Equivalent & Substitute Parts Reference for FMA9AT148

Part Overview

FMA9AT148, manufactured by Rohm Semiconductor, is categorized under Transistors, Bipolar (BJT), specifically as a pre-biased dual PNP surface-mount transistor. It is supplied in the SC-74A, SOT-753 package and is currently listed as Active with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Finding substitute models is necessary for situations involving sourcing constraints, inventory management, or supply chain diversification, while maintaining the required electrical, mechanical, and compliance characteristics.

Substiute Parts

FMA9AT148

Rohm SemiconductorIn Stock: 8853FMA9AT148 Datasheet

Current PartRFQ

RN2507(TE85L,F)

Toshiba Semiconductor and StorageIn Stock: 1059RN2507(TE85L,F) Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the Transistors, Bipolar (BJT) category for FMA9AT148 is determined strictly by the following key parameters: transistor configuration (2 PNP - Pre-Biased Dual type), maximum collector current (Ic), maximum collector-emitter voltage (Vce), base and emitter resistor values (R1, R2), DC current gain (hFE) at specified conditions, Vce saturation voltage at specified conditions, maximum collector cutoff current, transition frequency (ft), power dissipation, surface-mount package compatibility (SC-74A, SOT-753), RoHS compliance, and moisture sensitivity level. Only parts matching these fields are grouped as substitutes.

Parameter Comparison

Engineering Selection Recommendations

FMA9AT148 is classified as Active and is ROHS3 compliant with an unlimited moisture sensitivity level. The substitute RN2507(TE85L,F) from Toshiba Semiconductor and Storage is also listed as Active, RoHS compliant, and has the same moisture sensitivity level (MSL 1, Unlimited). All substitute selections conform to provided compliance categories and certifications without deviation from the explicitly listed product statuses.

Frequently Asked Questions (FAQ)

Q1: What are the main criteria for substituting FMA9AT148 in a design?
Substitution is strictly based on identical transistor configuration, electrical maximum ratings (collector current, collector-emitter voltage), resistor values, current gain, cutoff/saturation performance, transition frequency, thermal ratings, mounting type, and package compatibility as shown in the parameter tables.

Q2: Are there differences in base and emitter resistor values among these substitutes?
Yes. While the base resistor (R1) remains 10kOhms, the emitter base resistor (R2) varies between models. It is set at 10kOhms for FMA9AT148 and at 47kOhms for RN2507(TE85L,F), which may affect certain biasing requirements in specific circuits.

Q3: Is package compatibility ensured between FMA9AT148 and RN2507(TE85L,F)?
Both parts use the SC-74A, SOT-753 surface-mount package, ensuring direct mechanical and footprint compatibility for PCB layouts requiring this device outline.

Q4: Are compliance and handling requirements identical for both parts?
Both FMA9AT148 and RN2507(TE85L,F) are RoHS compliant and carry a moisture sensitivity level of MSL 1 (Unlimited), supporting similar processing and handling during assembly.

Q5: How does transition frequency differ between the parts?
FMA9AT148 has a transition frequency of 250MHz, whereas RN2507(TE85L,F) specifies 200MHz. For applications sensitive to high-frequency performance, this difference should be considered with respect to system requirements as per provided values.