LowValue ValueFlat Flat Low Resistors Resistors LowValue ValueFlat Flat Low J i | oc | bKe = NOLOPLM =W NM WM =~OE=N = m~OE=N i Jo i oc bKe nC=nC= = NOLOPLM Q= =Q= NM MT= ^T= j =^=j m ChipResistor Resistor Chip Chip Resistor Chip Resistor Low Value Flat Chip Resistor Low Value Chip Resistor Low Value Flat Chip Resistor Low Value Flat Low Value Flat LRC/LRF Series LRC/LRF Series LR Series LR Series Chip Chip Resistor LRC/LRF Series LRC/LRF Series * Standard 2512, 2010 and 1206 sizes *Resistor Standard 2512, 2010 and 1206 sizes Make Possible Make Possible Welwyn Components Welwyn Components Welwyn Components Welwyn Components Welwyn Components Welwyn Components Standard 2512, 2010 and 1206 sizes Standard and 1206 sizes *2010 Resistance values down 0.003 ohms *2512, Resistance values down to to 0.003 ohms LR Series 2512, Standard 2010 and 1206 sizes ** Standard 2512, 2010 and 1206 sizes Resistance values down to 0.003 ohms Resistance values down to 0.003 ohms * Leach resistant solder-plated copper * values Leach resistant solder-plated *Resistance Resistance down to 0.003 ohms copper LRC/LRF Series *LRC/LRF values down 0.003 ohms Series Standard 2512, 2010 and to 1206 sizes Leach resistant solder-plated copper wrap-around termination wrap-around termination Leach resistant solder-plated copper wrap-around termination wrap-around termination Leach resistant solder-plated copper ** *Leach resistant solder-plated copper * Standard 2512, 2010 and 1206 sizes Resistance values down to 0.003 ohms Standard 2512, 2010 and 1206 sizes AEC-Q200 AEC-Q200 Qualified *termination Low inductance - less than 0.2nH *Qualified Low inductance - less than 0.2nH wrap-around termination * Resistance values down to 0.003 ohms Leach resistant solder-plated copper wrap-around termination * wrap-around Resistance values down to 0.003 ohms RoHS compliant and SnPb variants RoHS compliant SnPb variants *and AEC-Q200 Qualified *Qualified AEC-Q200 Qualified Low inductance less than 0.2nH ** *Low inductance less than 0.2nH AEC-Q200 * Leach resistant solder-plated copper Leach resistant solder-plated copper wrap-around termination wrap-around termination AEC-Q200 Qualified RoHS compliant and SnPb variants * *AEC-Q200 Qualified Low inductance - less than 0.2nH ** Low inductance - less than 0.2nH AEC-Q200 Qualified ** AEC-Q200 Qualified ElectricalData Data Electrical ElectricalData Data Electrical Power rating at 70C All Pb-free parts comply EU Directive 2011/65/EU (RoHS2) All Pb-free parts comply withwith EU Directive 2011/65/EU (RoHS2) All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3) LR1206 LR1206 LR2010 LR2010 LR2512 LR2512 watw tsatts 0.5 0.5 1.0 1.0 1.5/12..50/*2.0* LR1206 LR2010 LR2512 LR1206 LR2010 LR2512 isctaenrcaengraenge o h m s 0 R 0 1 0 t o 1 R 0 R 0 0 3 t o 1 R LR1206 LR2010 LR2512 ResiRsetasn o h m s 0 R 0 1 0 t o 1 R 0 R 0 0 3 t o 1 R 0 R 000R30t0o31tRo 1R LR1206 LR2010 LR2512 Power rating @70C watts Power rating @70C watts 0.5 0.5 1 1 200 2 2 D i e l e c t r i c w i t h s t a n d i n g v o l t a g e v o l t s 2 0 0 ragtin 0ieClectric withstanding voltage 2.0* 200200 ts.5 200 200 PowPeorwreartin atg17a0t17CD watw tsatts 0v.o5l0 1.01.0 1.5/12..50/* ohms R003 to 1R0 Resistance range ohms R003 to 1R0 Resistance range LR1206 LR2010 LR2512 LR1206 LR2010 LR2512 T C R p p m / C 1 0 0 ( C o n t a c t f a c t o r y f o r v a l u e b e 10 00 tory for va0lR ue000bR3e0lo .0150R0.0o5h0mosh)ms) R raenge1 TC1R oshms 0Rp00p1Rm 0 1to 1R<R01: 5, Ro0n0ta3c1to 0 3 l1ot0o ResResistance isetasinsctaen rcaentolerance g ohm 00/1 toC R<R01: R0(0C 0 R5fa1cR tow Rw R01: % % 5, R01: 1,32,t1,o512, Resistance Peorwrearttolerance ragtin g 7a0t7C0C w a t t s 0 . 