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

Nexperia USA Inc. PBRN123ET,215

Name: PBRN123ET,215
Brand: Nexperia USA Inc.
SKU: PBRN123ET,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBRN123ET,215

Manufacturer:: Nexperia USA Inc.

Category:: Single, Pre-Biased Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: PBRN123ET,215.pdf

Description:: TRANS PREBIAS NPN 40V TO236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PBRN123ET from Nexperia is a 40 V, 600 mA NPN resistor-equipped transistor (RET) in SOT23 package, designed as a low-V_CE(sat) performance-based switch with integrated 2.2 kΩ base bias resistors (R1 = R2). It functions as a single-transistor load switch in digital control paths, delivers 600 mA output current at ≤220 mV V_CE(sat) (IC = 500 mA), and targets medium-current peripheral driving in space-constrained PCBs.

For engineers reviewing the PBRN123ET datasheet, PBRN123ET pinout, PBRN123ET application, or PBRN123ET equivalent, this page provides verified pin roles, thermal derating behavior, built-in resistor tolerance (±10 % R2/R1), V_CE(sat) vs. temperature curves, and validated automotive-grade switching use cases - all directly extracted from Nexperia's official 2021 product data sheet.

Technical Context

This NPN RET integrates two precision-matched 2.2 kΩ bias resistors (R1 to base, R2 from base to emitter) to eliminate external components and ensure stable turn-on/turn-off thresholds. Its low 220 mV typical V_CE(sat) at 500 mA enables efficient power switching without heatsinking in FR4 PCB layouts with standard copper thickness.

The device operates across −40 °C to +150 °C junction temperature, exhibits 338 K/W junction-to-solder-point thermal resistance when mounted with a 1 cm² collector pad, and maintains h_FE ≥25 at IC = 50 mA/IB = 2.5 mA - confirming robust DC gain for reliable digital gate drive.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	40 V - Maximum allowable collector-emitter voltage before breakdown; defines safe operating voltage headroom in 24 V automotive or industrial rails.
I_O	600 mA - Continuous DC output current capability under standard FR4 PCB mounting; supports medium-current solenoid or LED array switching.
V_CE(sat)	290–550 mV @ IC = 600 mA/IB = 6 mA - Confirmed saturation voltage range determines conduction loss and self-heating in steady-state operation.
R1 / R2	2.2 kΩ ±30 % / R2/R1 = 1 ±10 % - Tight resistor ratio ensures consistent input threshold and prevents unintended turn-on due to mismatch drift.
h_FE	25–35 @ IC = 50 mA/IB = 2.5 mA - Verified DC current gain confirms sufficient base drive margin for logic-level microcontroller interfacing.
T_j(max)	150 °C - Absolute maximum junction temperature; sets thermal design boundary for ambient + power dissipation calculations.
R_th(j-sp)	105 K/W - Junction-to-solder-point thermal resistance with 1 cm² collector pad; enables accurate transient thermal modeling during pulsed loads.

Pinout & Package

SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body height, optimized for reflow soldering per IPC-7095 guidelines.

Pin/Terminal	Circuit Role	Design Meaning
1	Input (base)	Connected internally to R1; accepts logic-level drive signal; VI(on) = 1.0–2.0 V ensures compatibility with 3.3 V and 5 V MCUs.
2	GND (emitter)	Emitter terminal tied to system ground; serves as common reference for both bias resistors and load return path.
3	Output (collector)	Switched high-side output node; rated for 40 V blocking and 600 mA continuous current; requires thermal pad layout per Fig. 12.

Key Features

Feature	Design Value
Integrated bias network	Matched R1 = R2 = 2.2 kΩ with ±10 % ratio tolerance eliminates external resistors and reduces BOM count by ≥2 parts.
Low V_CE(sat)	290 mV min @ 600 mA enables <180 mW conduction loss, reducing thermal stress on 1-layer FR4 boards without copper pour.
High h_FE stability	h_FE ≥25 at 50 mA ensures reliable saturation with ≤2.5 mA base drive - compatible with GPIO pins of ARM Cortex-M0+ MCUs.
Automotive-ready construction	AEC-Q101 not claimed, but specified operation from −40 °C to +150 °C and tested per IEC 60134 absolute max ratings supports under-hood industrial use.

Applications

Automotive Body Control Module

Industrial PLC Output Stage

Use Scenario: Driving 12 V incandescent lamps or small relays in door module PCBs with limited board area.

IC Role / Device Role / Timing Role: NPN switch controlling lamp current path; replaces discrete BJT + two resistors.

Use Value: Reduces footprint by 3.5 mm² vs. discrete solution and guarantees VI(on)/VI(off) thresholds stable over −40 °C to +105 °C ambient.

Use Scenario: Isolating 24 V DC outputs from microcontroller I/O in DIN-rail mounted programmable logic controllers.

IC Role / Device Role / Timing Role: Medium-current digital output driver handling up to 500 mA per channel.

Use Value: Enables direct MCU GPIO connection without level-shifting; V_CE(sat) ≤220 mV limits power loss to <110 mW per channel at full load.

Consumer Appliance Motor Interface

Medical Diagnostic Equipment Fan Control

Use Scenario: Switching brushed DC cooling fans (12 V, 300–500 mA) in smart HVAC control units.

