PS2501L-1-H-A Equivalent & Substitute Parts

Part Overview

The PS2501L-1-H-A is an optoisolator with transistor output manufactured by Renesas Electronics Corporation. This component provides galvanic isolation up to 5000Vrms with a single channel configuration, designed for DC input applications requiring reliable signal isolation in industrial and consumer electronics. The part is currently in active production status with 1298 units available in stock. Substitute parts are identified when equivalent electrical performance, isolation ratings, and mechanical compatibility are maintained across the NEPOC series.

Substiute Parts

PS2501L-1-H-A
Renesas Electronics CorporationIn Stock: 1392PS2501L-1-H-A Datasheet
PS2501L-1-H-A
Current Part
PS2581L2-H-A
Renesas Electronics CorporationIn Stock: 818PS2581L2-H-A Datasheet
PS2581L2-H-A
Parametric Equivalent

Key Parameters

Parameter Value
Manufacturer Part Number PS2501L-1-H-A
Manufacturer Renesas Electronics Corporation
Category Optoisolators
Series NEPOC
Number of Channels 1
Voltage - Isolation 5000Vrms
Current Transfer Ratio (Min) 80% @ 5mA
Current Transfer Ratio (Max) 160% @ 5mA
Rise / Fall Time (Typ) 3µs, 5µs
Input Type DC
Output Type Transistor
Voltage - Output (Max) 80V
Current - Output / Channel 50mA
Voltage - Forward (Vf) (Typ) 1.17V
Current - DC Forward (If) (Max) 80mA
Vce Saturation (Max) 300mV
Operating Temperature -55°C ~ 100°C
Mounting Type Surface Mount
Package / Case 4-SMD, Gull Wing
Product Status Active
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Substitute Part Grouping Explanation

The PS2581L2-H-A qualifies as a parametric equivalent to the PS2501L-1-H-A based on the following critical substitution criteria:

Electrical Parameters (Must Match):

  • Voltage - Isolation: 5000Vrms
  • Number of Channels: 1
  • Current Transfer Ratio: 80% - 160% @ 5mA
  • Rise / Fall Time: 3µs, 5µs
  • Output Type: Transistor
  • Voltage - Output (Max): 80V
  • Current - Output / Channel: 50mA
  • Vce Saturation (Max): 300mV
  • Operating Temperature Range: -55°C ~ 100°C

Mechanical Parameters (Must Match):

  • Mounting Type: Surface Mount
  • Package / Case: 4-SMD, Gull Wing
  • Input Type: DC

Compliance & Status (Must Match):

  • Series: NEPOC
  • Product Status: Active
  • RoHS Status: ROHS3 Compliant
  • Moisture Sensitivity Level: 1 (Unlimited)

All parameters are identical between the main part and substitute, confirming direct functional equivalence within the NEPOC optoisolator family.

Parameter Comparison

Parameter PS2501L-1-H-A PS2581L2-H-A
Manufacturer Renesas Electronics Corporation Renesas Electronics Corporation
Series NEPOC NEPOC
Number of Channels 1 1
Voltage - Isolation 5000Vrms 5000Vrms
Current Transfer Ratio (Min) 80% @ 5mA 80% @ 5mA
Current Transfer Ratio (Max) 160% @ 5mA 160% @ 5mA
Rise / Fall Time (Typ) 3µs, 5µs 3µs, 5µs
Input Type DC DC
Output Type Transistor Transistor
Voltage - Output (Max) 80V 80V
Current - Output / Channel 50mA 50mA
Voltage - Forward (Vf) (Typ) 1.17V 1.17V
Current - DC Forward (If) (Max) 80mA 80mA
Vce Saturation (Max) 300mV 300mV
Operating Temperature -55°C ~ 100°C -55°C ~ 100°C
Mounting Type Surface Mount Surface Mount
Package / Case 4-SMD, Gull Wing 4-SMD, Gull Wing
Product Status Active Active
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)

Engineering Selection Recommendations

Both the PS2501L-1-H-A and PS2581L2-H-A are active production components from Renesas Electronics Corporation with identical electrical and mechanical specifications. Selection between these parts may be based on:

Availability: PS2501L-1-H-A has 1298 units in stock; PS2581L2-H-A has 752 units in stock.

Packaging: PS2501L-1-H-A is supplied in standard packaging; PS2581L2-H-A is supplied in tube packaging.

Compliance: Both parts maintain ROHS3 compliance, REACH affected status, and identical moisture sensitivity ratings, making either suitable for regulated applications.

Supply Chain Considerations: Both parts share the same base product family (PS2501 and PS2581 respectively) within the NEPOC series, ensuring consistent quality and performance standards.

Frequently Asked Questions (FAQ)

Q: Can PS2581L2-H-A directly replace PS2501L-1-H-A in existing designs?

A: Yes. All electrical parameters, isolation ratings, output characteristics, and mechanical dimensions are identical. No circuit modifications are required.

Q: Are there differences in isolation voltage or current transfer ratio between these parts?

A: No. Both parts provide 5000Vrms isolation with current transfer ratios of 80% to 160% @ 5mA. Output current capability and saturation voltage are identical.

Q: What is the difference between the two part numbers?

A: The primary difference is packaging format. PS2501L-1-H-A uses standard packaging while PS2581L2-H-A uses tube packaging. The base product numbers (PS2501 vs PS2581) indicate different product lines within the NEPOC series, but electrical performance is equivalent.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both parts operate across the -55°C to 100°C temperature range with identical performance specifications.

Q: Do both parts meet RoHS and REACH requirements?

A: Yes. Both PS2501L-1-H-A and PS2581L2-H-A are ROHS3 compliant and REACH affected, meeting current regulatory standards.

Q: What is the moisture sensitivity level for these optoisolators?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

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