HCPL4502SDV Equivalent & Substitute Parts

Part Overview

The HCPL4502SDV is an optoisolator transistor with base output manufactured by onsemi, providing 2500Vrms isolation in a single-channel 8-SMD surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The HCPL4502SDV serves applications requiring galvanic isolation with transistor output capability and integrated base connection for enhanced switching control.

Key Parameters

Parameter	Value
Manufacturer Part Number	HCPL4502SDV
Manufacturer	onsemi
Category	Optoisolators
Product Status	Obsolete
Number of Channels	1
Voltage - Isolation	2500Vrms
Current Transfer Ratio (Min)	19% @ 16mA
Current Transfer Ratio (Max)	50% @ 16mA
Turn On / Turn Off Time (Typ)	450ns, 300ns
Output Type	Transistor with Base
Voltage - Output (Max)	20V
Current - Output / Channel	8mA
Voltage - Forward (Vf) (Typ)	1.45V
Current - DC Forward (If) (Max)	25mA
Operating Temperature	-55°C ~ 100°C
Mounting Type	Surface Mount
Package / Case	8-SMD, Gull Wing
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the HCPL4502SDV is determined by the following critical parameters:

Isolation Voltage: Minimum 2500Vrms required; higher isolation ratings are acceptable
Output Type: Must be Transistor with Base or compatible Transistor output
Number of Channels: Single channel only
Package / Case: 8-SMD, Gull Wing form factor
Mounting Type: Surface Mount
Current Transfer Ratio: Minimum 19% @ 16mA
Output Current: 8mA per channel
Maximum Output Voltage: 20V
Input Type: DC

Substitute parts are grouped into two categories based on isolation voltage rating and output configuration:

Group 1 - Enhanced Isolation (5000Vrms): HCPL4503SDVM, HCPL-4562-520E provide higher isolation voltage while maintaining transistor with base output and compatible electrical characteristics.

Group 2 - Intermediate Isolation (3750Vrms): HCPL-4504#300, HCPL-4562-300E, HCPL-4562-500E, HCPL-J454-400E, HCPL-J454-600E provide 3750Vrms isolation, which exceeds the minimum 2500Vrms requirement while offering active product status and improved compliance certifications.

Parameter Comparison

Parameter	HCPL4502SDV	HCPL4503SDVM	HCPL-4504#300	HCPL-4562-300E	HCPL-4562-500E	HCPL-4562-520E	HCPL-J454-400E	HCPL-J454-600E
Voltage - Isolation	2500Vrms	5000Vrms	3750Vrms	3750Vrms	3750Vrms	5000Vrms	3750Vrms	3750Vrms
Number of Channels	1	1	1	1	1	1	1	1
Output Type	Transistor with Base	Transistor with Base	Transistor	Transistor with Base	Transistor with Base	Transistor with Base	Transistor	Transistor
Voltage - Output (Max)	20V	20V	20V	20V	20V	20V	20V	20V
Current - Output / Channel	8mA	8mA	8mA	8mA	8mA	8mA	8mA	8mA
Voltage - Forward (Vf) (Typ)	1.45V	1.45V	1.5V	1.3V	1.3V	1.3V	1.59V	1.59V
Current - DC Forward (If) (Max)	25mA	25mA	25mA	12mA	12mA	12mA	25mA	25mA
Operating Temperature	-55°C ~ 100°C	-40°C ~ 100°C	-55°C ~ 100°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 100°C	-55°C ~ 100°C
Package / Case	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing	8-SMD, Gull Wing
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement with Enhanced Isolation: HCPL4503SDVM is the primary substitute when higher isolation voltage is acceptable. This part maintains transistor with base output configuration, identical current transfer ratio range (19%-50% @ 16mA), and active product status with ROHS3 compliance. Operating temperature range is reduced to -40°C ~ 100°C.

For Active Product Status with Intermediate Isolation: HCPL-4562-520E (5000Vrms) or HCPL-4562-300E/500E (3750Vrms) provide active product status and ROHS3 compliance. These Broadcom Limited parts maintain transistor with base output and 8-SMD package compatibility. Forward voltage is reduced to 1.3V typical, and maximum forward current is 12mA. Operating temperature range is -40°C ~ 85°C.

For Transistor Output Without Base Connection: HCPL-4504#300, HCPL-J454-400E, and HCPL-J454-600E provide 3750Vrms isolation with transistor output (without integrated base). These are suitable only if circuit design does not require base connection control. HCPL-J454 variants offer current transfer ratio up to 60% @ 16mA and extended operating temperature to -55°C ~ 100°C.

Compliance Considerations: Parts with ROHS3 compliance (HCPL4503SDVM, HCPL-4562 series, HCPL-J454 series) are preferred for new designs. HCPL-4504#300 is RoHS non-compliant and should be avoided in applications requiring RoHS certification.

Frequently Asked Questions (FAQ)

Q: Can HCPL4503SDVM directly replace HCPL4502SDV? A: Yes. HCPL4503SDVM maintains the same output type (transistor with base), package (8-SMD, Gull Wing), current transfer ratio range (19%-50% @ 16mA), and output specifications (20V max, 8mA per channel). The isolation voltage is increased to 5000Vrms. Operating temperature range is reduced from -55°C ~ 100°C to -40°C ~ 100°C.

Q: What is the difference between parts with "Transistor with Base" and "Transistor" output? A: Transistor with Base output (HCPL4502SDV, HCPL4503SDVM, HCPL-4562 series) provides an accessible base connection for external base drive control, enabling enhanced switching characteristics. Transistor output only (HCPL-4504#300, HCPL-J454 series) does not provide base access. Circuit compatibility depends on whether base control is required.

Q: Are HCPL-4562 series parts suitable substitutes? A: HCPL-4562-520E (5000Vrms) and HCPL-4562-300E/500E (3750Vrms) are suitable substitutes with transistor with base output. However, forward voltage is reduced to 1.3V typical (versus 1.45V), and maximum forward current is 12mA (versus 25mA). Operating temperature range is narrower (-40°C ~ 85°C). These parts are active and ROHS3 compliant.

Q: What is the minimum isolation voltage required for substitution? A: The HCPL4502SDV requires 2500Vrms minimum isolation. All listed substitutes meet or exceed this requirement. Higher isolation ratings (3750Vrms or 5000Vrms) are acceptable and provide additional safety margin.

Q: Can I use HCPL-4504#300 or HCPL-J454 series as substitutes? A: These parts are compatible only if your circuit does not require base connection control. They provide 3750Vrms isolation, 8-SMD package, and 8mA output current. HCPL-4504#300 is RoHS non-compliant. HCPL-J454 variants offer higher current transfer ratio (up to 60% @ 16mA) and extended temperature range (-55°C ~ 100°C).

Q: Which substitute offers the best compliance profile? A: HCPL4503SDVM, HCPL-4562-520E, HCPL-4562-300E, HCPL-4562-500E, HCPL-J454-400E, and HCPL-J454-600E all carry ROHS3 compliance. HCPL-4504#300 is RoHS non-compliant and should be avoided in regulated applications.

Q: Are packaging options different between substitutes? A: All substitutes use 8-SMD, Gull Wing surface mount package. Packaging formats vary (Tape & Reel, Tube, Cut Tape) but do not affect electrical compatibility. Verify packaging availability with your supplier for production requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message