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IL2418DT
IL2418DT - Brand New IK-SEMICO IC Chips
- One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
**The IL2418 is a monolithic integrated circuit telephone tone ringer
with bridge diode, when coupled with an appropriate transducer, it replaces the electro -mechanical bell. The device is designed for use with either a piezo transducer or an inexpensive transformer coupled speaker to**
produce a pleasing tone composed of a high frequency (fR) alternating with a
low frequency (fL) resulting in a warble frequency. The supply voltage is
obtained from the AC ring signal and the circuit is designed so that noise on
the line or variation of the ringing signal can not affect correct operation
of the device.
· On chip high voltage full wave diode bridge rectifier
· Low current consumption, in order to allow the parallel operation of the 4
devices
· Low external component count
· Tone and switching frequencies adjustable by external components
· High noise immunity due to built-in voltage-current hysteresis
· Activation voltage adjustable
· Internal zener diodes to protect against over voltages
· Ringer impedance adjustable with external components
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
| United States | 3 - 5 days | 10-15 days | |
| Canada | 3 - 5 days | 10-20 days | |
| Mexico | 3 - 5 days | 10-17 days | |
| Germany | 3 - 5 days | 10-12 days | |
| Italy | 3 - 5 days | 10-15 days | |
| United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |