High voltage metal surge resistors MSR25/37/37L/52
Dimensions ( mm )
TYPE D
Max.
L 1
max.
L 2
max.
d
(±0.05)
MSR25 2.7 6.5 7.5 0.6
MSR37 4.0 9.0 12 0.7
MSR37L 4.0 12 14 0.8
MSR52 6.0 16.5 18.5 0.8
QUICK REFERENCE DATA
VALUE
DESCRITION SR25 SR37 SR37L SR52
resistance range 10 ㏀to 15 ㏁
10 ㏀to 100 ㏁
resistance tolerance ±5%, ±2%, ±1% ( E24, E48 series )
temperature coefficient :
R≤4.7㏁± 250 ppm / ℃ R >4.7 ㏁± 350 ppm / ℃
rated dissipation
at Tamb = 70 ℃ 0.25 W 0.5 W 1Ws 1W
max. working voltage 1000 V 2000 V 3500 V 7000 V
max. overload voltage 1600 V 3600 V 7000 V 10000 V
dielectric withstanding
voltage(during 1 min.) ac, 700V ac, 700V ac, 700V ac, 700V
basic specifications IEC 60 115-1B
safety requirements - UL:1676
CSA:22.2
VDE:0860 - C-UL
(CSA22.2)
VDE:0860
climatic category (IEC60)
55 / 155 / 56
stability, ∆R/R max. after
load : 1000 hours ± 1.5% +0.05Ω
damp heat : 56days ± 1.5% +0.05Ω
soldering heat ± 0.5% +0.05Ω
0.25W 0.5W 1Ws and 1W
high voltage surge: ±10%
(1nFor10nFcapacitor2.5s
charge 2.5s discharge pulse
10 times. 1pulse/5sec,max.)
11 ㏀- 91K:3KV
100 ㏀- 470K:5KV
510 ㏀- 33 ㏁:7KV
(1000pF capacitor)
51 ㏀- 470 ㏀:7KV
510 ㏀- 56 ㏁:10KV
(0.01 ㎌capacitor)
10KV
(0.01 ㎌capacitor)
• New product
• Low cost
• Excellent anti-surge characteristics
• Good replacement for metal
glazed resistors.
APPLICATIONS
• CRT-RGB witch is used TV,monitor
• Devices which need protection
surge voltage between power
preliminary and secondary.
DESCRIPTION
The multi layer metal film is 3 layers
deposited on a high grade ceramic
body. After that helical groove has
been cut by laser at the resistive
layer, tinned elec
trolytic copper wire
are welded to the end-caps.
The resistors are coated with a brown
and blue non flammable lacquer
which provides electrical, mechanical,
and climatic protection.