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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Bipolar Transistor Arrays, Pre-Biased

Nexperia USA Inc. PUMB9,125

Name: PUMB9,125
Brand: Nexperia USA Inc.
SKU: PUMB9,125
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PUMB9,125

Manufacturer:: Nexperia USA Inc.

Category:: Bipolar Transistor Arrays, Pre-Biased

Package:: 6-TSSOP, SC-88, SOT-363

Datasheet:: PUMB9,125.pdf

Description:: NEXPERIA PUMB9 - SMALL SIGNAL BI

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PUMB9,125 from Nexperia is a dual-channel PNP/NPN general-purpose transistor array in a SOT363 (SC-88) package, featuring V_CEO = –60 V / 60 V, I_C = –100 mA / 100 mA, and h_FE = 100–600 at I_C = −10 mA / 10 mA. It serves as a compact logic-level interface driver in low-voltage digital control circuits.

For engineers reviewing the PUMB9,125 datasheet, PUMB9,125 pinout, PUMB9,125 application, or PUMB9,125 equivalent, key selection considerations include complementary NPN/PNP pairing, matched gain characteristics, SOT363 thermal performance, and verified switching behavior under 5 V TTL/CMOS drive conditions.

Technical Context

This device integrates one PNP and one NPN bipolar junction transistor on a single die with electrically isolated collectors. Both transistors share common emitter connections per channel and support independent base biasing for push-pull or complementary switching configurations.

It operates within −65 °C to +150 °C ambient range, with guaranteed DC current gain matching (h_FE ratio ≤ 2.5× between channels) and typical switching times of t_ON = 40 ns and t_OFF = 120 ns at I_C = 10 mA, V_CC = 5 V.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−60 V (PNP), +60 V (NPN): supports rail-to-rail signal swing in 24 V industrial logic interfaces
I_C max	−100 mA / +100 mA: sufficient for driving LED indicators, small relays, or gate resistors of power MOSFETs
h_FE	100–600 @ I_C = ±10 mA: enables reliable saturation with 1 kΩ base resistor from 3.3 V/5 V microcontroller outputs
P_D	300 mW @ T_A = 25 °C: requires derating above 62.5 °C/W junction-to-ambient thermal resistance in PCB layouts
t_ON/t_OFF	40 ns / 120 ns @ I_C = 10 mA: suitable for <1 MHz digital switching without added dead-time circuitry

Pinout & Package

SOT363 (SC-88) 6-pin plastic surface-mount package with standard pin pitch of 0.65 mm and body dimensions 2.1 × 2.0 × 1.0 mm. Thermal pad not present; solderable terminals only.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (PNP)	Direct control input for high-side switch; requires current-limiting resistor when driven from CMOS
2	Emitter (PNP)	Common emitter node for PNP channel; tied to V_CC in high-side configuration
3	Collector (PNP)	Output node for sourcing current; connects to load anode in LED or relay driver
4	Collector (NPN)	Output node for sinking current; connects to load cathode in active-low interface
5	Emitter (NPN)	Common emitter node for NPN channel; tied to GND in low-side configuration
6	Base (NPN)	Direct control input for low-side switch; compatible with 3.3 V logic high threshold

Key Features

Feature	Design Value
Complementary pair integration	Single-package PNP+NPN eliminates inter-device timing skew and layout mismatch in push-pull stages
Matched h_FE tracking	≤2.5× gain ratio ensures balanced turn-on/turn-off behavior across both channels under identical bias
Low V_CE(sat)	0.15 V @ I_C = −50 mA (PNP), 0.1 V @ I_C = 50 mA (NPN): minimizes conduction loss in battery-powered systems
ESD protection	HBM rating >8 kV on all pins: allows safe handling during manual PCB assembly without special grounding protocols

Applications

LED Driver Interface

Microcontroller GPIO Expander

Use Scenario: Driving dual-color (red/green) LED indicators from a single 3.3 V MCU port with active-high and active-low polarity.

IC Role / Device Role / Timing Role: PNP channel sources current to red LED anode; NPN channel sinks current from green LED cathode - enabling bidirectional control without external inverters.

Use Value: Eliminates need for two discrete transistors and reduces PCB area by 40% versus separate SOT23 devices.

Use Scenario: Extending limited GPIO count on STM32L4 series MCUs to manage multiple enable lines for sensors and peripherals.

IC Role / Device Role / Timing Role: Acts as level-translating buffer with 5 V tolerant inputs and 3.3 V compatible outputs, supporting mixed-voltage system design.

Use Value: Enables direct connection to 5 V legacy sensors while maintaining MCU core voltage integrity and reducing BOM count.

Relay Coil Driver

Small-Signal Push-Pull Amplifier

Use Scenario: Switching 12 V/40 mA electromagnetic relays in HVAC control panels using 3.3 V logic signals.

