4.3V Zener Diode 1N4731A (5 Pcs)
₹99.00
- Full Name: 1N4731A 4.3V 1W Zener Diode
- 4.3V nominal Zener voltage
- 1W power dissipation
- ±5% voltage tolerance
- Low leakage current
- High reliability and stability
- Through-hole DO-41 package
- Suitable for voltage regulation and protection circuits
The 1N4731A is a 4.3V, 1W Zener diode designed for voltage regulation, voltage reference, overvoltage protection, and voltage clamping applications. Operating in reverse bias, it maintains a stable 4.3V output, making it ideal for power supplies, microcontroller circuits, Arduino projects, industrial electronics, and DIY applications. It is packaged in a DO-41 through-hole package for easy PCB mounting.
Features
- Full Name: 1N4731A 4.3V 1W Zener Diode
- 4.3V nominal Zener voltage
- 1W power dissipation
- ±5% voltage tolerance
- Low leakage current
- High reliability and stability
- Through-hole DO-41 package
- Suitable for voltage regulation and protection circuits
Specifications
| Specification | Value |
|---|---|
| Product Type | Zener Diode |
| Part Number | 1N4731A |
| Zener Voltage (Vz) | 4.3V |
| Voltage Tolerance | ±5% |
| Maximum Power Dissipation | 1W |
| Package | DO-41 |
| Maximum Zener Current (IZM) | Approx. 233 mA |
| Maximum Zener Impedance (ZZT) | 22 Ω |
| Reverse Leakage Current | ≤10 µA @ 1V |
| Forward Voltage | Approx. 1.2V @ 200 mA |
| Operating Temperature | -65°C to +200°C |
Note: The diode provides a stable 4.3V output only when connected in reverse bias with a suitable series current-limiting resistor.
Pin Configuration
| Pin | Description |
|---|---|
| Anode | Negative Terminal |
| Cathode | Positive Terminal (Marked with Silver Band) |
Note: The silver/gray band on the diode body indicates the Cathode (K) terminal.
Applications
- Voltage regulation
- Voltage reference circuits
- Overvoltage protection
- Power supply circuits
- Arduino and microcontroller projects
- Sensor interface circuits
- Industrial electronics
- Battery-powered devices
- DIY electronics projects
Advantages
- Stable 4.3V output
- Low power consumption
- High reliability
- Compact through-hole package
- Easy to install
- Cost-effective
- Long operational life
Size
| Specification | Value |
|---|---|
| Package | DO-41 |
| Body Length | Approx. 5.2 mm |
| Body Diameter | Approx. 2.7 mm |
| Lead Diameter | Approx. 0.8 mm |
| Weight | Approx. 0.3 g |
Package Includes
- 5 × 4.3V Zener Diode (1N4731A)
Note: Always use a series resistor to limit the current through the Zener diode. The 1N4731A is intended for voltage regulation and protection applications rather than standard rectification. Ensure the 1W maximum power dissipation rating is not exceeded for reliable and long-lasting performance.
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