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NUD3124LT1G Inductive Load Switch IC NUD3124 SERIES Automotive Inductive Load Driver
—-NUD3124LT1G Power Switch/Driver 1:1 N-Channel 150mA SOT-23-3 (TO-236)
1. Product Overview
NUD3124LT1G is an N-channel MOSFET load driver produced by ON Semiconductor, using SOT-23-3 (SC-59) surface mount package. The device is designed for driving inductive loads (such as relays, solenoids, small DC motors), with an integrated Zener diode, and no external freewheeling diode is required. It is suitable for automotive electronics, industrial control and consumer electronics.
Switch Type: Relay, Solenoid Driver
Number of Outputs: 1
Ratio – Input:Output: 1:1
Output Configuration: Low Side
Output Type: N-Channel
Interface: On/Off
Voltage – Load: 28V (Max)
Voltage – Supply (Vcc/Vdd): Not Required
Current – Output (Max): 150mA
Rds On (Typ): 800mOhm (Max)
Input Type: –
Features: –
Fault Protection: –
Operating Temperature: -40°C ~ 125°C (TA)
Mounting Type: Surface Mount
Supplier Device Package: SOT-23-3 (TO-236)
Package / Case: TO-236-3, SC-59, SOT-23-3
Base Product Number: NUD3124
2. Core Features
Electrical Performance
1. Input/output ratio: 1:1
2. Maximum load voltage: 28V
3. Maximum output current: 150mA
4. On-resistance: 800mΩ (typical value)
5. Operating temperature range: -40°C ~ 125°C (TA)
Packaging and Installation
1. Package type: SOT-23-3 (compact surface mount package, size 2.9mm × 1.3mm × 0.94mm)
2. Mounting method: surface mount technology (SMT)
Functional Advantages
1. Integrated protection: built-in Zener diode, no external freewheeling diode required, simplifying circuit design.
2. Logic level compatibility: accepts standard logic level input (such as 3.3V/5V), can be directly driven by microcontroller or logic gate.
3. Single component solution: replace traditional discrete components (such as transistor + diode + resistor), saving PCB space.
III. Application fields
1. Automotive electronics: body control module (BCM), lighting system, relay drive, solenoid valve control.
2. Industrial control: motor drive, automation equipment, electromagnetic switch, small DC motor control.
3. Consumer electronics: inductive load drive in household appliances (such as washing machines, air conditioners).
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