DOCUMENT : SM6C0000NH SPECIFICATION FOR APPROVAL REVISION : A1 PAGE : 1 OF 7 1W, 2512, SC Type Low Resistance Chip Resistor (Lead / Halogen Free) 1. Scope This specification applies to 3.2mm x 6.4mm size 1W, fixed metal foil with ceramic carrier current sensing resistors used in electronic equipment. 2. Type Designation RL32646C – □□□□ – (1) (2) Where □ (3) (1) Series No. (2) Resistance value : For example : R003 = 3mΩ R050 = 50mΩ (3) Tolerance : F= ± 1% G= ± 2% J= ± 5% 3. Type Designation L R010 W t a a Code Letter Dimensions (mm) L 6.35 ± 0.25 W 3.20 ± 0.20 a 0.90 ± 0.25 t 3mΩ ~ 5mΩ,7mΩ 1.05 ± 0.15 6mΩ,R＞8mΩ 0.80 ± 0.15 3264 Figure 1. Construction and Dimensions DOCUMENT : SM6C0000NH SPECIFICATION FOR APPROVAL REVISION : A1 PAGE : 2 OF 7 4. Specification Characteristics Feature Power Rating* 1W Resistance Value 3 ~ 100mΩ Temperature Coefficient of Resistance ±100ppm/℃ Operation Temperature Range -55℃ ~ +170℃ Resistance Tolerance ±1% , ±2% , ±5% Insulation Resistance Over 100MΩ ( P*R)1/2 Maximum Working Voltage (V) 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 RATED LOAD(%) accordance with the following curve. 100 0 -55 70 170 AMBIENT TEMPERATURE(℃) Figure 2.：Power Temperature Derating Curve DOCUMENT : SM6C0000NH SPECIFICATION FOR APPROVAL REVISION : A1 PAGE : 3 OF 7 5. Reliability Performance Test Item Short Time Overload Thermal Shock Low Temperature Storage Resistance to Soldering Heat Load Life Damp Heat with Load High Temperature Exposure Solderability Condition of Test Requirements 2.5 x Rated power for 5 seconds Refer to JIS C 5201-1 4.13 ∆R：± (0.5% + 0.0005Ω) -55 ~150℃ 1,000 cycles, 15 min at each extreme condition Refer to JIS C 5201-1 4.19 ∆R：± (0.5% + 0.0005Ω) Kept at -55℃, 1,000 hours Refer to JIS C 5201-1 4.23.4 ∆R：± (0.5% + 0.0005Ω) Dipped into solder at 270 ± 5 ℃ for 20 ± 1 seconds Refer to JIS C 5201-1 4.18 ∆R：± (0.5% + 0.0005Ω) Rated voltage for 1.5hours followed by a pause 0.5hour at 70 ± 3℃ Cycle repeated 1,000 hours Refer to JIS C 5201-1 4.25 ∆R：± (1.0% + 0.0005Ω) 40 ± 2℃ with relative humidity 90% to 95%. D.C. rated voltage for 1.5 hours ON 30 minutes OFF. Cycle repeated 1,000 hours Refer JIS C 5201-1 4.24 Kept atto170℃ for 1,000 hours ∆R：± (1.0% + 0.0005Ω) Without significant damage by flashover ( spark, arching ), burning or breakdown etc. Without distinct damage in appearance Without distinct damage in appearance Without distinct damage in appearance Without distinct damage in appearance Without distinct damage in appearance ∆R：± (1.0% + 0.0005Ω) Refer to JIS C 5201-1 4.23.2 Without distinct damage in appearance Temperature of Solder : 245 ± 5℃ Immersion Duration : 3 ± 0.5 second Refer to JIS C 5201-1 4.17 Uniform coating of solder cover minimum of 95% surface being immersed DOCUMENT : SM6C0000NH SPECIFICATION FOR APPROVAL Test Item Mechanical Shock Substrate Bending Condition of Test 100 G’s for 6milliseconds. 5 pulses Refer to JIS C 5201-1 4.21 Glass-Epoxy board thickness : 1.6mm Bending width : 2mm Between the fulcrums : 90mm Refer to JIS C 5201-1 4.33 REVISION : A1 PAGE : 4 OF 7 Requirements ∆R：± (0.5% + 0.0005Ω) Without mechanical damage such as break ∆R：± (0.5% + 0.0005Ω) Without mechanical damage such as break DOCUMENT : SM6C0000NH SPECIFICATION FOR APPROVAL REVISION : A1 PAGE : 5 OF 7 6. Recommended Solder Pad Dimensions L D 3264 W L D 4.00 8.00 2.00 W Cu Trace Unit : mm Sensing Trace Note : We recommend there is no circuit design between pads to avoid circuit short DOCUMENT : SM6C0000NH SPECIFICATION FOR APPROVAL REVISION : A1 PAGE : 6 OF 7 7. Packaging 7-1 Dimensions 7-1-1 Tape packaging dimensions 1.5+0.1 -0.0 0.3 max. 4.0 ± 0.1 Feed forward hole 2.0 ± 0.05 1.5 ± 0.1 1.75 ± 0.10 5.50 ± 0.05 B 12.0 ± 0.3 1.5 max. A Cavity 4.0 ± 0.1 Pulling direction A = 3.60 ± 0.20 B = 6.80 ± 0.20 Unit : mm 7-1-2 Reel dimensions 13.0±0.5 4.0 0 +0 - 0 .5 2.0±0.5 178.0±2.0 60.2±0.5 13.2±1.5 16.0±0.2 Unit : mm DOCUMENT : SM6C0000NH SPECIFICATION FOR APPROVAL 7-2 Peel Strength of Top Cover Tape The peel speed shall be about 300mm/min. The peel force of top cover tape shall between 0.1 to 0.7N Top Cover Tape 8 165 ~ 1 0° 0.1 ~ 0.7N Carrier tape 7-3 Number of Taping 2,000 pieces / reel 7-4 Label marking 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 : A1 PAGE : 7 OF 7