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LF2ER-1R0GB Arkusz danych(PDF) 1 Page - RCD COMPONENTS INC.

Numer części LF2ER-1R0GB
Szczegółowy opis  FAILSAFE FUSIBLE WIREWOUND RESISTORS
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Producent  RCD [RCD COMPONENTS INC.]
Strona internetowa  http://www.rcdcomponents.com
Logo RCD - RCD COMPONENTS INC.

LF2ER-1R0GB Arkusz danych(HTML) 1 Page - RCD COMPONENTS INC.

  LF2ER-1R0GB Datasheet HTML 1Page - RCD COMPONENTS INC.  
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RCD type LF2 is designed to provide circuit protection for
telecom applications, such as line feed, ADSL, HDSL, and
switching networks, as well as snubber circuits, switching
regulators, power faults, etc. The LF2 is a combination power
resistor and isolated thermal fuse housed in a ceramic case.
The combination enables the device to withstand short-time
overloads (various lightning surges, AC power crosses, inrush
currents, and ESD pulses), yet open safely under extended
overload conditions. The all-welded internal construction
combined with highest grade materials ensures utmost
performance and reliability. For even greater protection under
power cross conditions, as required by TR1089, specify LF2A.
Industry’s widest range!
Withstands lightning surges and power crosses
Resistance range: 0.01
Ω to 10KΩ
LF2 1
Ω to 1.6K meets UL497A, Bellcore GR1089, ITU-T K.20
LF2A meets Bellcore TR1089 specifications
Standard tolerance: ±1% or ±5% (available to ±0.01%)
Available on RCD’s exclusive SWIFT TM delivery program!
FEATURES
FAILSAFE FUSIBLE WIREWOUND RESISTORS
TYPICAL PERFORMANCE CHARACTERISTICS
LF2 SERIES
* LF2A resistance range is 1.8
Ω to 100Ω
OPTIONS
Option A: TR1089 performance
Option X: Non-inductive (0.2µH max
≤50Ω, 0.37µH >50Ω)
Option ER: 100 Hour Burn-In
Customized fusing characteristics
Matched pairs or groups
Failsafe surge resistors are often tailored to particular customer
requirements. Consultation with RCD’s Engineering department is
recommended on all applications to ensure optimum performance
at the most cost-effective price. Depending on the application,
Series LF2 or LF2A can often satisfy the requirements of UL497A,
UL1950, UL1459, FCC Part 68, REA 397 & PE60, Bellcore
GR1089 & TR1089, ITU-T K.20 & K.21, VDE 0750, IEC 1000-4,
CCITT K17, IEEE 472 &587, ANSI C37.90 & C62.41, SAE J1113,
MIL-STD-704, MIL-STD-1399, & MIL-STD-1275.
HOW TO USE LF2
Pin #1 and #2 shall be shorted
together by the user on the PCB.
The LF2 resistor is connected
into the circuit via pins #3 and #4.
1 2
3 4
A
E
D
|
C
|
B
F
1 2
3 4
.032” Pin 1 & 4,
.023” Pin 2 & 3
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FA023B
Sale of this product is in accordance with GF-061. Specifications subject to change without notice.
LF2FusingRange(Seconds,Typ.)
10
20 30 50 100 200 300 500
100W
10W
3W
50W
30W
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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
RESISTORS CAPACITORS COILS DELAY LINES
83
Termination: W=Pb-free, Q=Sn/Pb (leave blank if either is acceptable)
Optional Temp. Coefficient (leave blank for standard):
5=5ppm, 10 = 10ppm, 20 = 20ppm, etc.
P/N DESIGNATION:
RCD Type
Resis.Code 1%: 3 signif. figures & multiplier,
(R100=.1
Ω,1R00=1Ω,10R0=10Ω,1000=100Ω, 1001=1K, etc)
Resis.Code 2%-10%: 2 signif. figures & multiplier,
(R10=0.1
Ω, 1R0=1Ω, 100=10Ω, 101=100Ω, 102=1K, etc)
Packaging: B = Bulk (standard)
LF2
- 1001 -
F B
W
Tolerance Code: J=5%, H=3%, G=2%, F=1%
Options: X, ER, A
(leave blank for standard)
RoHS
Term.W is
RoHS
compliant
& 260°C
compatible


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