| Allicdata Part #: | F2276-ND |
| Manufacturer Part#: |
V27MA1B |
| Price: | $ 0.60 |
| Product Category: | Circuit Protection |
| Manufacturer: | Littelfuse Inc. |
| Short Description: | VARISTOR 27V 40A SOD83A AXIAL |
| More Detail: | 27V 40A Varistor 1 Circuit Through Hole SOD-83A Ax... |
| DataSheet: |  V27MA1B Datasheet/PDF |
| Quantity: | 1000 |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| 1 +: | $ 0.54180 |
| 10 +: | $ 0.47439 |
| 25 +: | $ 0.41983 |
| 100 +: | $ 0.36572 |
| 250 +: | $ 0.31830 |
| 500 +: | $ 0.27090 |
| 1000 +: | $ 0.21672 |
| 2500 +: | $ 0.19640 |
| 5000 +: | $ 0.18286 |
| Varistor Voltage (Typ): | 27V |
| Package / Case: | SOD-83A Axial |
| Mounting Type: | Through Hole |
| Operating Temperature: | -40°C ~ 85°C (TA) |
| Capacitance @ Frequency: | 370pF @ 1MHz |
| Number of Circuits: | 1 |
| Energy: | 0.11J |
| Current - Surge: | 40A |
| Varistor Voltage (Max): | 31V |
| Series: | MA |
| Varistor Voltage (Min): | 24V |
| Maximum DC Volts: | 22V |
| Maximum AC Volts: | 17V |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Active |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Bulk |
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TVS (Transient Voltage Suppressors) are electronic devices which protect electrical circuits from over-voltage transients such as lightning strikes. Varistors, MOVs (Metal Oxide Varistors), and specialty components like V27MA1B, are all types of TVS. The V27MA1B, in particular, is designed to protect against high-energy over voltage transients in automotive circuits. In this article, we’ll look at the application field and working principle of the V27MA1B.
Application Field
The V27MA1B is designed to be used in automotive circuits, to protect against high-energy over voltage transients. These transients can often arise from inductive switching, such as the switching of a heavy load. It is also designed to comply with the ISO/TS16949 automotive industry quality standard, meaning that it can be used in critical safety-related applications.
Working Principle
The V27MA1B is a diode-based transient voltage suppressor, which is capable of handling up to 600A peak. It is designed to be able to withstand transient currents of up to 500V/µs. When it is exposed to a voltage that is higher than the threshold voltage of the device, it will quickly reduce the voltage to a safe level, thus protecting the circuit.
The device consists of a pair of reverse-biased PN junction diodes, which are connected in series. When a pulse is applied to the input of the device, the diodes will be forward-biased, and a current will flow. This current is limited by the capacitance of the device, and its value is determined by the size of the device. The current will then be dissipated by the device, and the voltage will quickly return to its normal level.
In this way, the V27MA1B is able to protect automotive circuits from over voltage transients. It is designed to provide maximum protection against the damaging effects of such transients, and is compliant with the ISO/TS16949 automotive industry quality standard.
The specific data is subject to PDF, and the above content is for reference
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