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Product Detailed Parameters
- Description：TRANS PREBIAS PNP 50V SSSMINI3
- Series：-
- Mfr：Panasonic Electronic Components
- Package：Tape & Reel (TR),Cut Tape (CT)
- Resistors Included：R1 Only
- Transistor Type：PNP - Pre-Biased
- Current - Collector (Ic) (Max)：80 mA
- Voltage - Collector Emitter Breakdown (Max)：50 V
- Resistor - Base (R1)：10 kOhms
- Resistor - Emitter Base (R2)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：160 @ 5mA, 10V
- Vce Saturation (Max) @ Ib, Ic：250mV @ 300µA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：80 MHz
- Power - Max：100 mW
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SOT-723
- Supplier Device Package：SSSMini3-F1
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Overview
The UNR31A500L is a silicon PNP epitaxial planar transistor with built-in resistors, designed for digital circuits. It features a collector-emitter breakdown voltage of -50 V and a maximum collector current of -80 mA. The device includes an internal base resistor (R1) of 10 kΩ and operates within a junction temperature range up to 125 °C. Packaged in the SSSMini3-F1 surface-mount format, it offers a transition frequency of 80 MHz and a total power dissipation of 100 mW at 25 °C.
Feature Summary
- Integrates a 10 kΩ base resistor to simplify circuit design and reduce component count.
- Utilizes the compact SSSMini3-F1 package to support high-density mounting and equipment downsizing.
- Optimized for low power consumption in standard digital logic applications.
Applications
- General-purpose digital logic circuits
- Switching applications in office equipment
- Signal processing in communications equipment
- Control circuits in measuring instruments
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm exact electrical tolerances and packaging specifications. Confirm the current lifecycle status directly with Panasonic Industry, as this component may be subject to maintenance or discontinuation schedules that affect long-term availability.
Selection Notes
Select this component when a pre-biased PNP transistor is required for space-constrained digital designs. Ensure the 10 kΩ internal base resistance aligns with the driving source requirements. Verify that the -80 mA collector current limit and 100 mW power dissipation are sufficient for the intended load conditions.
Part Context
This part belongs to the UNR31 series of transistors with built-in resistors manufactured by Panasonic Industry. These components are engineered specifically for use in digital circuits where simplified biasing networks and reduced board space are critical design factors.
Replacement Considerations
Consult the official Panasonic Industry replacement list for verified substitute part numbers. Do not assume functional equivalence with other generic pre-biased transistors without verifying pinout compatibility and electrical parameter alignment.
FAQ
What is the value of the internal base resistor?
The internal base resistor (R1) has a nominal value of 10 kΩ, with a tolerance range of -30% to +30%.
What is the maximum collector current rating?
The absolute maximum collector current (IC) is rated at -80 mA.
Is this component suitable for automotive safety applications?
No. The datasheet specifies that these products are intended for standard applications such as office and household equipment, not for special applications like automobiles or life support systems.
