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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V 0.1A SC59
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Resistors Included：R1 and R2
- Transistor Type：NPN - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：10 kOhms
- Resistor - Emitter Base (R2)：10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：35 @ 5mA, 10V
- Vce Saturation (Max) @ Ib, Ic：250mV @ 300µA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：-
- Power - Max：230 mW
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SC-59
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Overview
The SMUN2211T1G is a PNP Bias Resistor Transistor (BRT) manufactured by onsemi. It integrates a single PNP transistor with a monolithic bias network consisting of two resistors: a series base resistor (R1) and a base-emitter resistor (R2). Both resistors have a resistance value of 10 kΩ, resulting in a bias resistor ratio of 1. The device features a maximum collector current (IC) of 100 mA and a maximum collector-emitter voltage (VCEO) of 50 V. It is housed in the SC-59 (SOT-23) surface-mount package.
Feature Summary
- Integrates a PNP transistor with dual monolithic bias resistors to replace discrete components
- Designed to simplify circuit design and reduce board space requirements
- Suitable for low-power surface mount applications
Applications
- General-purpose switching circuits
- Driver circuits for logic interfaces
- Replacement for discrete BJT bias networks
Procurement Notes
Verify the specific suffix against official documentation to confirm pinout orientation and internal resistor values. Ensure the ordering code matches the required PNP configuration and that the SC-59 package dimensions align with the target PCB footprint. Confirm RoHS compliance status through the manufacturer's latest release notes.
Selection Notes
Select this component when a PNP digital transistor with equal base and base-emitter resistors is required. Verify that the 100 mA continuous collector current and 50 V breakdown voltage meet the system's electrical demands. Compare the integrated solution against discrete designs to evaluate potential reductions in bill of materials and assembly complexity.
Part Context
This component belongs to the MUN2211 family of Bias Resistor Transistors from onsemi. These devices are engineered to consolidate multiple discrete parts into a single surface-mount package. The family includes variations with different resistor ratios and NPN configurations, providing standardized solutions for common biasing needs in consumer and industrial electronics.
Replacement Considerations
Direct substitutes include other PNP BRTs with identical 10k/10k resistor ratios and SC-59 packaging, such as the MUN2211T1G or equivalent offerings from other manufacturers like ROHM or Diodes Inc., provided pinouts match.
