NXP Semiconductors PBRN123YK,115
- Part No.:
- PBRN123YK,115
- Manufacturer:
- NXP Semiconductors
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PBRN123YK,115.pdf
- Description:
- TRANS PREBIAS NPN 40V 0.6A SMT3
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PBRN123YK,115 from Nexperia is an NPN resistor-equipped transistor (RET) in SOT346 (SC-59A/TO-236) package, designed for medium-current switching with 40 V VCEO, 600 mA continuous output current, and low 25 mV typical VCEsat at 50 mA/2.5 mA drive - used in automotive load control and industrial peripheral drivers.
For engineers reviewing the PBRN123YK,115 datasheet, PBRN123YK,115 pinout, PBRN123YK,115 application, or PBRN123YK,115 equivalent, key selection criteria include built-in R1 = 2.2 kΩ / R2 = 10 kΩ bias network, ±10% resistor ratio tolerance, thermal resistance of 500 K/W on FR4 PCB, and compatibility with reflow soldering per JEDEC J-STD-020.
Technical Context
This BISS (Breakthrough In Small Signal) RET integrates two precision bias resistors to eliminate external base components, enabling direct logic-level drive from microcontrollers or gate drivers. Its internal R1–R2 network sets a fixed 4.55 typ. resistor ratio, supporting stable saturation across temperature.
The device operates as a single-stage NPN switch with defined off-state input voltage (0.6 V typ.) and on-state input voltage (0.8 V typ.), delivering predictable turn-on/turn-off behavior without external bias tuning. It complies with IEC 60134 absolute maximum ratings and supports ambient temperatures from −65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum collector-emitter blocking voltage under open-base condition; defines safe operating voltage for 24 V automotive and industrial bus switching. |
| IO | 600 mA - Continuous DC output current rating; supports driving solenoids, relays, and LED arrays without external heat sinking on standard FR4 PCB. |
| VCEsat @ 50 mA/2.5 mA | 25 mV typ. - Ultra-low saturation voltage reduces conduction loss and self-heating; enables >99% efficiency in low-voltage switching paths. |
| R1 / R2 | 2.2 kΩ / 10 kΩ - Integrated bias resistors eliminate two external components and reduce PCB footprint; R2/R1 = 4.55 typ. ensures consistent gain control. |
| hFE @ 50 mA | 450 typ. - High DC current gain allows low base drive current (e.g., 2.5 mA), easing interface with 3.3 V or 5 V logic outputs. |
| Ptot @ Tamb ≤25 °C | 250 mW - Total power dissipation limit on standard FR4 PCB; derates linearly above 25 °C per published curve (500 K/W Rth(j-a)). |
| Cc | 7 pF - Collector capacitance at 10 V; supports fast switching (ton/toff < 100 ns) in digital control applications without excessive Miller effect. |
Pinout & Package
SOT346 (SC-59A/TO-236) surface-mount plastic package: 3-pin, 1.3 mm max height, 3.0 × 1.7 mm body, gull-wing leads, JEDEC-compliant footprint (reflow soldering pad layout: 1.0 × 0.7 mm lands, 0.95 mm pitch).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | input (base) | Connected internally to R1; accepts logic-level drive (0.6–1.4 V VI(on)/VI(off)); no external base resistor required. |
| 2 | GND (emitter) | Emitter terminal tied to system ground; serves as common reference for both input and output circuits. |
| 3 | output (collector) | Switched high-side output node; carries full load current up to 600 mA; requires proper thermal pad layout for power handling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | R1 = 2.2 kΩ ±30%, R2 = 10 kΩ ±30%, R2/R1 = 4.55 ±10% - eliminates two discrete resistors, reduces BOM count and placement cost. |
| Low VCEsat | 25 mV typ. at IC = 50 mA - minimizes power loss and thermal rise in battery-powered and thermally constrained designs. |
| High hFE | 450 typ. at IC = 50 mA - enables reliable saturation with ≤2.5 mA base current, compatible with GPIOs of most MCUs. |
| Automotive-grade reliability | −65 °C to +150 °C operating range, 150 °C max junction temperature - qualified for under-hood and industrial control environments. |
| Standardized footprint | SOT346 package matches JEDEC TO-236 and JEITA SC-59A - ensures compatibility with existing pick-and-place and reflow processes. |
Applications
| Automotive Load Switching | Industrial Peripheral Driver |
|---|---|
Use Scenario: Controlling 12 V/24 V solenoids, fuel injectors, and HVAC actuators in engine control units and body electronics modules. IC Role / Device Role / Timing Role: Single-stage NPN switch providing logic-compatible on/off control with minimal external components. Use Value: Low 25 mV VCEsat reduces coil heating and improves energy efficiency; integrated bias resistors simplify ECU board layout and reduce assembly cost. |
Use Scenario: Driving optocoupler inputs, relay coils, and small DC motors in PLC I/O modules and sensor interface boards. IC Role / Device Role / Timing Role: Medium-current digital output buffer interfacing microcontroller GPIOs to higher-power loads. Use Value: 600 mA output capability and 450 hFE ensure robust drive margin; SOT346 package supports high-density industrial PCB layouts. |
| LED Array Control | Smart Sensor Interface |
Use Scenario: Switching multi-segment status LEDs and backlight arrays in automotive dashboards and industrial HMIs. IC Role / Device Role / Timing Role: Constant-current-capable switch regulating LED current via external series resistor. Use Value: Tight 4.55 typ. R2/R1 ratio ensures repeatable brightness control; low VCEsat preserves forward voltage headroom for LED strings. |
