RESISTORS
wCAPS&COILSwDELAYLINES
FUSIBLE CHIP RESISTORS
L
FC SERIES
FEATURES
T
t
r Industry’s widest range of fusible chip resistors!
r Perform like conventional chip resistors under normal
conditions but fuse when subject to overloads
r 7 standard sizes from 0402 to 2512
W
Surface Mount Circuit Protection!
r Wide resistance range: 1Ω to 10K standard
r Standard tolerance: ±5%,10% (1%,2% available)
RCD Series FC resistors offer a low cost approach to circuit
protection in case of overload or component failure. The resistor
is designed to act as a conventional resistor under normal
operating conditions, but will quickly open under continuous
overload. Standard fusing characteristics can be altered to
customer requirements.
OPTIONS
r Option ER: Group A screening per Mil-PRF-55342
r Customized fusing times
r Extended resistance range
RCD Wattage Max. Hold-Off Resistance
DIMENSIONS
Type
Rating
Voltage
Range
L
W
T
t
FC0402 .063W
FC0603 .10W
FC0805 .125W
FC1206 .25W
50V1
1Ω to 2KΩ2
.040± .004 [1.0±.10] .020 ± .002 [0.5 ± .05] .014 ± .004 [.35 ± .15] .010 ± .005 [.25 ± .12]
100V1
150V1
200V1
1Ω to 3.6KΩ2 .063 ± .008 [1.6 ± .20] .031 ± .005 [0.8 ± .13] .018 ± .006 [.45 ± .15] .012 ± .008 [.30 ± .20]
1Ω to 5.1KΩ2 .079 ± .008 [2.0 ± .20] .050 ± .006 [1.25 ± .15] .018 ± .006 [.45 ± .15] .014 ± .008 [.35 ± .20]
1Ω to 10KΩ2 .126 ± .008 [3.2 ± .20] .063 ± .008 [1.6 ± .20] .020 ± .006 [.50 ± .15] .020 ± .010 [.51 ± .25]
FC1210 .50W
FC2010 .75W
FC2512 1.0W
250V1
300V1
400V1
1Ω to 10KΩ2 .126 ± .008 [3.2 ± .20] .098 ± .008 [2.5 ± .20] .024 ± .008 [.61 ± .20] .020 ± .010 [.51 ± .25]
1Ω to 10KΩ2 .197 ± .008 [5.0 ± .20] .100 ± .008 [2.6 ± .20] .024 ± .008 [.61 ±. 20] .020 ± .010 [.51 ± .25]
1Ω to 10KΩ2 .248 ± .008 [6.3 ± .20] .124 ± .010 [3.2 ± .25] .024 ± .008 [.61 ± .20] .030 ± .018 [.75 ± .46]
1Open circuit voltage (consult factory for increased voltage rating) 2Extended resistance range available
TYPICAL PERFORMANCE CHARACTERISTICS
REQUIREMENTS
CHARACTERISTICS
TEST METHOD
Fusing Characteristic
FC0402: <30 sec at 40X rated W
FC0603: <30 sec at 30X rated W
FC0805: <30 sec at 25X rated W
>FC0805: <30 sec at 15X rated W
Unmounted, 25°C, residual resistance
to be a minimum of 100X the original
value
CONSTRUCTION
Environmental Seal
1Ω to 4.7Ω: 250ppm/°C
Temperature Coefficient
25°C to +125°C
Fusible Resistive film
>4.7Ω: 200ppm/°C
Marking available
(specify Opt. A)
Resistance to Soldering Heat
High Temperature Exposure
Low Temp. Operation
Moisture Resistance
Load Life (1000 hours)
Thermal Shock
± 0.25%
260 ± 5°C, 3 seconds
± 0.5%
± 0.5%
± 1.5%
± 5%
100 hours @ +125°C
Alumina
Substrate
-55°C, 1 hour
Inner Electrode
Mil-PRF-55342
Nickel Barrier
Solder Plating
Rated W per Mil-PRF-55342 4.8.11.1
-55°C to +125°C, 0.5 hours, 5 cycles
MIL-Std-202, Method 208
± 0.5%
95% (Min.)
Solderability
Dielectric Withstanding Voltage 250V (100V 0402 & 0603) 60 Seconds, terminal to ceramic
APPLICATION NOTES:
P/N DESIGNATION:
1. Fuse resistors may reach elevated temperatures prior to
opening, particularly if subjected to insufficient overloads.
Customers should evaluate product for suitability under
all possible overload scenarios.
FC1206
-
102 -
J
T
RCD Type
Option Codes: ER, A, etc.
(leave blank if standard)
2. Exercise care when testing fuse resistors, i.e. place the
resistors inside a flameproof protective case, etc.
3. Fusing time varies depending on the amount of “heat sinking”
involved, i.e. PCB material, pad size, trace thickness, etc.
Customers should evaluate fuse resistors in actual-use
Resis.Code 1%: 3 signif. figures & multiplier,
(1R00=1Ω, 10R0=10Ω, 1000=100Ω, 1001=1K, 1002=10K)
Resis.Code 2%-10%: 2 signif. figures & multiplier,
(1R0=1Ω, 100=10Ω, 101=100Ω, 102=1K, 103=10K)
Tolerance Code: F= 1%, J= 5%, K=10%
Packaging: B = Bulk, T = Tape & Reel
RCD Components Inc., 520 E. Industrial Park Dr., Manchester, NH, USA 03109
Tel: (603) 669-0054 Fax:(603) 669-5455 E-mail: sales@rcdcomponents.com www.rcdcomponents.com
FA021B specifications subject to change without notice