FTR14D431K
Metal Oxide VaristorThe FTR14D431K is a metal oxide varistor from FTR. View the full FTR14D431K datasheet below including key specifications, electrical characteristics.
Official FTR14D431K datasheet (PDF) — the source this page was extracted from.
FTR14D431K Key Specifications
| Parameter | Value |
|---|---|
| Clamping Voltage | 710V |
| Current - Surge | 4500 A |
| Energy | 115J |
| Energy | 115J |
| Maximum AC Volts | 275V |
| Maximum AC Volts | 275 V |
| Maximum DC Volts | 350 V |
| Maximum DC Volts | 350V |
| Mounting Type | Through Hole |
| Number of Circuits | 1 |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | Disc 14mm |
| Rated Wattage | 600mW |
| Varistor Voltage | 387V~473V |
| Varistor Voltage (Max) | 473 V |
| Varistor Voltage (Min) | 387 V |
| Varistor Voltage (Typ) | 430 V |
FTR14D431K Overview
Part: FTR14D431K (high-surge variant FTR14D431KJ), 14Φ Series
Type: Metal Oxide Varistor (MOV), radial leaded disc
Description: 14 mm disc MOV with 275 VAC / 350 VDC maximum allowable voltage, 430 V varistor voltage at 1 mA, 710 V maximum clamping voltage at 50 A, and 4500 A surge current withstand (6000 A for the high-surge version).
Operating Conditions:
- Supply voltage: not applicable (continuous voltage rating 275 VAC RMS / 350 VDC)
- Operating temperature: -40 to +105 °C (a -40 to +125 °C option is also listed)
- Storage temperature: -40 to +125 °C
Absolute Maximum Ratings:
- Storage temperature: -40 to +125 °C
Key Specs:
- Maximum allowable voltage: 275 VAC / 350 VDC
- Varistor voltage V1mA: 430 V (387–473 V)
- Maximum clamping voltage: 710 V at Ip = 50 A (8/20 μs)
- Withstanding surge current (8/20 μs, one time): 4500 A standard, 6000 A high surge
- Maximum energy (10/1000 μs): 115 J standard, 155 J high surge
- Rated power: 0.6 W
- Leakage current at 83% of V1mA: ≤25 μA (820K–182K series range, which includes 431K)
- Varistor voltage temperature coefficient: ≤0.05 %/°C
- Surge life: 10,000 pulses at 150 A (8/20 μs), ΔVb/Vb ≤ ±10%
- Maximum thickness Tmax: 5.2 mm
Features:
- Fast response to transient over-voltage
- Large transient energy absorption capability
- Low clamping ratio and no follow-on current
- MSL level 1 per J-STD-020
- Agency recognition: UL 1449 4th / cUL / TUV / VDE / CQC
Applications:
- Power supply, telecommunication, smart meter, PLC protection
- Surge protection in consumer and industrial electronics
- Surge protection in home appliances, gas and petroleum appliances
- Relay and electromagnetic valve surge absorption
Package:
- Radial leaded disc, 14 mm series (D max 16 mm, H max 19 mm, lead spacing F 7.5 mm, lead diameter 0.8 mm)
- Bulk (terminals untrimmed or trimmed), Tape & Box, or Tape & Reel
FTR14D431K Features
- ■ Fast responding to transient over-voltage
- ■ Large absorbing transient energy capability
- ■ Low clamping ratio and no follow-on current
- ■ Meets MSL level 1, per J-STD-020
