Overview
The SZMMBZ5231BLT3G is a Zener voltage regulator diode produced by onsemi, designed for voltage regulation in various electronic applications. This device is part of the MMBZ52xxBLT1G series and is packaged in a surface-mount SOT-23 format, making it ideal for high-density PCBs and automated board assembly. The SZ prefix indicates that this device is AEC-Q101 qualified and PPAP capable, making it suitable for automotive and other demanding applications.
Key Specifications
| Parameter | Symbol | Min | Nom | Max | Units |
|---|---|---|---|---|---|
| Zener Voltage | VZ | 4.84 | 5.1 | 5.36 | V |
| Reverse Current at VZ | IZT | 20 | - | - | mA |
| Maximum Zener Impedance at IZT | ZZT | - | - | 1600 | Ω |
| Reverse Leakage Current at VR | IR | - | - | 0.25 | μA |
| Total Power Dissipation on FR-5 Board | PD | - | - | 225 | mW |
| Thermal Resistance, Junction-to-Ambient | RJA | - | - | 556 | °C/W |
| Junction and Storage Temperature Range | TJ, Tstg | -65 | - | +150 | °C |
| ESD Rating | - | - | - | > 16 KV | - |
Key Features
- 225 mW power rating on FR-4 or FR-5 board, with derating above 25°C.
- Zener voltage range from 2.4 V to 91 V.
- Surface-mount SOT-23 package designed for optimal automated board assembly.
- Small package size suitable for high-density applications.
- ESD rating of Class 3 (> 16 KV) per Human Body Model.
- AEC-Q101 qualified and PPAP capable, indicated by the SZ prefix.
- Pb-free, halogen-free/BFR-free, and RoHS compliant.
- Corrosion-resistant finish and easily solderable.
- Maximum case temperature for soldering purposes: 260°C for 10 seconds.
Applications
- Cellular phones and other handheld portable devices.
- High-density PC boards and other compact electronic systems.
- Automotive electronics requiring AEC-Q101 qualification.
- Voltage regulation in various electronic circuits.
- Protection against voltage spikes and surges.
Q & A
- What is the Zener voltage range of the SZMMBZ5231BLT3G?
The Zener voltage range for the SZMMBZ5231BLT3G is from 4.84 V to 5.36 V.
- What is the maximum power dissipation on an FR-5 board for this device?
The maximum power dissipation on an FR-5 board is 225 mW.
- What is the thermal resistance, junction-to-ambient, for this device?
The thermal resistance, junction-to-ambient, is 556 °C/W.
- Is the SZMMBZ5231BLT3G RoHS compliant?
Yes, the device is Pb-free, halogen-free/BFR-free, and RoHS compliant.
- What is the ESD rating of the SZMMBZ5231BLT3G?
The ESD rating is Class 3 (> 16 KV) per Human Body Model.
- What are the typical applications for this device?
Typical applications include cellular phones, handheld portables, high-density PC boards, and automotive electronics.
- What is the package type of the SZMMBZ5231BLT3G?
The device is packaged in a surface-mount SOT-23 format.
- Is the SZMMBZ5231BLT3G AEC-Q101 qualified?
Yes, the device is AEC-Q101 qualified and PPAP capable, indicated by the SZ prefix.
- What is the maximum case temperature for soldering purposes?
The maximum case temperature for soldering purposes is 260°C for 10 seconds.
- What is the reverse leakage current at VR for this device?
The reverse leakage current at VR is 0.25 μA.
