MFR WELWYN | Alldatasheet

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Technical content

  • Professional grade approved to BSCECC 40101-803 and 019
  • Tolerances down to 0.5%
  • Temperature coefficient down to 50ppm/°C 5RFM4RFM3RFM 57.05.04.0sttawC°07 ta gnitar rewoP Resistance range ohms 10R - 1M 1R0 - 10M 1R0 - 1M 053053002stlovegatlov tnemele gnitimiL 0505C°/mppRCT ≤10:150 >10:100* 2,1 ,5.02,1 ,5.01%ecnarelot ecnatsiseR General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyn’s own data and is considered accurate at time of going to print. © Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com * Note:- Tighter TCR’S are available on professional grade, consult factory for details. Electrical Data XEZEXFZFelytS 910 - 10104 CCEC devorppA 5.05.052.052.0sttawC°07 ta gnitar rewoP M1 ot 010M1 ot 01M1 ot 1M1 ot 1smho.egnar ecnatsiseR 053053052052stlovegatlov tnemele gnitimiL 052001052001C°/mppRCT 5.1 to 9.1 : 200 5.1 to 9.1 : 500 2,12,12,12,1%ecnarelot ecnatsiseR KCCCKBCBelytS 308 - 10104 CCEC devorppA 52.052.0521.0521.0sttawC°07 ta gnitar rewoP M1 ot 01M1 ot 01M1 ot 01M1 ot 01smho.egnar ecnatsiseR 052052002002stlovegatlov tnemele gnitimiL 0010500105C°/mppRCT 2 ,1 ,5.02 ,1 ,5.02 ,1 ,5.02 ,1 ,5.0%ecnarelot ecnatsiseR derreferp 69E ,42Eseulav dradnatS 211041051ttaw/C°ecnadepmi lamrehT 551 ot 55-C°egnar erutarepmet tneibmA Issue D · 05.07 A subsidiary of TT electronics plc Welwyn Components 135 Dimensions (mm) & Weight (g) Physical Data LD f d MFR3 Professional Commercial Professional Commercial Professional Commercial MFR4 MFR5 Product grades available commercial, professionalcommercial Type L max 3.5 3.7 6.2 6.8 9.0 10.0 1.8 2.0 2.5 3.0 3.6 3.7 22.4 22.4 21.0 21.0 19.6 19.6 0.5 0.45 0.6 0.55 0.8 0.6 7.6 7.6 0.5 10.2 10.2 12.7 12.7 0.5 0.6 0.6 1.2 0.6 0.1 0.1 0.3 0.3 0.5 0.5 D max F min d nom PCB mount centres Min bend radius Wt. nom

© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com Issue D · 05.07 Welwyn Components 136 Graph 1 – Load for 1000 hours at 70°C: maximum changes Graph 2 – Load for 1000 hours at 70°C: maximum changes CECC 40101-019 Actual Performance Requirements Maximum Typical Load at commercial rating : 1000 hours at 70°C /uni2206 1 hparG eeS8.0% R Load at CECC rating : 1000 hours at 70°C /uni2206R % 2 0.5 See Graph 1 Shelf life : 12 months at room temperature /uni2206R % Not Specified 0.1 0.07 C°551 ta orezgnitareD Short term overload /uni2206R % 0.5 0.25 0.03 Climatic /uni2206R % 2 0.5 0.2 65/521/55yrogetac citamilC Long term damp heat /uni2206R % 2 0.5 0.3 Temperature rapid change /uni2206R % 0.5 0.25 0.05 Resistance to solder heat /uni2206R % 0.5 0.25 0.02 Vibration and bump /uni2206R % 0.5 0.1 0.01 70.01.0deificeps toNV/Vµ)ycneuqerf fo edaced a ni( .esioN G1>G1>G1>smhoecnatsiser noitalusnI nim 004nim 004nim 053stlovfoorp egatloV Pulse handling Data available upon request Performance Data - Type MFR 3 CECC 40101-019 CECC 40101-803 Actual Performance Requirements Requirements Maximum Typical Load at commercial rating : 1000 hours at 70°C /uni2206 2 hparG eeS8.0% R Load at CECC rating : 1000 hours at 70°C /uni2206R % 2 1 0.5 See Graph 2 Shelf life : 12 months at room temperature /uni2206R % Not specified Not Specified 0.1 0.07 C°551 ta orezC°551 ta orezgnitareD Short term overload /uni2206R % 0.5 0.25 0.25 0.01 Climatic /uni2206R % 2 1 0.5 0.2 65/521/5565/521/55yrogetac citamilC Long term damp heat /uni2206R % 2 1 0.5 0.3 Temperature rapid change /uni2206R % 0.5 0.25 0.25 0.04 Resistance to solder heat /uni2206R % 0.5 0.25 0.25 0.07 Vibration and bump /uni2206R % 0.5 0.25 0.1 0.01 Noise. (in a decade of frequency) µV/V Not Specified Not Specified 0.1 0.1 Insulation resistance ohms >1G >1G >1G >1G nim 005nim 005nim 004nim 005stlovfoorp egatloV tseuqer nopu elbaliava ataDgnildnah esluP Performance Data - Type MFR 4

