NTC Power Thermistors SCK Series
Inrush Current Limiters MERITEK
UL E223037
FEATURES
x High inrush current capacity
x Small power loss in steady state
(Normally IW or less than 50W power.)
x High thermal and electrical stability
x Wide selection of electrical characteristics
x Special coating material: available silicone
PART NUMBERING SYSTEM
SCK 08 10 3 M
Meritek Series
Element Size (Diameter in m/m)
Zero power resistance at 25 oC(Ω)
2~3 significant digits
Max steady state current at 25 oC(A)
Tolerance
CODE L M
+15% +20%
Lead Type
CODE Blank Y
Straight Kinked Y
Package
CODE Blank TR
Bulk Tape & Reel
DIMENSIONS: Unit: mm
Disc Ø D max L min d P Tmax
05 6.5 29 0.8 ± 0.02 4 ± 0.6 5
08 9.5 25 0.8 ± 0.02 5 ± 0.8 5
10 11.5 25 0.8 ± 0.02 5 ± 0.8 5
13 14.5 25 0.8 ± 0.02 7.5 ± 1 6
15 16.5 25 1.0 ± 0.02 7.5 ± 1 6
20 21.5 24 1.0 ± 0.02 7.5 ± 1 6
25 29 25 1.0 ± 0.02 7.5 ± 1 7
30 36 23 1.0 ± 0.02 7.5 ± 1 8
rev.6a
Specifications are subject to change without notice.
NTC Power Thermistors SCK Series
MERITEK
SPECIFICATIONS
x SCK 05
Thermal
Zero Power Max.Steady Residual Max. Power Dissipation Thermal Operating
o
Part No Resistance State Current Resistance rating at 25 C Constant Time Constant Temperature
at 25oC ( Ƙ ) at 25 oC ( A ) at 25 oC ( mƘ ) (W) ( mW/ oC ) ( Sec. ) (o C )
SCK05-052 5 2 429
SCK05-081 8 1 1089
SCK05101 10 1 1126 1.8 15 17 -40~+150
SCK05-121 12 1 1184
SCK05-20X3 20 0.3 5560
x SCK 08
Thermal
Zero Power Max.Steady Residual Max. Power Dissipation Thermal Operating
o
Part No Resistance State Current Resistance rating at 25 C Constant Time Constant Temperature
at 25oC ( Ƙ ) at 25 oC ( A ) o
at 25 C ( mƘ ) (W) ( mW/ oC ) ( Sec. ) (o C )
SCK08-042 4 2 441
SCK08-04R72 4.7 2 445
SCK08-053 5 3 261
SCK08-063 6 3 283
SCK08-073 7 3 287
2.3 16 38 -40~+170
SCK08-082 8 2 520
SCK08-102 10 2 542
SCK08-152 15 2 548
SCK08-201 20 1 1544
SCK08-30X 30 0.5 4094
x SCK 10
Thermal
Zero Power Max.Steady Residual Max. Power Dissipation Thermal Operating
Part No Resistance State Current Resistance rating at 25 oC Constant Time Constant Temperature
o o o o o
at 25 C ( Ƙ ) at 25 C ( A ) at 25 C ( mƘ ) (W) ( mW/ C ) ( Sec. ) (C )
SCK10-015 1 5 91
SCK10-1R35 1.3 5 101
SCK10-1R55 1.5 5 120
SCK10-2R55 2.5 5 120
SCK10-035 3 5 119
SCK10-044 4 4 161
SCK10-054 5 4 180
SCK10-6R83 6.8 4 180
SCK10-083 8 3 278
SCK10-103 10 3 297
SCK10-123 12 3 301
SCK10-133 13 3 356 2.4 17 43 -40~+170
SCK10-152X 15 2.5 442
SCK10-162X 16 2.5 442
SCK10-202 20 2 646
SCK10-222 22 2 646
SCK10-252 25 2 674
SCK10-302 30 2 700
SCK10-472 47 2 720
SCK10-502 50 2 813
SCK10-801 80 1 2236
SCK10-1001 100 1 2318
SCK10-1201 120 1 2406
NTC Power Thermistors SCK Series
MERITEK
x SCK 13
Thermal
Zero Power Max.Steady Residual Max. Power Dissipation Thermal Operating
o
Part No Resistance State Current Resistance rating at 25 C Constant Time Constant Temperature
at 25oC ( Ƙ ) at 25 oC ( A ) at 25 oC ( mƘ ) (W) ( mW/ oC ) ( Sec. ) (o C )
SCK13-013 1 3 174
SCK13-1R37 1.3 7 70