5 . 0 1 . 5 / 2 . 0 * Pow i n a t w a t t s 0 . 5 1 . 0 1 . 5 / 2 . 0 * talee R005 >R005 oeleetroalnecraence R005 5%,5%, >R005 1, 2, ricith wsittahnsd tainRg desin tnatcg 20R025-R047: 0%R025-R047: 2R015-R024: 00 205% 0 DielDeicetlreic tw viRsogetalstvniasocg voltvsolts R05: 20100, 0% 2R015-R024: 00 21, 05% 02, R05: <+200, <+300, 100, <+200, <+300, ppm/C raenge o h m s 0 R 0 1 0 t o 1 R 0 R 0 0 3 t o 1 R 0 R 0 0 3 t o TCR ppm/C ReTCR sR isetasinsctaenrcaeng o h m s 0 R 0 1 0 t o 1 R 0 R 0 0 3 t o 1 R 0 R 0 0 3 t o 1 R C 0cto<R01: 800.050 ohms) 1R 90 90 R01-R014: TemTpeemrapteurraeturirsee raisteraterdatpeodwpeorwer C 4fca0tc4 R01-R014: p/pm 0 fvoarl<+900 uelobw e8l0o0w TCRTCR ppm C /C 1 001 (C0o(nCto a<+500, cntta<+500, tfoa<R01: ry froyr<+900 uvealb .05 0 ohms) D i e l e t r i c w i t h s t a d i n g v o l t a g e v o l t s 2 0 0 2 0 0 2 D i e l e c t r i c w i t h s t a n d i n g v o l t a g e v o l t s 2 0 0 2 0 0 200200 2 Dielectric withstand volts 200 trace power rating @ 70C % 305%, >R005 1, 2,30 30 Dielectric withstand volts 200 andand trace areaarea for for maxmax power rating @ 70C mmmm 305%, 100100 insctae ntcoe ecraenPad ce Pad R005 5% ResR iTsetCasR letroaln % R005 >R005 1, 2, 5% p p m / C 1 0 0 ( C o n t a c t f a c t o r y f o r v a l u b e l o w 0 . 0 5 0 osh)ms) T C R p p m / C 1 0 0 ( C o n t a c t f a c t o r y f o r v a l u e b e l o w 0 . 0 5 0 o hm Ambient temperature range C -55 to +150 Ambient temperature range C -55 to +150 2 2 total solder trace ee mra pteurraeturriseeriaste*2 at*2 atWatts ed pwith ertotal of C 300 80 solder padpad andand trace sizesize mmmm TemTRp eerd p ow eorwwith of C 300 40 40 80 >R005 90 90 2 ecraerncWatts R005 1, 5% 2, 5% 2 ReValues sisetasinsctaentcoeletroaln % % R005 5%,5%, >R005 1, 2, E24 preferred Values E24 preferred 2 2 Pad and trace area for max power rating @ 70C mm 30 30 Pad power @ 70C mm 30 30 100100 ee mra ptrace urrarea riasrated tmax atp epower d peorwerating r C atrarated TeTemperature mTand p teurraetrise iserise eat tefor erpower d o w C40 40 40 80 80 Temperature C C 40 80 80 90 9090 90 2 3 2 2 230 2 3 2 and trace area for max power rating @ 70C mm Pad / trace area Pad and trace area for max power rating @ 70C mm 30 30 30 30 100100 mm300 30mm 100100 300300 Pad /Pad trace area *2 Watts with total solder pad and trace size of 300 mm *2 Watts with total solder pad and trace size of mm Power rating at 70C ElectricalData Data Electrical PhysicalData Data Physical 2 2 this range. Note 2: Many values = N x R001 and N x R005 up to N=10 are also 1: Contact factory for value - and tolerance combinations outside *2 with total solder pad and trace size of 300 mm Note 1: Watts Contact factory for value - tolerance combinations outside this range. Note 2: Many values = N x R001 and N x R005 up to N=10 are also *2 Note Watts with total solder pad trace size of 300 mm Dimensions (mm) Dimensions (mm) available. Note 3: Recommended minimum pad & adjacent trace for each termination for rated dissipation on FR4 available. Note 3: Recommended minimum pad & adjacent trace areaarea for each termination for rated dissipation on FR4 PCBPCB SizeSize