BTA20.2
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The BTA20.2 is a through-hole mounted machine control board with bidirectional polarity and an insulation voltage of 2500 V(rms). Built by Bosch Rexroth Indramat as part of the BTA20 Machine Control Boards, it features a gate trigger voltage of 1.5 V. It operates within a junction temperature range of -40°C to +125°C.
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Product Description:
The BTA20.2 Triac is a Bosch Rexroth machine control board made for fine control of AC power. It can handle uses with medium to high current and makes sure that switching and regulation work well. The product has an insulated tab that makes attaching it safer and more flexible. BTA20.2 can be used in a number of different parts of industrial control systems.
The highest gate trigger voltage for the BTA20.2 is 1.5 volts, which makes sure that the gate always opens when normal control voltages are used. The gate trigger current is set at 35 mA for CW-type configurations and 50 mA for BW-type configurations. The holding current is set at no more than 50 mA for CW-type and 75 mA for BW-type. This is the lowest current that is needed to keep the conduction going. The latching current, which makes sure the safe change from off-state to on-state, is usually between 50 and 90 mA and never goes above 80 mA. The gate non-trigger voltage must be at least 0.2 volts to stop the gate from activating by accident. The product's critical rate of rise of off-state voltage (dV/dt) is between 250 and 500 V/µs, with a usual range of 500 to 750 V/µs. The dV/dt commutation is rated at a minimum of 11 to 18 V/µs and a usual range of 22 to 36 V/µs.
The BTA20.2 machine control board can handle short-term overload situations and has a high surge current capability. The board also does not need an external RC network for commutation because it does not have a snubber. These traits make it possible for circuits to work well even when they have small structures and few external parts. The Triac meets UL shielding standards and can handle up to 2500 V RMS.
Frequently Asked Questions about BTA20.2:
Q: How does BTA20.2 benefit from 2500V RMS insulation?
A: The 2500V RMS insulation improves safety by isolating control and power sections, preventing electrical faults or arcing between terminals.
Q: Why is the latching current in BTA20.2 up to 80mA?
A: The maximum 80mA latching current allows a reliable transition from off to on state, preventing misfiring during initial gate triggering.
Q: How does BTA20.2 achieve snubberless operation?
A: BTA20.2 has a design that handles commutation internally, eliminating the need for external RC snubber circuits and reducing component count.
Q: Does BTA20.2 support high dV/dt resistance?
A: Yes, it handles up to 750V/µs dV/dt, which protects against false triggering due to rapid voltage transients across the device.
Q: Do low commutation dV/dt ratings affect BTA20.2?
A: No, BTA20.2 offers a minimum commutation dV/dt of 11V/µs that ensures safe operation during switching between conducting quadrants.
