ICPL2531 Equivalent & Substitute Parts

Part Overview

The ICPL2531 is a 2-channel optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This component provides 5000Vrms isolation between input and output circuits, making it suitable for applications requiring high-voltage galvanic isolation. The part is currently active in production with 3746 units in stock. Substitute parts may be required due to supply chain constraints, regional availability, or inventory management considerations.

Key Parameters

Parameter	Value
Number of Channels	2
Voltage - Isolation	5000Vrms
Current Transfer Ratio (Min)	19% @ 16mA
Current Transfer Ratio (Max)	50% @ 16mA
Output Type	Transistor
Voltage - Output (Max)	20V
Current - Output / Channel	8mA
Voltage - Forward (Vf) (Typ)	1.45V
Current - DC Forward (If) (Max)	25mA
Operating Temperature	-40°C ~ 100°C
Package / Case	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the ICPL2531 are qualified based on the following critical parameters:

2-channel configuration with transistor output
5000Vrms isolation voltage
Current transfer ratio range: 19% to 50% @ 16mA
Maximum output voltage of 20V
Output current per channel of 8mA
Forward voltage of 1.45V typical
8-DIP through-hole package (0.300", 7.62mm)
Operating temperature range of -40°C to 100°C
DC input type with active product status

The HCPL2531M and HCPL2531VM from onsemi meet all specified electrical and mechanical parameters and are therefore direct parametric equivalents.

Parameter Comparison

Parameter	ICPL2531	HCPL2531M	HCPL2531VM
Manufacturer	Isocom Components 2004 LTD	onsemi	onsemi
Number of Channels	2	2	2
Voltage - Isolation	5000Vrms	5000Vrms	5000Vrms
Current Transfer Ratio (Min)	19% @ 16mA	19% @ 16mA	19% @ 16mA
Current Transfer Ratio (Max)	50% @ 16mA	50% @ 16mA	50% @ 16mA
Turn On / Turn Off Time (Typ)	350ns, 300ns	250ns, 260ns	250ns, 260ns
Output Type	Transistor	Transistor	Transistor
Voltage - Output (Max)	20V	20V	20V
Current - Output / Channel	8mA	8mA	8mA
Voltage - Forward (Vf) (Typ)	1.45V	1.45V	1.45V
Current - DC Forward (If) (Max)	25mA	25mA	25mA
Operating Temperature	-40°C ~ 100°C	-40°C ~ 100°C	-40°C ~ 100°C
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99

Engineering Selection Recommendations

Both HCPL2531M and HCPL2531VM are active production parts from onsemi with full compliance to ROHS3, REACH Unaffected status, and EAR99 export classification. These parts are direct parametric equivalents to the ICPL2531 across all specified electrical and mechanical parameters. Selection between the ICPL2531 and its onsemi equivalents should be based on availability, lead time, and procurement requirements. The HCPL2531M and HCPL2531VM demonstrate improved turn-on and turn-off timing characteristics (250ns and 260ns respectively) compared to the ICPL2531 (350ns and 300ns), which may provide performance benefits in timing-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can HCPL2531M and HCPL2531VM be used interchangeably with ICPL2531?

A: Yes. Both onsemi parts meet all specified electrical parameters including isolation voltage, current transfer ratio, output voltage, output current, and operating temperature range. They share identical 8-DIP through-hole packaging and are pin-compatible.

Q: What is the difference between HCPL2531M and HCPL2531VM?

A: Both parts are parametric equivalents with identical electrical specifications. The difference lies in packaging designation and moisture sensitivity classification. HCPL2531M carries standard tube packaging, while HCPL2531VM is the variant designation. Both are suitable for through-hole PCB assembly.

Q: Are there any performance differences between ICPL2531 and the onsemi substitutes?

A: The onsemi parts exhibit faster switching characteristics with turn-on/turn-off times of 250ns and 260ns compared to the ICPL2531 at 350ns and 300ns. All other electrical parameters remain identical. This faster switching may be advantageous in high-frequency applications.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. HCPL2531M and HCPL2531VM are ROHS3 compliant, REACH Unaffected, and classified as EAR99, matching the ICPL2531 compliance profile.

Q: Is the 8-DIP package identical across all three parts?

A: Yes. All three parts use the same 8-DIP (0.300", 7.62mm) through-hole package, ensuring mechanical and electrical compatibility on PCBs designed for the ICPL2531.

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