L L W W H (mHa(xm ) ax) D D LR1206 0.480.25 3.200.305 1.630.20 LR1206 0.480.25 3.200.305 1.630.20 0.8 0.8 Dimensions (mm) Dimensions (mm) LR2010 0.480.25 5.230.38 2.640.25 0.84 LR2010 0.480.25 5.230.38 2.640.25 0.84 Dimensions (mm) (mm) H (max) SDimensions izeSize L L W W D D 6.500.38 3.250.25 H (max) LR2512 0.480.25 0.84 6.500.38 3.250.25 LR2512 0.480.25 0.84 Ha(xm) ax) SizLR1206 eSize L L W W H (m D D 0.480.25 3.200.305 1.630.20 LR1206 0.480.25 3.200.305 1.630.20 0.80.8 PhysicalData Data Physical PhysicalData Data Physical LR1206 LR1206 LR2010 LR2010 3.200.305 3.200.305 5.230.38 5.230.38 5.230.38 5.230.38 LR2512 LR2512 6.500.38 6.500.38 LR2010 LR2010 6.500.38 6.500.38 LR2512 LR2512 J i | oc | bKe = NOLOPLM =W NM WM =~OE= = m~OE= i Jo i oc bKe nC=nC= = NOLOPLM Q= =Q= NM MT= ^T= j =^=j m O O W W WW LRC/LRF Series LRC/LRF Series Recommended Solder Dimensions (mm) Recommended Solder PadPad Dimensions (mm) A A LR1206 LR1206 2001/ 025/ 122512 LR L1R201620/ 60.8 20/ 10.8 3.250.25 3.250.25 0.84 0.84 0.84 0.84 0.84 0.84 H H 2.02.0 L L 0.480.25 0.480.25 0.480.25 0.480.25 R20116220/0662/0/1220001/1002/5/1222551122 LLRRL1 L1R 206 / 2010 / 2512 D D LL LL A A B B C C 4.04.0 1.25 1.25 General Note General Note LR2010 LR2010 0.480.25 0.480.25 0.480.25 0.480.25 0.480.25 0.480.25 0.84 0.84 Solder Plating Solder Plating Nickel Barrier Layer Nickel Barrier Layer Protective Overcoat Protective Overcoat Copper Wraparound Copper Wraparound Resistive Element Resistive Element Termination Termination Copper Termination D Copper Termination DD D Solder Plating Alumina Substrate Solder Plating Solder Plating Alumina Substrate Solder Plating Nickel Barrier Layer Nickel Barrier Layer Nickel Barrier Layer Protective Overcoat Nickel Barrier Layer Protective Overcoat Protective Overcoat Protective Overcoat Welwyn Components Welwyn Components Copper Wraparound Copper Wraparound Resistive Element Copper Wraparound Resistive Element Copper Wraparound Resistive Element Resistive Element Termination Termination Copper Termination Termination Copper Termination Termination Copper Termination Alumina Substrate Copper Termination Alumina Substrate Alumina Substrate Alumina Substrate H H HH LowValue ValueFlat Flat Low ChipResistor Resistor Chip 1.630.20 1.630.20 2.640.25 2.640.25 2.640.25 2.640.25 WW 3.250.25 3.250.25 3.05 1.5 Welwyn Components reserves the right to make changes in product specification without notice or liability. 3.05 6.5in6.5 1.5 Welwyn Components reserves the right to make changes product specification without notice or liability. All information is subject to Welwyn's is considered accurate at time of going to print. All information is subject to Welwyn's ownown datadata and and is considered accurate at time of going to print. LR2512Note LR2512 General General Note B B C 7.75 1.5 3.73.7 7.75 1.57AA, (c) Welwyn Components Limited * Bedlington, Northumberland (c) Welwyn Components Limited * Bedlington, Northumberland NE22NE22 7AA, UK UK Telephone: +44 (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: * Website: www.welwyn-tt.com Welwyn Components reserves the to make changes in product specification without notice or liability. Telephone: +44right (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com Welwyn Components reserves the right to make changes in product specification without notice or info@welwyn-tt.com liability. Note General Note All information