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Product Detailed Parameters
- Description：TRANS BRT NPN 50V SS MONO SOT323
- Series：-
- Mfr：onsemi
- Package：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)：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：310 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 MUN5211T1 is an NPN silicon Bias Resistor Transistor (BRT) from onsemi, housed in a surface-mount SC-70/SOT-323 package. It integrates a single 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-base voltage of 50 Vdc, and a collector-emitter voltage of 50 Vdc. The device features a minimum DC current gain of 35 at 5.0 mA and 10 V. Thermal characteristics specify a total device dissipation of 202 mW at 25°C ambient temperature.
Feature Summary
- Integrates a single NPN transistor with a monolithic bias network containing a series base resistor and a base-emitter resistor to replace external components.
- Designed for low power surface mount applications using the SC-70/SOT-323 package, which supports wave or reflow soldering methods.
Applications
- Level shifting between 12V/24V circuits and logic levels
- Open collector inverter configurations
- Unregulated current source implementations
Procurement Notes
Verify component authenticity by checking the marking code '8A' against official documentation. Confirm the presence of the Pb-free symbol if environmental compliance is required. Ensure ordering suffixes match specific packaging requirements such as tape and reel quantities. Cross-reference datasheet revisions to confirm parameter consistency before finalizing procurement specifications.
Selection Notes
Select this component when circuit design requires simplification through integrated biasing networks. The SC-70/SOT-323 package is suitable for space-constrained layouts. Verify that the 100 mA collector current and 50 V voltage ratings meet the application's operational limits. Consider the thermal resistance values for heat dissipation planning in enclosed environments.
Part Context
This part belongs to the MUN5211T1 Series of NPN Silicon Surface Mount Transistors with Monolithic Bias Resistor Networks. The series includes variants with different resistor ratios, such as the MUN5212T1 and MUN5213T1, offering flexibility for various biasing needs within the same package footprint.
Replacement Considerations
Direct substitutes within the same series include MUN5211T1G for lead-free compliance. Other series members like MUN5212T1 or MUN5213T1 may serve as alternatives if different internal resistor values are acceptable for the specific circuit design.
FAQ
What is the marking code for the MUN5211T1?
The device marking code for the MUN5211T1 is '8A'.
What is the typical input resistor configuration for this device?
The MUN5211T1 contains a series base resistor (R1) of 10 kOhms and a base-emitter resistor (R2) of 10 kOhms.
Can the SC-70/SOT-323 package be soldered using wave soldering?
Yes, the modified gull-winged leads of the SC-70/SOT-323 package are designed to absorb thermal stress during both wave and reflow soldering processes.
