FMY4AT148 Equivalent & Substitute Parts Reference

Part Overview

FMY4AT148 from Rohm Semiconductor is a surface-mount bipolar transistor array featuring 1 NPN and 1 PNP transistor. It supports a collector-emitter breakdown voltage up to 50V/60V, a continuous collector current of 150mA, and power dissipation up to 300mW. The part is active and available in SMT5 (SC-74A, SOT-753) packaging. Identifying substitute or equivalent models is required for ensuring supply chain stability, alternate vendor sourcing, and compatibility in design revisions.

Substiute Parts

FMY4AT148

Rohm SemiconductorIn Stock: 5044FMY4AT148 Datasheet

Current PartRFQ

UMZ1NTR

Rohm SemiconductorIn Stock: 215239UMZ1NTR Datasheet

SimilarRFQ

FMY4AT148

Rohm SemiconductorIn Stock: 5044FMY4AT148 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are included based on identical or highly similar electrical and mechanical parameters. Specifically, substitutes must match the transistor type (NPN/PNP array), collector-emitter breakdown voltage, maximum collector current, current gain, cutoff current, frequency, maximum power dissipation, mounting method, package/case, operating temperature, and compliance statuses. Substitution is restricted strictly to devices with parameters provided above.

Parameter Comparison

Engineering Selection Recommendations

Product status for FMY4AT148 and UMZ1NTR is active. Both parts are ROHS3 compliant, unaffected by REACH, and have an unlimited moisture sensitivity level (MSL 1). All package options listed are for surface mount assembly. Only components possessing identical compliance status and active availability should be considered for substitution.

Frequently Asked Questions (FAQ)

Q1: Which electrical parameters must match for FMY4AT148 substitution?
A1: Substitute parts must match transistor type, collector-emitter breakdown voltage, maximum collector current, current gain, cutoff current, frequency performance, and maximum power dissipation.

Q2: Are packaging differences permitted in substitutions?
A2: Packaging format and case style must be considered for mechanical compatibility. FMY4AT148 uses SC-74A/SOT-753 in SMT5; substitute part UMZ1NTR uses 6-TSSOP, SC-88, SOT-363 in UMT6. Ensure the device package supports application or PCB constraints.

Q3: What compliance certifications are required?
A3: Substitutes must be ROHS3 compliant, unaffected by REACH, and rated MSL 1 (Unlimited).

Q4: Does operating temperature impact interchangeability?
A4: FMY4AT148 and UMZ1NTR share a maximum junction temperature of 150°C, supporting direct substitution where identical or higher temperature ratings are required.

Q5: Can UMZ1NTR be used as a substitute for FMY4AT148?
A5: UMZ1NTR matches all required electrical parameters, compliance status, and is actively available. Note that power handling differs; mechanical package compatibility must be verified in the application.