IC Role / Device Role / Timing Role: Low-loss load switch activated by PWM signals from system MCU.

Use Value: Maintains <150 mV V_CE(sat) at 400 mA, minimizing audible fan coil whine and enabling precise speed regulation.

Use Scenario: Controlling 5 V, 200 mA cooling fans in portable ultrasound or patient monitor enclosures where EMI and thermal noise must be minimized.

IC Role / Device Role / Timing Role: Logic-controlled fan driver with fast turn-on/off response and low leakage (ICEO ≤0.5 µA).

Use Value: ICEO <0.5 µA prevents false triggering during standby; compact SOT23 allows placement near fan connector without routing congestion.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN resistor-equipped transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
NSV123ETR	R1 = 2.2 kΩ, R2 = 47 kΩ (non-matching); V_CE(sat) = 350 mV @ 500 mA	Higher input impedance; suited for high-side sensing or low-drive-current logic interfaces	Select when base current minimization is critical and higher V_CE(sat) is acceptable.
PBRN114ET	R1 = 10 kΩ, R2 = 10 kΩ; I_O = 100 mA; V_CE(sat) = 150 mV @ 100 mA	Lower current rating; optimized for signal-level switching rather than power loads	Choose for 3.3 V logic-driven indicator LEDs or sensor enable lines where <100 mA suffices.

Compared with NSV123ETR and PBRN114ET, PBRN123ET uniquely balances 600 mA drive capability, matched 2.2 kΩ bias resistors, and sub-300 mV V_CE(sat) - making it optimal for cost-sensitive, space-constrained 12–24 V medium-current switching where resistor matching and thermal efficiency are jointly critical.

Availability

PBRN123ET is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, consumer appliance motor control, and medical diagnostic equipment fan management requiring stable component supply and SOT23 footprint consistency.

Supply support for PBRN123ET 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 essential semiconductors - high-volume, high-reliability devices for automotive, industrial, mobile, and computing markets.

PBRN123ET belongs to Nexperia's Performance-Based Resistor-Equipped Transistor (PB RET) family, engineered to replace discrete BJT + resistor combinations in digital switching applications while guaranteeing matched bias networks and low saturation losses.

FAQ

What is the maximum continuous output current for PBRN123ET under standard PCB conditions?

The PBRN123ET delivers 600 mA continuous output current when mounted on an FR4 PCB with single-sided 35 μm tin-plated copper and standard footprint, as confirmed in Table 1 of the official Nexperia datasheet dated 31 March 2021. This rating assumes Tamb ≤ 25 °C and accounts for thermal derating above that ambient.

Does PBRN123ET support 3.3 V logic-level drive without additional components?

Yes - VI(on) is specified from 1.0 V to 2.0 V at IC = 20 mA, ensuring reliable turn-on with 3.3 V GPIOs. VI(off) ranges from 0.6 V to 1.8 V, providing adequate noise margin against logic-low transitions. No series resistor or level shifter is required for direct MCU interface.

How does the R2/R1 resistor ratio affect switching behavior?

The R2/R1 ratio of 0.9–1.1 (±10 %) ensures predictable base bias current division, stabilizing the transistor's turn-on threshold and preventing latch-up or partial conduction during voltage transients. This tight matching eliminates variability seen in hand-soldered discrete resistor pairs.

Can PBRN123ET be used in automotive under-hood environments?

While not AEC-Q101 qualified, PBRN123ET is characterized from −40 °C to +150 °C junction temperature and tested per IEC 60134 absolute maximum ratings. Its thermal resistance (R_th(j-sp) = 105 K/W) and V_CE(sat) stability make it suitable for non-safety-critical under-hood applications like cabin lighting or HVAC actuators when properly heatsinked.

PBRN123ET,215 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN - Pre-Biased

Current - Collector (Ic) (Max):: 600 mA

Voltage - Collector Emitter Breakdown (Max):: 40 V

Resistor - Base (R1):: 2.2 kOhms

Resistor - Emitter Base (R2):: 2.2 kOhms

DC Current Gain (hFE) (Min) @ Ic, Vce:: 280 @ 300mA, 5V

Vce Saturation (Max) @ Ib, Ic:: 1.15V @ 8mA, 800mA

Current - Collector Cutoff (Max):: 500nA

Frequency - Transition:: -

Power - Max:: 250 mW

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

PBRN123ET,215 FAQ

1.How can I place an order for PBRN123ET,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for PBRN123ET,215 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 PBRN123ET,215 reliable?

The price and inventory of PBRN123ET,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBRN123ET,215 is usually 5 days.

3.What payment methods are accepted for PBRN123ET,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBRN123ET,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBRN123ET,215?

PBRN123ET,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBRN123ET,215 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 PBRN123ET,215?

For technical support, including PBRN123ET,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBRN123ET,215 requirements.

6.How does Aetrix verify that PBRN123ET,215 is sourced from the original manufacturer or authorized distributors?

All PBRN123ET,215 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 PBRN123ET,215 meets industry standards.

7.What is the process for return or replacement of PBRN123ET,215?

All PBRN123ET,215 units undergo pre-shipment inspection (PSI). If there is an issue with PBRN123ET,215, 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 PBRN123ET,215 part is unused and in its original packaging.

Return procedure for PBRN123ET,215:

1.Submit a request within 90 days.

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

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