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Product Detailed Parameters
- Description：MOSFET N-CH 100V 190MA TO92-3
- Series：TrenchMOS™
- Mfr：NXP USA Inc.
- Package：Bulk
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：100 V
- Current - Continuous Drain (Id) @ 25°C：190mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On)：5V
- Rds On (Max) @ Id, Vgs：10Ohm @ 150mA, 5V
- Vgs(th) (Max) @ Id：3.5V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs：-
- Vgs (Max)：20V
- Input Capacitance (Ciss) (Max) @ Vds：40 pF @ 10 V
- FET Feature：-
- Power Dissipation (Max)：830mW (Ta)
- Operating Temperature：150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Supplier Device Package：TO-92-3
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
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Overview
The BST72A,112 is an N-channel enhancement mode vertical D-MOS transistor manufactured by NXP Semiconductors. It is housed in a TO-92 variant envelope and is designed for use in relay drivers, high-speed switching applications, and line-transformer drivers. The device features very low on-resistance and provides direct interface compatibility with CMOS and TTL logic families.
Feature Summary
- Very low RDS(on) for efficient power handling
- Direct interface capability to CMOS and TTL logic
- High-speed switching performance
- Absence of second breakdown effects
Applications
- Relay driver circuits
- High-speed switching applications
- Line-transformer drivers
Procurement Notes
Verify the specific suffix '112' against official NXP documentation to confirm packaging details and tape-and-reel specifications. Ensure the component matches the TO-92 variant envelope description. Cross-reference the manufacturer part number with current datasheets to confirm availability and compliance with relevant standards before procurement.
Selection Notes
Select this component when a robust N-channel MOSFET with low on-resistance is required for driving relays or transformers. Its compatibility with standard logic levels simplifies interface design. Consider the TO-92 package constraints for thermal management and physical space requirements in the target application circuit.
Part Context
The BST72A belongs to a family of N-channel vertical D-MOS transistors from NXP Semiconductors, including variants like BST70A and BST74A. These components share similar functional characteristics but may differ in specific electrical ratings or packaging options. The BST72A is specifically noted for its suitability in high-speed and transformer driver applications.
Replacement Considerations
Potential substitutes within the same family include BST70A and BST74A. Verify pinout compatibility and electrical parameter equivalence before substitution. Other generic N-channel MOSFETs in TO-92 packages may serve as alternatives if they meet the specific voltage and current requirements.
