Overview
The SZMMSZ5257BT1G is a Zener diode from onsemi, designed for general-purpose and medium-current applications. It is part of the MMSZ52xxBT1G series, which offers a wide range of Zener reverse voltages. This device is packaged in a surface-mount SOD-123 case, making it suitable for high-density applications and optimal for automated board assembly. The SZMMSZ5257BT1G is AEC-Q101 qualified and PPAP capable, ensuring its reliability in automotive and other demanding environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Zener Voltage (VZ) @ IZT | 31.35 - 33 - 34.65 | V |
| Reverse Current (IZT) | 3.8 mA | mA |
| Maximum Zener Impedance (ZZT) @ IZT | 58 Ω | Ω |
| Reverse Leakage Current (IR) @ VR | 0.1 μA | μA |
| Forward Current (IF) | 10 mA | mA |
| Forward Voltage (VF) @ IF | 0.9 V Max. | V |
| Power Dissipation (P Max) | 0.5 W | W |
| Junction and Storage Temperature Range | -55 to +150 °C | °C |
| Package Type | SOD-123 | |
| ESD Rating | Class 3 (> 16 kV) per Human Body Model |
Key Features
- 500 mW rating on FR-4 or FR-5 board
- Wide Zener reverse voltage range: 2.4 V to 110 V
- Package designed for optimal automated board assembly
- Small package size for high-density applications
- General purpose, medium current
- ESD rating of Class 3 (exceeding 16 kV) per Human Body Model
- AEC-Q101 qualified and PPAP capable for automotive and other demanding applications
- Pb-free packages available
- Corrosion-resistant finish, easily solderable
- Maximum case temperature for soldering purposes: 260°C for 10 seconds
Applications
The SZMMSZ5257BT1G Zener diode is suitable for a variety of applications, including:
- Automotive systems requiring AEC-Q101 qualification
- High-density electronic circuits where space is limited
- General-purpose voltage regulation and stabilization
- Surge protection and transient voltage suppression
- Medium-current applications in industrial and consumer electronics
Q & A
- What is the Zener voltage range of the SZMMSZ5257BT1G?
The Zener voltage range is 31.35 V to 34.65 V at IZT.
- What is the maximum power dissipation of the SZMMSZ5257BT1G?
The maximum power dissipation is 0.5 W.
- What is the package type of the SZMMSZ5257BT1G?
The package type is SOD-123.
- Is the SZMMSZ5257BT1G AEC-Q101 qualified?
- What is the ESD rating of the SZMMSZ5257BT1G?
The ESD rating is Class 3, exceeding 16 kV per Human Body Model).
- What is the junction and storage temperature range of the SZMMSZ5257BT1G?
The junction and storage temperature range is -55°C to +150°C).
- Is the SZMMSZ5257BT1G Pb-free?
- What is the maximum case temperature for soldering purposes?
The maximum case temperature for soldering purposes is 260°C for 10 seconds).
- What are the typical applications of the SZMMSZ5257BT1G?
The SZMMSZ5257BT1G is used in automotive systems, high-density electronic circuits, general-purpose voltage regulation, surge protection, and medium-current applications).
- What is the forward voltage of the SZMMSZ5257BT1G at 10 mA?
The forward voltage is 0.9 V Max. at 10 mA).
- How is the polarity indicated on the SZMMSZ5257BT1G?
The polarity is indicated by a polarity band on the cathode side).
