DATA SHEET SURGE CHIP RESISTORS SR series 20%, 10%, 5% sizes 0805/1206/1218/2010/2512 Product specification – Mar 18, 2011 V.1 RoHS compliant & Halogen free Product specification Chip Resistor Surface Mount SR SCOPE ORDERING INFORMATION - GLOBAL PART NUMBER This specification describes SR0805 to SR2512 chip resistors with lead-free terminations made by thick film process. Part number is identified by the series name, size, tolerance, packaging type, temperature coefficient, taping reel and resistance value. APPLICATIONS Telecommunications Power supplies FEATURES Superior to SR series in pulse withstanding voltage and surge withanding voltage. MSL class: MSL 1 Halogen free epoxy RoHS compliant - - Products with lead-free terminations meet RoHS requirements Pb-glass contained in electrodes, resistor element and glass are exempted by RoHS Reduce environmentally hazardous waste High component and equipment reliability 2 8 0805/1206/1218/2010/2512 SERIES GLOBAL PART NUMBER SR XXXX X X X XX XXXX L (1) (2) (3) (4) (5) (6) (7) (1) SIZE 0805 / 1206 / 1218 / 2010 / 2512 (2) TOLERANCE J = ±5% K = ±10% M = ±20% (3) PACKAGING TYPE R = Paper taping reel K = Embossed taping reel (4) TEMPERATURE COEFFICIENT OF RESISTANCE – = Based on spec. (5) TAPING REEL 07 = 7 inch dia. Reel 10 = 10 inch dia. Reel 13 = 13 inch dia. Reel (6) RESISTANCE VALUE 1 Ω ≤ R ≤ 100 KΩ There are 2~4 digits indicated the resistance value. Letter R/K/M is decimal point, no need to mention the last zero after R/K/M, e.g.1K2, not 1K20. Detailed coding rules of resistance are shown in the table of “Resistance rule of global part number”. (7) DEFAULT CODE Letter L is the system default code for ordering only. (Note) Resistance rule of global part number Resistance coding Example rule XRXX (1 to 9.76 Ω) 1R = 1 Ω 1R5 = 1.5 Ω 9R76 = 9.76 Ω XXRX (10 to 97.6 Ω) 10R = 10 Ω 97R6 = 97.6 Ω XXXR (100 to 976 Ω) 100R = 100 Ω XKXX (1 to 9.76 KΩ) 1K = 1,000 Ω 9K76 = 9760 Ω XXKX (10 to 97.6 KΩ) 10K = 10,000 Ω 97K6= 976,000 Ω XXXK (100 KΩ) 100K = 100,000 Ω ORDERING EXAMPLE The ordering code for an SR0805 chip resistor, value 10 KX with ±5% tolerance, supplied in 7-inch tape reel is: SR0805JR-0710KL. www.yageo.com Mar 18, 2011 V.1 Product specification Chip Resistor Surface Mount SR 3 8 0805/1206/1218/2010/2512 SERIES MARKING SR1218 E-24 series: 3 digits First two digits for significant figure and 3rd digit for number of zeros YNSC099 Fig. 1 Value=10 KΩ SR0805 / SR1206 / SR2010 / SR2512 E-24 series: 3 digits First two digits for significant figure and 3rd digit for number of zeros 03 YNSC001 Fig. 2 Value=10 KΩ NOTE For further marking information, please refer to data sheet “Chip resistors marking”. CONSTRUCTION The resistor is constructed on top of a high-grade ceramic body. Internal metal electrodes are added at each end and connected by a resistive glaze. The resistive glaze is covered by a lead-free glass. The composition of the glaze is adjusted to give the approximately required resistance value. The whole element is covered by a protective overcoat. The top of overcoat is marked with the resistance value. Finally, the two external terminations (Ni/matte tin) are added, as shown in Fig.3. OUTLINES marking layer overcoat protective glass resistive layer inner electrode termination (Ni/matte tin) inner electrode ceramic substrate YNSC095 Fig. 3 Chip resistor outlines DIMENSIONS Table 1 TYPE L (mm) W (mm) H (mm) I1 (mm) I2 (mm) SR0805 2.00 ±0.10 1.25 ±0.10 0.50 ±0.10 0.35 ±0.20 0.35 ±0.20 SR1206 3.10 ±0.10 1.60 ±0.10 0.55 ±0.10 0.45 ±0.20 0.40 ±0.20 SR1218 3.10 ±0.10 4.60 ±0.10 0.55 ±0.10 0.45 ±0.20 0.40 ±0.20 SR2010 5.00 ±0.10 2.50 ±0.15 0.55 ±0.10 0.55 ±0.15 0.50 ±0.20 SR2512 6.35 ±0.10 3.10 ±0.15 0.55 ±0.10 0.60 ±0.20 0.50 ±0.20 For dimension, please refer to Table 1 SR0805/1206/2010/2512 I1 I1 SR1218 Side view for all type W H W I2 Fig. 4 Chip resistor dimensions L L YNSC096 www.yageo.com Mar 18, 2011 V.1 Product specification Chip Resistor Surface Mount SR SERIES 4 8 0805/1206/1218/2010/2512 ELECTRICAL CHARACTERISTICS Table 2 CHARACTERISTICS TYPE POWER SR0805 1/8 W SR1206 1/4 W RESISTANCE RANGE E24 5%, 10%, 20% 1 Ω ≤ R ≤ 100 KΩ Operating Temperature Range Max. Working Voltage Max. Overload Voltage Dielectric Withstanding Voltage 150 V 300 V 300 V 150 V 400 V 500 V 200 V 400 V 500 V SR1218 1W SR2010 3/4 W 200 V 400 V 