DOCUMENT : SR3F0000NH REVISION : A0 PAGE : 1 OF 8 SPECIFICATION FOR APPROVAL 1/3W, 0805 Low Resistance Chip Resistor (Lead / Halogen free) 1. Scope This specification applies to 1.2mm x 2.0mm size 1/3W, fixed metal film chip resistors rectangular type for use in electronic equipment. 2. Type Designation RL1220 — F — □□□□ — □ (1) (2) (3) (4) Where (1) Series No. (2) Power rating F = 1/3W (3) Resistance value: For example— R010 = 0.010 Ω (4) Resistance tolerance: F= ± 1% G= ± 2% J= ± 5% 3. Construction and Physical Dimensions L a a W b Figure 1. Structure (No mark) t b Code Letter Dimensions (mm) L 2.00 ± 0.20 W 1.25 ± 0.20 t 0.40 ± 0.20 a 0.40 ± 0.20 b 0.40 ± 0.20 NOTE: ① Resistive element ( under protection film ) ② Electrode ③ Protection film ④ Substrate DOCUMENT : SR3F0000NH REVISION : A0 PAGE : 2 OF 8 SPECIFICATION FOR APPROVAL 4. Ratings 4-1 Specification Power Rating* 1/3 W Resistance Range 0.010Ω ~ 0.050Ω Resistance Tolerance ±1% , ±2% , ±5% 0~250ppm/℃ Temperature Coefficient of Resistance Note*: Power Rating is based on continuous full load operation at rated ambient temperature of 70℃. For resistors operated at ambient temperature in excess of 70℃, the maximum load shall be derated in accordance with the following curve. % 100 Percentage of the rated dissipation 50 0 -55 70 125 Ambient temperature Figure 2 Derating Curve 4-2 Rated Voltage The rated voltage shall be determined by the following expression. V = P× R Where V：Rated voltage (V) R：Nominal resistance value (Ω) P：Rated dissipation (W) 4-3 Operating and Storage Temperature Range -55 to +125℃ ℃ DOCUMENT : SR3F0000NH REVISION : A0 PAGE : 3 OF 8 SPECIFICATION FOR APPROVAL 5. Characteristics Test Item Condition of Test Requirements Short Time Overload 2.5 * Rated power for 5 seconds Refer to JIS C 5201-1 4.13 ΔR : ± (0.5%+0.0005Ω) Without significant damage by flashover ( spark, arching ), burning or breakdown etc. Insulation Resistance The resistor shall be cramped in the metal block and tested , as shown below. Test voltage : 100 ± 15VDC for 1 minute Refer to JIS C 5201-1 4.6 Mounting condition G. Between Electrode and Protection Film 100MΩ or over Between Electrode and Substrate 1,000MΩ or over Voltage Proof The voltage : 100VAC (rms.) for 1 minute ΔR : ± (0.5%+0.0005Ω) Refer to JIS C 5201-1 4.7 Without damage by flashover, fire or breakdown, as shown below. Thermal Shock -55 ~125℃ 5 cycles, 15 min at each extreme condition Refer to JIS C 5201-1 4.19 ΔR : ± (1.0%+0.0005Ω) Without distinct damage in appearance Low Temperature Storage Kept at -55℃, 1,000 hours Refer to JIS C 5201-1 4.23.4 ΔR : ± (1.0%+0.0005Ω) Without distinct damage in appearance High Temperature Exposure Kept at 125℃ for 1,000 hours Refer to JIS C 5201-1 4.23.2 ΔR : ± (1.0%+0.0005Ω) Without distinct damage in appearance Solderability Temperature of Solder : 245 ± 5℃ Immersion Duration : 2 ± 0.5 second Refer to JIS C 5201-1 4.17 Uniform coating of solder cover minimum of 95% surface being immersed Resistance to Soldering Heat Dipped into solder at 270 ± 5℃ for 10 ± 1 seconds Refer to JIS C 5201-1 4.18 ΔR : ± (0.5%+0.0005Ω) Without distinct deformation in appearance DOCUMENT : SR3F0000NH REVISION : A0 PAGE : 4 OF 8 SPECIFICATION FOR APPROVAL Test Item Condition