PS2503L-1-F3-A Equivalent & Substitute Parts

Part Overview

The PS2503L-1-F3-A is an optoisolator with transistor output, rated for 5000Vrms isolation voltage, housed in a 4-SMD gull wing surface mount package. This component is classified as discontinued at DiGi Electronics, necessitating evaluation of equivalent substitute parts for new designs and existing stock management. The NEPOC series optoisolators provide galvanic isolation suitable for high-voltage switching and signal conditioning applications requiring single-channel isolation.

Substiute Parts

PS2503L-1-F3-A

CELIn Stock: 1721PS2503L-1-F3-A Datasheet

Current PartRFQ

PS2503L-1-L-A

Renesas Electronics CorporationIn Stock: 1142PS2503L-1-L-A Datasheet

SimilarRFQ

PS2503L-1-F3-A

Renesas Electronics CorporationIn Stock: 1711PS2503L-1-F3-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PS2503L-1-F3-A are identified through strict parametric compatibility. The following parameters determine substitutability:

Critical Parameters (Must Match):

• Single-channel configuration
• 5000Vrms isolation voltage
• Transistor output type
• 4-SMD, Gull Wing package
• Surface mount mounting type
• 30mA maximum output current per channel
• 40V maximum output voltage
• 250mV maximum Vce saturation
• Operating temperature range -55°C to 100°C
• RoHS3 compliance
• MSL rating of 1

Variable Parameters (Within Acceptable Range):

• Current Transfer Ratio: Minimum range 100–150%, Maximum range 300–400% at 1mA
• Rise/Fall Time: 20µs rise, 30µs fall (consistent across all variants)
• Packaging format: Tube or Tape & Reel configurations

Parameter Comparison

Engineering Selection Recommendations

PS2503L-1-L-A (Renesas, Active Status): This part represents the primary substitute for new designs. It carries Active product status from Renesas Electronics Corporation and maintains full parametric compatibility with the original PS2503L-1-F3-A. The Current Transfer Ratio minimum is elevated to 150%, providing enhanced isolation performance within the acceptable range. Packaging in Tube format accommodates standard component handling workflows. RoHS3 and unlimited MSL certification support compliance requirements.

PS2503L-1-F3-A (Renesas, Parametric Equivalent): This variant, manufactured by Renesas Electronics Corporation, offers identical electrical specifications to the original CEL part but carries a "Not For New Designs" status. The Tape & Reel packaging format suits high-volume manufacturing environments. This configuration remains suitable for design continuity in existing applications, though the active PS2503L-1-L-A variant is preferred for new development.

Frequently Asked Questions (FAQ)

What makes PS2503L-1-L-A a direct substitute for PS2503L-1-F3-A?

Both parts satisfy all critical substitution parameters: identical channel count, isolation voltage, output configuration, saturation characteristics, temperature range, and package specification. The only difference is packaging format (Tube vs. standard), which does not affect electrical performance or circuit compatibility.

How do Current Transfer Ratio variations affect circuit design?

The PS2503L-1-L-A specifies a minimum Current Transfer Ratio of 150% versus the original 100%, ensuring higher optical coupling efficiency at the same input current. This variation falls within acceptable design margins for single-channel isolation applications and represents an improvement in signal transmission reliability. Maximum ratios (300% and 400%) define the upper bound for output current estimation.

Why is the PS2503L-1-L-A preferred over the parametric equivalent?

The PS2503L-1-L-A carries Active product status, indicating ongoing manufacturer support and continued availability. The parametric equivalent PS2503L-1-F3-A from Renesas is marked "Not For New Designs," limiting its suitability for future applications despite technical equivalence.

Are packaging format differences significant for PCB assembly?

Tube and Tape & Reel formats differ in handling and feeding methods but produce identical component specifications. Selection depends on manufacturing process requirements. Tube packaging suits manual assembly, while Tape & Reel is optimized for automated pick-and-place equipment.

What compliance certifications apply to substitute parts?

Both Renesas variants maintain ROHS3 compliance and unlimited MSL rating (1), matching the original CEL specification. RoHS compliance ensures compliance with hazardous substance restrictions. The MSL rating indicates no moisture sensitivity limitation, allowing unrestricted storage conditions.