Use Scenario: Level-shifting and isolating digital signals between low-voltage sensors (e.g., I²C, UART) and host controllers. IC Role / Device Role / Timing Role: Digital signal conditioner providing noise-immune, rail-to-rail switching for sensor data lines. Use Value: Defined VI(on)/VI(off) thresholds (0.8 V / 0.6 V typ.) reject supply ripple and EMI; 7 pF Cc supports >10 MHz digital signaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN RET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSV123YK,115 | Same SOT346 package, identical R1/R2 values and VCEO/IO ratings, but optimized for AEC-Q101 automotive qualification with enhanced ESD robustness (HBM 8 kV). | Preferred for automotive safety-critical modules requiring certified component reliability. | Select NSV123YK,115 when AEC-Q101 compliance is mandatory; otherwise PBRN123YK,115 meets general industrial requirements at lower cost. |
| PDTC123YK,115 | Same footprint and bias network, but lower 300 mA IO rating and higher 50 mV VCEsat typ.; hFE = 300 typ. at 50 mA. | Suitable for low-power indicator and signal routing where thermal margin is less critical. | Choose PDTC123YK,115 only for space-constrained, low-current (<300 mA) applications where cost sensitivity outweighs performance needs. |
Compared with NSV123YK,115 and PDTC123YK,115, PBRN123YK,115 delivers optimal balance of 600 mA drive capability, 25 mV VCEsat, and industrial-grade reliability - making it the preferred choice for mid-power automotive and industrial switching where AEC-Q101 is not mandated.
Availability
PBRN123YK,115 is available at Aetrix Electronics and suitable for automotive load switching, industrial peripheral driver, and LED array control applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for PBRN123YK,115 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 advanced packaging and automotive-qualified components.
The PBRN123YK,115 belongs to Nexperia's BISS RET family, engineered specifically for reducing component count and simplifying digital switching in automotive and industrial control systems.
FAQ
What is the maximum continuous output current rating for PBRN123YK,115?
The PBRN123YK,115 has a maximum continuous output current (IO) of 600 mA under standard FR4 PCB mounting conditions (single-sided copper, tin-plated, standard footprint). This rating drops to 700 mA with enhanced thermal pad layout and 800 mA under pulsed conditions (tp ≤1 ms, duty cycle ≤0.33), as specified in Table 6 of the Nexperia datasheet.
Does PBRN123YK,115 require external base resistors?
No, PBRN123YK,115 does not require external base resistors. It integrates R1 = 2.2 kΩ and R2 = 10 kΩ internally, forming a fixed bias network that enables direct connection to logic outputs. The R2/R1 ratio is 4.55 typ. with ±10% tolerance, ensuring stable saturation behavior without discrete component dependencies.
What is the typical collector-emitter saturation voltage of PBRN123YK,115 at 50 mA load current?
The typical collector-emitter saturation voltage (VCEsat) of PBRN123YK,115 is 25 mV at IC = 50 mA and IB = 2.5 mA, measured at Tamb = 25 °C. This ultra-low value minimizes conduction loss and thermal stress, supporting high-efficiency operation in battery-sensitive and thermally constrained applications.
Which package type does PBRN123YK,115 use, and what are its key mechanical dimensions?
PBRN123YK,115 uses the SOT346 (SC-59A/TO-236) surface-mount package: 3-pin, gull-wing leads, 3.0 mm × 1.7 mm body size, and maximum height of 1.3 mm. Its JEDEC-compliant footprint features 0.95 mm pin pitch and 1.0 mm × 0.7 mm solder pads, optimized for automated reflow assembly per J-STD-020.
Can PBRN123YK,115 be used in automotive applications?
Yes, PBRN123YK,115 is rated for operation from −65 °C to +150 °C ambient temperature and supports junction temperatures up to 150 °C, meeting requirements for under-dash and engine bay environments. While not AEC-Q101 certified, its electrical and thermal specifications align with non-safety-critical automotive subsystems such as lighting controls and HVAC actuators.
PBRN123YK,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 500 @ 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:
- SMT3; MPAK
PBRN123YK,115 FAQ
1.How can I place an order for PBRN123YK,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PBRN123YK,115 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 PBRN123YK,115 reliable?
The price and inventory of PBRN123YK,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBRN123YK,115 is usually 5 days.
3.What payment methods are accepted for PBRN123YK,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBRN123YK,115 transactions.
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4.How is shipping managed for PBRN123YK,115?
PBRN123YK,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBRN123YK,115 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 PBRN123YK,115?
For technical support, including PBRN123YK,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBRN123YK,115 requirements.
6.How does Aetrix verify that PBRN123YK,115 is sourced from the original manufacturer or authorized distributors?
All PBRN123YK,115 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 PBRN123YK,115 meets industry standards.
7.What is the process for return or replacement of PBRN123YK,115?
All PBRN123YK,115 units undergo pre-shipment inspection (PSI). If there is an issue with PBRN123YK,115, 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 PBRN123YK,115 part is unused and in its original packaging.
Return procedure for PBRN123YK,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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