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PTC Over Current Protectors are
used in series to protect electronic circuits when an over
current condition develops. When a fault develops in a circuit
leading to an over current condition, The PTC Thermistor switches
from its low resistance state to a very high resistance state
(this can be several decades of change) reducing the current
flow to a very low and safe level.
PTC Over Current Protector - 80 C Switching Temperature
Part Number |
Resis. @ 25 C (Ohms, +/- 20%) |
Max. Continuous Current (Amps) |
Min. Switching Current (Amps) |
Maximum
Voltage |
Maximum Diameter |
WC6510DB5R0M |
5.0 |
0.35 |
0.70 |
132 |
0.65" |
WC6010DB7R5M |
7.5 |
0.25 |
0.60 |
132 |
0.60" |
WC5510DB100M |
10.0 |
0.20 |
0.47 |
132 |
0.55" |
WC5510DB150M |
15.0 |
0.18 |
0.40 |
132 |
0.55" |
WC4509DB200M |
20.0 |
0.14 |
0.35 |
132 |
0.45" |
WC4009DB300M |
30.0 |
0.10 |
0.25 |
132 |
0.40" |
WC3508DB500M |
50.0 |
0.070 |
0.16 |
132 |
0.35" |
WC3008DB750M |
75.0 |
0.050 |
0.14 |
175 |
0.30" |
WC3008DB101M |
100.0 |
0.045 |
0.12 |
175 |
0.30" |
WC3008DB151M |
150.0 |
0.035 |
0.095 |
175 |
0.30" |
WC2510DB251M |
250.0 |
0.030 |
0.085 |
250 |
0.27" |
WC2209DB501M |
500.0 |
0.020 |
0.060 |
250 |
0.27" |
WC2209DB102M |
1000.0 |
0.015 |
0.040 |
300 |
0.27" |
-
110 C Switching Temperature
- 120 C Switching
Temperature
- 135 C Switching
Temperature
Definitions:
Maximum Continuous Current (Imcc)
The maximum amount of current which a PTC Thermistor must be able to pass without switching into its high resistance state. Expressed in Amps.
Minimum Switching Current (Imsc)
The Minimum amount of current necessary to switch the thermistor into its high resistance state. Expressed in Amps. |
