PS2501L-1-H-A Equivalent & Substitute Parts

Part Overview

The PS2501L-1-H-A is an optoisolator with transistor output, rated for 5000Vrms isolation voltage in a 4-SMD surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives for ongoing production and maintenance applications. Equivalent optoisolators meeting the same electrical and mechanical specifications remain available from active manufacturers.

Substiute Parts

PS2501L-1-H-A

CELIn Stock: 1362PS2501L-1-H-A Datasheet

Current PartRFQ

PS2581L2-H-A

Renesas Electronics CorporationIn Stock: 818PS2581L2-H-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

PS2581L2-H-A qualifies as a parametric equivalent to PS2501L-1-H-A based on matching specifications across all critical substitution criteria:

Electrical Parameters: Isolation voltage (5000Vrms), current transfer ratio range (80-160% @ 5mA), maximum output voltage (80V), maximum output current (50mA), and saturation voltage (300mV) are identical. Input type (DC) and output type (Transistor) match exactly.

Mechanical Parameters: Package type (4-SMD, Gull Wing), mounting configuration (Surface Mount), and form factor are identical.

Environmental & Compliance Parameters: Operating temperature range (-55°C ~ 100°C), RoHS3 compliance, and moisture sensitivity level (MSL 1) are identical.

Timing Characteristics: Rise and fall time specifications (3µs, 5µs) are identical.

Parameter Comparison

Engineering Selection Recommendations

PS2581L2-H-A is an active-status equivalent suitable for direct replacement of PS2501L-1-H-A in new production and existing designs. Both parts maintain identical RoHS3 compliance and REACH-affected status, ensuring regulatory compatibility. The active product status of PS2581L2-H-A provides availability advantages for ongoing procurement compared to the discontinued PS2501L-1-H-A. Current inventory availability for PS2581L2-H-A (752 pcs) supports component replenishment. No electrical, mechanical, or environmental derating is required when substituting PS2581L2-H-A for PS2501L-1-H-A.

Frequently Asked Questions (FAQ)

Q: Can PS2581L2-H-A directly replace PS2501L-1-H-A in existing PCB designs? A: Yes. PS2581L2-H-A is a parametric equivalent with identical electrical specifications, output ratings, isolation voltage, and 4-SMD Gull Wing package configuration. No circuit modifications are required.

Q: Are there differences in operating temperature capabilities between these parts? A: No. Both parts operate over the identical temperature range of -55°C to 100°C, with matching moisture sensitivity specifications.

Q: Does the change in manufacturer from CEL to Renesas affect compliance? A: No. Both parts maintain identical RoHS3 compliance and REACH-affected status, with matching Moisture Sensitivity Level ratings.

Q: What are the key parameters that define compatibility between these optoisolators? A: The critical matching parameters are: 5000Vrms isolation voltage, 80-160% current transfer ratio range, 80V maximum output voltage, 50mA output current per channel, 300mV maximum saturation voltage, transistor output configuration, and 4-SMD surface mount package.

Q: Is packaging different between the main part and substitute? A: The physical package is identical (4-SMD, Gull Wing). The main difference is packaging format: PS2501L-1-H-A was offered in standard packaging, while PS2581L2-H-A is available in tube packaging. This does not affect component electrical or mechanical performance.