DOCUMENT : SRG00000NH REVISION : A0 PAGE : 1 OF 6 SPECIFICATION FOR APPROVAL 3W 3637 Low Resistance Chip Resistor (Lead free / Halogen Free) 1. Scope This specification applies to 9.14mm x 9.4mm size 3W, fixed metal foil with ceramic carrier current sensing resistors used in electronic equipment. 2. Type Designation RL36370 – □□□□ – □ (1) (2) (3) Where (1) Series No. (2) Resistance value : For example : R002 = 2mΩ R010 = 10mΩ (3) Tolerance : F = ± 1% G = ± 2% J = ± 5% 3. Outline Designation and Marking 3-1 Outline Designation (1) (2) (3) (4) (5) Substrate Resistor Terminals Protection coat Marking Alumina 96% Ni alloy Sn (on Cu ) Heat resistive epoxy resin Epoxy resin Dimensions (mm) Code Letter 3637 L 9.14 ± 0.25 W 9.40 ± 0.25 C 1.55 ± 0.25 D 0.85 ± 0.25 (1mΩ) 3.5 ± 0.25 (≧2mΩ) 2.2 ± 0.25 a t Figure 1. Construction and Dimensions 0.88 ± 0.20 DOCUMENT : SRG00000NH REVISION : A0 PAGE : 2 OF 6 SPECIFICATION FOR APPROVAL 3-2 Marking Resistance value is marked on the top surface. Ex.) 2mΩ → R002 10mΩ → R010 4. Ratings 4-1 Specification Power Rating* 3W Resistance Value 1 mΩ ~ <2 mΩ 2 ~ 10mΩ Temperature Coefficient of Resistance 0~+150 ppm/℃ ±100ppm/℃ Resistance Tolerance ± 1%,± 2%,± 5% Insulation Resistance Over 100MΩ ( P*R)1/2 Rated Voltage (V) Note * : RATED LOAD(%) 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 0 70 -55 170 AMBIENT TEMPERATURE(℃) Figure 2.：Power Temperature Derating Curve 4-2 Operation and Storage Temperature Range -55℃ to +170℃ DOCUMENT : SRG00000NH REVISION : A0 PAGE : 3 OF 6 SPECIFICATION FOR APPROVAL 5. Life test Test Item Condition of Test Requirements Short Time Overload 5 * Rated power for 5 seconds Refer to JIS C 5201-1 4.13 ΔR : ± (0.5%+0.0005Ω) Thermal Shock -55 ~150℃ 1,000 cycles, 15 min at each extreme condition Refer to JIS C 5201-1 4.19 ΔR : ± (1.0%+0.0005Ω) Low Temperature Storage Kept at -55℃, 1,000 hours Refer to JIS C 5201-1 4.23.4 ΔR : ± (1.0%+0.0005Ω) Resistance to Soldering Heat Dipped into solder at 270 ± 5℃ for 20 ± 1 seconds Refer to JIS C 5201-1 4.29 ΔR : ± (0.5%+0.0005Ω) Load Life Rated voltage for 1.5hours followed by a pause 0.5hour at 70 ± 3℃. Cycle repeated 1000 hours Refer to JIS C 5201-1 4.25 ΔR : ± (1.0%+0.0005Ω) Damp Heat with Load 40 ± 2℃ with relative humidity 90% to 95%. Cycle repeated 1,000 hours Refer to JIS C 5201-1 4.24 ΔR : ± (1.0%+0.0005Ω) High Temperature Exposure Kept at 170℃ for 1,000 hours Refer to JIS C 5201-1 4.23.2 Solderability Mechanical Shock Bending Test ΔR : ± (1.0%+0.0005Ω) Temperature of Solder : 245 ± 5℃ Immersion Duration : 3 ± 0.5 seconds Refer to JIS C 5201-1 4.17 100 G’s for 6milliseconds. 5 pulses Refer to JIS C 5201-1 4.21 Uniform coating of solder cover minimum of 95% surface being immersed ΔR : ± (0.5%+0.0005Ω) 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) DOCUMENT : SRG00000NH REVISION : A0 PAGE : 4 OF 6 SPECIFICATION FOR APPROVAL 6. Recommended Solder Pad Dimensions 3637 a b c d e 1mΩ 4.3 9.9 1.68 0.6 1.9 2.95 9.9 1.68 0.6 4.6 2~10mΩ Unit : mm 7. Packaging 7-1 Dimensions 7-1-1 Tape packaging dimensions Symbol Spec Symbol Spec Ao 9.6±0.10 T 0.4 Max. Bo 9.9±0.10 E 1.75±0.10 Ko 1.2 Max. F 7.50±0.10 Po 4.0±0.10 Do 1.5±0.1 P1 12.0±0.10 D1 1.5 Max. P2 2.0±0.10 W 16.0±0.2 DOCUMENT : SRG00000NH REVISION : A0 PAGE : 5 OF 6 SPECIFICATION FOR APPROVAL 7-1-2 Reel dimensions C D H F B A G A 17.4 ± 1.0 F 20.2 ± 0.1 B 2.0 ± 0.2 G 13.5± 0.5 C 99 ± 1.0 H 2.5 ± 0.5 D 380 ± 0.5 Unit : mm DOCUMENT : SRG00000NH SPECIFICATION FOR APPROVAL 7-2 Peel Strength of Top Cover Tape The peel speed shall be about 300mm/minute The peel force of top cover tape shall between 0.1 to 0.7N Top Cover Tape 165 ~ 180° 0.1 ~ 0.7N Carrier tape 7-3 Number of Taping 1,000 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 : A0 PAGE : 6 OF 6