All MFR resistors are supplied tape packed ready for loading on to automatic sequencing and insertion machines. Component wires will not protrude beyond the outside edge of the tapes. Alternative packaging available by request. Lead Formed resistors can also be supplied. Standard options of Lancet, Radial and Goalpost forming are available. Graph 3 – Load for 1000 hours at 70°C: maximum changes Construction The resistance element is a precisely controlled thin film of metal alloy sputtered on to a high purity ceramic core, protected by a moisture-resistant, high dielectric strength coating applied so that terminations remain completely clear. Terminations Material Hot tin dipped copper wire Strength The terminations meet the requirements of IEC 68.2.21 Solderability The terminations meet the requirements of IEC 115-1, Clause 4.17.3.2 Marking 0.5% and 1% tolerance resistors are colour coded with 5 bands, 2% tolerance has 4. IEC 62 colours are used. Solvent Resistance The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuits. f1 f2 f1 – f2 ≤ 1.4 mm Metal Film Resistors MFR Series © Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com Issue D · 05.07 Welwyn Components 137 CECC 40101-019 CECC 40101-803 Actual Performance Requirements Requirements Maximum Typical Load at commercial rating : 1000 hours at 70°C /uni2206 3 hparG eeS9.0% R Load at CECC rating : 1000 hours at 70°C /uni2206R % 2 1 0.5 See Graph 3 Shelf life : 12 months at room temperature /uni2206R % Not specified Not Specified 0.1 0.07 C°551 ta orezC°551 ta orezgnitareD Short term overload /uni2206R % 0.5 0.25 0.25 0.01 Climatic /uni2206R % 2 1 0.5 0.2 65/521/5565/521/55yrogetac citamilC Long term damp heat /uni2206R % 2 1 0.5 0.3 Temperature rapid change /uni2206R % 0.5 0.25 0.25 0.04 Resistance to solder heat /uni2206R % 0.5 0.25 0.25 0.07 Vibration and bump /uni2206R % 0.5 0.25 0.1 0.01 Noise. (in a decade of frequency) µV/V Not Specified Not Specified 0.1 0.07 Insulation resistance ohms >1G >1G >1G >1G nim 007nim 007nim 005nim 007stlovfoorp egatloV tseuqer nopu elbaliava ataDgnildnah esluP Performance Data - Type MFR 5

