b. Thermal guard "OHD®" is popularly
used for anti-overheat sensor. It contributes to easy circuit designing
as it is compact and light weight, designed to function simple and
reliable ON/OFF operation at the predetermined temperature and able
to function in the signal power range between 0.1mW to 6W(*1). Moreover,
compared to bimetals, response is approx. 2 times superior and because
the contacts are glass-sealed, it has excellent dust proof, ignition
proof and corrosion resistance property. (*2)Also, as it is International
safety standards (UL, TUV, CSA) certificated,
It accommodates to expanding international market as the globalization
of the production accelerates (*1: OHD5S-__B, OHD5D-__B and OHD5R-__B
are MAX 1W / *2: Based on NEC Tokin test data ) |
| i. Electric rating / naming rules |
| |
 |
| Product Name |
OHD1-,OHD3- |
OHD5S |
OHD5D-,OHD5R- |
 |
 |
 |
| Conctact type |
B(Break),M(Make) |
B(Break) |
| MaxON/OFFVoltage |
110V AC/DC |
30V DC |
| MaxON/OFFCurrent |
0.3A AC/DC |
0.1A DC |
| MaxON/OFFPower |
6W AC/DC |
1W DC |
| MinON/OFFCurrent |
0.1mA/1V.DC |
0.1mA/1V.DC |
| Contact resistance |
150mƒ max |
300mƒmax |
| Withstand Voltage |
2500VAC/1min, or3000VAC/1sec
(pin-attachment plastic) |
1500VAC/1min, or1800VAC/1sec
(pin-attachment plastic) |
| Withstand Resistance |
DC500V-100Mƒmin
(pin-attachment plastic) |
DC500V-100Mƒmin
(pin-attachment plastic) |
Approved by
UL: E67648, CSA: LR50414,
TÜV: OHD1·3 R9750955/OHD5R·5D R9750944
| Longevity |
 
times*1 |
Temperature toleranc |
 5 |
| Operating temperature range |
30 130(5step) |
DIFFtemperature |
10MAX |
*1 By our independent test
|
 |
