The MF72 series Power NTC Thermistors are designed to provide inrush current suppression for sensitive electronics. If you’re looking for the key specifications of the MF72-033D7, here’s some useful information shared by the manufacturer:
1. Temperature characteristic: How the resistance value changes as the ambient temperature changes?
→ As the ambient temperature rises, the resistance value will decrease, and the RT curve is nonlinear.
2. Surge energy rating: The maximum energy (in joules) the part can withstand?
→ According to the joule energy calculation formula: E=1/2×CV2, E= 1.958 (J)
3. Maximum current: Maximum current that can flow during inrush?
→ We don’t have this parameter. We have the maximum steady-state current value. Based on experience, for ntc thermistors, the maximum steady-state current can be selected as 2 to 3 times the actual operating current of the circuit.
Applicable Part Numbers
| DigiKey Part Number | Manufacturer Part Number |
|---|---|
| 317-1145-ND | MF72-010D5 |
| 317-1148-ND | MF72-005D7 |
| 317-1155-ND | MF72-200D7 |
| 317-1158-ND | MF72-005D9 |
| 317-1161-ND | MF72-010D9 |
| 317-1171-ND | MF72-120D9 |
| 317-1162-ND | MF72-012D9 |
| 317-1177-ND | MF72-005D11 |
| 317-1154-ND | MF72-033D7 |
| 317-1144-ND | MF72-005D5 |
| 317-1153-ND | MF72-022D7 |
| 317-1152-ND | MF72-016D7 |
| 317-1146-ND | MF72-060D5 |
| 317-1172-ND | MF72-200D9 |
| 317-1173-ND | MF72-400D9 |
| 317-1156-ND | MF72-003D9 |
| 317-1168-ND | MF72-050D9 |
| 317-1160-ND | MF72-008D9 |
| 317-1169-ND | MF72-060D9 |
| 317-1165-ND | MF72-022D9 |
| 317-1164-ND | MF72-020D9 |
| 317-1170-ND | MF72-080D9 |
| 317-1159-ND | MF72-006D9 |
| 317-1180-ND | MF72-010D11 |
| 317-1175-ND | MF72-003D11 |
| 317-1185-ND | MF72-030D11 |
| 317-1174-ND | MF72-002.5D11 |
| 317-1206-ND | MF72-120D13 |
| 317-1190-ND | MF72-001.3D13 |
| 317-1216-ND | MF72-015D15 |
| 317-1214-ND | MF72-010D15 |
| 317-1210-ND | MF72-005D15 |
| 317-1229-ND | MF72-010D20 |
| 317-1225-ND | MF72-005D20 |
| 317-1237-ND | MF72-010D25 |
| 317-1179-ND | MF72-008D11 |
| 317-1182-ND | MF72-016D11 |
| 317-1189-ND | MF72-080D11 |
| 317-1188-ND | MF72-060D11 |
| 317-1204-ND | MF72-030D13 |
| 317-1196-ND | MF72-006D13 |
| 317-1203-ND | MF72-020D13 |
| 317-1192-ND | MF72-002.5D13 |
| 317-1215-ND | MF72-012D15 |
| 317-1209-ND | MF72-003D15 |
| 317-1219-ND | MF72-030D15 |
| 317-1213-ND | MF72-008D15 |
| 317-1208-ND | MF72-001.5D15 |
| 317-1233-ND | MF72-001.5D25 |
| 317-1181-ND | MF72-012D11 |
| 317-1232-ND | MF72-000.7D25 |
| 317-1198-ND | MF72-008D13 |
| 317-1150-ND | MF72-010D7 |
| 317-1184-ND | MF72-022D11 |
| 317-1195-ND | MF72-005D13 |
| 317-1149-ND | MF72-008D7 |
| 317-1201-ND | MF72-015D13 |
| 317-1222-ND | MF72-000.7D20 |
| 317-1224-ND | MF72-003D20 |
| 317-1234-ND | MF72-003D25 |
| 317-1157-ND | MF72-004D9 |
| 317-1220-ND | MF72-047D15 |
| 317-1231-ND | MF72-016D20 |
| 317-1151-ND | MF72-012D7 |
| 317-1176-ND | MF72-004D11 |
| 317-1194-ND | MF72-004D13 |
| 317-1235-ND | MF72-005D25 |
| 317-1200-ND | MF72-012D13 |
| 317-1202-ND | MF72-016D13 |
| 317-1218-ND | MF72-020D15 |
| 317-1221-ND | MF72-120D15 |
| MF72-080D9-STRAIGHT-ND | MF72-080D9-STRAIGHT |
| 317-1163-ND | MF72-016D9 |
| 317-1166-ND | MF72-030D9 |
| 317-1167-ND | MF72-033D9 |
| 317-MF72-004D9-STRAIGHT-ND | MF72-004D9-STRAIGHT |
| 317-1178-ND | MF72-006D11 |
| 317-1183-ND | MF72-020D11 |
| 317-1186-ND | MF72-033D11 |
| 317-1187-ND | MF72-050D11 |
| 317-1191-ND | MF72-001.5D13 |
| 317-1193-ND | MF72-003D13 |
| 317-1197-ND | MF72-007D13 |
| 317-1199-ND | MF72-010D13 |
| 317-1205-ND | MF72-047D13 |
| 317-1207-ND | MF72-001.3D15 |
| 317-1211-ND | MF72-006D15 |
| 317-1212-ND | MF72-007D15 |
| 317-1217-ND | MF72-016D15 |
| 317-1223-ND | MF72-001.3D20 |
| 317-1226-ND | MF72-006D20 |
| 317-1228-ND | MF72-008D20 |
| 317-1230-ND | MF72-012D20 |
| 317-1236-ND | MF72-008D25 |
| 317-1238-ND | MF72-012D25 |
| 317-1239-ND | MF72-016D25 |