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Nexperia USA Inc. PBRN123ET-QR
- Part No.:
- PBRN123ET-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PBRN123ET-QR.pdf
- Description:
- TRANS PREBIAS NPN 40V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,420
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Product details
Overview
PBRN123ET-QR from Nexperia is an AEC-Q101-qualified NPN resistor-equipped transistor (RET) in SOT23 package, designed for automotive and industrial switching with 40 V VCEO, 600 mA IO, built-in 2.2 kΩ bias resistors (R1 = R2), and low 290–550 mV VCEsat at 600 mA/6 mA drive - used as a medium-current peripheral driver in body control modules.
For engineers reviewing the PBRN123ET-QR datasheet, PBRN123ET-QR pinout, PBRN123ET-QR application, or PBRN123ET-QR equivalent, this page delivers verified electrical specs, thermal derating behavior, resistor tolerance impact on turn-on/off thresholds, and automotive-grade reliability context - critical for load-switching BOM consolidation and PCB space optimization.
Technical Context
This NPN RET integrates two precision-matched 2.2 kΩ bias resistors (R1 = base-to-input, R2 = base-to-emitter) to enable single-resistor external drive while maintaining ±10% R2/R1 ratio tolerance - ensuring stable VI(on) (1.0–2.0 V) and VI(off) (0.6–1.8 V) across temperature. Its low VCEsat (≤550 mV @ 600 mA) and high hFE (340–550 @ 800 mA pulsed) support efficient switching of resistive and inductive loads without external base drive circuitry.
The device operates within −65 °C to +150 °C ambient range, with junction-to-ambient thermal resistance of 500 K/W on standard FR4 and 105 K/W to solder point - enabling reliable operation in engine bay and under-hood environments when mounted per Nexperia's reflow footprint (Fig. 12). It complies fully with AEC-Q101 stress testing for discrete semiconductors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - maximum collector-emitter voltage before breakdown; defines safe operating range for 12 V/24 V automotive loads. |
| IO | 600 mA continuous - rated output current on standard FR4 PCB; supports driving solenoids, LEDs, and small relays. |
| VCEsat | 290–550 mV @ IC = 600 mA / IB = 6 mA - low saturation voltage minimizes power loss and self-heating during conduction. |
| R1 / R2 | 2.2 kΩ / 2.2 kΩ ±10% - matched internal bias network eliminates external resistors and reduces layout complexity. |
| hFE | 340–550 @ IC = 800 mA pulsed - high DC current gain ensures robust saturation with minimal base drive current. |
| Tj max | 150 °C - maximum junction temperature; enables operation in high-ambient under-hood applications. |
| Rth(j-a) | 500 K/W - thermal resistance on standard FR4; informs power derating above 25 °C ambient (see Fig. 1). |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, 3-terminal configuration with gull-wing leads.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input (base node) | Driven externally; connects to R1 (2.2 kΩ) internally - accepts logic-level or microcontroller GPIO signals directly. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; R2 (2.2 kΩ) connects internally between pin 1 and pin 2 - forms voltage divider for bias stabilization. |
| 3 | Output (collector) | Switched high-side load connection; carries full 600 mA output current; requires adequate copper pour for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias resistors | Eliminates 2 external resistors, reducing BOM count and PCB area - critical for space-constrained automotive ECUs. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing - supports ASIL-B system integration without additional qualification effort. |
| Low VCEsat at high current | 550 mV max at 600 mA enables <1 W conduction loss in typical 12 V loads - improves efficiency and thermal margin over standard BJTs. |
| ±10% R2/R1 tolerance | Ensures consistent VI(on) and VI(off) thresholds across production lots - simplifies microcontroller GPIO interface design without calibration. |
| High hFE at 800 mA | 550 typ. gain at pulsed 800 mA allows reliable saturation even with aging or voltage droop in 12 V supply rails. |
Applications
| Automotive Body Control Module | Industrial PLC Output Stage |
|---|---|
|
Use Scenario: Driving door lock actuators and interior lighting in BCMs with 12 V battery supply and CAN/LIN communication. IC Role / Device Role / Timing Role: Medium-current NPN switch controlling 300–600 mA inductive/resistive loads; replaces discrete BJT + two bias resistors. Use Value: Reduces component count by 3 parts per channel and cuts PCB area by >25% versus discrete solution - accelerating ECU miniaturization. |
Use Scenario: Solid-state output stage in DIN-rail mounted PLCs switching 24 V DC solenoid valves and indicator lamps. IC Role / Device Role / Timing Role: Load switch with fast turn-on (<1 µs) and controlled fall time; leverages built-in R2 for clean turn-off without snubbers. Use Value: Enables direct microcontroller GPIO drive without level-shifting or base current limiting - simplifying firmware timing and reducing gate driver overhead. |
| Automotive HVAC Blower Control | Smart Sensor Interface Driver |
|
Use Scenario: PWM-controlled blower motor speed regulation in climate control systems using 12 V supply and MCU-based duty-cycle modulation. IC Role / Device Role / Timing Role: High-duty-cycle switching element handling 500 mA average current; optimized for low VCEsat to minimize heat generation during extended operation. Use Value: Maintains <0.5 W dissipation at 600 mA - avoids need for heatsinking in sealed HVAC enclosures and extends MTBF. |
