PS2581L2-A Equivalent & Substitute Parts Reference

Part Overview

The PS2581L2-A is an optoisolator transistor output device rated for 5000Vrms isolation voltage, suitable for high-voltage isolation applications requiring single-channel signal transmission. The main part (CEL manufacturer) carries a discontinued status at DiGi Electronics, necessitating identification of equivalent substitute components for ongoing design support and procurement. Renesas Electronics Corporation provides parametrically equivalent alternatives that maintain identical electrical and mechanical specifications while offering alternative packaging and availability options.

Substiute Parts

PS2581L2-A

CELIn Stock: 768PS2581L2-A Datasheet

Current PartRFQ

PS2561L-1-A

Renesas Electronics CorporationIn Stock: 2375PS2561L-1-A Datasheet

Parametric EquivalentRFQ

PS2561L-1-V-A

Renesas Electronics CorporationIn Stock: 3273PS2561L-1-V-A Datasheet

Parametric EquivalentRFQ

PS2581L2-A

Renesas Electronics CorporationIn Stock: 8042PS2581L2-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between PS2581L2-A, PS2561L-1-A, and PS2561L-1-V-A is permissible based on the following criteria:

All three parts share identical electrical characteristics: 5000Vrms isolation voltage, single-channel transistor output configuration, 80-400% current transfer ratio at 5mA, 80V maximum output voltage, 50mA maximum output current per channel, and 3µs/5µs rise/fall times. Mechanical compatibility is maintained across all variants: 4-SMD Gull Wing package, surface mount configuration, and identical operating temperature range (-55°C to 100°C).

Compliance and environmental specifications are uniform: ROHS3 compliance, MSL Level 1 (Unlimited), REACH Affected status, and identical ECCN/HTSUS classifications. The substitution relationship is bidirectional and symmetrical—any part in this group may replace another without electrical or mechanical redesign requirements.

Parameter Comparison

Engineering Selection Recommendations

The PS2581L2-A (CEL) is discontinued at DiGi Electronics and designated as discontinued status. PS2561L-1-A and PS2561L-1-V-A are both marked as "Not For New Designs" by Renesas Electronics Corporation. For active production programs and new designs, selection among these three parts should prioritize inventory availability and procurement timeline requirements rather than technical differentiation, as all three components satisfy identical electrical and mechanical criteria.

The choice between Renesas variants (PS2561L-1-A in Tube packaging versus PS2561L-1-V-A in Tube packaging) depends solely on quantity requirements and supply chain logistics. Both Renesas options exceed the original CEL inventory status and provide ROHS3 compliance, MSL Level 1 rating, and REACH compliance matching the main part specification.

Frequently Asked Questions (FAQ)

Q: Can PS2561L-1-A and PS2561L-1-V-A be used interchangeably with PS2581L2-A? A: Yes. All three parts share identical electrical specifications (5000Vrms isolation, 80-400% CTR at 5mA, 50mA output current, 80V output voltage), mechanical configuration (4-SMD Gull Wing surface mount), operating temperature range (-55°C to 100°C), and compliance ratings (ROHS3, MSL Level 1). Direct substitution requires no circuit redesign.

Q: What is the difference between the Renesas PS2561L-1-A and PS2561L-1-V-A variants? A: Both Renesas variants are parametrically identical and share the same electrical and mechanical specifications. Differentiation is based on manufacturer product line designation. Both use identical Tube packaging and offer equivalent performance for isolation applications.

Q: Are there packaging compatibility issues when substituting between these parts? A: No. All three optoisolators use 4-SMD Gull Wing surface mount packages with identical pinout and land pattern. PCB-level integration requires no modification.

Q: What is the inventory status for these substitute parts? A: PS2581L2-A (CEL): 703 Pcs. PS2561L-1-A (Renesas): 2300 Pcs. PS2561L-1-V-A (Renesas): 3256 Pcs. PS2581L2-A (Renesas): 7954 Pcs.

Q: Are these parts compliant with environmental and regulatory requirements? A: All three parts meet ROHS3 compliance, carry MSL Level 1 (Unlimited) moisture sensitivity rating, and maintain REACH Affected designation. ECCN and HTSUS classifications are identical across all variants.