Equivalent & Substitute Parts Reference for DTC124EUBTL

Part Overview

DTC124EUBTL, manufactured by Rohm Semiconductor, is a pre-biased NPN bipolar junction transistor (BJT) designed for surface mount applications. It features a maximum collector current of 30 mA, a breakdown voltage of 50 V, integrated base and emitter resistors, and a compact UMT3F (SC-85) package. The product status is “Not For New Designs,” which necessitates the identification of suitable equivalent or substitute models to maintain ongoing design and production requirements.

Substiute Parts

DTC124EUBTL

Rohm SemiconductorIn Stock: 3233DTC124EUBTL Datasheet

Current PartRFQ

PDTC124EU,115

Nexperia USA Inc.In Stock: 9288PDTC124EU,115 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for DTC124EUBTL is determined strictly by direct matching of its key electrical and mechanical parameters within the transistors, bipolar (BJT) product category. Only parts with equivalent transistor type (NPN - pre-biased), collector current rating, breakdown voltage, integrated resistor values, current gain, power rating, surface mount configuration, and compliance certifications are considered. Package and mounting type are reviewed for compatibility in reflow and assembly process. PDTC124EU,115 from Nexperia is included based on explicit matching criteria.

Parameter Comparison

Engineering Selection Recommendations

DTC124EUBTL is marked “Not For New Designs,” indicating it is not intended for future projects. PDTC124EU,115 is listed as “Active” and is ROHS3 compliant with REACH unaffected status and the same MSL certification. Both parts comply with required environmental and trade regulations, supporting direct substitution within approved application and package constraints.

Frequently Asked Questions (FAQ)

Q1: What are the electrical substitution criteria for replacing DTC124EUBTL?
Substitution is based on matching transistor type (NPN - pre-biased), breakdown voltage (50 V), resistor values (22 kOhms for R1 and R2), maximum collector current rating, current gain, and power rating, following the provided parameters.

Q2: Is PDTC124EU,115 electrically and mechanically compatible as a direct replacement?
PDTC124EU,115 meets the defined electrical parameters and compliance requirements; however, its package is SOT-323 (SC-70) versus UMT3F (SC-85) of the original part. Package compatibility must be confirmed within the outlined parameters.

Q3: Are both DTC124EUBTL and PDTC124EU,115 RoHS and REACH compliant?
Both transistors are ROHS3 compliant and REACH unaffected, matching environmental and safety requirements set forth in the key criteria.

Q4: How does the change in collector current rating affect substitution?
PDTC124EU,115 supports a higher collector current rating (100 mA) compared to DTC124EUBTL (30 mA) and meets the minimum required parameter for direct substitution within the defined category.

Q5: What are the implications of a different package type for automated assembly?
Both parts are surface mount but differ in supplier device package: UMT3F (SC-85) and SOT-323 (SC-70). Review is required for footprint and placement compatibility based on available physical package information.

Q6: Can both parts be used in reflow soldering processes without restriction?
Both components are rated MSL 1 (Unlimited), supporting unrestricted reflow soldering under standard surface mount procedures.