ISK2405A Equivalent & Substitute Parts Reference

Part Overview

The ISK2405A from XP Power is an isolated DC-DC converter providing a 5V output at up to 50mA, with an input voltage range of 21.6V to 26.4V and a maximum power output of 250mW. This component is classified as obsolete, requiring engineers to seek alternative parts for maintenance, production continuity, and design-in for new hardware. Selecting appropriate substitutes is essential to maintain electrical and mechanical compatibility within existing applications.

Substiute Parts

ISK2405A

XP PowerIn Stock: 1059ISK2405A Datasheet

Current PartRFQ

PDS1-S24-S5-M-TR

CUI Inc.In Stock: 2340PDS1-S24-S5-M-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for DC-DC converters must match the core electrical and mechanical characteristics. The following parameters are used for validating direct interchangeability:

• Type (Isolated Module)
• Number of Outputs (1)
• Input Voltage Range (21.6V to 26.4V)
• Output Voltage (5V)
• Maximum Output Current (≥50mA)
• Output Power (≥250mW)
• Voltage Isolation (1.5kV)
• Operating Temperature Range (match or exceed)
• Surface Mount Package with similar dimensions and lead configuration
• RoHS and MSL Compliance

Only parts matching these explicit criteria are considered direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The ISK2405A is obsolete and no longer in production. The listed substitute, PDS1-S24-S5-M-TR from CUI Inc., is classified as active, holds matching RoHS compliance, and maintains an MSL rating of 1 (Unlimited). The substitute also carries additional compliance certifications and meets all explicitly listed criteria regarding electrical, mechanical, and regulatory parameters.

Frequently Asked Questions (FAQ)

Q1: What are the primary criteria for selecting a substitute for ISK2405A?
A1: Substitute selection is based strictly on the following parameters: isolated module type, input voltage range of 21.6V to 26.4V, 5V output at minimum 50mA, 250mW or higher power, 1.5kV isolation, similar temperature range, surface mount package with 8-SMD, 5 leads, and matched RoHS/MSL status.

Q2: Is the package and footprint of the PDS1-S24-S5-M-TR identical to the ISK2405A?
A2: Both ISK2405A and PDS1-S24-S5-M-TR use an 8-SMD module package with 5 leads and have identical physical dimensions of 0.50" x 0.33" x 0.29" (12.7mm x 8.3mm x 7.3mm).

Q3: Are the power and current ratings of the substitute compatible?
A3: PDS1-S24-S5-M-TR supports equal or greater output current (200mA vs 50mA) and output power (1W vs 250mW), remaining directly compatible within the allowed parameters.

Q4: Does the substitute meet all compliance and status conditions?
A4: Both the ISK2405A and the PDS1-S24-S5-M-TR are RoHS compliant with MSL 1 (Unlimited). The substitute is listed as active and meets the regulatory requirements provided.

Q5: Is there a difference in applications support or features?
A5: Both DC-DC converters are specified for ITE (Commercial) applications and provide SCP (Short Circuit Protection) features.