is subject to Welwyn's is considered accurate at time of going to print. All General information is subject to Welwyn's ownown datadata and and is considered accurate at time of going to print. Welwyn Components reserves the right to make changes in product specification without notice or liability. Welwyn Components reserves the right to make changes in product specification without notice or liability. General Note (%)(%) General Note All is subject to Welwyn's data and isNorthumberland considered accurate at7AA, time of going to print. (c) information Welwyn Components Limited * Bedlington, Northumberland NE22 UK General Note All is subject to Welwyn's ownown data and is considered accurate at time of7AA, going to print. (c) information Welwyn Components Limited * Bedlington, NE22 UK AEC-Q200 Table 7 Telephone: +44 (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com Typ. Max. AEC-Q200 Table 7 100 TT Electronics Electronics reserves the right to make changes in product specification without notice or liability. liability. Telephone: +44 (0) 1670 822181 * Facsimile: +44 (0)product 1670 829465 *without Email: info@welwyn-tt.com * Website: www.welwyn-tt.com Typ. Max. 100 TT Electronics reserves the right to make changes in product specification notice or liability. TT reserves the right to make changes in specification without notice or Method Method (add R05) (@1R0) (add R05) (c) Welwyn Components Limited * data Bedlington, Northumberland NE22 7AA, UK (@1R0) ref Test (c) Welwyn Components Limited * Bedlington, Northumberland NE22 7AA, UK Test All information is subject to TT Electronics' own and is considered accurate at time of going to print. Allref information is subject to TT Electronics' own data and is considered accurate at time of going to print. All information is subject to TT Electronics' own data and is considered accurate at time of going to print. 80 Telephone: (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: 80www.welwyn-tt.com Telephone: (0) 1670 822181 * Exposure Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com www.welwyn-tt.com 0.2 3 +44+44 High Temp. MIL-STD-202 Method 108 R% 0.5 * Website: C A subsidiary A subsidiary of of TT electronics TT electronics plc plc A subsidiary A subsidiary of of TT electronics TT electronics plc plc 04.10 04.10 High Temp. Exposure MIL-STD-202 Method 108 R% 0.5 0.2 0.25 Temperature CyclingJESD22 JESD22 Method JA-104 R%R% (c)4Electronics TT Electronics Electronics plc 0.25 0.10.1 Temperature Cycling Method JA-104 (c)4TT plc (c) TT plc Moisture Resistance MIL-STD-202 Method 0.50.50.20.2 6 6 Moisture Resistance MIL-STD-202 Method 106106 R%R% 3 7 7 Biased Humidity MIL-STD-202 Method 0.50.50.20.2 Biased Humidity MIL-STD-202 Method 103103 R%R% wer Rating ower Rating A subsidiary A subsidiary of of BI Technologies IRC Welwyn TT electronics plc 04.10 TT electronics plc04.10 60 60 40 40 www.ttelectronicsresistors.com 04.10 23 23 www.ttelectronicsresistors.com 04.10 www.ttelectronics.com/resistors 12.15 12.15 06.18 23 23 23 2 Recommended Solder Pad Dimensions (mm) A Low Low Value Value Flat Flat LR2010 Chip Resistor Chip Resistor C 2.0 4.0 1.25 3.05 6.5 1.5 3.7 7.75 1.5 LR1206 B Typ. (%) 100 R% 0.5 0.2 80 R% 0.25 0.1 Max. (add R05) JESD22 Method JA-104 (@1R0) 4 Temperature Cycling 6 Moisture Resistance MIL-STD-202 Method 106 R% 0.5 0.2 7 Biased Humidity MIL-STD-202 Method 103 R% 0.5 0.2 8 Operational