ZY180 Zener Diode 180V 2W DO-41
The ZY180 is a high-power silicon Zener diode designed for voltage stabilization and regulator circuits. It provides a nominal Zener voltage of 180V and belongs to the ZY1–ZY200 series, which covers Zener voltages from 1V to 200V. The device is specified for a maximum power dissipation of 2W at an ambient temperature of 50°C.
The diode uses an axial DO-41 (DO-204AC) package and is intended for through-hole mounting. For the ZY180 variant, the datasheet specifies a Zener voltage range of 168V to 191V at a 5mA test current, dynamic resistance of 120Ω, a temperature coefficient of +9 to +13 × 10⁻⁴/°C, and a maximum Zener current of 10mA at TA = 50°C.
Features:
- High-power Zener diode construction.
- Suitable for voltage stabilization and regulator circuits.
- Axial through-hole package.
- Glass-passivated style construction.
- Suitable for PCB mounting.
- Designed for commercial-grade applications.
- RoHS and REACH compliant.
Specifications:
| Parameter | Specification |
|---|---|
| Part Number | ZY180 |
| Product Type | Zener Diode |
| Nominal Zener Voltage | 180V |
| Zener Voltage Range | 168V – 191V |
| Zener Test Current (IZtest) | 5mA |
| Dynamic Resistance (rzj) | 120Ω |
| Temperature Coefficient | +9 to +13 × 10⁻⁴/°C |
| Reverse Voltage at IR = 1µA | >90V |
| Maximum Zener Current at TA = 50°C | 10mA |
| Power Dissipation | 2W |
| Non-Repetitive Peak Power Dissipation | 60W, t < 1ms |
| Operating Junction Temperature | -50°C to +150°C |
| Storage Temperature | -50°C to +175°C |
| Thermal Resistance Junction-to-Ambient | <45 K/W |
| Thermal Resistance Junction-to-Lead | <15 K/W |
| Package | DO-41 (DO-204AC) |
| Mounting Type | Through-Hole |
| Standard Zener Voltage Tolerance | ±5% |
| Weight | 0.4g |
| Case Material | UL 94V-0 |

Applications:
- High-voltage stabilization.
- Voltage regulator circuits.
- High-voltage reference circuits.
- Voltage clamping.
- Power supply regulation.
- High-voltage electronic circuits.
Packages Included:
- 1 × ZY180 Zener Diode 180V 2W DO-41.