- ■ Operating Temperature : -40 °C ~ +105 °C &-40 °C ~ +125 °C
- ■ Storage Temperature : -40 °C ~ +125 °C
- ■ Agency recognition: UL 1449 4th /cUL/TUV/VDE/CQC
FTR14D431K Applications
- ■ Power supply, Telecommunication, Smart meter, or PLC protection
- ■ Surge protection in consumer electronics
- ■ Surge protection in industrial electronics
- ■ Surge protection in electronic home appliances, gas and petroleum appliances
- ■ Relay and electromagnetic valve surge absorption
FTR14D431K Electrical Characteristics
| Part Number - Standard | Part Number - High Surge | Maximum Allowable Voltage - V AC (V) | Maximum Allowable Voltage - V DC (V) | Varistor Voltage - V 1mA (V) | Maximum Clamping Voltage - I P (A) | Maximum Clamping Voltage - V C (V) | Withstanding Surge current - (A) Standard | Withstanding Surge current - (A) High Surge | Maximum Energy (10/1000μs) - (J) Standard | Maximum Energy (10/1000μs) - (J) High Surge | Rated Power - (W) | Dimension Tmax - (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FTR14D180K | FTR14D180KJ | 11 | 14 | 18(15~21.6) | 10 | 36 | 1000 | 2000 | 4 | 7 | 0.1 | 5.0 |
| FTR14D220K | FTR14D220KJ | 14 | 18 | 22(19.5~26) | 10 | 43 | 1000 | 2000 | 5 | 8 | 0.1 | 5.0 |
| FTR14D270K | FTR14D270KJ | 17 | 22 | 27(24~31) | 10 | 53 | 1000 | 2000 | 6 | 10 | 0.1 | 5.0 |
| FTR14D330K | FTR14D330KJ | 20 | 26 | 33(29.5~36.5) | 10 | 65 | 1000 | 2000 | 7.5 | 12 | 0.1 | 5.0 |
| FTR14D390K | FTR14D390KJ | 25 | 31 | 39(35~43) | 10 | 77 | 1000 | 2000 | 8.6 | 13 | 0.1 | 5.0 |
| FTR14D470K | FTR14D470KJ | 30 | 38 | 47(42~52) | 10 | 93 | 1000 | 2000 | 10 | 17 | 0.1 | 5.0 |
| FTR14D560K | FTR14D560KJ | 35 | 45 | 56(50~62) | 10 | 110 | 1000 | 2000 | 11 | 20 | 0.1 | 5.0 |
| FTR14D680K | FTR14D680KJ | 40 | 56 | 68(61~75) | 10 | 135 | 1000 | 2000 | 14 | 24 | 0.1 | 5.0 |
| FTR14D820K | FTR14D820KJ | 50 | 65 | 82(74~90) | 50 | 135 | 4500 | 6000 | 22 | 27 | 0.6 | 5.0 |
| FTR14D101K | FTR14D101KJ | 60 | 85 | 100(90~110) | 50 | 165 | 4500 | 6000 | 28 | 33 | 0.6 | 4.2 |
| FTR14D121K | FTR14D121KJ | 75 | 100 | 120(108~132) | 50 | 200 | 4500 | 6000 | 32 | 40 | 0.6 | 4.4 |
| FTR14D151K | FTR14D151KJ | 95 | 125 | 150(135~165) | 50 | 250 | 4500 | 6000 | 40 | 53 | 0.6 | 4.0 |
| FTR14D181K | FTR14D181KJ | 115 | 150 | 180(162~198) | 50 | 300 | 4500 | 6000 | 50 | 60 | 0.6 | 4.1 |
| FTR14D201K | FTR14D201KJ | 130 | 170 | 200(180~220) | 50 | 340 | 4500 | 6000 | 57 | 70 | 0.6 | 4.2 |
| FTR14D221K | FTR14D221KJ | 140 | 180 | 220(198~242) | 50 | 360 | 4500 | 6000 | 60 | 78 | 0.6 | 4.3 |
| FTR14D241K | FTR14D241KJ | 150 | 200 | 240(216~264) | 50 | 395 | 4500 | 6000 | 63 | 84 | 0.6 | 4.4 |
| FTR14D271K | FTR14D271KJ | 175 | 225 | 270(243~297) | 50 | 455 | 4500 | 6000 | 70 | 99 | 0.6 | 4.6 |
| FTR14D301K | FTR14D301KJ | 190 | 250 | 300(270~330) | 50 | 500 | 4500 | 6000 | 77 | 108 | 0.6 | 4.7 |
| FTR14D331K | FTR14D331KJ | 210 | 275 | 330(297~363) | 50 | 550 | 4500 | 6000 | 85 | 115 | 0.6 | 4.7 |