/MT84/MT121/MT112/MT101 /MT86/MT97/MT108/MT117/MT101/MT32/MT40/MT117/MT115/MT101/MT32/MT73/MT69/MT67/MT54/MT50/MT32/MT99/MT111/MT100/MT101/MT41 /MT84/MT111/MT108/MT101/MT114/MT97/MT110/MT99/MT101/MT32/MT40/MT117/MT115/MT101/MT32/MT73/MT69/MT67/MT54/MT50/MT32/MT99/MT111/MT100/MT101/MT41 /MT79/MT114/MT100/MT101/MT114/MT105/MT110/MT103/MT32/MT80/MT114/MT111/MT99/MT101/MT100/MT117/MT114/MT101 /MT69/MT120/MT97/MT109/MT112/MT108/MT101/MT58/MT32/MT80/MT114/MT111/MT102/MT101/MT115/MT115/MT105/MT111/MT110/MT97/MT108/MT32/MT103/MT114/MT97/MT100/MT101/MT32/MT77/MT70/MT82/MT52/MT32/MT97/MT116/MT32/MT52/MT46/MT55/MT32/MT107/MT105/MT108/MT111/MT104/MT109/MT115/MT32/MT97/MT110/MT100/MT32/MT49/MT37/MT32/MT116/MT111/MT108/MT101/MT114/MT97/MT110/MT99/MT101/MT32/MT105/MT110/MT32/MT97/MT109/MT109/MT111/MT32/MT112/MT97/MT99/MT107/MT32/MT98/MT111/MT120/MT32/MT111/MT102/MT32/MT53/MT48/MT48/MT48/MT32/MT112/MT105/MT101/MT99/MT101/MT115/MT32/MT45 /MT77/MT101/MT116/MT97/MT108/MT32/MT70/MT105/MT108/MT109/MT32/MT82/MT101/MT115/MT105/MT115/MT116/MT111/MT114/MT115 /MT77/MT70/MT82/MT52/MT32/MT32/MT45/MT32/MT32/MT52/MT75/MT55/MT32/MT32/MT32/MT32/MT70/MT32/MT32/MT32/MT32/MT73 /MT67 /MT77/MT70/MT82/MT51/MT44/MT32/MT77/MT70/MT82/MT52 /MT77/MT70/MT82/MT53 /MT77/MT70/MT82/MT52 /MT77/MT70/MT82/MT53 /MT42/MT32/MT70/MT111/MT114/MT32/MT67/MT69/MT67/MT67/MT32/MT114/MT101/MT108/MT101/MT97/MT115/MT101/MT100/MT32/MT112/MT114/MT111/MT100/MT117/MT99/MT116/MT32/MT115/MT116/MT97/MT116/MT101/MT32/MT111/MT110/MT32/MT111/MT114/MT100/MT101/MT114/MT32/MT116/MT104/MT101/MT32/MT67/MT69/MT67/MT67/MT32/MT110/MT117/MT109/MT98/MT101/MT114/MT32/MT97/MT110/MT100/MT32/MT115/MT116/MT121/MT108/MT101/MT46 /MT32/MT32/MT32/MT69/MT120/MT97/MT109/MT112/MT108/MT101/MT58/MT32/MT77/MT70/MT82/MT52/MT45/MT52/MT75/MT55/MT70/MT73/MT32/MT67/MT69/MT67/MT67/MT52/MT48/MT49/MT48/MT49/MT45/MT48/MT49/MT57/MT32/MT70/MT90 /MT48/MT46/MT53/MT37 /MT49/MT37 /MT50/MT37 /MT68 /MT70 /MT71 /MT80/MT97/MT99/MT107/MT105/MT110/MT103/MT32/MT47/MT32/MT71/MT114/MT97/MT100/MT101 /MT73/MT115/MT115/MT117/MT101/MT32/MT68/MT32/MT46/MT32/MT48/MT53/MT46/MT48/MT55 /MT169/MT32/MT87/MT101/MT108/MT119/MT121/MT110/MT32/MT67/MT111/MT109/MT112/MT111/MT110/MT101/MT110/MT116/MT115/MT32/MT76/MT105/MT109/MT105/MT116/MT101/MT100/MT32/MT32/MT66/MT101/MT100/MT108/MT105/MT110/MT103/MT116/MT111/MT110/MT32/MT78/MT111/MT114/MT116/MT104/MT117/MT109/MT98/MT101/MT114/MT108/MT97/MT110/MT100/MT32/MT78/MT69/MT50/MT50/MT32/MT55/MT65/MT65/MT44/MT32/MT85/MT75 /MT84/MT101/MT108/MT101/MT112/MT104/MT111/MT110/MT101/MT58/MT32/MT43/MT52/MT52/MT32/MT40/MT48/MT41/MT32/MT49/MT54/MT55/MT48/MT32/MT56/MT50/MT50/MT49/MT56/MT49/MT32/MT32/MT70/MT97/MT99/MT115/MT105/MT109/MT105/MT108/MT101/MT58/MT32/MT43/MT52/MT52/MT32/MT40/MT48/MT41/MT32/MT49/MT54/MT55/MT48/MT32/MT56/MT50/MT57/MT52/MT54/MT53/MT32/MT32/MT69/MT109/MT97/MT105/MT108/MT58/MT32/MT105/MT110/MT102/MT111/MT64/MT119/MT101/MT108/MT119/MT121/MT110/MT45/MT116/MT116/MT46/MT99/MT111/MT109/MT32/MT32/MT87/MT101/MT98/MT115/MT105/MT116/MT101/MT58/MT32/MT119/MT119/MT119/MT46/MT119/MT101/MT108/MT119/MT121/MT110/MT45/MT116/MT116/MT46/MT99/MT111/MT109 /MT73 /MT65/MT109/MT109/MT111 /MT53/MT48/MT48/MT48/MT47/MT98/MT111/MT120 /MT50/MT53/MT48/MT48/MT47/MT98/MT111/MT120 /MT53/MT48/MT48/MT48/MT47/MT98/MT111/MT120 /MT50/MT53/MT48/MT48/MT47/MT98/MT111/MT120 /MT67/MT69/MT67/MT67/MT32/MT114/MT101/MT108/MT101/MT97/MT115/MT101/MT32/MT105/MT115/MT32/MT110/MT111/MT116/MT32/MT97/MT118/MT97/MT105/MT108/MT97/MT98/MT108/MT101/MT32/MT102/MT111/MT114/MT32/MT99/MT111/MT109/MT109/MT101/MT114/MT99/MT105/MT97/MT108/MT32/MT103/MT114/MT97/MT100/MT101 /MT67/MT69/MT67/MT67/MT32/MT114/MT101/MT108/MT101/MT97/MT115/MT101/MT32/MT105/MT115/MT32/MT111/MT112/MT116/MT105/MT111/MT110/MT97/MT108/MT108/MT121/MT32/MT97/MT118/MT97/MT105/MT108/MT97/MT98/MT108/MT101/MT32/MT102/MT111/MT114/MT32/MT112/MT114/MT111/MT102/MT101/MT115/MT115/MT105/MT111/MT110/MT97/MT108/MT32/MT103/MT114/MT97/MT100/MT101/MT32/MT42 /MT77/MT70/MT82/MT32/MT83/MT101/MT114/MT105/MT101/MT115