DMC261010R Equivalent & Substitute Parts

Part Overview

The DMC261010R is a pre-biased dual NPN bipolar transistor manufactured by Panasonic Electronic Components, designed for surface mount applications in the Mini5-G3-B package. This component integrates two NPN transistors with internal base and emitter-base resistors, rated for 50V collector-emitter breakdown voltage, 100mA maximum collector current, and 300mW power dissipation. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for existing designs.

Substiute Parts

DMC261010R

Panasonic Electronic ComponentsIn Stock: 81097DMC261010R Datasheet

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FMG9AT148

Rohm SemiconductorIn Stock: 62363FMG9AT148 Datasheet

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RN1502(TE85L,F)

Toshiba Semiconductor and StorageIn Stock: 13269RN1502(TE85L,F) Datasheet

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UMH11NFHATN

Rohm SemiconductorIn Stock: 3165UMH11NFHATN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DMC261010R is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Transistor configuration: 2 NPN - Pre-Biased (Dual)
• Maximum collector current: 100mA
• Maximum collector-emitter breakdown voltage: 50V
• Internal base resistor (R1): 10kOhms
• Internal emitter-base resistor (R2): 10kOhms
• Maximum power dissipation: 300mW (or greater)
• Surface mount technology
• RoHS compliance status

Package Compatibility: Substitute parts must use SC-74A or SOT-753 package designations, or equivalent surface mount packages that maintain the same pinout and footprint compatibility.

Three substitute parts meet these criteria with variations in package form factor, frequency response, and power rating. All substitutes maintain the core electrical specifications and internal resistor values required for direct functional replacement.

Parameter Comparison

Engineering Selection Recommendations

FMG9AT148 (Rohm Semiconductor): This substitute maintains full electrical equivalence with the DMC261010R across all critical parameters. The FMG9AT148 is actively manufactured and available in high inventory (62,300 pcs). It provides identical maximum power rating (300mW), collector current (100mA), and internal resistor values. The part is ROHS3 compliant and packaged in SC-74A/SOT-753, ensuring direct footprint compatibility. The addition of 250MHz transition frequency specification provides enhanced performance documentation compared to the original part.

RN1502(TE85L,F) (Toshiba Semiconductor and Storage): This substitute achieves full electrical equivalence with superior DC current gain characteristics (50 @ 10mA, 5V versus 35 @ 5mA, 10V on the original). The RN1502 maintains identical maximum ratings and internal resistor configuration. Active product status with 13,190 pcs in inventory ensures supply continuity. ROHS3 compliance and SC-74A/SOT-753 packaging provide direct compatibility. The 250MHz transition frequency and lower collector cutoff current (100nA versus 500nA) indicate enhanced performance specifications.

UMH11NFHATN (Rohm Semiconductor): This substitute meets all mandatory electrical equivalence criteria with the exception of maximum power dissipation (150mW versus 300mW). The UMH11NFHATN is suitable for applications where thermal dissipation requirements do not exceed 150mW. This part carries automotive-grade qualification (AEC-Q101) and is actively manufactured with 3,142 pcs in inventory. The package differs (6-TSSOP/SC-88/SOT-363 versus SC-74A/SOT-753), requiring PCB layout modification. ROHS3 compliance and 250MHz transition frequency are provided.

Primary Recommendation: FMG9AT148 is the preferred substitute, offering complete electrical and mechanical compatibility with active product status and robust inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the FMG9AT148 directly replace the DMC261010R without PCB modification?

A: Yes. The FMG9AT148 uses identical SC-74A/SOT-753 packaging and maintains all electrical specifications including maximum collector current (100mA), collector-emitter breakdown voltage (50V), internal base and emitter-base resistors (10kOhms each), and maximum power dissipation (300mW). No PCB layout changes are required.

Q: What is the difference between the RN1502(TE85L,F) and FMG9AT148 substitutes?

A: Both parts maintain full electrical equivalence to the DMC261010R. The RN1502 exhibits higher DC current gain (50 @ 10mA, 5V) and lower collector cutoff current (100nA), indicating superior performance characteristics. Both use identical packaging. Selection between these parts depends on inventory availability and supplier preference, as both are functionally equivalent for the DMC261010R application.

Q: Why is the UMH11NFHATN listed as a substitute if it has lower power rating?

A: The UMH11NFHATN meets all mandatory electrical equivalence criteria except maximum power dissipation (150mW versus 300mW). It is suitable for applications where thermal dissipation does not exceed 150mW. The different package (6-TSSOP/SC-88/SOT-363) requires PCB redesign. This substitute is appropriate only for designs with reduced power requirements and where layout modification is feasible.

Q: Are all substitute parts RoHS compliant?

A: Yes. The DMC261010R is RoHS Compliant. All three substitutes (FMG9AT148, RN1502(TE85L,F), and UMH11NFHATN) are ROHS3 Compliant, meeting current RoHS standards. All parts maintain MSL 1 (Unlimited) moisture sensitivity classification.

Q: What is the significance of the 250MHz transition frequency listed for substitute parts?

A: The transition frequency (fT) specification indicates the frequency at which the transistor's current gain drops to unity. The original DMC261010R does not specify this parameter. The substitute parts provide 250MHz transition frequency, indicating enhanced high-frequency performance capability. This specification does not affect substitution validity for applications operating below this frequency threshold.

Q: Can the UMH11NFHATN be used in high-power applications?

A: No. The UMH11NFHATN is rated for maximum 150mW power dissipation, compared to 300mW for the DMC261010R and other substitutes. Applications requiring sustained power dissipation above 150mW must use FMG9AT148 or RN1502(TE85L,F). The UMH11NFHATN is suitable only for low-power signal switching applications.

Q: What packaging considerations apply when selecting a substitute?

A: FMG9AT148 and RN1502(TE85L,F) use SC-74A/SOT-753 packaging, identical to the DMC261010R, requiring no PCB modification. The UMH11NFHATN uses 6-TSSOP/SC-88/SOT-363 packaging, which differs in pinout and footprint, necessitating PCB layout redesign. For direct replacement without layout changes, select FMG9AT148 or RN1502(TE85L,F).