ISF2405A Equivalent & Substitute DC DC Converter Reference

Part Overview

The XP Power ISF2405A is an isolated module DC-DC converter providing a single 5V output at up to 200mA (1W max), designed for ITE (commercial) applications. The ISF2405A features a wide input range of 21.6V to 26.4V, 1kV isolation, 72% efficiency, surface mount packaging (8-SMD Module), and measures 12.7mm x 7.5mm x 6.0mm. The ISF2405A is currently classified as Obsolete, creating a need to identify directly substitutable alternatives with matching or superior characteristics for continued design support or component replacement.

Substiute Parts

ISF2405A

XP PowerIn Stock: 821ISF2405A Datasheet

Current PartRFQ

IES0124S05

XP PowerIn Stock: 808IES0124S05 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitutes for the XP Power ISF2405A are selected based on matching the following parameters: isolated module type, input voltage range (21.6V – 26.4V), output voltage (5V), maximum output current (200mA), output power (1W), number of outputs (1), surface mount packaging, and compliance with RoHS3. Additional considerations include matching or exceeding isolation voltage, operating temperature range, and efficiency. Substitute parts are only selected where all critical electrical and mechanical parameters, as specified, align with the original ISF2405A characteristics.

Parameter Comparison

Engineering Selection Recommendations

The ISF2405A (Obsolete) and IES0124S05 (Active) are both RoHS3 Compliant, surface-mount isolated modules with identical electrical characteristics: input range, output voltage, output current, and output power. The IES0124S05 additionally carries formal approvals (CE, UKCA, UL) and is based on an updated series with currently active manufacturing status. All compliance and regulatory parameters match or exceed those of the ISF2405A.

Frequently Asked Questions (FAQ)

Q1: What determines if IES0124S05 is a valid substitute for ISF2405A?
A1: Valid substitution is based on matching electrical characteristics (input range, output voltage, current, power), surface mount form factor, isolation voltage equal to or exceeding original, compliance with RoHS3, and equivalent or broader operating temperature range.

Q2: Are the physical dimensions and pinouts identical?
A2: Both parts use 8-SMD Module packages; however, dimensions and the number of leads may differ. Verify mechanical fit and land pattern compatibility based on provided dimensions and package style.

Q3: Does the substitute part support all certifications of the original?
A3: The IES0124S05 provides CE, UKCA, and UL approvals, and complies with RoHS3, aligning with or exceeding compliance information given for ISF2405A.

Q4: Can the substitute be used in ITE commercial applications?
A4: Both the ISF2405A and IES0124S05 are specified for ITE (commercial) applications in the provided parameters.

Q5: Is operating temperature range a factor in substitution?
A5: The IES0124S05 offers an extended operating temperature range (-40°C to +105°C with derating) versus the ISF2405A’s -40°C to +85°C, fulfilling or exceeding the original requirements. Only specified temperature ranges are considered.

Q6: What RoHS status applies to both parts?
A6: Both are listed as ROHS3 Compliant in the provided specifications.