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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SC70-3
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Bulk
- 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)：4.7 kOhms
- Resistor - Emitter Base (R2)：4.7 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：15 @ 5mA, 10V
- Vce Saturation (Max) @ Ib, Ic：250mV @ 1mA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：-
- Power - Max：202 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-70, SOT-323
- Supplier Device Package：SC-70-3 (SOT323)
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Overview
The MUN5232T1 is an NPN Bias Resistor Transistor (BRT) from the MUN5211T1 series, manufactured by onsemi. It integrates a single transistor with a monolithic bias network consisting of two resistors: a series base resistor and a base-emitter resistor. The device features a collector-emitter voltage (VCEO) of 50 Vdc and a continuous collector current (IC) of 100 mAdc. Typical internal resistance values are R1 = 4.7 kOhms and R2 = 4.7 kOhms. It operates within a temperature range of -55°C to +150°C and is housed in the SC-70/SOT-323 package.
Feature Summary
- Integrates a single NPN transistor with a monolithic bias network containing a series base resistor and a base-emitter resistor.
- Designed to replace discrete devices and external resistor bias networks, reducing system cost and board space.
- SC-70/SOT-323 package designed for low power surface mount applications with modified gull-winged leads to absorb thermal stress during soldering.
Applications
- Level shifting between 12 or 24 Volt circuits and logic levels
- Open collector inverter configurations
- Unregulated current source implementations
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm package type and environmental compliance. Confirm that the requested part number matches the exact electrical characteristics required for the application. Check for any automotive qualification requirements if applicable to the end-use environment.
Selection Notes
Select this component when a compact solution is needed to drive NPN switching loads without external biasing resistors. Ensure the required input resistance ratio aligns with the 4.7k/4.7k configuration. Verify that the 50V collector-emitter voltage rating meets the circuit's maximum operating voltage constraints.
Part Context
This component belongs to the MUN5211T1 series of NPN Silicon Surface Mount Transistors with Monolithic Bias Resistor Networks. The series includes various resistor combinations tailored for different logic interface needs while maintaining the same physical footprint and core transistor specifications.
Replacement Considerations
MUN5232T1G serves as the lead-free equivalent within the same series. Other BRTs in the series may be considered if different resistor ratios are acceptable for the design.
