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 NPN 50V NS-B1
- Series：-
- Mfr：Panasonic Electronic Components
- Package：Tape & Box (TB)
- 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)：1 kOhms
- Resistor - Emitter Base (R2)：10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce：30 @ 5mA, 10V
- Vce Saturation (Max) @ Ib, Ic：250mV @ 300µA, 10mA
- Current - Collector Cutoff (Max)：500nA
- Frequency - Transition：150 MHz
- Power - Max：300 mW
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：3-SIP
- Supplier Device Package：NS-B1
Download product information
Overview
The UNR421900A is a silicon NPN epitaxial planar transistor with built-in resistors, designed for digital circuits. It features a collector-emitter voltage of 50 V and a collector current rating of 100 mA. The device includes an internal base resistor (R1) of 1 kΩ and an emitter resistor (R2) of 10 kΩ. It operates within a junction temperature range of -55°C to +150°C and dissipates up to 300 mW of power. Transition frequency reaches 150 MHz.
Feature Summary
- Integrates base and emitter resistors to reduce component count and equipment size
- Utilizes the NS-B1 package for radial taping supply compatibility
Applications
- Digital circuit switching applications
- General electronic equipment
- Office equipment
- Communications equipment
Procurement Notes
Verify the specific suffix against official Panasonic Industry documentation before procurement. Confirm that the requested part number matches the exact resistance values and package type required for the design. Check for any lifecycle status updates or discontinuation notices directly from the manufacturer's official channels to ensure availability.
Selection Notes
Select this component when a compact NPN solution with integrated biasing is needed for digital logic interfaces. Ensure the application does not exceed the absolute maximum ratings for voltage, current, or power dissipation. Verify that the transition frequency meets the signal speed requirements of the target circuit design.
Part Context
This component belongs to the UNR421x series of transistors with built-in resistors manufactured by Panasonic Electronic Components. The series offers various resistor combinations tailored for different digital circuit needs. The UNR4219 variant specifically provides a 1 kΩ base resistor and a 10 kΩ emitter resistor configuration.
Replacement Considerations
Consult official Panasonic Industry resources for verified substitute part numbers. Do not assume cross-compatibility with other manufacturers' pre-biased transistors without verifying pinout and electrical specifications.
FAQ
What are the internal resistance values for the UNR4219?
The UNR4219 contains a base resistor (R1) of 1 kΩ and an emitter resistor (R2) of 10 kΩ.
What is the maximum collector-emitter voltage?
The maximum collector-emitter voltage (VCEO) is 50 V.
Is this component suitable for aerospace applications?
No, the datasheet specifies standard applications only and advises consulting sales staff for special applications like aerospace due to reliability requirements.
