LF2X-R100JB RCD | Alldatasheet
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Technical content
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. /boxshadowup Industry’s widest range! /boxshadowup Withstands lightning surges and power crosses /boxshadowup Resistance range: 0.01Ω to 10KΩ /boxshadowup LF2 1Ω to 1.6K meets UL497A, Bellcore GR1089, ITU-T K.20 /boxshadowup LF2A meets Bellcore TR1089 specifications /boxshadowup Standard tolerance: ±1% or ±5% (available to ±0.01%) /boxshadowup Available on RCD’s exclusive SWIFT TM delivery program!
FEATURES
FAILSAFE FUSIBLE WIREWOUND RESISTORS TYPICAL PERFORMANCE CHARACTERISTICS LF2 SERIES * LF2A resistance range is 1.8Ω to 100Ω OPTIONS /boxshadowup Option A: TR1089 performance /boxshadowup Option X: Non-inductive (0.2µH max ≤50Ω , 0.37µH >50Ω) /boxshadowup Option ER: 100 Hour Burn-In /boxshadowup Customized fusing characteristics /boxshadowup 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 ○○○ → ← APPLICATION NOTES : DCR epyT egattaW C°52@ ecnatsiseR egnaR ]mm[hcnISNOISNEMID AB C D E F 2FLW 0.21 0.0 Ω K01- ∗Ω 20.±540.1 ]5.±5.62[ 20.±054. ]5.±34.11[ 20.±562. ]5.±37.6[ .niM521. ]5.±71.3[ 510.±007. ]4.±87.71[ 510.±009. ]4.±68.22[ gnitareDegattaWC °52>C°/Wm12 )sruoh0001(efiLdaoL% 5.0± ecnatsiseRerutsioM% 1± gnilcyCerutarepmeT) C°021+ot55-(%5.0± daolrevOemiTtrohS) ceS5,W01(%2.0± ytilibapaCegruSgninthgiL 6.52FL Ω K01- 001-8.1A2FL Ω 01,kaepA001/VK1Sµ0001xSµ01 Ω kaep(perS06xseslup05,ecruos ).liavaVK01otpusegatlov tneiciffeoCerutarepmeT 01. Ω 99.ot Ω 1Ω evobadna dradnatSl anoitpO 05,03,02,01mpp09 03,02,01mpp05 erutarepmeTgnitarepO rorehgihebyam(dtsC°021+otC°55- gnidnepedsngisedmotsucnorewol )gnitaresufno ytilibammalF2 -2-596CE,0-V49LU scitsiretcarahCgnisuF FA023B Sale of this product is in accordance with GF-061. Specifications subject to change without notice. LF2 Fusing Range (Seconds, Typ.) 10 20 30 50 100 200 300 500 Power (Watts) 100W 10W 50W 30W 12345678901234 12345678901234 12345678901234 12345678901234 12345678901234 12345678901234 12345678901234 12345678901234 12345678901234 12345678901234 12345678901234 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 /rhombus4CAPACITORS /rhombus4COILS /rhombus4DELAY LINES 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=.1Ω,1R00=1Ω ,10R0=10Ω,1000=100Ω, 1001=1K, etc) Resis.Code 2%-10%: 2 signif. figures & multiplier, 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