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Thermally Protected Varistors
25mm Standard Series
3-Leaded, Fuse Located on Third Lead

Fuse Configuration and Dimensions

Varistor Type
25mm
T max
W1 max.
W2 max.
201K
7.9 (0.31)
2.1 (0.08)
3.7 (0.15)
221K
8.2 (0.32)
2.2 (0.09)
3.8 (0.15)
241K
8.3 (0.33)
2.3 (0.09)
3.9 (0.15)
271K
8.4 (0.33)
2.4 (0.09)
4.0 (0.16)
301K
8.6 (0.34)
2.6 (0.10)
4.2 (0.17)
331K
8.8 (0.35)
2.8 (0.11)
4.4 (0.17)
361K
8.9 (0.35)
2.9 (0.11)
4.5 (0.18)
391K
9.0 (0.35)
3.1 (0.12)
4.7 (0.19)
431K
9.2 (0.36)
3.3 (0.13)
4.9 (0.19)
471K
9.5 (0.37)
3.5 (0.14)
5.2 (0.20)
511K
9.9 (0.39)
3.7 (0.15)
5.5 (0.22)
561K
10.1 (0.40)
3.9 (0.15)
5.7 (0.22)
621K
10.4 (0.41)
4.2 (0.17)
6.0 (0.24)
681K
10.7 (0.42)
*4.5 (0.18)
*6.3 (0.25)
751K
11.1 (0.44)
*4.8 (0.19)
*6.7 (0.26)
781K
11.3 (0.44)
*5.0 (0.20)
*6.9 (0.27)
821K
11.4 (0.45)
*5.2 (0.20)
*7.1 (0.28)
911K
11.8 (0.46)
*5.6 (0.22)
*7.6 (0.30)
102K
12.4 (0.49)
*6.1 (0.24)
*8.1 (0.32)
112K
12.6 (0.50)
*6.6 (0.26)
*8.7 (0.34)
122K
12.8 (0.50)
*7.0 (0.27)
*9.1 (0.36)

Series
Size
D max
H max
dø nom.
a
b
TVZ25
25mm
28.5 (1.12)
35.0 (1.38)
1.0 (0.039)
12.7 (0.50)
± 1.0 (0.039)
6.5 (0.26)
± 1.2 (0.047)

Note: *Bulk parts for >681 varistor voltage come standard with in-line crimp (see illustration below) for straight disk seating on PC boards. Therefore, W1 and W2 dimensions are not applicable. If required without in-line crimp, please reference “Ordering Information” and add “N”.

in-line_3Lead

*NOTE: For 3 leaded 14mm, 18mm, and 20mm types with in-line crimp, monitor lead is straight. For 25mm types, monitor lead is in-line crimped.

Specifications

Standard Series
Part Number
RoHS Compliant Series
Part Number
Maximum Ratings
Specifications
Maximum Continuous Working Voltage
Maximum Non-Repetitive Surge Current (8/20µs)
Maximum Non-Repetitive Surge Energy (10/1000µs)
Maximum Clamping Voltage at Specified Current (8/20µs)/100A
Nominal Voltage
at 1mA(DC) Current
Typical Capacitance
at 1KHz
VM(AC) RMS
VM(DC)
ITM
WTM
VC
VN(DC) min.
VN(DC) max.
C
(V)
(V)
(A)
(J)
(V)
(V)
(V)
(pF)
TVZ25D201KBS
TVZ25DN201KBS
130
175
18000
200
340
185
225
3080
TVZ25D221KBS
TVZ25DN221KBS
140
180
18000
225
360
198
242
2800
TVZ25D241KBS
TVZ25DN241KBS
150
200
18000
235
395
216
264
2570
TVZ25D271KBS
TVZ25DN271KBS
180
230
18000
245
465
255
311
2280
TVZ25D301KBS
TVZ25DN301KBS
195
250
18000
255
505
270
330
1920
TVZ25D331KBS
TVZ25DN331KBS
210
275
18000
270
540
297
363
1800
TVZ25D361KBS
TVZ25DN361KBS
230
300
18000
315
595
324
396
1650
TVZ25D391KBS
TVZ25DN391KBS
250
330
18000
342
650
351
429
1530
TVZ25D431KBS
TVZ25DN431KBS
275
370
18000
370
710
387
473
1390
TVZ25D471KBS
TVZ25DN471KBS
300
385
18000
390
775
423
517
1270
TVZ25D511KBS
TVZ25DN511KBS
320
420
18000
422
840
459
561
1170
TVZ25D561KBS
TVZ25DN561KBS
360
470
18000
460
910
522
638
1060
TVZ25D621KBS
TVZ25DN621KBS
390
505
18000
495
1025
558
682
960
TVZ25D681KBS
TVZ25DN681KBS
420
560
18000
515
1120
612
748
880
TVZ25D751KBS
TVZ25DN751KBS
460
615
18000
530
1240
675
825
790
TVZ25D781KBS
TVZ25DN781KBS
485
640
18000
540
1240
702
858
760
TVZ25D821KBS
TVZ25DN821KBS
510
675
18000
550
1350
738
902
730
TVZ25D911KBS
TVZ25DN911KBS
550
745
18000
600
1400
819
1001
650
TVZ25D102KBS
TVZ25DN102KBS
625
825
18000
630
1620
900
1100
600
TVZ25D112KBS
TVZ25DN112KBS
680
865
18000
700
1800
962
1175
540
TVZ25D122KBS
TVZ25DN122KBS
750
975
18000
720
2100
1080
1320
500

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