BT137/500 500V/8A Triac
Z1712
$3.10 per ea |
|
|---|---|
| Quantity | Price |
| ea | $3.10 |
| 10+ | $2.75 |
| 25+ | $2.15 |
| per ea | |
| Packaging | |
| All prices shown are (inc. GST) | |
Overview
BT137/500 TRIAC 500V/8A TO-220 package
TRIAC is derived from 'Triode for Alternating Current', is an abbreviated name for an electronic component that can conduct current in both directions when it is triggered (turned on), and is formally known as a bidirectional triode thyristor or bilateral triode thyristor.
TRIACs are a member of the thyristor group and are very similar to silicon-controlled rectifiers (SCR). Though, unlike SCRs, which are unidirectional devices (that is. can conduct current only in one direction), TRIACs are bidirectional and so current can flow in either direction. TRIAC current flow can be triggered by either a positive or negative current applied to its gate electrode.
Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.
The bidirectionality makes TRIACs very convenient switches for (AC) alternating current circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an A.C. cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling A.C. heating resistors.
TRIAC is derived from 'Triode for Alternating Current', is an abbreviated name for an electronic component that can conduct current in both directions when it is triggered (turned on), and is formally known as a bidirectional triode thyristor or bilateral triode thyristor.
TRIACs are a member of the thyristor group and are very similar to silicon-controlled rectifiers (SCR). Though, unlike SCRs, which are unidirectional devices (that is. can conduct current only in one direction), TRIACs are bidirectional and so current can flow in either direction. TRIAC current flow can be triggered by either a positive or negative current applied to its gate electrode.
Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.
The bidirectionality makes TRIACs very convenient switches for (AC) alternating current circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an A.C. cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling A.C. heating resistors.
Information & Downloads
- Altronics Code: Z1712
- I/N: 7373
- Barcode: 9321758085295
- Shipping Weight: 0.00190Kg
- Packaging Sizes
- EACH: 1
- TUBE: 50
- Printed Catalogue Page 332
- Large Image 1
Warranty & Returns
12 MONTHS
We offer 12 months warranty on this product from its date of purchase. This is available from Altronics stores, online purchases or Altronics resellers. In accordance with our full warranty terms we will repair, replace or refund if goods you have purchased from us are defective.
14 DAY MONEY BACK GUARANTEE
Not withstanding our warranty policy, if you are dissatisfied with our goods or service you may return the goods within 14 days of our despatch date. Simply contact us for a return authorisation number and we will refund your purchase in full, less transport costs on receipt of goods. All returned goods must be in as sold condition including all packaging, instructions, invoices etc.