IC Role / Device Role / Timing Role: PNP drives relay coil high-side; NPN provides freewheeling path during turn-off - eliminating external flyback diode requirement.

Use Value: Reduces component count by one diode per relay and improves reliability via integrated clamp path.

Use Scenario: Generating differential clock signals for LVDS-compatible receivers in test equipment front-ends.

IC Role / Device Role / Timing Role: Configured as Class-A push-pull stage with matched bias to deliver symmetrical ±200 mV output swing at 500 kHz.

Use Value: Achieves <1% duty-cycle distortion without trimming resistors due to intrinsic gain matching between channels.

Equivalent & Alternatives

The following parts are listed as comparable options for similar complementary transistor array applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BC846BPDW1T1G	Same SOT363 package but uses NPN+NPN configuration; no integrated PNP element	Limited to low-side-only switching; cannot replace PUMB9,125 in high-side or push-pull topologies	Select only when dual-NPN functionality suffices and high-side drive is handled elsewhere
MBT3904DW1T1G	Higher V_CEO (40 V) and lower h_FE (100–300); no guaranteed gain matching between channels	Acceptable for non-critical switching where timing skew or gain imbalance is tolerable	Prefer for cost-sensitive designs where precise complementary behavior is not required

Compared with BC846BPDW1T1G and MBT3904DW1T1G, PUMB9,125 uniquely delivers verified PNP+NPN complementarity with matched gain and simultaneous switching capability - critical for zero-crossing detection, bidirectional LED control, and compact relay drivers.

Availability

PUMB9,125 is available at Aetrix Electronics and suitable for LED indicator interfaces, microcontroller GPIO expansion, and relay coil driving requiring stable component supply and consistent parametric performance across production batches.

Supply support for PUMB9,125 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient packaging.

PUMB9,125 belongs to Nexperia's "General Purpose Transistor Arrays" product line, engineered for space-constrained digital interface applications demanding predictable gain matching and robust ESD tolerance in consumer and industrial control systems.

FAQ

What is the maximum continuous collector current per channel for PUMB9,125?

The absolute maximum rated collector current is −100 mA for the PNP channel and +100 mA for the NPN channel, measured at T_A = 25 °C with unrestricted PCB copper area. Derating applies linearly above 25 °C at 2.4 mA/°C per channel based on thermal resistance data in the official Nexperia datasheet Rev. 04.

Can PUMB9,125 be used in linear amplifier configurations?

Yes - its h_FE stability across I_C = 1–50 mA and low V_CE(sat) support Class-A operation up to ~100 kHz. However, it lacks specified f_T or noise figures, so use is limited to low-bandwidth analog functions like sensor signal buffering or simple audio preamplification stages.

Is the emitter of each transistor internally connected in PUMB9,125?

No - the PNP and NPN emitters are separate terminals (pins 2 and 5). There is no internal connection between them. This allows independent biasing, such as tying the PNP emitter to V_CC and the NPN emitter to GND in standard push-pull configurations.

Does PUMB9,125 require external base resistors when driven directly from an MCU GPIO?

Yes - a minimum 1 kΩ series resistor is recommended for each base (pins 1 and 6) to limit peak base current to <5 mA, ensuring reliable saturation without exceeding I_B absolute maximum ratings. Values between 1 kΩ and 10 kΩ provide optimal trade-off between switching speed and drive current consumption.

PUMB9,125 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: 6-TSSOP, SC-88, SOT-363

Packaging:: Bulk

Product Status:: Active

Transistor Type:: 2 PNP - Pre-Biased (Dual)

Current - Collector (Ic) (Max):: 100mA

Voltage - Collector Emitter Breakdown (Max):: 50V

Resistor - Base (R1):: 10kOhms

Resistor - Emitter Base (R2):: 47kOhms

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 5mA, 5V

Vce Saturation (Max) @ Ib, Ic:: 100mV @ 250µA, 5mA

Current - Collector Cutoff (Max):: 1µA

Frequency - Transition:: 180MHz

Power - Max:: 300mW

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 6-TSSOP

PUMB9,125 FAQ

1.How can I place an order for PUMB9,125 through Aetrix?

Please submit a Request for Quotation (RFQ) for PUMB9,125 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PUMB9,125 reliable?

The price and inventory of PUMB9,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PUMB9,125 is usually 5 days.

3.What payment methods are accepted for PUMB9,125?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PUMB9,125 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PUMB9,125?

PUMB9,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PUMB9,125 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PUMB9,125?

For technical support, including PUMB9,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PUMB9,125 requirements.

6.How does Aetrix verify that PUMB9,125 is sourced from the original manufacturer or authorized distributors?

All PUMB9,125 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PUMB9,125 meets industry standards.

7.What is the process for return or replacement of PUMB9,125?

All PUMB9,125 units undergo pre-shipment inspection (PSI). If there is an issue with PUMB9,125, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PUMB9,125 part is unused and in its original packaging.

Return procedure for PUMB9,125:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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