FRNSeries
Flame-Proof Fusible Resistors
MERITEK
Superior quality fusible resistors, which are flameproof during
operation
These resistors fuse in less than 30 seconds at 16 times rated power
PART NUMBERING SYSTEMS
FRN
1W - 103
J
TR
Meritek Series
Power Rating
CODE
½W
0.5W
1WS
1W
1W
1W
2WS
2W
2W
2W
Resistance
First 2 digits are significant
3rd digit is multiplier
“R” indicates decimal value below 10 ohm
Tolerance
DERATING CURVE
Code
Tolerance (%)
J
5
TR: Tape & Reel
B: Bulk
DIMENSIONS
STYLE
DIMENSIONS (mm)
LIMITING ELEMENT VOLTAGE
RESISTANCE RANGE
Normal
Miniature
L
D
d
Normal
Miniature
FRN1/4W
FRN1/2W
FRN1W
FRN1/2WS
FRN1WS
FRN2WS
FRN3WS
200V
250V
300V
350V
250V
300V
350V
400V
6.3 0.5
9.0 0.5
11.5 1.0
15.5 1.0
2.3 0.3
3.2 0.5
4.5 0.5
5.0 0.5
0.55 0.03
0.65 0.03
0.78 0.03
0.78 0.03
4R7 ~1K
1 ~1K
1 ~1K
FRN2W
1 ~1K
ELECTRICAL CHARACTERISTICS
FUSING CHARACTERISTICS
Temperature Coefficient
Short time overload
Insulation resistance
Load life
350ppm
(2%+0.05 )
1000M
(5%+0.05 )
Terminal Strength
Solder ability
Dielectric withstanding voltage
Operating temperature range
Tolerance
Tensile: 2.5kg
95% min overage
500V
-40oC to +155oC
5%
Selection series
Working voltage
E-24
at 70oC
P
* R
Specifications are subject to change without notice.
rev.6a