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Product Detailed Parameters
- Description：SMALL SIGNAL BIPOLAR TRANSISTOR
- Series：*
- Mfr：onsemi
- Package：Bulk
- Resistors Included：-
- Transistor Type：-
- Current - Collector (Ic) (Max)：-
- Voltage - Collector Emitter Breakdown (Max)：-
- Resistor - Base (R1)：-
- Resistor - Emitter Base (R2)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Vce Saturation (Max) @ Ib, Ic：-
- Current - Collector Cutoff (Max)：-
- Frequency - Transition：-
- Power - Max：-
- Grade：-
- Qualification：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
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Overview
The SMUN2113T1 is a PNP Bias Resistor Transistor (BRT) manufactured by onsemi, housed in an SOT-323 (SC-70) surface-mount package. It integrates a single PNP transistor with a monolithic bias network consisting of two resistors: a series base resistor and a base-emitter resistor. Key electrical parameters include a maximum collector current of 100 mA, a collector-emitter voltage rating of 50 V, and a maximum power dissipation of 310 mW. The device features a typical input resistance of 22 kΩ, a typical resistor ratio of 1, and operates at temperatures up to +150 °C.
Feature Summary
- Integrates a PNP transistor with a monolithic bias network containing series base and base-emitter resistors to replace discrete components.
- Designed for space-constrained applications through compact SOT-323 (SC-70) surface-mount packaging.
- Supports high-temperature operation with a maximum junction temperature rating of +150 °C.
Applications
- Switching circuits requiring integrated biasing
- Logic interface level shifting
- Driver stages for low-power loads
Procurement Notes
Verify the specific suffix 'T1' against official datasheets to confirm tape-and-reel packaging quantities and orientation. Ensure the component meets RoHS compliance requirements for the target assembly process. Cross-reference the SC-70 footprint dimensions with PCB layout guidelines to prevent soldering defects during placement.
Selection Notes
Select this component when a PNP configuration with built-in biasing is required for simplified circuit design. Compare the 22 kΩ input resistance against other BRT variants if specific base drive currents are critical. Evaluate the 310 mW power dissipation limit against thermal constraints in dense PCB layouts.
Part Context
This part belongs to the MUN21xx series of digital transistors from onsemi, which standardizes pre-biased NPN and PNP options. These devices streamline designs by eliminating external bias resistors, reducing board space and assembly steps compared to discrete transistor solutions.
Replacement Considerations
Publicly confirmed substitute part numbers for SMUN2113T1 were not identified in the provided documentation. Verify compatibility with alternative BRTs based on matching pinout, voltage ratings, and internal resistor values before substitution.
