TMR1302T Low Power Reluctance Switch TO-92S

Description

TMR1302T Low Power Reluctance Switch TO-92S

Description

The TMR1302T is a high-sensitivity linear TMR (Tunnel Magnetoresistance) sensor that detects magnetic field changes with high precision. Packaged in a TO-92S form factor, it is easy to integrate into through-hole PCB designs and commonly used in position sensing, current detection, and proximity sensing applications.

TMR1302T Key Specifications

Type: Tunneling Magnetoresistance (TMR) Hall-Effect Switch  Package: TO-92S (3-pin, straight leads)

1. Electrical Characteristics

• Operating Voltage: 2.5V to 5.5V (low voltage compatible)

• Quiescent Current: 5µA (typical, ultra-low power)

• Output Type: Digital (open-drain)

• Operating Frequency: Up to 1kHz (response time <1ms)

• Output Sink Current: 5mA (max)

2. Magnetic Characteristics

• Operate Point (Bop): ±30 Gauss (typical)

• Release Point (Brp): ±20 Gauss (typical)

• Hysteresis (Bhys): 10 Gauss (typical)

3. Physical Specifications

• Package: TO-92S (similar to TO-92 but with straight pins)

• Pinout:

  1. VCC (Power supply: 2.5V–5.5V)

  2. GND (Ground)

  3. OUT (Open-drain output)

• Operating Temperature: -40°C to +85°C

• Storage Temperature: -50°C to +150°C

4. Key Features

• TMR Technology: Higher sensitivity and stability than traditional Hall-effect sensors.

• Ultra-Low Power: Ideal for battery-powered applications.

• Omnipolar Sensing: Responds to both North and South magnetic poles.

• Built-in Hysteresis: Prevents output oscillation near trigger points.

5. Applications

• Position sensing (e.g., door/window sensors)

• Speed detection (e.g., RPM counters)

• Flow meters

• Battery-powered IoT devices

6. Comparison vs. Traditional Hall Sensors