ISF0512 Equivalent & Substitute Parts Reference

Part Overview

The ISF0512 from XP Power is an isolated module DC-DC converter delivering dual outputs of +12V and -12V, each at 42mA, with a 1W total output power. It operates from a 4.5V to 5.5V input voltage, features 1 kV isolation, and is packaged in a 10-SMD surface mount module. This product is classified as “Obsolete,” making it essential to identify compatible alternative models to maintain supply continuity and support existing designs reliant on this form factor and specification.

Substiute Parts

ISF0512

XP PowerIn Stock: 637ISF0512 Datasheet

Current PartRFQ

IAS0105D12

XP PowerIn Stock: 743IAS0105D12 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute DC-DC converters are identified by matching all critical electrical and mechanical parameters, including type, number of outputs, input voltage range, output voltages, maximum output current, power rating, voltage isolation, mounting type, package style, RoHS compliance, and application suitability. Only parts meeting these strict parameter equivalence requirements are included as valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

Select IAS0105D12 as a substitute for ISF0512 based on the following criteria:

• The ISF0512 is obsolete, while IAS0105D12 is active and available in inventory.
• IAS0105D12 meets all applicable RoHS compliance (ROHS3).
• Both parts are classified as ECCN EAR99 and HTSUS 8504.40.9580.
• IAS0105D12 holds formal agency approvals (CE, TUV, UL), supporting qualification in mandatory-compliance environments.

Frequently Asked Questions (FAQ)

Q: What electrical parameters must match when substituting the ISF0512?
A: Substitute parts must have the same type, dual output configuration (+12V, -12V), input voltage range, maximum output current, power rating, isolation voltage, surface mount capability, and RoHS compliance.

Q: Are there package differences to consider between ISF0512 and IAS0105D12?
A: Both feature a 10-SMD surface mount module format; however, IAS0105D12 lists a “10-SMD Module, 6 Leads” package specification. Physical dimensions should be verified in the application context if strict board-level compatibility is required.

Q: Why should one use IAS0105D12 as an alternative?
A: IAS0105D12 is an active part with all equivalent key parameters and is compliant to regulatory requirements, making it suitable for drop-in replacement in designs previously using ISF0512.

Q: Are there differences in operating temperature or isolation voltage between these parts?
A: IAS0105D12 offers an extended operating temperature range and increased isolation voltage compared to ISF0512.

Q: What certifications does IAS0105D12 provide?
A: IAS0105D12 includes CE, TUV, and UL agency approvals.