Varistor transient suppessor for Velleman K8090, VM206 and other relay boards used to switch inductive loads. They help to prolong the life of the relays contacts by reducing damage and sticking due to arcing.
Simply fit across relay contacts C and NO (and/or C and NC if you use those).
Specifications- varistor voltage: 470V (351 ~ 429)
- max. clamping voltage: 775 (Vxa) (8/20uS) (1mA test)
- max. clamping peak current: 4500A (1st time), 2500A (2nd time)
- max. energy (J): 125J (10/100uS), 80J (2ms)
- operating voltage:
- type: 14D471
- dimensions:
- D: 16.5mm
- T: 5.5 .. 9.8mm
- d: 0.8mm
- pitch:
- response time: < 25ns
- electric strength: 2.5kV
- insulation resistance: > 1G ohms
- tolerance: 10% (K)
Buy Velleman VDR300