LRLRCC 1206 0.5 w 1206 0.25 wattatt LRC 2010 1 wLRC 2010 0.5 wattatt LRC 2512 1 wLRC 2512 2 wattatt i o J i o c b K = = NOLOPLMQ= = NMWMT= j = = m~= N i o J i o c b K = = NOLOPLMQ= = NMWMT= j = = m~= N i o J i o c b K = = NOLOPLMQ= = NMWMT= j = = m~= N Low Value Flat Resistors Low Value Flat Make Possible Welwyn Components Chip Resistor Welwyn Components Chip Resistor Low Value Flat Chip Resistor Low Value Flat LRC/LRF Series LR Series Welwyn Components Chip Resistor LRC/LRF Series Standard 2512, 2010 and 1206 sizes Standard 2512, 2010 and 1206 sizes Resistance values down to 0.003 ohms Standard 2512, 2010 and 1206 sizes Resistance values down to 0.003 ohms Leach resistant solder-plated copper LRC/LRFResistance Serie valuess down to 0.003 ohms Leach resistant solder-plated copper wrap-around termination wrap-around termination Leach resistant solder-plated copper Standard 2512, 2010 and 1206 sizes AEC-Q200 Qualified Low inductance - less than 0.2nH wrap-around termination Resistance values down to 0.003 ohms RoHS compliant and SnPb variants AEC-Q200 Qualified Low inductance - less than 0.2nH Leach resistant solder-plated copper wrap-around termination AEC-Q200 Qualified Low inductance - less than 0.2nH All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2) AEC-Q200 Qualified Electrical Data LR1206 LR2010 LR2512 Electrical Data Power rating at 70C watts 0.5 1.0 1.5/2.0* LR1206 LR2010 LR2512 Resistance range ohms 0R010 to 1R 0R003 to 1R 0R003 to 1R LR1206 LR2010 LR2512 Electrical Data Power rating 70C watts 0.5 1 2 Dielectric withstanding voltage volts 200 200 200 Power rating at 70C watts 0.5 1.0 1.5/2.0* 1 Resistance range ohms R003 to 1R0 LR1206 LR2010 LR2512 TCR ppm/C 100 (Contact factory for value below 0.050 ohms) Resistance range ohms 0R010 to 1R 0R003 to 1R 0R003 to 1R 1 Resistance tolerance % <R01: 5, R01: 1, 2, 5 Power rating at 70C watts 0.5 1.0 1.5/2.0* Resistance tolerance % R005 5%, >R005 1, 2, 5% Dielectric withstanding voltage volts 200 200 200 R05: 100, R025R047: <+200, R015-R024: <+300, TCR ppm/C Resistance range ohms 0R010 to 1R 0R003 to 1R 0R003 to 1R Temperature rise at rated power R01-R014: <+500, <R01: <+900C 40 80 90 TCR ppm/C 100 (Contact factory for value below 0.050 ohms) Dielectric withstanding voltage volts 200 200 200 2 Dielectric withstand Pad and trace area for max powervolts rating 70C mm 20030 30 100 Resistance tolerance % R005 5%, >R005 1, 2, 5% TCR ppm/C 100 (Contact factory for value below 0.050 ohms) Ambient temperature range C -55 to +150 2 Temperature rise at*2 ra tWedatts pow wither total solder pad and trace size ofC 300 mm 40 80 90 2 Resistance tolerance % R005 5%, >R005 1, 2, 5% Values E24 preferred 2 Pad and trace area for max power rating 70C mm 30 30 100 Temperature rise at rated power C 40 80 90 Temperature rise at rated power C 40 80 90 2 3 2 2 Pad and trace area for max power rating 70C mm 30 30 100 Pad / trace area mm 30 100 300 *2 Watts with totalPhysical solder pad and Dat tracea size of 300 mm 2 Note 1: 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 Watts with total solder pad and trace size of 300 mm Dimensions (mm) available. Note 3: Recommended minimum pad & adjacent trace area for each termination for rated dissipation on FR4 PCB Size L W H (max) D Physical Data Physical Data LR1206 3.200.305 1.630.20 0.8 0.480.25 Dimensions (mm) LR2010 5.230.38 2.640.25 0.84 0.480.25 Dimensions (mm) Size L W H (max) D LR2512 6.500.38 3.250.25 