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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V SOT23-3
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Bulk
- Resistors Included：R1 and R2
- Transistor Type：PNP - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：22 kOhms
- Resistor - Emitter Base (R2)：47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：80 @ 5mA, 10V
- Vce Saturation (Max) @ Ib, Ic：250mV @ 1mA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：-
- Power - Max：246 mW
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3 (TO-236)
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Overview
The SMMUN2134LT1G-M01 is a single pre-biased PNP bipolar digital transistor (BRT) manufactured by onsemi. It integrates a BJT with internal bias resistors in an SOT-23-3 surface-mount package. Key electrical parameters include a maximum collector-emitter voltage of 50V, continuous collector current of 100mA, and power dissipation of 246mW. The device features a minimum DC current gain (hFE) of 80 at specified test conditions. It is qualified to AEC-Q101 automotive standards and operates within a temperature range of -55°C to +150°C.
Feature Summary
- Integrated pre-biased design combining a PNP transistor with internal base resistors for simplified circuit topology.
- Automotive-grade qualification ensuring reliability under harsh environmental conditions.
- Compact SOT-23-3 surface-mount packaging suitable for space-constrained applications.
Applications
- Switching applications in automotive electronic control units
- Load switching in industrial control systems
- General-purpose digital switching in consumer electronics
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific suffix matches the required automotive grade specifications. Check for obsolescence status as this part may be discontinued. Ensure storage conditions comply with moisture sensitivity levels defined in the datasheet. Validate that the received components match the exact part number including all alphanumeric suffixes.
Selection Notes
Select this component when a single PNP digital transistor with integrated biasing is required for automotive or industrial switching. Consider the 50V voltage rating and 100mA current capacity against load requirements. Evaluate the SOT-23-3 footprint constraints against available PCB space. Compare thermal performance characteristics against expected power dissipation in the target application environment.
Part Context
This component belongs to onsemi's MMUN series of pre-biased bipolar transistors designed for high-reliability applications. The series offers various resistor configurations and transistor polarities. The SMMUN variant specifically denotes automotive-grade qualification. These devices replace discrete resistor-transistor networks, reducing board space and assembly complexity while maintaining consistent electrical performance across production batches.
Replacement Considerations
Public confirmed substitute part numbers are not provided in the source material. Verify compatibility with alternative BRTs based on pinout, voltage ratings, and current capabilities. Consult official replacement guides from onsemi for end-of-life notifications.
