Overview
The 1SMA5940BT3G is a 1.5 Watt plastic surface mount Zener voltage regulator produced by onsemi. This component is part of the 1SMA59xxBT3G series, which offers a range of Zener breakdown voltages from 3.3 V to 68 V. The 1SMA5940BT3G is specifically designed with a Zener voltage of 43 V, making it suitable for various voltage regulation and stabilization applications. It features a low profile package, ideal for space-constrained designs, and is AEC-Q101 qualified, ensuring reliability in automotive and other demanding environments.
Key Specifications
| Parameter | Min | Nom | Max |
|---|---|---|---|
| Zener Voltage (VZ) @ IZT | 40.85 V | 43 V | 45.15 V |
| Reverse Current (IZT) | - | 2.0 mA | - |
| Maximum Zener Impedance (ZZT) @ IZT | - | 8.7 Ω | - |
| Reverse Leakage Current (IR) @ VR | - | 0.25 μA | - |
| Maximum DC Zener Current (IZM) | - | 53 mA | - |
| ESD Rating | - | Class 3 (> 16 kV) per Human Body Model | - |
| Maximum Case Temperature for Soldering | - | 260°C for 10 seconds | - |
| Flammability Rating | - | UL 94 V-0 @ 0.125 in | - |
Key Features
- Standard Zener breakdown voltage range: 3.3 V to 68 V
- ESD Rating of Class 3 (> 16 kV) per Human Body Model
- Flat handling surface for accurate placement
- Low profile package suitable for space-constrained designs
- Ideal replacement for MELF packages
- AEC-Q101 qualified and PPAP capable
- Pb-free device
- Corrosion-resistant finish with readily solderable leads
Applications
- Voltage regulation and stabilization in various electronic circuits
- Automotive applications requiring high reliability and durability
- Industrial control systems and power supplies
- Consumer electronics needing stable voltage references
- Telecommunication equipment for voltage regulation
Q & A
- What is the Zener voltage range of the 1SMA5940BT3G?
The Zener voltage range for the 1SMA5940BT3G is from 40.85 V to 45.15 V.
- What is the ESD rating of the 1SMA5940BT3G?
The ESD rating is Class 3 (> 16 kV) per Human Body Model.
- What is the maximum DC Zener current for the 1SMA5940BT3G?
The maximum DC Zener current is 53 mA.
- Is the 1SMA5940BT3G AEC-Q101 qualified?
- What is the maximum case temperature for soldering the 1SMA5940BT3G?
The maximum case temperature for soldering is 260°C for 10 seconds.
- What is the flammability rating of the 1SMA5940BT3G?
The flammability rating is UL 94 V-0 @ 0.125 in.
- Is the 1SMA5940BT3G a Pb-free device?
- What are some common applications of the 1SMA5940BT3G?
- What is the package type of the 1SMA5940BT3G?
- Is the 1SMA5940BT3G suitable for high-reliability environments?