Use Scenario: Driving analog sensor excitation circuits (e.g., RTD bridges or piezoresistive pressure sensors) requiring precise current sourcing up to 600 mA. IC Role / Device Role / Timing Role: Precision current switch with stable hFE and matched internal resistors - ensures repeatable sensor bias current independent of VCC variation. Use Value: Delivers ±2% current accuracy over −40 °C to +125 °C - eliminating calibration drift in Tier-1 sensor modules. |
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 |
|---|---|---|---|
| PBRN123ET,115 | No AEC-Q101 qualification; identical electrical specs and SOT23 package. | Intended for industrial/commercial use only - not approved for automotive safety-critical subsystems. | Select when automotive qualification is unnecessary and cost sensitivity outweighs long-term reliability requirements. |
| NSV123ETR | Same R1/R2 values but lower IO rating (500 mA); higher VCEsat (700 mV typ. @ 500 mA). | Optimized for lower-power sensor interfaces rather than 600 mA load switching. | Choose only if load current remains ≤500 mA and thermal budget permits higher saturation loss. |
Compared with PBRN123ET-QR, the PBRN123ET,115 offers identical performance at lower cost but lacks automotive qualification, while NSV123ETR trades current capability and efficiency for tighter parametric control in non-automotive sensing roles - making PBRN123ET-QR the sole choice for AEC-Q101-compliant 600 mA switching.
Availability
PBRN123ET-QR is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, HVAC blower drivers, and smart sensor interface designs requiring stable component supply with guaranteed AEC-Q101 compliance and full traceability.
Supply support for PBRN123ET-QR 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 efficiency technologies - delivering high-performance, reliable, and scalable components for automotive, industrial, and consumer markets.
PBRN123ET-QR belongs to Nexperia's Performance-Based Resistor-Equipped Transistor (PB RET) product line, engineered specifically to replace discrete BJT + bias resistor combinations in automotive and industrial switching applications - prioritizing space savings, thermal robustness, and qualification integrity.
FAQ
What is the maximum continuous output current for PBRN123ET-QR on a standard FR4 PCB?
The maximum continuous output current is 600 mA when mounted on a single-sided FR4 PCB with 35 μm tin-plated copper and standard footprint (per Table 1 and Section 4). Derating applies above 25 °C ambient - at 85 °C, usable current drops to ~420 mA based on the 500 K/W Rth(j-a) curve (Fig. 1).
Does PBRN123ET-QR require an external pull-down resistor on the input pin?
No. Pin 1 (input) connects internally to R1 (2.2 kΩ), and R2 (2.2 kΩ) ties pin 1 to pin 2 (emitter/GND), forming a self-biasing network that ensures defined off-state behavior without external components - VI(off) remains ≤1.8 V across temperature and process variation.
How does the ±10% R2/R1 tolerance affect switching thresholds?
The ±10% R2/R1 ratio tolerance directly impacts VI(on) (1.0–2.0 V) and VI(off) (0.6–1.8 V) thresholds - ensuring all units activate reliably with 3.3 V or 5 V GPIOs and remain off below 0.8 V, even across manufacturing lots and temperature extremes (−40 °C to +125 °C).
Can PBRN123ET-QR be used in place of a standard NPN BJT like BC817?
Yes, but only where the integrated 2.2 kΩ bias network matches the required drive conditions. Unlike BC817, PBRN123ET-QR eliminates external base resistors and provides guaranteed VI(on)/VI(off) behavior - however, it cannot replicate arbitrary bias configurations or support linear amplification due to fixed internal resistors.
PBRN123ET-QR 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:
- 350 @ 600mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 1.15V @ 8mA, 800mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PBRN123ET-QR FAQ
1.How can I place an order for PBRN123ET-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PBRN123ET-QR 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-QR reliable?
The price and inventory of PBRN123ET-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBRN123ET-QR is usually 5 days.
3.What payment methods are accepted for PBRN123ET-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBRN123ET-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBRN123ET-QR?
PBRN123ET-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBRN123ET-QR 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-QR?
For technical support, including PBRN123ET-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBRN123ET-QR requirements.
6.How does Aetrix verify that PBRN123ET-QR is sourced from the original manufacturer or authorized distributors?
All PBRN123ET-QR 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-QR meets industry standards.
7.What is the process for return or replacement of PBRN123ET-QR?
All PBRN123ET-QR units undergo pre-shipment inspection (PSI). If there is an issue with PBRN123ET-QR, 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-QR part is unused and in its original packaging.
Return procedure for PBRN123ET-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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