2SC5161TLB Equivalent & Substitute Parts Reference

Part Overview

The 2SC5161TLB by Rohm Semiconductor is an NPN Bipolar Junction Transistor (BJT) rated for 400 V and 2 A, supplied in a Tape & Reel (TR) package, categorized under Transistors, Bipolar (BJT). This device is characterized by low saturation voltage, suitable power dissipation, and surface-mount compatibility with the TO-252-3, DPAK (2 Leads + Tab), SC-63 package type. The product is marked Not For New Designs, making identification of strictly equivalent or substitute models essential for sustaining existing product lines, inventory continuity, or maintenance of legacy designs.

Substiute Parts

2SC5161TLB

Rohm SemiconductorIn Stock: 11932SC5161TLB Datasheet

Current PartRFQ

BULD741T4

STMicroelectronicsIn Stock: 5343BULD741T4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Selection of substitute or equivalent BJTs for the 2SC5161TLB is based strictly on the following key parameters: transistor type (NPN), maximum collector current (Ic), maximum collector-emitter breakdown voltage (Vce), collector-emitter saturation voltage (Vce(sat)), DC current gain (hFE), maximum power dissipation, mounting type, package format, and environmental compliance (RoHS, MSL, REACH, ECCN, HTSUS). Only parts matching these parameters are listed as potential substitutes.

Parameter Comparison

Engineering Selection Recommendations

Only parts with the same environmental compliance status are presented. Both 2SC5161TLB and BULD741T4 are ROHS3 Compliant, have MSL 1 (Unlimited), and are REACH Unaffected, with identical ECCN and HTSUS assignments. The original part is Not For New Designs, thus suitable, compliant substitutes with active product status are enumerated for production and maintenance continuity.

Frequently Asked Questions (FAQ)

Q1: What parameters are used to determine equivalency for 2SC5161TLB substitute transistors?
A1: Substitute selection is based strictly on transistor type (NPN), maximum collector current, maximum collector-emitter voltage, collector-emitter saturation voltage, DC current gain, power rating, mounting type, package compatibility, and compliance standards.

Q2: Is package compatibility mandatory for the substitute part?
A2: Yes. Both the main and substitute parts must use the TO-252-3, DPAK (2 Leads + Tab), SC-63 package for proper mechanical and PCB compatibility.

Q3: Are there environmental or compliance differences between 2SC5161TLB and BULD741T4?
A3: No. Both 2SC5161TLB and BULD741T4 are ROHS3 Compliant, MSL 1 (Unlimited), and REACH Unaffected.

Q4: What are the main differences in electrical parameters between 2SC5161TLB and BULD741T4?
A4: BULD741T4 supports a higher maximum collector current and power dissipation, with a higher Vce(sat) and higher maximum collector cutoff current. Both parts are NPN, rated at 400 V collector-emitter voltage, and meet the minimum hFE requirement.

Q5: Can BULD741T4 be used directly to replace 2SC5161TLB in existing designs?
A5: Based only on the provided electrical, mechanical, and compliance parameters, BULD741T4 matches the strict criteria for a substitute in applications requiring the same category, type, and footprint.