1. Rapid operation to protect the circuit in an overcurrent condition abnormality such as a short circuit.
By removing the overcurrent condition, these products automatically return to the initial
condition and can be used repeatedly.
2. Suitable for countermeasure to short circuit test in safety standard.
3. Stable resistance after operation due to ceramic PTC.
4. Similar size is possible due to the large capacity for electric power.
5. Possible to use these products as current limiting resistors with ercurrent protection functions
6. The SMD type's small size and light weight are helpful in miniaturizing the circuit.
Applications
1. Laptop computer
2. AC power adapter
3. Rechargeable battery pack
4. LED
5. Overcurrent protection for consumer electronic devices
Structure and size
| NO | SIZE(EIA) | L1 | W | H max. | L2 and L3. |
| TPM1P | 0603 | 1.60±0.15 | 0.80±0.15 | 0.80±0.15 | 0.40±0.20 |
| TPM2P | 0805 | 2.00±0.20 | 1.25±0.20 | 1.00 max. | 0.45±0.25 |
| TPM4P | 1210 | 3.20±0.30 | 2.50±0.25 | 1.80 max. | 0.50±0.20 |
| The following applies only to TPM2P150M100R and TPM2P220M100R |
| TPM2P | 0805 | 2.00±0.20 | 1.25±0.20 | 1.45 | 0.45±0.25 |
Electrical Characteristics
0603 Series
| Part No. | Curie temperature | 25℃ Rated Resistance | Non-Operating Current | Tip current | Max Voitage | Max Current | Operating temperature range |
| @ +60℃ | @ +25℃ | @+25℃ | @ -10℃ | @ Vmax | @V=0 |
| Tc (℃) | R25 (Ω) | IN (mA) | IT (mA) | Vmax (VDC ) | Imax (mA) | TL~TU (℃) |
| TPM1P330M100R | 100±10 | 33 | 25 | 36 | 71 | 85 | 24 | 900 | -10 ~ +60 | -40~ +125 |
| TPM1P470M100R | 47 | 20 | 29 | 61 | 75 | 630 |
| TPM1P600L100R | 60 | 20 | 29 | 61 | 75 | 500 |
| TPM1P800M100R | 80 | -- | 26 | 55 | -- | 400 |
| TPM1P101M100R | 100 | 15 | 21 | 45 | 55 | 300 |
| TPM1P221M100R | 220 | 10 | 14 | 29 | 35 | 130 |
| TPM1P471M100R | 470 | 7 | 10 | 21 | 25 | 60 |
0805 Series
| Part No. | Curie temperature | 25℃ Rated Resistance | Non-Operating Current | Tip current | Max Voitage | Max Current | Operating temperature range |
| @ +85℃ | @ +25℃ | @+25℃ | @ -40℃ | @ Vmax | @V=0 |
| Tc (℃) | R25 (Ω) | IN (mA) | IT (mA) | Vmax (VDC ) | Imax (mA) | TL~TU (℃) |
| TPM2P150M100R | 100±10 | 15 | 40 | 59 | 116 | 140 | 20 | 1600 | -10 ~ +60 | -40~ +125 |
| TPM2P220M100R | 22 | 30 | 44 | 91 | 110 | 1100 |
| TPM2P221M100R | 220 | 10 | 14 | 29 | 35 | 24 | 130 |
1210 Series
| Part No. | Curie temperature | 25℃ Rated Resistance | Non-Operating Current | Tip current | Max Voitage | Max Current | Operating temperature range |
| @ +85℃ | @ +25℃ | @+25℃ | @ -40℃ | @ Vmax | @V=0 |
| Tc (℃) | R25 (Ω) | IN (mA) | IT (mA) | Vmax (VDC ) | Imax (mA) | TL~TU (℃) |
| TPM4P270H110R | 110±10 | 27 | 40 | 90 | 180 | 263 | 30 | 500 | -40 ~ +85 | -40~ +125 |
| TPM4P550H120R | 120±10 | 55 | 34 | 60 | 130 | 190 | 30 | 400 |
| TPM4P121H120R | 120±10 | 120 | 23 | 40 | 90 | 132 | 80 | 300 |
| TPM4P401H090R | 90±10 | 400 | 6 | 15 | 40 | 59 | 265 | 200 |
| TPM4P152S120R | 120±10 | 1500 | 4 | 12 | 22 | 32 | 400 | 150 |
Protection current range(0603Series)
Protection current range(0805Series)
Protection current range(1210Series)
Typical Application Circuit
Packaging
| Size(EIA) | Quantity(Pcs/roll) |
| 0603 | 4,000 |
| 0805 | 3,500 |
| 1210 | 2,500 |