SCK13-2R56 2.5 6 94
SCK13-045 4 5 132
SCK13-4R74 4.7 4 168
SCK13-055 5 5 166
SCK13-074 7 4 184 3.1 18 66 -40~+200
SCK13-084 8 4 206
SCK13-104 10 4 217
SCK13-124 12 4 230
SCK13-153 15 3 343
SCK13-163 16 3 348
SCK13-183 18 3 365
SCK13-203 20 3 410
x SCK 15
Thermal
Zero Power Max.Steady Residual Max. Power Dissipation Thermal Operating
Part No Resistance State Current Resistance rating at 25 oC Constant Time Constant Temperature
o o o o o
at 25 C ( Ƙ ) at 25 C ( A ) at 25 C ( mƘ ) (W) ( mW/ C ) ( Sec. ) (C )
SCK15-0R78 0.7 8 51
SCK15-018 1 8 54
SCK15-1R38 1.3 8 64
SCK15-1R58 1.5 8 68
SCK15-028 2 8 78
SCK15-2R58 2.5 8 86
SCK15-037 3 7 91
SCK15-046 4 6 117
SCK15-056 5 6 121
SCK15-065 6 5 159
SCK15-075 7 5 161
SCK15-085 8 5 165
SCK15-105 10 5 178 3.6 21 75 -40~+200
SCK15-125 12 5 185
SCK15-154 15 4 261
SCK15-164 16 4 265
SCK15-184 18 4 273
SCK15-204 20 4 283
SCK15-224 22 4 308
SCK15-253 25 3 425
SCK15-303 30 3 461
SCK15-333 33 3 484
SCK15-403 40 3 511
SCK15-473 47 3 517
SCK15-802X 80 2.5 693
SCK15-1202 120 2 1010
NTC Power Thermistors SCK Series
MERITEK
x SCK 20
10 Thermal
Zero Power Max.Steady Residual Max. Power Dissipation Thermal Operating
o
Part No Resistance State Current Resistance rating at 25 C Constant Time Constant Temperature
at 25oC ( Ƙ ) at 25 oC ( A ) at 25 oC ( mƘ ) (W) ( mW/ oC ) ( Sec. ) (o C )
SCK20-0R7 0.7 15 35
SCK20-1R0 1 13 34
SCK20-1R5 1.5 10.5 41
SCK20-2R0 2 10 62
SCK20-2R5 2.5 9 83
SCK20-3R0 3 8.5 78
SCK20-4R0 4 8 80
SCK20-4R7 4.7 7.5 114
SCK20-5R0 5 7.5 118
SCK20-6R0 6 7 120
4.9 28 113 -40~+200
SCK20-6R8 6.8 6.5 130
SCK20-7R0 7 6.5 132
SCK20-8R0 8 6 161
SCK20-100 10 5.5 196
SCK20-120 12 5 197
SCK20-130 13 5 213
SCK20-150 15 4.5 258
SCK20-160 16 4.5 276
SCK20-180 18 4 280
SCK20-200 20 4 306
x SCK 25
Thermal
Zero Power Max.Steady Residual Max. Power Dissipation Thermal Operating
Part No Resistance State Current Resistance rating at 25 oC Constant Time Constant Temperature
at 25oC ( Ƙ ) at 25 oC ( A ) o
at 25 C ( mƘ ) (W) ( mW/ oC ) ( Sec. ) (o C )
SCK25-1R0 1 20 20
SCK25-1R5 1.5 18.5 23
SCK25-2R0 2 18 25
SCK25-2R5 2.5 15 32
SCK25-3R0 3 14.5 42
SCK25-4R0 4 14 44
SCK25-4R7 4.7 13 52
SCK25-5R0 5 12 61 7.0 30 130 -40~+200
SCK25-6R8 6.8 10.5 82
SCK25-7R0 7 10 92
SCK25-8R0 8 9 115
SCK25-100 10 8 141
SCK25-120 12 7.5 164
SCK25-150 15 6.5 210
SCK25-180 18 5.5 231
SCK25-200 20 5 270
NTC Power Thermistors SCK Series
MERITEK
x SCK 30
Thermal
Zero Power Max.Steady Residual Max. Power Dissipation Thermal Operating
o
Part No Resistance State Current Resistance rating at 25 C Constant Time Constant Temperature
at 25oC ( Ƙ ) at 25 oC ( A ) at 25 oC ( mƘ ) (W) ( mW/ oC ) ( Sec. ) (o C )
SCK30-1R0 1 30 16
SCK30-1R5 1.5 25 20
SCK30-2R0 2 23 22
SCK30-2R5 2.5 18 30
SCK30-3R0 3 17 35
SCK30-4R0 4 16 48
SCK30-4R7 4.7 15 55
SCK30-5R0 5 14 57 8.0 40 190 -40~+200
SCK30-6R8 6.8 12 77
SCK30-7R0 7 11.5 84
SCK30-8R0 8 10.5 100
SCK30-100 10 10 115
SCK30-120 12 9 142
SCK30-150 15 8 175
SCK30-180 18 7 210
SCK30-200 20 6 233