500 V SR2512 1W 200 V 400 V 500 V –55 °C to +155 °C Temperature Coefficient of Resistance ±200 ppm/°C FOOTPRINT AND SOLDERING PROFILES Recommended footprint and soldering profiles, please refer to data sheet “Chip resistors mounting”. PACKING STYLE AND PACKAGING QUANTITY Table 3 Packing style and packaging quantity PACKING STYLE Paper taping reel (R) Embossed taping reel (K) REEL DIMENSION SR0805 SR1206 SR1218 SR2010 SR2512 7" (178 mm) 5,000 5,000 --- --- --- 10" (254 mm) 10,000 10,000 --- --- --- 13" (330 mm) 20,000 20,000 --- --- --- 7" (178 mm) --- --- 4,000 4,000 4,000 NOTE 1. For paper/embossed tape and reel specification/dimensions, please refer to data sheet “Chip resistors packing”. www.yageo.com Mar 18, 2011 V.1 Product specification Chip Resistor Surface Mount SR 5 8 0805/1206/1218/2010/2512 SERIES FUNCTIONAL DESCRIPTION OPERATING TEMPERATURE RANGE handbook, halfpage Range: –55 °C to +155 °C P (%Prated ) POWER RATING MLB206_2 100 Each type rated power at 70 °C: SR0805 = 1/8 W (0.125W) SR1206 = 1/4 W (0.25W) SR1218 = 1 W SR2010 = 3/4W (0.75W) SR2512 = 1 W 50 0 55 0 50 70 RATED VOLTAGE The DC or AC (rms) continuous working voltage corresponding to the rated power is determined by the following formula: 100 155 o Tamb ( C) Fig. 4 Maximum dissipation (Pmax) in percentage of rated power as a function of the operating ambient temperature (Tamb ) V = √(P X R) Where V = Continuous rated DC or AC (rms) working voltage (V) P = Rated power (W) R = Resistance value (X) PULSE LOAD BEHAVIOR YNSC093 10 4 Pmax (W) Pulse limiting electric power 10 3 10 2 2512 10 2010 1218 1206 1 10 2 Fig. 5 Pulse-Load behavior 0805 10 1 1 10 1 10 2 10 3 Pulse duration t i (ms) www.yageo.com Mar 18, 2011 V.1 Product specification Chip Resistor Surface Mount SR SERIES 6 8 0805/1206/1218/2010/2512 TESTS AND REQUIREMENTS Table 4 Test condition, procedure and requirements TEST TEST METHOD PROCEDURE REQUIREMENTS Temperature Coefficient of Resistance (T.C.R.) MIL-STD-202 Method 304 At +25/–55 °C and +25/+125 °C Refer to table 2 Formula: R2–R1 T.C.R= ------------------------- ×106 (ppm/°C) R1(t2–t1) Where t1=+25 °C or specified room temperature t2=–55 °C or +125 °C test temperature R1=resistance at reference temperature in ohms R2=resistance at test temperature in ohms Short Time Overload IEC60115-1 4.13 2.5 times of rated voltage or maximum overload voltage whichever is less for 5 sec at room temperature ±(2.0%+0.05 Ω) High Temperature Exposure IEC 60068-2-2 1,000 hours at TA = 155 °C ±5 °C, unpowered ±(3.0%+0.05 Ω) Humidity IEC 60115-1 4.24.8 Steady state for 1,000 hours at 40 °C / 95% R.H. ±(3.0%+0.05 Ω) RCWV applied for 1.5 hours on and 0.5 hour off Life IEC 60115-1 4.25.1 1,000 hours at 70±2 °C, derated voltage applied for 1.5 hours on, 0.5 hour off, still-air required ±(3.0%+0.05 Ω) Resistance to Soldering Heat IEC 60068-2-58 Condition B, no pre-heat of samples ±(1.0%+0.05 Ω) Lead-free solder, 260±5 °C, 10±1 seconds immersion time No visible damage Procedure 2 for SMD: devices fluxed and cleaned with isopropanol Temperature Cycling JESD22-A104C -55/+125 °C for 1 cycle per hour, with 5 cycles. ±(1.0%+0.05 Ω) Devices mounted www.yageo.com Mar 18, 2011 V.1 Product specification Chip Resistor Surface Mount SR SERIES 7 8 0805/1206/1218/2010/2512 TEST TEST METHOD PROCEDURE REQUIREMENTS Solderability - Wetting J-STD-002 Electrical Test not required Magnification 50X Well tinned (≥95% covered) SMD conditions: No visible damage Immerse the specimen into the solder pot at 235±3°C for 2±0.5 seconds. Board Flex IEC 60068-2-21 IEC 60115-1 4.33 Chips mounted on a 90mm glass epoxy resin PCB (FR4) ±(1.0%+0.05 Ω) Bending for 0805: 3 mm 1206 and above: 2 mm Holding time: minimum 60 seconds www.yageo.com Mar 18, 2011 V.1 Product specification Chip Resistor Surface Mount SR SERIES 8 8 0805/1206/1218/2010/2512 REVISION HISTORY REVISION DATE CHANGE NOTIFICATION DESCRIPTION Version 1 Mar 18, 2011 - - Change to dual brand datasheet that describes SR0805 to SR2512 with RoHS compliant - Define global part number Version 0 Oct 19, 2004 - - “ Yageo reserves all the rights for revising the content of this datasheet without further notification, as long as the products are unchanged. Any product change will be announced by PCN.” "The reimbursement is limited to the value of the products." www.yageo.com Mar 18, 2011 V.1