Equivalent & Substitute Parts for 78ST105VC

Part Overview

The 78ST105VC from Texas Instruments is a non-isolated Point-of-Load (PoL) DC DC converter module with a single 5V output rated at 1.5A. It is designed for ITE (Commercial) applications, featuring over-temperature and short-circuit protection, and mounted in a 3-SIP through-hole case. The product is classified as obsolete, which necessitates finding suitable substitute models that match critical electrical, mechanical, and compliance parameters.

Substiute Parts

78ST105VC

Texas InstrumentsIn Stock: 75678ST105VC Datasheet

Current PartRFQ

R-78B5.0-1.5

Recom PowerIn Stock: 65094R-78B5.0-1.5 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 78ST105VC are identified strictly by matching the following parameters: output voltage (5V), output current (1.5A), number of outputs (1), input voltage range, package style (3-SIP Module), mounting type (Through Hole), application (ITE Commercial), protection features (OTP, SCP), operating temperature range (-40°C ~ 85°C), and relevant compliance statuses. Only part numbers with direct correspondence to these criteria are considered for substitution.

Parameter Comparison

Engineering Selection Recommendations

The main part, 78ST105VC, is obsolete; substitute selection should be based on product status, RoHS3 compliance, REACH status, MSL level, and matching ECCN and HTSUS codes. R-78B5.0-1.5 from Recom Power meets the necessary compliance and certification criteria and provides an equivalent function based on the directly comparable parameters.

Frequently Asked Questions (FAQ)

Q1: What parameters are critical for substituting DC DC converter modules in this category?
A1: Output voltage, output current, number of outputs, input voltage range, protection features, mounting type, package/case dimensions, operating temperature, application type, and compliance certifications.

Q2: Is the package type (3-SIP Module, Through Hole) essential for substitution compatibility?
A2: Yes, exact matching of package type and mounting method is necessary to ensure mechanical compatibility with existing designs.

Q3: How do operating temperature requirements affect substitution selection?
A3: The substitute must support an operating temperature range that matches the original part to ensure reliable performance in the target application environment.

Q4: Why is inventory level not considered in substitution criteria?
A4: Substitution decisions must be strictly based on electrical, mechanical, and compliance parameters; inventory is not a technical selection criterion.

Q5: What compliance statuses are relevant for substitute selection?
A5: RoHS3 compliance, REACH status, MSL rating, ECCN, and HTSUS codes as provided must be matched to satisfy regulatory and certification requirements for commercial applications.