XR72-2.0 THRU XR72-39 PLANAR ZENER DIODE is a 500mW power, 2.0-39V voltage range diode produced by Shanghai Sunrise Electronics Co., Ltd.
The XR72 series planar Zener diodes provide a wide voltage range from 2.0 V to 39 V with a maximum power dissipation of 500 mW. They feature a small glass structure for high reliability, low Zener impedance at low current, and can withstand high‑temperature soldering (250 °C/10 s).\n\nMechanical data include plated axial leads compliant with MIL‑STD‑202E, a hermetically sealed glass case, and color‑band polarity marking. Maximum ratings are specified at 25 °C ambient, with a thermal resistance of 0.3 °C·W⁻¹ and operating temperature range from –55 °C to +175 °C.
| Zener Voltage | 2.0‑39 V |
|---|---|
| Power Dissipation | 500 mW |
| Thermal Resistance (junction‑to‑ambient) | 0.3 °C·W⁻¹ |
| Case Material | Glass, hermetically sealed |
| Lead Type | Plated axial leads, MIL‑STD‑202E |
The XR72 series covers a Zener voltage range from 2.0 V up to 39 V.
Each XR72 diode is rated for a maximum power dissipation of 500 mW.
The thermal resistance (junction‑to‑ambient) is specified as 0.3 °C per milliwatt.
They are housed in a hermetically sealed glass case with plated axial leads.