PT5107C Equivalent & Substitute Parts Reference

Part Overview

The PT5107C from Texas Instruments is a DC-DC converter designed as a linear regulator replacement, providing a single 15V output at up to 1A from a 19V–38V input range. With a compact surface-mount 3-SMD module package, it is intended for ITE (Commercial) applications that require features such as overcurrent protection (OCP) and overtemperature protection (OTP). As the PT5107C is now obsolete, it is necessary to identify suitable equivalent and substitute parts that meet the same required electrical and mechanical parameters for continued use in existing designs or repairs.

Substiute Parts

PT5107C

Texas InstrumentsIn Stock: 1123PT5107C Datasheet

Current PartRFQ

R-78B15-1.0L

Recom PowerIn Stock: 12506R-78B15-1.0L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitution logic for the PT5107C DC-DC converter requires direct alignment on electrical parameters: input voltage range, output voltage, maximum output current, and power rating. Mechanical attributes such as mounting type, package dimensions, and compliance with relevant directives are also used for substantiation. Only parts matching or exceeding the functional performance, operational environment, and compliance status are grouped as suitable substitutes.

Key substitution parameters:

• Input Voltage Range
• Output Voltage
• Output Current (Maximum)
• Power Rating
• Number of Outputs
• Features (OCP, OTP)
• Application (ITE Commercial)
• Operating Temperature Range
• Efficiency
• Mounting Type
• Package / Case
• RoHS and REACH Status
• ECCN / HTSUS

Parameter Comparison

Engineering Selection Recommendations

Selection is based on the PT5107C product status being obsolete and the substitute part R-78B15-1.0L holding an active status. Both parts are compliant with ROHS3 and are listed as REACH unaffected. Both carry the ECCN EAR99 classification and identical HTSUS codes. These compliance and regulatory parameters support substitution from a sourcing and documentation perspective.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters for substituting the PT5107C DC-DC converter?
A: Critical parameters are input voltage range, output voltage, output current, power rating, number of outputs, features, application type, operating temperature range, efficiency, mounting type, package, compliance with RoHS and REACH, and regulatory codes.

Q: Can the R-78B15-1.0L be used as a direct substitute for the PT5107C?
A: The R-78B15-1.0L matches the electrical specifications and compliance status for DC-DC converter substitution within the provided parameters. Review of mounting type and package differences is necessary to ensure mechanical compatibility.

Q: Are there physical differences between the PT5107C and R-78B15-1.0L?
A: Yes, the PT5107C uses a surface-mount 3-SMD module package, while the R-78B15-1.0L is available as a through-hole, right-angle 3-SIP module. Dimensional differences exist and should be reviewed for physical fit in the intended application.

Q: What impact does product obsolescence have on selection?
A: The PT5107C is classified as obsolete, making its replacement necessary for new designs and long-term service support, subject to evaluation of all specified parameters.

Q: Are environmental and compliance certifications matched?
A: Both products are RoHS3 compliant and REACH unaffected, with identical MSL, ECCN, and HTSUS codes, ensuring alignment for documentation and regulatory requirements.