of Test Requirements Load Life Rated voltage for 1.5 hours followed by a pause 0.5 hour at 70 ± 2℃. Cycle repeated 1000 hours Refer to JIS C 5201-1 4.25 ΔR : ± (1.0%+0.0005Ω) Without distinct damage in appearance Damp Heat with Load 60 ± 2℃ with relative humidity 90% to 95%. D.C. rated voltage for 1.5 hours ON and 30 minutes OFF. Cycle repeated 1,000 hours Refer to JIS C 5201-1 4.24 ΔR : ± (1.0%+0.0005Ω) Without distinct damage in appearance Mechanical Shock 100 G’s for 6milliseconds. 5 pulses Refer to JIS C 5201-1 4.21 ΔR : ± (0.5%+0.0005Ω) Without mechanical damage such as break Bending Test Glass-Epoxy board thickness : 1.6mm Bending width : 2mm Between the fulcrums : 90mm Refer to JIS C 5201-1 4.33 ΔR : ±(0.5%+0.0005Ω) Without mechanical damage such as break DOCUMENT : SR3F0000NH REVISION : A0 PAGE : 5 OF 8 SPECIFICATION FOR APPROVAL Mounting Method (1) Mounting method according to solder bath method Epoxy based adhesive agent shall be applied in the middle of two lands of the test board. The specimen shall be mounted in such a way that the electrode of specimen will be evenly placed in the land area and then adhesive agent shall be cured. After applying the Resin Flux with 25 weight % Methyl Alcohol, the board shall be soldered by dipping into a molten solder bath with 260 ± 5℃ for 3 to 5 seconds (2) Mounting method according to refolw soldering method Solder paste with approximate 200μm thickness shall be applied to the land of test board. The specimen shall be mounted in such way that the electrodes of specimen will be evenly placed in the land area and then shall be soldered under the circumstance that the surface temperature of the board shall be raised 240 ± 5℃(peak temperature) for 5 to 10 seconds in an upper-heater oven. Test Board Material : Glass Fabric Epoxy Resin (Refer to JIS C 6484) Board thickness : 1.6mm Copper foil thickness : 0.035mm (1) Test board A (For substrate bending test) Solder resist b Land 40 c 4.5 f a 100 Unit : mm a b c f 1.2 4.0 1.65 (3.0) DOCUMENT : SR3F0000NH REVISION : A0 PAGE : 6 OF 8 SPECIFICATION FOR APPROVAL (2) Test board B ( For another test ) 8.5 6. 27.0 18.5 5.3 6.94 1.00 4.00 2.4 0.40 4.46 5.08 1.32 (5.08x9=45.72) 1.22 58.5 Unit : mm DOCUMENT : SR3F0000NH REVISION : A0 PAGE : 7 OF 8 SPECIFICATION FOR APPROVAL 6. Packaging 6-1 Dimensions 6-1-1 Tape packaging dimensions 1.5 +- 0.6 ± 0.10 0.1 0.0 Sprocket hole 4.0 ± 0.1 1.75 ±0.1 A CHIP 3.5 ± 0.05 8.0 ± 0.3 B 0.65 ± 0.10 4.0 ± 0.1 Carrier cavity 2.0 ± 0.05 Pull Direction ※ Pre-emptied holes : 150 holes (or 30cm) or more. Code letter A B Unit : mm 1.45 ± 0.10 2.25 ± 0.10 Dimension 6-1-2 Reel Dimensions (Plastic reel : Correspond with EIAJ RRV08B) 13 ± 1.4 50 105 2 13 ± 0.2 +1 60-0 28 ± 0.8 R1 +0 180-3 Label 105 x 50 9 ± 0.3 Unit : mm DOCUMENT : SR3F0000NH SPECIFICATION FOR APPROVAL 6-2 Peel force of top cover tape The peel speed shall be about 300 mm / min. The peel force of top cover tape shall be between 0.1 to 0.7 N. Top Cover Tape 165 ~ 180° 0.1~0.7 N 6-3 Numbers of taping 5,000 pieces / reel 6-4 Making The following items shall be marked on the reel. (1) Type designation (2) Quantity (3) Manufacturing date code (4) Manufacturer’s name (5) The country of origin REVISION : A0 PAGE : 8 OF 8