9.1V Zener Diode 1N4739A (5 Pcs)
₹19.00
- Full Name: 1N4739A 9.1V 1W Zener Diode
- 9.1V nominal Zener voltage
- 1W power dissipation
- ±5% voltage tolerance
- Low leakage current
- High stability and reliability
- Through-hole DO-41 package
- Suitable for voltage regulation and protection circuits
The 1N4739A is a 9.1V, 1W Zener diode designed for voltage regulation, voltage reference, overvoltage protection, and voltage clamping applications. Operating in reverse bias, it maintains a stable 9.1V output, making it ideal for power supplies, battery chargers, Arduino projects, industrial electronics, and DIY circuits. The diode is housed in a DO-41 through-hole package for easy PCB mounting.
Features
- Full Name: 1N4739A 9.1V 1W Zener Diode
- 9.1V nominal Zener voltage
- 1W power dissipation
- ±5% voltage tolerance
- Low leakage current
- High stability and reliability
- Through-hole DO-41 package
- Suitable for voltage regulation and protection circuits
Specifications
| Specification | Value |
|---|---|
| Product Type | Zener Diode |
| Part Number | 1N4739A |
| Zener Voltage (Vz) | 9.1V |
| Voltage Tolerance | ±5% |
| Maximum Power Dissipation | 1W |
| Package | DO-41 |
| Maximum Zener Current (IZM) | Approx. 98 mA |
| Maximum Zener Impedance (ZZT) | 10 Ω |
| Reverse Leakage Current | ≤5 µA @ 7V |
| Forward Voltage | Approx. 1.2V @ 200 mA |
| Operating Temperature | -65°C to +200°C |
Note: The diode regulates at 9.1V 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
- Battery chargers
- Voltage clamping
- Arduino and microcontroller projects
- Industrial electronics
- DIY electronics
Advantages
- Stable 9.1V output
- Low leakage current
- 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 × 9.1V Zener Diode (1N4739A)
Note: Always use a series resistor to limit the current through the Zener diode. The 1N4739A is intended for voltage regulation and protection applications rather than standard rectification. Ensure the 1W power dissipation rating is not exceeded for reliable operation.
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