EV/On-vehicle signal switching relay FTR-B3/B4/C1 series
1mA 400VDC switching (maximum switching power 0.4W)! Compatible with EV batteries of 300-400VDC.
This is a relay for signal switching in onboard equipment compatible with the commonly used 300-400 VDC batteries in EVs. We offer various series including the compact low-profile FTR-B3, the compact slim FTR-B4, and the high-voltage wide-gap FTR-C1 with increased insulation distance. It is suitable for applications such as switching the in-vehicle audio circuit for emergency calls (e-call) in EVs, battery monitoring, abnormal detection for overvoltage/overcurrent, and leakage detection for low/high voltage. It can also be used for low-voltage signal switching applications in gasoline and hybrid vehicles.
basic information
【Specifications】 ★Common to FTR-B3, FTR-B4, FTR-C1★ Contact configuration: 2c Contact rating: 1A 30VDC Maximum switching power: 30W (30VDC) / 0.4W (400VDC) Terminal shape: Through-hole / Surface mount / Reduced mounting area surface mount Operating function: Non-latching / Latching
Price range
Delivery Time
Model number/Brand name
FTR-B3, FTR-B4, FTR-C1 series
Applications/Examples of results
Emergency call vehicle audio circuit switch (e-call) Battery controller (battery monitoring, abnormal detection of overvoltage/overcurrent, low/high voltage leakage detection)
Line up（3）
| Model number | overview |
|---|---|
| Compact Low Profile FTR-B3 | Surge voltage resistance: 2500V, clearance/creepage distance: 1.0mm/1.6mm, external dimensions: 7.2 x 10.6 x 5.25 |
| Compact Slim FTR-B4 | Surge voltage resistance: 2500V, clearance/creepage distance: 1.0mm/1.6mm, external dimensions: 5.7 x 10.6 x 9.0 |
| High Voltage Wide Gap FTR-C1 | Surge voltage resistance: 5000V, clearance/creepage distance: 2.0mm/2.5mm, external dimensions: 7.5 x 15.0 x 9.3 |
