PUMB19,115 Equivalent & Substitute Parts

Part Overview

The PUMB19,115 is a pre-biased dual PNP bipolar transistor manufactured by Nexperia USA Inc., designed for surface mount applications in the 6-TSSOP package. This component integrates two PNP transistors with internal biasing resistors, rated for 50V collector-emitter breakdown voltage and 100mA maximum collector current. The device is classified as Active product status with AEC-Q100 automotive qualification and ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, inventory management, or supply chain continuity.

Substiute Parts

PUMB19,115

Nexperia USA Inc.In Stock: 854PUMB19,115 Datasheet

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UMB10NTN

Rohm SemiconductorIn Stock: 26491UMB10NTN Datasheet

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UMB11NTN

Rohm SemiconductorIn Stock: 22248UMB11NTN Datasheet

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UMB2NTN

Rohm SemiconductorIn Stock: 5962UMB2NTN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PUMB19,115 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Transistor type must be 2 PNP - Pre-Biased (Dual)
• Maximum collector current must be 100mA or greater
• Collector-emitter breakdown voltage must be 50V or greater
• Package must be 6-TSSOP, SC-88, or SOT-363 (mechanically compatible)
• Mounting type must be Surface Mount

Internal Biasing Resistor Configuration: The PUMB19,115 contains a 22kOhm base resistor (R1). Substitute parts may contain different internal resistor values (R1 and R2), which alter the biasing characteristics and switching behavior. Selection of a substitute with different resistor values requires circuit-level analysis to confirm functional equivalence in the target application.

Compliance and Certification: All substitute parts must maintain ROHS3 compliance and active product status. Automotive-grade qualification (AEC-Q100) is specific to the PUMB19,115 and is not a requirement for substitution in non-automotive applications.

Packaging and Inventory: Substitute parts are available in Cut Tape (CT) and Digi-Reel® packaging formats, which differ from the Tape & Reel (TR) packaging of the main part. Packaging format does not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

PUMB19,115 (Primary Part): The PUMB19,115 is the specified component with automotive-grade qualification (AEC-Q100) and active product status. This part is suitable for applications requiring automotive compliance and the specific 22kOhm base resistor biasing configuration. Maximum power dissipation is 300mW.

UMB10NTN (Rohm Semiconductor): The UMB10NTN is electrically compatible with the PUMB19,115 in terms of maximum ratings (100mA collector current, 50V breakdown voltage, 6-TSSOP package). However, the internal biasing resistor configuration differs significantly (R1 = 2.2kOhms, R2 = 47kOhms versus R1 = 22kOhms in the main part). The UMB10NTN exhibits lower saturation voltage (300mV versus 150mV) and higher transition frequency (250MHz). Maximum power dissipation is 150mW. This part is suitable for applications where the lower base resistor value and enhanced frequency response are compatible with circuit requirements.

UMB11NTN (Rohm Semiconductor): The UMB11NTN maintains electrical compatibility with the PUMB19,115 in maximum ratings and package format. The internal biasing resistor configuration is R1 = 10kOhms and R2 = 10kOhms, providing intermediate biasing characteristics. DC current gain is significantly lower (20 @ 5mA, 5V) compared to the main part (100 @ 1mA, 5V). Maximum power dissipation is 150mW. This part is suitable for applications where moderate base biasing and lower power dissipation are acceptable.

UMB2NTN (Rohm Semiconductor): The UMB2NTN is electrically compatible with the PUMB19,115 in maximum ratings and package format. The internal biasing resistor configuration is R1 = 47kOhms and R2 = 47kOhms, providing higher impedance biasing compared to the main part. DC current gain is 68 @ 5mA, 5V. Maximum power dissipation is 150mW. This part is suitable for applications where higher base impedance biasing is required.

All substitute parts maintain ROHS3 compliance and active product status. Selection between substitute parts depends on circuit-specific requirements for internal biasing resistor values, DC current gain, saturation voltage, and power dissipation limits.

