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Product Detailed Parameters
- Description：TRANS PREBIAS NPN 50V SC70-3
- 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：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 onsemi MUN5211T1G is a single NPN Bias Resistor Transistor (BRT) housed in an SOT-323 (SC-70) surface-mount package. It integrates a monolithic bias network consisting of a 10 kΩ series base resistor and a 10 kΩ base-emitter resistor with the transistor. Key electrical ratings include a maximum collector-emitter voltage (VCEO) of 50 V, a continuous collector current (IC) of 100 mA, and a total power dissipation (PD) of 202 mW at 25°C ambient temperature. The device operates within a junction temperature range of -55°C to +150°C.
Feature Summary
- Integrates a single NPN transistor with a dual-resistor bias network to replace discrete components.
- Simplifies circuit design by eliminating external biasing resistors.
- Reduces printed circuit board space and component count.
Applications
- General-purpose switching applications
- Driver circuits for logic interfaces
- Low-power surface mount designs
Procurement Notes
Verify the specific suffix 'T1G' to confirm the tape-and-reel packaging format and lead-free compliance status. Ensure the ordering part number matches the required resistance values and package type exactly. Cross-reference the manufacturer's latest datasheet for any updates regarding environmental compliance or pinout configurations before finalizing procurement.
Selection Notes
Select this component when a compact NPN solution with integrated biasing is required. The 10 kΩ/10 kΩ resistor ratio suits standard logic interface applications. Compare against other MUN52xx variants if different resistance ratios or PNP polarity are needed. Verify thermal constraints for high-density PCB layouts due to the small SC-70 footprint.
Part Context
This component belongs to the MUN5211 series of digital transistors from onsemi. These devices are designed to simplify analog and digital circuit designs by combining a transistor and bias resistors into one package. The series offers various resistance combinations and packages to accommodate different design constraints.
Replacement Considerations
Compatible substitutes include the MUN5211DW1T1G (dual version in SOT-363) or other NPN BRTs with identical 10k/10k resistor ratios and 50V/100mA ratings. Verify pin compatibility and thermal characteristics when substituting.