| FTR14D361K | FTR14D361KJ | 230 | 300 | 360(324~396) | 50 | 595 | 4500 | 6000 | 93 | 130 | 0.6 | 4.9 |
| FTR14D391K | FTR14D391KJ | 250 | 320 | 390(351~429) | 50 | 650 | 4500 | 6000 | 100 | 140 | 0.6 | 5.0 |
| FTR14D431K | FTR14D431KJ | 275 | 350 | 430(387~473) | 50 | 710 | 4500 | 6000 | 115 | 155 | 0.6 | 5.2 |
| FTR14D471K | FTR14D471KJ | 300 | 385 | 470(423~517) | 50 | 775 | 4500 | 6000 | 118 | 175 | 0.6 | 5.4 |
| FTR14D511K | FTR14D511KJ | 320 | 415 | 510(459~561) | 50 | 845 | 4500 | 6000 | 121 | 180 | 0.6 | 5.6 |
| FTR14D561K | FTR14D561KJ | 350 | 460 | 560(504~616) | 50 | 925 | 4500 | 6000 | 125 | 185 | 0.6 | 5.8 |
| FTR14D621K | FTR14D621KJ | 385 | 505 | 620(558~682) | 50 | 1025 | 4500 | 6000 | 128 | 190 | 0.6 | 6.1 |
| FTR14D681K | FTR14D681KJ | 420 | 560 | 680(612~748) | 50 | 1120 | 4500 | 6000 | 130 | 200 | 0.6 | 6.4 |
| FTR14D751K | FTR14D751KJ | 460 | 615 | 750(675~825) | 50 | 1240 | 4500 | 6000 | 143 | 210 | 0.6 | 6.5 |
| FTR14D781K | FTR14D781KJ | 485 | 640 | 780(702~858) | 50 | 1290 | 4500 | 6000 | 148 | 220 | 0.6 | 6.6 |
| FTR14D821K | FTR14D821KJ | 510 | 670 | 820(738~902) | 50 | 1355 | 4500 | 6000 | 157 | 235 | 0.6 | 6.8 |
| FTR14D911K | FTR14D911KJ | 550 | 745 | 910(819~1001) | 50 | 1500 | 4500 | 6000 | 175 | 255 | 0.6 | 7.1 |
| FTR14D102K | FTR14D102KJ | 625 | 825 | 1000(900~1100) | 50 | 1650 | 4500 | 6000 | 190 | 280 | 0.6 | 7.1 |
| FTR14D112K | FTR14D112KJ | 680 | 895 | 1100(990~1210) | 50 | 1815 | 4500 | 6000 | 213 | 310 | 0.6 | 7.6 |
| FTR14D122K | FTR14D122KJ | 750 | 990 | 1200(1080~1320) | 50 | 1980 | 4500 | 6000 | 232 | 324 | 0.6 | 8.0 |
| FTR14D142K | FTR14D142KJ | 880 | 1140 | 1400(1260~1540) | 50 | 2310 | 4500 | 6000 | 238 | 327 | 0.6 | 8.6 |
Notes: 1. The tolerance of varistor voltage between 18V and 27V is more than 10%.
| Part Number - Standard | Part Number - High Surge | 14Φ Series - Maximum Allowable Voltage - V AC (V) | 14Φ Series - Maximum Allowable Voltage - V DC (V) | 14Φ Series - Varistor Voltage - V 1mA (V) | 14Φ Series - Maximum Clamping Voltage - I P (A) | 14Φ Series - Maximum Clamping Voltage - V C (V) | 14Φ Series - Withstanding Surge current - (A) Standard | 14Φ Series - Withstanding Surge current - (A) High Surge | 14Φ Series - Maximum Energy (10/1000μs) - (J) Standard | 14Φ Series - Maximum Energy (10/1000μs) - (J) High Surge | 14Φ Series - Rated Power - (W) | 14Φ Series - Dimension Tmax - (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FTR14D162K | FTR14D162KJ | 1000 | 1280 | 1600(1440~1760) | 50 | 2640 | 4500 | 6000 | 243 | 331 | 0.6 | 9.3 |
| FTR14D182K | FTR14D182KJ | 1100 | 1465 | 1800(1620~1980) | 50 | 2970 | 4500 | 6000 | 250 | 335 | 0.6 | 10.1 |
- Varistor voltage ≥ 1200V, structure diagram is F type.
- Leakage Current (@83% of V1mA) : IR ≤ 50μ A (180K
680K) ; IR ≤ 25μ A (820K182K)
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| FTR14D | FTR | — |
| FTR14D431KJ | FTR | — |
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