EVQPNF04M

The EVQPNF04M is a 4-channel solid-state relay (SSR) module with the following key features:
- Channels: 4 independent SSR outputs
- Load Voltage: Up to 350V AC/DC per channel
- Load Current: 0.1–2.5A per channel (resistive load)
- Control Input: 3–32V DC (TTL/CMOS compatible)
- Isolation: Optically isolated (1500Vrms) for safety
- Response Time: ≤10ms (ON/OFF)
- Protection: Built-in snubber circuit for inductive loads
- Mounting: DIN rail or screw mounting
- Applications: Industrial automation, HVAC, lighting control
Compact and reliable, it’s ideal for low-to-medium power switching with fast response and noise immunity.

The EVQPNF04M is a 4-pin Hall-effect switch from Allegro MicroSystems.
Pin Functions:
1. VCC (Pin 1): Power supply (3.5V–24V).
2. GND (Pin 2): Ground connection.
3. Output (Pin 3): Open-drain output (active low when magnetic field exceeds threshold).
4. Enable (Pin 4): Optional enable control (pull high for normal operation).
Key Features:
- Omnipolar (responds to N/S magnetic poles).
- Low power consumption.
- Used in position sensing, speed detection, and proximity switching.
Package: QFN (Quad Flat No-Lead).

The EVQPNF04M is a tactile switch commonly used in:
1. Consumer Electronics – Keypads, remote controls, gaming devices.
2. Industrial Controls – Machinery interfaces, control panels.
3. Automotive – Dashboard buttons, infotainment systems.
4. Medical Devices – Equipment controls, diagnostic tools.
5. IoT & Smart Home – Smart switches, sensors.
Its compact size, durability, and tactile feedback make it suitable for applications requiring reliable user input.

The EVQPNF04M is a quad flat no-lead (QFN) package. It features a compact, surface-mount design with exposed pads for improved thermal and electrical performance. The "04M" likely denotes a 4mm × 4mm body size. QFN packages are commonly used for space-constrained applications requiring efficient heat dissipation.