24V Zener Diode (1N4749A)
₹19.00
- Full Name: 1N4749A 24V 1W Zener Diode
- 24V nominal Zener voltage
- 1W power dissipation
- Low leakage current
- Stable voltage regulation
- High reliability
- Through-hole DO-41 package
- Suitable for protection and reference circuits
The 1N4749A is a 24V, 1W Zener diode designed for voltage regulation, voltage reference, overvoltage protection, and voltage clamping applications. It operates in reverse bias to maintain a stable 24V output, making it ideal for power supplies, battery chargers, voltage regulators, Arduino projects, industrial electronics, and DIY circuits. It is supplied in the DO-41 through-hole package.
Features
- Full Name: 1N4749A 24V 1W Zener Diode
- 24V nominal Zener voltage
- 1W power dissipation
- Low leakage current
- Stable voltage regulation
- High reliability
- Through-hole DO-41 package
- Suitable for protection and reference circuits
Specifications
| Specification | Value |
|---|---|
| Product Type | Zener Diode |
| Part Number | 1N4749A |
| Zener Voltage (Vz) | 24V |
| Voltage Tolerance | ±5% |
| Maximum Power Dissipation | 1W |
| Package | DO-41 |
| Maximum Zener Current (IZM) | Approx. 190 mA |
| Maximum Zener Impedance (ZZT) | 25 Ω |
| Reverse Leakage Current | ≤5 µA @ 18.2V |
| Forward Voltage | Approx. 1.2V @ 200 mA |
| Operating Temperature | -65°C to +200°C |
Note: The diode regulates at 24V only when operated in reverse bias with an appropriate 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 supplies
- Battery chargers
- Voltage clamping
- Arduino and microcontroller projects
- Industrial control circuits
- DIY electronics
Advantages
- Stable 24V output
- High reliability
- Low leakage current
- Easy to use
- Compact through-hole package
- Excellent surge capability
- Cost-effective solution
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
- 1 × 1N4749A 24V 1W Zener Diode
Note: Always use a series resistor to limit the current through the Zener diode. The 1N4749A is intended for voltage regulation and protection, not for standard rectification. Ensure the 1W power dissipation rating is not exceeded during operation.
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