ISK0503A Equivalent & Substitute Parts Reference

Part Overview

The XP Power ISK0503A is an isolated module DC-DC converter featuring a single 3.3V output, 76mA maximum output current, and 250mW power rating. It operates with an input voltage range of 4.5V to 5.5V, offers 1.5kV isolation, and is supplied in an 8-SMD Module, 5 Leads package. The ISK0503A is classified as Obsolete, making identification of equivalent or substitute parts necessary for ongoing projects and replacement inventory.

Substiute Parts

ISK0503A

XP PowerIn Stock: 1025ISK0503A Datasheet

Current PartRFQ

IES0105S03

XP PowerIn Stock: 764IES0105S03 Datasheet

MFR RecommendedRFQ

IES0105S3V3

XP PowerIn Stock: 738IES0105S3V3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

All listed substitute parts share critical parameters with ISK0503A: isolated module type, 1 output, identical input voltage range (4.5V–5.5V), output voltage (3.3V), voltage isolation (1.5kV), surface mount packaging, package/case type (8-SMD Module, 5 Leads), and comparable operating temperature range (-40°C ~ 105°C). Direct substitutes must meet or exceed the required performance and compliance specifications.

Key allowed substitution parameters are:

• Type (Isolated Module)
• Number of Outputs
• Input Voltage Range
• Output Voltage
• Mounting Type
• Package / Case
• Voltage Isolation
• Operating Temperature Range
• RoHS Compliance

Parameter Comparison

Engineering Selection Recommendations

Substitute parts IES0105S03 and IES0105S3V3 maintain active product status and feature comparable environmental, mechanical, and electrical compliance, including ROHS3 status. Both offer surface mount configuration and equivalent package/case, aligning with legacy ISK0503A application requirements. Certifications for IES0105S03 and IES0105S3V3 include agency approvals as specified in the input.

Frequently Asked Questions (FAQ)

Q1: What determines compatibility between ISK0503A and substitute DC-DC modules?
A1: Compatibility is determined by matching electrical specifications (input/output voltage, isolation), mechanical configuration (package, size), and operational limits (temperature, mounting type).

Q2: Are substitute parts suitable for the same applications as ISK0503A?
A2: Substitute models listed are specified for ITE (Commercial) usage, matching the application category of ISK0503A according to supplied parameters.

Q3: Will the substitute parts fit existing PCB footprints for ISK0503A?
A3: Substitute parts use the same 8-SMD Module, 5 Leads package and similar physical dimensions as ISK0503A, supporting drop-in compatibility based on provided package and size data.

Q4: How do RoHS and compliance statuses compare between the parts?
A4: All parts listed, including ISK0503A and its substitutes, are ROHS3 compliant by supplied status, supporting regulatory requirements for environmental compliance.

Q5: When should substitute DC-DC converter models be selected for ISK0503A?
A5: Substitute models are selected when the main part (ISK0503A) is obsolete and compatible alternatives are required for new or legacy designs. Product status and regulatory compliance are essential selection criteria.

Q6: Are there mechanical or performance differences to consider for substitutes?
A6: Substitute modules maintain equivalent mechanical package, mounting type, and environmental ratings. Performance differences are limited to provided output parameters. Only parameters provided in the tables above are used for substitution assessment.