0.84 0.480.25 Size L W H (max) D LR1206 3.200.305 1.630.20 0.8 0.480.25 LR1206 LR 1206 / 2010 / 2512 3.200.305 1.630.20 0.8 0.480.25 LR2010 5.230.38 2.640.25 0.84 0.480.25 LR2010 5.230.38 2.640.25 0.84 0.480.25 W L LR2512 6.500.38 3.250.25 0.84 0.480.25 LR2512 6.500.38 3.250.25 0.84 0.480.25 LR 1206 / 2010 / 2512 LR 1206 / 2010 / 2512 H i o J i o c b K = = NOLOPLMQ= = NMWMT= j = = m~= O W L W L D Solder Plating H H Nickel Barrier Layer Protective Overcoat Copper Wraparound Resistive Element Low Value Flat Termination D Copper Termination D Solder Plating Solder PlatingAlumina Substrate Chip Resistor Nickel Barrier Layer Protective Overcoat Nickel Barrier Layer Protective Overcoat Welwyn Components Copper Wraparound LRC/LRF Series Resistive Element Copper Wraparound Resistive Element Termination Copper Termination Termination Copper Termination Alumina Substrate Alumina Substrate Recommended Solder Pad Dimensions (mm) A A B C LR1206 2.0 4.0 1.25 B General Note LR2010 3.05 6.5 1.5 Welwyn Components reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyns own data and is considered accurate at time of going to print. A subsidiary of C TT electronics plc LR2512 3.7 7.75 1.5 Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK General Note Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com 04.10 Welwyn Components reserves the right to make changes in product specification without notice or liability. General Note All information is subject to Welwyns own data and is considered accurate at time of going to print. A subsidiary of Welwyn Components reserves the right to make changes in product specification without notice or liability. TT electronics plc 23 (%) General Note All informationWelwyn isComponents subject to Welwyn Limiteds own data Bedlington, and is conside Northumberlandred accurate NE22at time 7AA, of going UK to print. A subsidiary of AEC-Q200 Table 7 04.10 TT Electronics reservTelephone: +44 (0)es the right to mak1670 822181 Facsimile:e changes in product specific +44 (0) 1670 829465ation without notice or liability. Email: info welwyn-tt.comMax. Typ. Website: 100www.welwyn-tt.com TT electronics plc Method (add R05) ( 1R0) r efWelwyn ComponentsTest Limited Bedlington, Northumberland NE22 7AA, UK All information is subject to TT Electronics own data and is considered accurate at time of going to print. 80 www.ttelectronicsresistors.com 23 Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com 04.10 3 High Temp. Exposure MIL-STD-202 Method 108 R% 0.5 0.2 4 Temperature Cycling JESD22 Method JA-104 R% 0.25 0.1 TT Electronics plc 60 23 10.14 6 Moisture Resistance MIL-STD-202 Method 106 R% 0.5 0.2 40 7 Biased Humidity MIL-STD-202 Method 103 R% 0.5 0.2 8 Operational Life (Cyclic Load) MIL-STD-202 Method 108 R% 1 0.5 20 14 Vibration MIL-STD-202 Method 204 R% 0.5 0.05 0 70 25 150 (C) 15 Resistance to Soldering Heat MIL-STD-202 Method 210 R% 0.25 0.05 Ambient temperature 16 Thermal Shock MIL-STD-202 Method 107 R% 0.25 0.1 18 Solderability J-STD-002 >95% coverage 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 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 Example: LRF2512 at 10 milliohms (hence flip-chip mounted) and 2% tolerance on a reel of 1800 pieces L R F 2 5 1 2 R 0 1 G W Type Mounting Conventional (element up) Values > R025 F Flip-chip (element down) Values < R025 Size Value (use IEC62 code) Tolerance (use IEC62 code) F 1% G 2% J 5% Packing 1206 or 2010 