ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V SOT23-3
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Resistors Included：R1 and R2
- Transistor Type：PNP - Pre-Biased
- Current - Collector (Ic) (Max)：100 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：22 kOhms
- Resistor - Emitter Base (R2)：47 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：80 @ 5mA, 10V
- Vce Saturation (Max) @ Ib, Ic：250mV @ 1mA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：-
- Power - Max：246 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3 (TO-236)
Download product information
Overview
The MMUN2134LT1 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 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 resistors are R1 = 22 kOhms and R2 = 47 kOhms, yielding a ratio of 0.47. The DC current gain (hFE) has a minimum value of 80.
Feature Summary
- Integrates a single PNP transistor with a monolithic bias network to replace discrete components.
- Reduces board space and component count by combining the transistor and two resistors into one device.
- SOT-23 package features modified gull-winged leads designed to absorb thermal stress during wave or reflow soldering.
Applications
- Replacing single devices and external resistor bias networks in circuit designs.
- Low power surface mount applications requiring simplified circuit design.
Procurement Notes
Verify the specific ordering suffix for packaging requirements. The LT1 suffix indicates availability in tape and reel format with a standard quantity of 3000 units. Confirm RoHS compliance status if lead-free materials are required for the assembly process. Check the manufacturer's documentation for any updates regarding the preferred device status or marking codes.
Selection Notes
Select this component when a PNP digital transistor with a 22 kOhm series base resistor and 47 kOhm base-emitter resistor is needed. Ensure the application operates within the 50 V collector-emitter voltage limit and 100 mA continuous current rating. Consider the SOT-23 package dimensions and thermal resistance characteristics for heat dissipation planning in the final design.
Part Context
This part belongs to the MMUN21xxLT1 Series of Bias Resistor Transistors. The series includes various PNP configurations with different internal resistor values, all sharing the same SOT-23 package and general electrical ratings. The MMUN2134 variant specifically provides the 22k/47k resistor combination.
Replacement Considerations
Compatible substitutes within the same family include MMUN2134LT1G, which denotes a lead-free package version. Other variants in the series share the same package but differ in internal resistor ratios and current gain specifications.
