FMW1T148 Equivalent & Substitute Parts Reference

Part Overview

The FMW1T148 from Rohm Semiconductor is a dual NPN bipolar junction transistor (BJT) array, configured for surface mount applications. It offers a maximum collector-emitter voltage of 50V, a maximum collector current of 150mA, a power rating of 300mW, and operates up to 180MHz. With the product status listed as Obsolete, sourcing alternative or equivalent models is necessary to ensure ongoing design support and component availability in applications that require the specific electrical and mechanical footprint of the FMW1T148.

Substiute Parts

FMW1T148

Rohm SemiconductorIn Stock: 8953FMW1T148 Datasheet

Current PartRFQ

UMX1NTN

Rohm SemiconductorIn Stock: 224446UMX1NTN Datasheet

SimilarRFQ

2SC4207-GR(TE85L,F

Toshiba Semiconductor and StorageIn Stock: 325182SC4207-GR(TE85L,F Datasheet

SimilarRFQ

2SC4207-Y(TE85L,F)

Toshiba Semiconductor and StorageIn Stock: 481512SC4207-Y(TE85L,F) Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitutes for the Rohm Semiconductor FMW1T148 are grouped based on identical or closely matching electrical and mechanical parameters. The following key parameters are used to determine eligible substitute parts:

• Transistor Type: 2 NPN (Dual)
• Voltage - Collector Emitter Breakdown (Max): 50V
• Current - Collector (Ic) (Max): 150mA
• Vce Saturation (Max) @ Ib, Ic
• Current - Collector Cutoff (Max)
• DC Current Gain (hFE) (Min) @ Ic, Vce
• Power - Max
• Frequency - Transition
• Operating Temperature
• Mounting Type
• Package / Case
• RoHS / Environmental Compliance

Parts included as substitutes precisely match these criteria within stated tolerances as provided in the input data.

Parameter Comparison

Engineering Selection Recommendations

Substitute parts for the FMW1T148 should be selected based on their product status (active for UMX1NTN, 2SC4207-GR(TE85L,F, and 2SC4207-Y(TE85L,F)), RoHS/REACH compliance, and Equivalent Compliance Classification Number (ECCN) match. These criteria ensure ongoing availability, environmental compatibility, and adherence to export classifications. All listed substitute models meet MSL 1 (Unlimited) and provide consistent supply chain handling requirements.

Frequently Asked Questions (FAQ)

Q1: What are the most critical parameters for substituting FMW1T148?
A: The critical parameters are transistor type, voltage rating, collector current, saturation voltage, cutoff current, current gain, power, frequency, operating temperature, mounting method, and package type.

Q2: Are the substitute parts footprint compatible with FMW1T148?
A: The 2SC4207-GR(TE85L,F) and 2SC4207-Y(TE85L,F) share the SC-74A, SOT-753 package, matching the mechanical footprint of the FMW1T148. The UMX1NTN uses a 6-TSSOP (SC-88, SOT-363) package, which differs mechanically.

Q3: Do all listed substitute parts meet environmental compliance requirements?
A: All listed substitute parts are RoHS compliant and carry REACH unaffected status, meeting environmental and regulatory compliance requirements.

Q4: Does operating temperature differ among substitute parts?
A: The FMW1T148 and UMX1NTN support up to 150°C (TJ), while 2SC4207-GR(TE85L,F) and 2SC4207-Y(TE85L,F) support up to 125°C (TJ).

Q5: Is current gain (hFE) identical among all substitutes?
A: Current gain rating and test conditions differ slightly among the substitutes as per the provided input data. Refer to the comparison table for exact values.

Q6: Is package selection important when choosing a substitute?
A: Yes. Mechanical compatibility is essential. Only parts with matching package/case and mounting type will provide true drop-in replacement ability without PCB modification.