RCDTFR5
10
THERMAL FUSE RESISTORS, 1/2W to 60W
PERMANENT OR REPLACEABLE FUSE
RESISTORSꢀCAPACITORSꢀCOILSꢀDELAY LINES
ΩΩΩ
5%
TFV3
RCD
100
5%
Ω
Term.W is
RoHS
RCD TF05A
100
compliant
Ω
5%
&
260°C
TF SERIES
RoHS
compatible
RCD’s TF Series construction consists of a thermal fuse welded in
series with a resistor element. The assembly is potted inside a
ceramic case (model TFR fuse is mounted externally in order to
provide field-replaceability of the fuse). Under overload conditions, the
thermal fuse “senses” the temperature rise of the resistor element
and opens upon reaching a predetermined temperature. Devices can
be custom tailored to specific fault conditions and do not require the
large power overloads necessary with other fuse resistors to achieve
proper fusing. Thus, the TF Series offers great safety, since high
temperatures are not involved to achieve fusing. Typical applications
include telecom line cards, repeaters, trunk carrier systems, RFI
suppression, power supply, medical, and automotive circuits.
ꢀ Meets UL, FCC, REA, and EIA requirements
ꢀ Fusing-to-operating current ratio as low as 1.25:1!
ꢀ Fusing times can be custom tailored
ꢀ Precision tolerance to ±0.1%, TC’s to 5ppm available
ꢀ Available on exclusive SWIFTTM delivery program
OPTIONS
ꢀ Option X: Low inductance design
ꢀ Option P: high pulse design (consult factory for assistance)
ꢀ Option A: ceramic case with standoffs (standard on TFV)
ꢀ Customized fuse time/temp, Hi-rel screening & burn-in,
increased V & W, aluminum-housed heat sink design, etc.
--
TFR Series
Fuse is soldered
betweenthe
resistor and metal
mountingbracket,
therefore easily
replaceable in field
TFV Series
TF Series
← B→
← L →
2.45”
Max
↑
1.0 [25.4] Min
← B→
L
C
↑
--
↓E
↑
C
↓
↓
↑
.125”
min.
↓
↓
D
.032”±.004
.150[3.8]
min.
(standoffs apply
.033”
max.
→←
.41”
.400”
to Opt.Aonly, not
avail on TF02)
←
→
.045” dia.
.032x.08” (3PL)
SCHEMATIC
.200±.08
[5.08±2]
.20”
.20”
↑
TFR5
Mounting
Layout
.41”
Min/Max
Fusing
RCD
Wattage
@ 25°C2
Voltage
Rating4
Resistance
L±.032 [.81]
B±.032 [.81] C±.032 [.81]
D6±.032 [.81]
Type1
Range (Std.)5
Range3
TF01S
TF01
TF02
TF04
TF05
TF07
TFV2
TFV3
TFV5
TFV7
TFR5
1W
1W
2W
4W
5W
7W
2W
3W
5W
7W
5W
3W to 100W
5W to 100W
7W to 200W
10W to 400W
15W to 500W
20W to 700W
4W to 200W
6W to 300W
8W to 500W
12W to 700W
7W to 500W
40V
50V
.05Ω to 1KΩ
.05Ω to 4KΩ
.05Ω to 10K
.05Ω to 25K
.05Ω to 40K
.05Ω to 60K
.05Ω to 10K
.05Ω to 20K
.05Ω to 25K
.05Ω to 40K
.05Ω to 40K
.70 [17.8]
.88 [22.4]
.95 [24.1]
1.39 [35.3]
1.88 [47.8]
1.88 [47.8]
.435 [11.0]
.515 [13.0]
.500 [12.7]
.500 [12.7]
.26 [6.6]
.31 [7.9]
.28 [7.1]
.38 [9.7]
.38 [9.7]
.50 [12.7]
.30 [7.6]
.40 [10]
.40 [10]
.40 [10]
.26 [6.6]
.31 [7.9]
.28 [7.1]
.35 [8.9]
.38 [9.7]
.50 [12.7]
.80 [20.3]
1.00 [25.4]
1.52 [38.6]
2.02 [51.3]
.06 [1.5]
.06 [1.5]
N/A
.12 [3.0]
.12 [3.0]
.12 [3.0]
N/A
N/A
N/A
N/A
100V
150V
200V
250V
100V
150V
200V
250V
200V
See illustration above
1 Other sizes available from 1/2W to 60W. 2 Wattage rating based on 167°C fuse, deduct 24% for 133°C and 40% for 110°C. 3 Expanded range available 4 Maximum resistor working voltage determined by
E = ( PR)1/2, E not exceed value listed 5 Resistance range from .005Ω to 1MΩ available. 6 Opt.A standoffs are avalable on TF1/2 - TF07 (not available on TF02)
SPECIFICATIONS (133°C fuse design)
P/NDESIGNATION:
TFV3
- 102 - J
B
W
RCD Type
Tolerance
0.1% to 10% available
Options: X, P, A (leave blank if standard)
Temperature Coefficient ±100ppm standard, T.C.'s to ±5ppm/ avail.
Dielectric Strength
Insulation Resistance
Operating Temp. Range
Derating
500 VAC
Optional Fuse: “110C”= 110°C, “167C”=167°C,
“187C”=187°C, etc. Leave blank for standard 133°C
10,000 megohms min. (dry)
-55 to +120°C ( up to 225°C avail.)
1%/°C above 20°C
Resis. Code 1% & tighter tols: 3 signif. digits & multiplier,
e.g. R100= 0.1Ω, 1R00= 1Ω,1000= 100Ω,1001= 1KΩ.
2%- 5%: 2digits &multiplier R10= .1Ω, 1R0=1Ω,100=10Ω,102=1K
Standard = 133°C 2A 250V. Other popular
models are 110°C, 167°,C and 187°C
(72°C to +240°C available, 0.5A to 25A)
Tolerance: J=5%, G=2%, F=1%, D=.5%, C=.25%, B=.1%
Fuse Rating (±5°C)
Packaging: B = Bulk (standard)
100W
Standard FuseTime: TFV
Series shall fuse within
30S at 20x rated power,
TF and TFR shall fuse
within 30S@30x rated W.
Refer to chart for approx.
fusecurves(custom fusing
available).
Optional TC: 5= 5ppm, 10 = 10ppm, 20 = 20ppm, 30 = 30ppm,
50 = 50ppm (leave blank if std)
50W
30W
Termination: W = Lead-free, Q = Tin/Lead (leave blank if either is acceptable)
TF04
10W
TFR5
If a custom model is required, please advise the continuous wattage
rating, ambient temperature, fusing wattage or current, min/max blow
time, resistance value & tolerance, maximum size, pulse voltage &
waveform, and a general description of the application.
TF02, TFV5
TFV3
TFV2
3W
10 20 30 50 100 200 300 500
Approx. Fusing Time (Seconds)
-
-
-
-
RCD Components Inc, 520 E.Industrial Park Dr, Manchester, NH, USA 03109 rcdcomponents.com Tel: 603 669 0054 Fax: 603 669 5455 Email:sales@rcdcomponents.com
FA099B Sale of this product is in accordance with GF-061. Specifications subject to change without notice.
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