300E, and HCPL-4503-360E are parametric equivalents that maintain all electrical and mechanical specifications required for direct substitution in applications using HCPL-4502#300.

Q: What is the difference between HCPL-4502-300E and HCPL-4502-320E?

A: Both parts are direct equivalents of HCPL-4502#300 with identical electrical specifications and ROHS3 compliance. The suffix designation (-300E vs -320E) indicates packaging or manufacturing variants. Electrical performance and pin configuration remain identical.

Q: Are there RoHS compliance differences among the substitute parts?

A: Yes. HCPL-4502-300E, HCPL-4502-320E, HCPL-4503-300E, and HCPL-4503-360E are ROHS3 compliant. HCPL-4503#300 and HCPL-4503#360 are RoHS non-compliant. Selection depends on regulatory requirements for the application.

Q: Which substitute part has the best inventory availability?

A: HCPL-4502-320E offers 5900 pieces in stock, followed by HCPL-4503-300E with 4217 pieces.

Q: Are all substitute parts in the same package configuration?

A: Yes. All substitute parts use 8-SMD, Gull Wing package with 8-DIP Gull Wing supplier device package, maintaining identical PCB footprint and mounting requirements.

Q: Can I use these parts interchangeably in my existing design?

A: All listed substitute parts maintain identical electrical parameters, operating temperature range, isolation voltage, current transfer ratio, and output characteristics. Pin configuration and package footprint are identical, enabling direct substitution without design modification.

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