Life (Cyclic Load) MIL-STD-202 Method 108 R% 14 R% 0.5 Vibration MIL-STD-202 Method 204 15 Resistance to Soldering Heat MIL-STD-202 Method 210 1 Power Rating AEC-Q200 Table 7 Method Test High Temp. Exposure MIL-STD-202 Method 108 16 Make Possible C LRLR2512 Series LR Series ref 3 A B 0.5 60 40 20 0.05 0 R% 0.25 0.05 R% 0.25 Thermal Shock MIL-STD-202 Method 107 J-STD-002 70 25 0.1 18 Solderability 21 Board Flex AEC-Q200-005 R% 0.5 0.2 22 Terminal Strength AEC-Q200-006 R% 0.25 0.1 Short Term Overload 6.25 x Pr for 2s R% 0.5 Low Temperature Storage -65C for 100 hours R% 0.5 Leach Resistance Solder dip at 250C 90s minimum 150 (C) Ambient temperature >95% coverage LRC 25 12 2 1 watt LRC 20 10 1 0.w 5 at wat t t LRC 12 06 0.5 25ww atat tt Note: 1. Although 2010 and 2512 sizes have passed temperature cycling and thermal shock, it is in general not recommended that ceramic chips this large be used on FR4 in a severe temperature cycle environment due to the possibility of solder joint fatigue. 2. Full AEC-Q200 qualification applies only to European Part Numbers at ohmic values R01. Ordering Procedure Ordering Procedure Example: LRF2512 at 10 milliohms (hence flip-chip mounted) and 2% tolerance on a reel of 1800 pieces This product has two valid part numbers: LRF2512-R01GW European (Welwyn) Part Number: LRF1206-R02FW (1206, 20 milliohms 1%, Pb-free) Type Mounting L R F 1 2 0 6 R 0 Conventional (element up) Values > R025 1 2 3 Flip-chip (element down) Values < R025 F Size 1 Value (use IEC62 code) Type Tolerance (use IEC62 code) 2 Packing W T1 Tape 1206 or 2010 2512 All sizes W 4 5 2 3 4 5 Size Value Tolerance Termination & Packing F = 1% G = 2% J = 5% W Pb-free, standard packing T1 Pb-free, 1000/reel (non-standard) PB SnPb finish, standard packing Standard packing is tape & reel 1206 & 2010 3000/reel 2512 1800/reel LR = Conventional orientation 1206 E24 = 3/4 1% (values >R025) 2010 characters 2% LRF = Flip-chip orientation 2512 R = ohms 5% (values R025) F G J F 3000/reel 1800/reel 1000/reel Standard USA (IRC) Part Number: LRC-LRF1206LF-01-R020-F (1206, 20 milliohms 1%, Pb-free) L R C - L R F 1 2 0 6 L F - 0 (c) Welwyn Bedlington, Northumberland NE22 1 Components Limited 2 3 4 7AA, UK 1 - R 5 0 2 0 6 Telephone: +44 (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com 1 2 3 4 5 6 7 Family Model Size Termination TCR Value Tolerance LRC LR = Conventional orientation 1206 Omit for SnPb 01 = standard 4 characters (values >R025) R = ohms 2010 LF = Pb-free (100ppm/C values R05) LRF = Flip-chip orientation 2512 (values R025) General Note Electrical TT Electronics reserves theData right to make changes in product specification without notice or liability. TT Electronics reserves the right to make changes in product specification without notice or liability. General Note All information is subject to TT Electronics' own data and is considered accurate at time of going to print. All information is subject to TT Electronics' own data and is considered accurate at time of going to print. (c) TT Electronics plc (c) TT Electronics Power rating plc @70C Resistance range1 watts ohms LR1206 0.5 F = 1% G = 2% J = 5% - F 7 04.10 Packing Standard packing is tape & reel All sizes 1000/reel 1206 & 2010 3000/reel 1800/reel 2512 Standard Nonstandard BI Technologies IRC Welwyn LR2010 1 R003 to 1R0 www.ttelectronicsresistors.com www.ttelectronics.com/resistors LR2512 2 12.15 06.18