PUMB10F Equivalent & Substitute Parts

Part Overview

The PUMB10F is a pre-biased dual PNP bipolar transistor manufactured by Nexperia USA Inc., designed for surface mount applications in the 6-TSSOP (SOT-363) package. This component integrates two PNP transistors with internal biasing resistors, eliminating the need for external base resistor networks in switching and amplification circuits. The part is classified as Active and carries AEC-Q101 automotive qualification, making it suitable for automotive-grade applications. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications are maintained across the specified parameter range.

Substiute Parts

PUMB10F

Nexperia USA Inc.In Stock: 909PUMB10F Datasheet

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NSVMUN5135DW1T1G

onsemiIn Stock: 968NSVMUN5135DW1T1G Datasheet

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RN2905,LF(CT

Toshiba Semiconductor and StorageIn Stock: 4166RN2905,LF(CT Datasheet

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UMB10NTN

Rohm SemiconductorIn Stock: 26491UMB10NTN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PUMB10F are qualified based on the following criteria:

Electrical Parameter Equivalence:

• Dual PNP pre-biased transistor configuration
• Maximum collector current of 100 mA
• Maximum collector-emitter breakdown voltage of 50 V
• Internal base resistor (R1) of 2.2 kOhms
• Internal emitter-base resistor (R2) of 47 kOhms
• Saturation voltage performance within acceptable operating range
• Transition frequency of 180 MHz or greater

Mechanical & Package Compatibility:

• Surface mount technology
• 6-pin package footprint compatible with SOT-363, SC-88, or equivalent designations

Compliance & Certification:

• ROHS3 compliance
• Moisture Sensitivity Level 1 (Unlimited)
• Active product status

All substitute parts listed maintain these core parameters within the specified tolerances, ensuring functional and mechanical interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

NSVMUN5135DW1T1G (onsemi): This substitute maintains full electrical equivalence with the PUMB10F across all critical parameters: 100 mA collector current, 50 V breakdown voltage, and identical internal resistor values (2.2 kOhms and 47 kOhms). Both parts carry AEC-Q101 automotive qualification and ROHS3 compliance. The NSVMUN5135DW1T1G exhibits higher saturation voltage (250 mV vs. 100 mV) and higher collector cutoff current (500 nA vs. 100 nA), which may affect switching speed in precision applications but remains within acceptable operating margins for standard switching circuits. This part is suitable for direct substitution in automotive applications.

RN2905,LF(CT (Toshiba Semiconductor and Storage): This substitute provides electrical equivalence in core parameters: 100 mA collector current, 50 V breakdown voltage, and matching internal resistor configuration. The transition frequency of 200 MHz exceeds the PUMB10F specification of 180 MHz, providing improved high-frequency performance. However, the maximum power dissipation is reduced to 200 mW compared to 300 mW for the PUMB10F, requiring thermal design consideration in high-power applications. Saturation voltage is higher at 300 mV. This part is suitable for applications where power dissipation does not exceed 200 mW and automotive qualification is not required.

UMB10NTN (Rohm Semiconductor): This substitute maintains full electrical equivalence in core switching parameters: 100 mA collector current, 50 V breakdown voltage, and identical internal resistor values. The transition frequency of 250 MHz provides superior high-frequency performance compared to the PUMB10F. However, maximum power dissipation is limited to 150 mW, the lowest among all substitutes, requiring careful thermal management in power-intensive applications. Collector cutoff current is higher at 500 nA. This part is suitable for high-frequency applications where power dissipation remains below 150 mW and automotive qualification is not required.

Frequently Asked Questions (FAQ)

Q: Can NSVMUN5135DW1T1G replace PUMB10F in automotive applications?

A: Yes. Both parts carry AEC-Q101 automotive qualification, ROHS3 compliance, and maintain equivalent electrical parameters for the core switching function. The higher saturation voltage (250 mV vs. 100 mV) and collector cutoff current (500 nA vs. 100 nA) do not prevent substitution in standard automotive switching circuits.

Q: What is the primary difference between RN2905,LF(CT and PUMB10F?

A: The RN2905,LF(CT has a lower maximum power rating (200 mW vs. 300 mW) and higher saturation voltage (300 mV vs. 100 mV). The transition frequency is higher at 200 MHz. Substitution is suitable only when power dissipation remains below 200 mW.

Q: Is UMB10NTN suitable for high-power applications?

A: No. The UMB10NTN has the lowest maximum power rating at 150 mW. It is suitable only for applications where power dissipation does not exceed this limit. For applications requiring 300 mW dissipation capability, the PUMB10F or NSVMUN5135DW1T1G are required.

Q: Do all substitute parts use the same package footprint?

A: All substitute parts use compatible 6-pin surface mount packages designated as SOT-363, SC-88, or equivalent (UMT6, US6). While the physical footprints are compatible, supplier device package designations differ. Verify PCB layout compatibility with the specific supplier package before assembly.

Q: What is the significance of the internal resistor values (R1 = 2.2 kOhms, R2 = 47 kOhms)?

A: These internal resistors establish the pre-biasing network for the dual PNP transistors, eliminating the need for external biasing resistors. All qualified substitutes maintain these identical values, ensuring equivalent switching characteristics and circuit behavior.

Q: Can RN2905,LF(CT be used in place of PUMB10F without circuit modification?

A: Direct substitution is possible for switching applications where power dissipation does not exceed 200 mW. The higher saturation voltage may affect switching speed in precision timing circuits. No external component changes are required due to identical internal resistor configuration.

Q: Which substitute part offers the best high-frequency performance?

A: The UMB10NTN provides the highest transition frequency at 250 MHz, followed by RN2905,LF(CT at 200 MHz, compared to PUMB10F at 180 MHz. Selection depends on application frequency requirements and power dissipation constraints.

Q: Are all parts RoHS3 compliant?

A: Yes. All listed parts, including PUMB10F and all substitutes, are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting environmental and handling requirements for commercial and automotive applications.