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Product Detailed Parameters
- Description：TRANS BRT PNP 100MA 50V SOT23
- Series：*
- Mfr：onsemi
- Package：Cut Tape (CT),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 MMUN2114LT1G is a PNP Bias Resistor Transistor (BRT) from onsemi, housed in an SOT-23 package. It integrates a single transistor with a monolithic bias network consisting of a series base resistor and a base-emitter resistor. Key electrical parameters include a maximum collector-emitter voltage (VCEO) of 50 Vdc, a continuous collector current (IC) of 100 mAdc, and a total device power dissipation (PD) of 246 mW at 25°C. The typical input resistance (R1) is 10 kOhms, with a typical resistor ratio (R1/R2) of 0.21. The DC current gain (hFE) has a minimum value of 80.
Feature Summary
- Integrates a single PNP transistor with a monolithic bias network containing two resistors to replace individual components.
- Designed for low power surface mount applications using the SOT-23 package.
- Modified gull-winged leads absorb thermal stress during wave or reflow soldering.
Applications
- Circuit design simplification by reducing component count.
- Applications requiring reduced board space.
- Low power surface mount systems.
Procurement Notes
Verify the specific ordering suffix when purchasing. The 'LT1' designation indicates standard packaging, while 'LT1G' denotes a lead-free package variant. Confirm the required shipping quantity matches the tape and reel specifications provided in the manufacturer's documentation before placing orders.
Selection Notes
Select this component when a PNP digital transistor with a 10 kOhm series base resistor and a 47 kOhm base-emitter resistor is required. Ensure the application operates within the 50 V collector-emitter voltage limit and 100 mA continuous current rating. Verify that the SOT-23 package dimensions fit the available PCB footprint.
Part Context
This device belongs to the MMUN21xxLT1 Series of preferred devices from onsemi. The series includes various PNP BRTs with different internal resistor configurations. The MMUN2114LT1G specifically features a 10 kOhm R1 and 47 kOhm R2 configuration, distinguishing it from other members like the MMUN2111LT1G which uses equal 10 kOhm resistors.
Replacement Considerations
Direct replacements within the same family include MMUN2114LT3G, which offers identical electrical characteristics but is shipped in 10,000-unit tape and reels instead of 3,000 units.
FAQ
What are the values of the integrated resistors in the MMUN2114LT1?
The device contains a series base resistor (R1) of 10 kOhms and a base-emitter resistor (R2) of 47 kOhms.
How does the MMUN2114LT1 simplify circuit design?
It eliminates the need for external discrete resistors by integrating the bias network directly into the semiconductor die, thereby reducing both system cost and board space.
Is the MMUN2114LT1 available in a lead-free package?
Yes, the MMUN2114LT1G variant is available in a Pb-Free package, as indicated by the 'G' suffix in the ordering information.
