2SD1918TLQ Equivalent & Substitute Parts Reference

Part Overview

2SD1918TLQ is an NPN bipolar junction transistor (BJT) from Rohm Semiconductor, specified for 160V, 1.5A, and 10W in a surface-mount CPT3 package (TO-252-3, DPAK). It delivers a transition frequency of 80MHz and a minimum DC current gain (hFE) of 120 under specified test conditions. The device is RoHS3 compliant with a Moisture Sensitivity Level (MSL) of 1. The product status is "Not For New Designs." Finding alternative models ensures supply continuity and design support at end-of-life or in case of inventory constraints.

Substiute Parts

2SD1918TLQ

Rohm SemiconductorIn Stock: 128092SD1918TLQ Datasheet

Current PartRFQ

2SC4027S-TL-H

onsemiIn Stock: 32012SC4027S-TL-H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined strictly based on the following electrical and mechanical parameters: transistor type, maximum collector current (Ic), maximum collector-emitter breakdown voltage (Vce), saturation voltage (Vce(sat)), collector cutoff current, minimum DC current gain at specific test conditions, maximum power rating, transition frequency, maximum junction temperature, mounting type, and package/case format. Substitutes listed meet these requirements per the provided data, ensuring compatibility in form and fit.

Parameter Comparison

Engineering Selection Recommendations

2SD1918TLQ is marked as "Not For New Designs." 2SC4027S-TL-H is listed as "Active" and is RoHS3 compliant with MSL 1 (Unlimited) and REACH Unaffected status. 2SC4027S-TL-H meets all provided compliance and certification parameters.

Frequently Asked Questions (FAQ)

Q: What criteria determine if 2SC4027S-TL-H can substitute 2SD1918TLQ?
A: Substitution is determined by matching transistor type, maximum collector current, collector-emitter breakdown voltage, collector cutoff current, DC current gain at specified test conditions, transition frequency, power rating, operating temperature, mounting type, package/case, RoHS compliance, MSL rating, and REACH/ECCN status per provided specifications.

Q: Are the mounting types and package formats equivalent between 2SD1918TLQ and 2SC4027S-TL-H?
A: Both are listed as surface mount with TO-252-3, DPAK (2 Leads + Tab), SC-63 package/case.

Q: How does product status affect selection?
A: 2SD1918TLQ has "Not For New Designs" status, while 2SC4027S-TL-H is "Active." For ongoing or new projects, "Active" status is often required.

Q: Are there differences in compliance or certification?
A: Both parts are ROHS3 compliant, MSL 1 (Unlimited), REACH Unaffected, and ECCN EAR99.

Q: Is there any difference in DC current gain or frequency performance?
A: 2SC4027S-TL-H has a higher minimum DC current gain at the specified test point and a higher transition frequency based on the provided data. Only provided test conditions have been considered.