FRN25J100R Datasheet, PDF (1/3 Pages) Tyco Electronics – Flame-Proof Fusible Resistors

Flame-Proof Fusible Resistors
Type FRN Series
Type FRN Series
Characteristics -
Electrical
The resistive element comprises a
resistive film sputtered onto a ceramic
element. Metal end caps are force
fitted to the element prior to spiralling.
Tinned copper lead wires are welded to
the end caps and the components are
then coated with four layers of a flame-
proof cement. All resistors are tested
for value and tolerance. The technology
allows the manufacture of custom
fusible characteristics.
Rated Power @ 70°C (W)
Resistance Range (Ohms) Min
Max
Tolerance (%)
Code letter
Temperature Coefficient (ppm/°C)
Selection Series
Limiting Element Voltage
Max Permitted Element Voltage
Max Overload Voltage
Max Intermittent Overload Voltage
Max Withstand Voltage After Fusing
Operating Temp. Range (°C)
Climatic Category
Insulation Resistance
Min Dry (ohms)
Dimensions
FRN25
0.25
R12
12K
250
250
500
500
300
FRN50S
0.5
R12
12K
±350
250
250
500
500
350
FRN100S
1
R33
10K
5
J
E12
300
300
600
600
450
-55 to +155
55/155/56
1000M
FRN200S
2
R30
1K0
FRN300S
3
R30
1K0
±200 (-30°C to +150°C)
300
300
350
350
600
600
600
600
450
450
Key Features
■ Superior quality
resistors with fusing
characteristics for
overload conditions.
■ Flame-proof during
fusing.
■ Ideal for use in safety-
critical and circuit
protection applications.
■ These resistors fuse in
less than 60 seconds at
16 times rated power.
(See table)
Style
L
D
d Nom
l
FRN25
6.3 ±0.5
2.3 ±0.3
0.54
25.0
FRN50S
6.3 ±0.5
2.3 ±0.3
0.54
25.0
FRN100S
9.0 ±0.5
3.2 ±0.5
0.54
25.0
FRN200S
11.0 ±1.0
4.5 ±1.0
0.70
25.0
FRN300S
15.0 ±1.0
5.5 ±1.0
0.80
25.0
Derating Curve -
FRN25, FRN50S, FRN100S
100
80
60
40
20
0
40
60 70 80 100 120 140 160
Ambient Temperature (°C)
FRN200S, FRN300S
100
80
60
40
20
0
20
60 70 100 140 180 220 260
Ambient Temperature (°C)
Literature No. 1773218
Issued: 10-08
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
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