PS2381-1Y-V-L-AX Equivalent & Substitute Parts

Part Overview

The PS2381-1Y-V-L-AX is an optoisolator with transistor output, rated for 5000Vrms isolation voltage. This single-channel device operates in Surface Mount 4-LSOP packaging and is designed for applications requiring galvanic isolation with DC input and transistor output. The original part (CEL manufacturer) is discontinued at DiGi Electronics, creating the need for active alternative sources with identical electrical and mechanical specifications.

Substiute Parts

PS2381-1Y-V-L-AX

CELIn Stock: 1022PS2381-1Y-V-L-AX Datasheet

Current PartRFQ

PS2381-1Y-V-L-AX

Renesas Electronics CorporationIn Stock: 4122PS2381-1Y-V-L-AX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute qualification for the PS2381-1Y-V-L-AX is determined by exact equivalence across the following critical parameters:

• Isolation Voltage: 5000Vrms (non-negotiable for safety-critical isolation requirements)
• Channel Configuration: Single channel (1 CH)
• Output Configuration: Transistor output (determines circuit interface compatibility)
• Current Transfer Ratio Range: 100% minimum to 300% maximum @ 5mA (controls signal transmission efficiency)
• Output Voltage Rating: 80V maximum (defines safe operating voltage ceiling)
• Output Current Capability: 50mA per channel (establishes load-driving capacity)
• Saturation Voltage: 300mV maximum (affects low-side switching performance)
• Switching Response: 4µs rise time, 5µs fall time (determines maximum switching frequency)
• Temperature Operating Range: -40°C to 115°C (environmental operating envelope)
• Packaging: 4-LSOP (2.54mm) Surface Mount, Gull Wing (ensures PCB compatibility and assembly requirements)
• Compliance: ROHS3 Compliant, MSL Level 1 (manufacturing and environmental standards)

The PS2381-1Y-V-L-AX from Renesas Electronics Corporation meets all specified parameters and qualifies as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The Renesas Electronics Corporation PS2381-1Y-V-L-AX is the direct equivalent for the discontinued CEL PS2381-1Y-V-L-AX. Selection criteria are as follows:

Availability: The Renesas part maintains active product status with 4014 units in stock, compared to the original CEL source which is discontinued. This ensures long-term supply chain viability for new designs and production runs.

Compliance Alignment: Both variants maintain ROHS3 compliance and MSL Level 1 rating, satisfying regulatory and manufacturing environment requirements without additional qualification steps.

Electrical Equivalence: Parameter-for-parameter matching across isolation voltage, current transfer ratios, output ratings, switching response, and temperature operating range confirms direct functional interchangeability in circuit applications.

Packaging Compatibility: Identical 4-LSOP (2.54mm) Surface Mount Gull Wing packaging ensures drop-in replacement capability without PCB redesign or assembly process modification.

Frequently Asked Questions (FAQ)

Q: Can the Renesas PS2381-1Y-V-L-AX be used as a direct replacement for the discontinued CEL part?

A: Yes. The Renesas variant is a parametric equivalent with matching electrical and mechanical specifications across all critical parameters. No circuit modifications are required for substitution.

Q: Are there any compliance or certification differences between the two parts?

A: No. Both parts carry identical ROHS3 compliance status and MSL Level 1 ratings. REACH and ECCN classifications are unaffected across both variants.

Q: Does the 4-LSOP (2.54mm) package apply to both parts?

A: Yes. Both the CEL and Renesas versions use the same 4-LSOP (2.54mm) Surface Mount package with Gull Wing lead configuration. Direct PCB compatibility is confirmed.

Q: What are the isolation voltage implications for this optoisolator?

A: The 5000Vrms isolation rating defines the maximum voltage differential the part can sustain between input and output sides while maintaining circuit isolation. This parameter cannot be compromised in substitution; both parts are rated identically.

Q: Is the current transfer ratio specification critical for circuit design?

A: Yes. The 100% minimum to 300% maximum CTR range @ 5mA establishes input-to-output signal transmission characteristics. Both parts match this specification exactly, ensuring consistent circuit performance.

Q: What switching speed considerations apply to this device?

A: Rise time of 4µs and fall time of 5µs define the maximum switching frequency and timing precision the part supports. Both variants are identical, confirming equivalent frequency response in applications.

Q: Are moisture sensitivity or handling differences present between parts?

A: No. Both parts carry MSL Level 1 (Unlimited) classification, indicating no special moisture-sensitive handling precautions are required during storage or assembly.