RM series, ultra-precision & ultra-reliability metal film chip network resistors Tight tracking resistance tolerance of 0.01% and tracking temperature coefficient of resistance of 1ppmC are achieved. Under high temperature and humid condition of 85C and 85%RH, and at 155C(duration:10000 hours for both tests), superior reliability of only less than 0.1% of change in resistance value is realized. RoHS compliant Completely lead free SPECIFICATIONS a 1 Mechanical b 4 W 2 b 3 a T L Equivalent circuits 1 4 R1 R2 2 3 A Type Electrical 1 Type Power Resistance Range () Absolute Tol. %(code) Tracking Tol. %(code) Absolute TCR ppm/C(code) Tracking TCR ppm/C(code) 4 R1 R2 2 Dimension (Inch Size) RM2012 (0805) RM3216 (1206) L W T a b 2.00.2 1.250.2 0.40.1 0.60.2 0.350.2 3.20.2 1.60.2 0.40.1 1.00.2 0.40.2 (unit : mm) 3 B Type RM 2012 RM 3216 0.05W/element,0.1W/package 0.063W/element,0.125W/package 100100k 100330k 0.1(B),0.5(D) 0.05(W),0.1(B),0.5(D) 0.1(B),0.5(D) 0.05(W),0.1(B),0.5(D) (2k≦R≦100k) (2k≦R≦330k) (100≦R＜2k) (100≦R＜2k) 0.01(L),0.02(P),0.05(W) (ratio1) 0.01(L),0.02(P),0.05(W) (ratio1) 0.02(P),0.05(W) (1＜ratio≦10) 0.02(P),0.05(W) (1＜ratio≦10) 0.05(W) (100≧ratio＞10) 0.05(W) (100≧ratio＞10) 25(P) 25(P) 10(N),25(P) 10(N),25(P) (100≦R＜300) (100≦R＜300) (300≦R≦100k) (300≦R≦330k) 1(X), 5(V) (ratio1) 1(X), 5(V) (ratio1) 2(W),5(V) (1＜ratio≦3) 2(W),5(V) (1＜ratio≦3) 5(V) (100≧ratio＞3) 5(V) (100≧ratio＞3) • Please contact us for TCR 5ppm/ C for 300 or more in RM2012,RM3216 • Please contact us for other variety than these sizes and customized specifications. <Standard combination of resistance values> Ratio 1:1 1:2 1:3 1:4 R1（Ω） 1k 10k 100k 1k 10k 100k 1k 10k 100k 1k 10k R2（Ω） 1k 10k 100k 2k 20k 200k 3k 30k 300k 4k 40k Ratio 1:5 1:6 1:9 1 : 10 R1（Ω） 1k 2k 10k 1k 10k 1k 10k 1k 2k 10k susumu group catalog R2（Ω） 5k 10k 50k 6k 60k 9k 90k 10k 20k 100k Ratio 1 : 20 1 : 25 1 : 50 1 : 100 R1（Ω） 1k 2k 5k 1k 2k 1k 2k 1k 2k R2（Ω） 20k 40k 100k 25k 50k 50k 100k 100k 200k Load life test Load life (85C) Load life (85C) 0.20 0.20 Test conditions: Ta85C P50mW 90minON/ 30minOFF 0.15 0.10 0.05 0.00 0.05 0.10 0.15 0.20 100 1000 0.00 0.05 0.10 0.20 10000 Sample: RM3216B-203/203 0.05 0.15 Absolute Tracking 10 Test conditions: Ta85C P63mW 90minON/ 30minOFF 0.15 Resistance change(%) Resistance change(%) 0.10 Sample: RM2012B-103/103 Absolute Tracking 10 100 Time (h) 1000 10000 Time (h) Moisture and life test Temperature Humidity Bias (85C 85%) Temperature Humidity Bias (85C 85%) 0.20 0.20 Test conditions: Ta85C Ha85%RH P50mW0.1 90minON/ 30minOFF 0.15 0.10 0.05 0.00 0.05 0.10 0.15 0.20 100 1000 0.00 0.05 0.10 0.20 10000 Sample: RM3216B-203/203 0.05 0.15 Absolute Tracking 10 Test conditions: Ta85C Ha85%RH P63mW0.1 90minON/ 30minOFF 0.15 Resistance change(%) Resistance change(%) 0.10 Sample: RM2012B-103/103 Time (h) Absolute Tracking 10 100 1000 10000 Time (h) High temperature exposure test High Temperature Storage (155C) High Temperature Storage (155C) 0.20 0.20 Test conditions: Ta155C No load 0.15 Sample: RM2012B-103/103 Sample: RM3216B-203/203 0.10 Resistance change(%) Resistance change(%) 0.10 0.05 0.00 0.05 0.10 0.15 0.20 Test conditions: Ta155C No load 0.15 100 1000 0.00 0.05 0.10 0.15 Absolute Tracking 10 0.05 10000 0.20 Time (h) Absolute Tracking 10 100 1000 10000 Time (h) PART NUMBER RM 2012 A - ***/*** - P W X L 10 Package (10=1,000pcs, 50=5,000pcs) Tracking Resistance Tolerance Tracking Temperature Coefficient of Resistance Resistance Tolerance Temperature Coefficient of Resistance Resistance Circuit Dimensions Part Code susumu group catalog