TPC20CAHM3/H Circuit Protection

Voltage - Clamping (Max) @ Ipp:	27.7V
Supplier Device Package:	TO-277A (SMPC)
Package / Case:	TO-277, 3-PowerDFN
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	54.2A
Series:	Automotive, AEC-Q101, PAR®, eSMP®
Voltage - Breakdown (Min):	19V
Voltage - Reverse Standoff (Typ):	17.1V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS (Transient Voltage Suppressor) diodes are used for a variety of applications to protect electronic circuits against transient voltage spikes. The TPC20CAHM3/H is an example of a TVS diode that has been developed for protecting automotive and heavy duty applications. This article will discuss the application field and working principle of the TPC20CAHM3/H.

Application Field

The TPC20CAHM3/H is designed for use in protection circuits for automotive and heavy duty applications. It has been specifically designed to withstand high voltage spikes from engines, lighting circuits, and other sources. The diode also features a lightning surge withstand voltage of 10 kV (L-N) with a peak pulse power of 3.5 kW (10/1000 μs waveform).

The diode also features a low clamping voltage of 25 V (typical), a negative peak power rating up to 1.3 kW (10/1000 μs waveform) and a very robust external heating plate design. This makes it ideal for protecting circuits from high voltage transients and surges, and also allows it to dissipate heat effectively. The device is also RoHS compliant and available in a standard TO-220 package.

Working Principle

A TVS diode is a voltage-sensitive device that acts as a voltage clamp when transients occur. When a transient voltage occurs, the diode will act to clamp the voltage to a safe level. The TPC20CAHM3/H is designed to clamp a voltage surge to 25 V, protecting the circuit from damage. The device also features a low threshold current which ensures that any surge will be clamped before the circuit is damaged.

The TPC20CAHM3/H also features a robust external heating plate design which allows the diode to dissipate heat quickly and effectively under high load conditions. This heat dissipation is important for protecting the device from overheating and potentially damaging the circuit.

The TPC20CAHM3/H is designed to work in harsh environments and can withstand high vibration and shocks. The device also features a wide operating temperature range of -55°C to +150°C, meaning it can be used in extreme temperatures without disruption. This makes it ideal for a variety of automotive and heavy duty applications.

Conclusion

The TPC20CAHM3/H is an efficient and robust TVS diode designed for protection in automotive and heavy duty applications. The diode features a low clamping voltage of 25 V and a robust external heating plate design, allowing it to dissipate heat quickly and ensure the circuit is protected. The device is RoHS compliant and available in a standard TO-220 package, making it ideal for a variety of automotive and heavy duty applications.

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