3000/reel W Standard Tape 2512 1800/reel T1 All sizes 1000/reel 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 04.10 Power RatingLRLRCC 1206 0.5 w 1206 0.25 wattatt LRC 2010 1 wLRC 2010 0.5 wattatt LRC 2512 1 wLRC 2512 2 wattatt i o J i o c b K = = NOLOPLMQ= = NMWMT= j = = m~= O Low Value Flat Chip Resistor Welwyn Components LRC/LRF Series Recommended Solder Pad Dimensions (mm) A A B C LR1206 2.0 4.0 1.25 Low Value Flat B LR2010 3.05 6.5 1.5 Chip Resistor Make Possible C LR Series LR2512 3.7 7.75 1.5 (%) AEC-Q200 Table 7 Max. Typ. 100 Method (add R05) ( 1R0) ref Test 80 3 High Temp. Exposure MIL-STD-202 Method 108 R% 0.5 0.2 4 Temperature Cycling JESD22 Method JA-104 R% 0.25 0.1 60 6 Moisture Resistance MIL-STD-202 Method 106 R% 0.5 0.2 40 7 Biased Humidity MIL-STD-202 Method 103 R% 0.5 0.2 8 Operational Life (Cyclic Load) MIL-STD-202 Method 108 R% 1 0.5 20 14 Vibration MIL-STD-202 Method 204 R% 0.5 0.05 0 70 150 (C) 25 15 Resistance to Soldering Heat MIL-STD-202 Method 210 R% 0.25 0.05 Ambient temperature 16 Thermal Shock MIL-STD-202 Method 107 R% 0.25 0.1 18 Solderability J-STD-002 >95% coverage 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 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: L R F 2 5 1 2 R 0 1 G W European (Welwyn) Part Number: LRF1206-R02FW (1206, 20 milliohms 1%, Pb-free) Type Mounting L R F 1 2 0 6 - R 0 2 F W Conventional (element up) Values > R025 1 2 3 4 5 F Flip-chip (element down) Values < R025 Size 1 2 3 4 5 Value (use IEC62 code) Type Size Value Tolerance Termination & Packing Tolerance (use IEC62 code) 1206 F = 1% W Pb-free, standard packing LR = Conventional orientation E24 = 3/4 F 1% (values >R025) 2010 characters G = 2% T1 Pb-free, 1000/reel (non-standard) G 2% R = ohms LRF = Flip-chip orientation 2512 J = 5% PB SnPb finish, standard packing J 5% (values R025) Standard packing is tape & reel Packing 1206 & 2010 3000/reel 1206 or 2010 3000/reel 2512 1800/reel W Standard Tape 2512 1800/reel T1 All sizes 1000/reel 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 1 - R 0 2 0 - F Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK 1 2 3 4 5 6 7 Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com 04.10 1 2 3 4 5 6 7 Packing Family Model Size Termination TCR Value Tolerance LRC 1206 Omit for SnPb F = 1% LR = Conventional orientation 4 characters 01 = standard Standard packing is tape & reel (values >R025) R = ohms 2010 LF = Pb-free (100ppm/C G = 2% values R05) 2512 J = 5% 1206 & 2010 3000/reel LRF = Flip-chip orientation Standard (values R025) 1800/reel 2512 Non- 1000/reel standard General Note Electrical Data TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics own data and is considered accurate at time of going to print. www.ttelectronicsresistors.com LR1206 LR2010 LR2512 TT Electronics plc Power rati ng 70C watt s 0.5 1 2 10.14 1 Resistance range ohms R003 to 1R0 1 Resistance tolerance % <R01: 5, R01: 1, 2, 5 R05: 100, R025R047: <+200, R015-R024: <+300, TCR ppm/C R01-R014: <+500, <R01: <+900 Dielectric withstand volts 200 Ambient temperature range C -55 to +150 2 Values E24 preferred Temperature rise at rated power C 40 80 90 3 2 Pad / trace area mm 30 100 300 Note 1: Contact factory for value tolerance combinati ons outside this range. Note 2: Many values = N x R001 and N x R005 up to N=10 are also available. Note 3: Recommended minimum pad & adjacent trace area for each termination for rated dissipati on on FR4 PCB Power Rating