DMA964020R Equivalent & Substitute Parts

Part Overview

The DMA964020R is a pre-biased dual PNP bipolar transistor manufactured by Panasonic Electronic Components in the SSMini6-F3-B surface mount package. This component integrates two PNP transistors with internal biasing resistors, designed for applications requiring compact switching and amplification functionality. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain electrical compatibility across collector current, breakdown voltage, biasing resistor values, and power dissipation specifications.

Substiute Parts

DMA964020R

Panasonic Electronic ComponentsIn Stock: 24429DMA964020R Datasheet

Current PartRFQ

NSBA124XDXV6T1G

onsemiIn Stock: 1078NSBA124XDXV6T1G Datasheet

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RN2903FE(TE85L,F)

Toshiba Semiconductor and StorageIn Stock: 4310RN2903FE(TE85L,F) Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DMA964020R is determined by strict adherence to the following electrical and mechanical parameters:

Primary Compatibility Criteria:

• Transistor configuration: 2 PNP - Pre-Biased (Dual)
• Maximum collector current: 100 mA
• Maximum collector-emitter breakdown voltage: 50 V
• Base resistor (R1): 22 kOhms
• Emitter-base resistor (R2): 22 kOhms (or functionally equivalent)
• Surface mount packaging: SOT-563 or SOT-666 compatible
• Moisture sensitivity level: 1 (Unlimited)

Secondary Compatibility Considerations:

• Power dissipation rating: minimum 125 mW
• DC current gain (hFE): minimum 60 at specified test conditions
• Collector-emitter saturation voltage: maximum 250 mV at specified bias conditions
• Collector cutoff current: maximum 500 nA

Substitute parts must satisfy all primary criteria and maintain compatibility with secondary parameters within the operational envelope of the original design.

Parameter Comparison

Engineering Selection Recommendations

NSBA124XDXV6T1G (onsemi)

This substitute maintains all primary electrical parameters identical to the DMA964020R with the exception of the emitter-base resistor (R2), which is specified at 47 kOhms versus 22 kOhms in the original part. The NSBA124XDXV6T1G offers superior power dissipation capability (500 mW versus 125 mW) and is currently in active production status. The part carries ROHS3 compliance and REACH Unaffected designation. Higher DC current gain (80 versus 60 minimum) and identical saturation voltage specifications support direct substitution in applications where the R2 resistor value difference does not impact circuit function. Tape & Reel packaging availability ensures supply chain continuity.

RN2903FE(TE85L,F) (Toshiba Semiconductor and Storage)

This substitute maintains identical base and emitter-base resistor values (22 kOhms each) and all primary electrical parameters matching the DMA964020R. The RN2903FE(TE85L,F) is currently in active production status with RoHS compliance certification. The part specifies a transition frequency of 200 MHz and lower collector cutoff current (100 nA versus 500 nA), providing enhanced performance characteristics for high-frequency applications. Power dissipation is specified at 100 mW, which is below the original 125 mW rating; this requires verification that circuit power requirements do not exceed this limit. Tape & Reel packaging is available.

Selection Basis:

Both substitute parts satisfy the mandatory primary compatibility criteria. Selection between NSBA124XDXV6T1G and RN2903FE(TE85L,F) depends on circuit-specific requirements: the onsemi part provides higher power headroom and higher current gain, while the Toshiba part maintains exact resistor matching and offers transition frequency specification. Both parts carry appropriate RoHS compliance certifications and unlimited moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can the NSBA124XDXV6T1G be used as a direct replacement for the DMA964020R despite the different R2 resistor value (47 kOhms versus 22 kOhms)?

A: The NSBA124XDXV6T1G maintains all critical electrical parameters (collector current, breakdown voltage, base resistor, saturation voltage, and cutoff current) within specification. The R2 resistor difference affects the internal biasing network and may alter switching characteristics. Circuit validation is required to confirm functional equivalence in the specific application.

Q: What is the significance of the power dissipation difference between the DMA964020R (125 mW) and its substitutes?

A: The DMA964020R is rated at 125 mW maximum power dissipation. The NSBA124XDXV6T1G is rated at 500 mW, providing greater thermal margin. The RN2903FE(TE85L,F) is rated at 100 mW, which is below the original specification. If circuit design requires operation near the 125 mW limit, the RN2903FE(TE85L,F) may not be suitable without thermal management modifications.

Q: Are the package designations SSMini6-F3-B, SOT-563, and ES6 physically compatible?

A: All three parts are specified as SOT-563 or SOT-666 compatible surface mount packages. The SSMini6-F3-B, SOT-563, and ES6 designations refer to supplier-specific package identifications for the same industry-standard footprint. Physical compatibility with PCB layouts designed for SOT-563 is confirmed.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant certifications?

A: Both certifications indicate compliance with Restriction of Hazardous Substances directives. ROHS3 represents the current version of the RoHS directive. Both designations confirm the absence of restricted substances and are acceptable for applications requiring RoHS compliance.

Q: Does the 200 MHz transition frequency specification of the RN2903FE(TE85L,F) provide an advantage over the DMA964020R?

A: The RN2903FE(TE85L,F) specifies a transition frequency of 200 MHz, while the DMA964020R does not provide this specification. Higher transition frequency indicates capability for faster switching applications. This specification is relevant only if the circuit operates at frequencies approaching or exceeding this limit.

Q: What does Moisture Sensitivity Level (MSL) 1 (Unlimited) mean?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity restrictions and does not require special handling, storage, or baking procedures prior to soldering. All three parts carry this designation, confirming equivalent moisture handling requirements.

Q: Can the RN2903FE(TE85L,F) be used in applications where the DMA964020R operates at maximum power dissipation?

A: The RN2903FE(TE85L,F) is rated at 100 mW maximum power dissipation, which is below the DMA964020R specification of 125 mW. Applications operating at or near 125 mW require thermal analysis to confirm the RN2903FE(TE85L,F) can dissipate the required power without exceeding junction temperature limits.