Frequently Asked Questions (FAQ)

Q: Can the UMB10NTN, UMB11NTN, or UMB2NTN be used as direct replacements for the PUMB19,115?

A: Mechanical and electrical compatibility exists for all three Rohm parts in terms of package format (6-TSSOP), maximum ratings (100mA, 50V), and mounting type (surface mount). However, the internal biasing resistor configurations differ, which affects switching behavior and DC current gain. Direct substitution requires circuit-level analysis to confirm that the different biasing characteristics do not impact circuit performance.

Q: What is the significance of the different internal resistor values (R1 and R2)?

A: The internal base resistor (R1) and emitter-base resistor (R2) determine the pre-biasing characteristics of the transistor. The PUMB19,115 has R1 = 22kOhms. The substitute parts have R1 values of 2.2kOhms (UMB10NTN), 10kOhms (UMB11NTN), and 47kOhms (UMB2NTN). Lower R1 values result in stronger biasing and faster switching response. Higher R1 values result in weaker biasing and lower power consumption. Selection depends on the application's switching speed and power requirements.

Q: Are all substitute parts suitable for automotive applications?

A: The PUMB19,115 carries AEC-Q100 automotive qualification. The Rohm substitute parts (UMB10NTN, UMB11NTN, UMB2NTN) are not specified with automotive qualification in the provided data. Use of these parts in automotive applications requires verification of their suitability for the specific application environment and compliance requirements.

Q: What is the difference in power dissipation between the main part and substitute parts?

A: The PUMB19,115 has a maximum power dissipation of 300mW. All three Rohm substitute parts (UMB10NTN, UMB11NTN, UMB2NTN) have a maximum power dissipation of 150mW. Applications requiring power dissipation above 150mW must use the PUMB19,115 or confirm that circuit operating conditions remain within the 150mW limit for substitute parts.

Q: Do the substitute parts have the same saturation voltage as the PUMB19,115?

A: No. The PUMB19,115 has a maximum saturation voltage of 150mV @ 500µA, 10mA. The Rohm substitute parts have a maximum saturation voltage of 300mV. Lower saturation voltage results in lower power loss during saturation. Applications sensitive to saturation voltage performance must account for this difference.

Q: Are all parts available in the same packaging format?

A: The PUMB19,115 is supplied in Tape & Reel (TR) packaging. The Rohm substitute parts are supplied in Cut Tape (CT) and Digi-Reel® packaging. All parts use the same 6-TSSOP package format, which is mechanically compatible. Packaging format differences affect handling and storage but do not impact electrical or mechanical compatibility on the circuit board.

Q: What is the transition frequency specification, and why do only the substitute parts list this parameter?

A: Transition frequency (fT) is the frequency at which the current gain of the transistor drops to unity. The Rohm substitute parts specify 250MHz transition frequency. The PUMB19,115 does not provide this specification in the available data. Higher transition frequency indicates faster switching capability. Applications requiring high-frequency operation should consider the 250MHz specification of the substitute parts.

Q: Can I use UMB10NTN, UMB11NTN, and UMB2NTN interchangeably?

A: No. Each substitute part has different internal biasing resistor values and DC current gain characteristics. UMB10NTN (R1 = 2.2kOhms) provides the strongest biasing and highest frequency response. UMB11NTN (R1 = 10kOhms) provides intermediate biasing. UMB2NTN (R1 = 47kOhms) provides the weakest biasing and lowest power consumption. Selection must be based on circuit-specific requirements for biasing strength and switching speed.

Q: What compliance certifications apply to all parts?

A: All parts (PUMB19,115 and the three Rohm substitutes) are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. All parts have Moisture Sensitivity Level (MSL) of 1 (Unlimited). The PUMB19,115 carries additional AEC-Q100 automotive qualification, which is not specified for the Rohm parts.