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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 1ppm C are achieved. Under high temperature and humid condition of 85 C and 85%RH, and at 155 C(duration:10000 hours for both tests), superior reliability of only less than 0.1% of change in resistance value is realized.
SPECIFICATIONS Mechanical
1
L
4
1
L
W1 W W1
2 3 2
4
W1 W W1
3
Dimension (Inch Size) L W W1 W2 a b T 1
RM2012 (0805) 2.0 1.25 0.4 0.35 0.5 0.6 0.4 4 R2 3 2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 1 R1
RM3216 (1206) 3.2 1.6 0.4 0.4 1.0 1.0 0.4 0.2 0.2 0.25 0.2 0.25 0.2 0.1 4 R2 3 B Type
T
2 1 3 4 b a
T
a 2 1 3 4 b
W2 W2
W2 W2
(unit : mm)
B Type
A Type
Equivalent R1 circuits 2
A Type RM 2012 0.05W/element,0.1W/package 100 100k 0.1(B), 0.5(D) 0.05(W),0.1(B), 0.5(D) (2k (100 R 2k ) R 100k )
Electrical
Type Resistance Range ( ) Absolute Tol. %(code)
RM 3216 0.063W/element,0.125W/package 100 330k 0.1(B), 0.5(D) 0.05(W),0.1(B), 0.5(D) (2k (100 R 2k ) R 330k ) 0.05(W) (ratio 1) 0.05(W) (1 ratio 10) 0.05(W) (100 ratio 10) 10 N 25 300 R 330k 5(V) (ratio 1) 5(V) (1 ratio 3) 5(V) (100 ratio 3)
Tracking Tol. %(code)
Absolute TCR ppm/ C(code)
Tracking TCR ppm/ C(code) Max Operating Voltage Package
0.01(L), 0.02(P), 0.01(L), 0.02(P), 0.05(W) (ratio 1) 0.02(P), 0.02(P), 0.05(W) (1 ratio 10) 0.05(W) (100 ratio 10) 10 N 25 25 25 (100 R 300 ) (100 R 300 ) 300 R 100k 1(X), 1(X), 5(V) (ratio 1) 2(W), 2(W), 5(V) (1 ratio 3) 5(V) (100 ratio 3)
25V 50V 500pcs/reel(05), 1,000pcs/reel(10), 5,000pcs/reel(50)
* 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.

Ratio 1:1 R1 1k 10k 100k 1k 10k 100k 1k 10k 100k 1k 10k R2 1k 10k 100k 2k 20k 200k 3k 30k 300k 4k 40k Ratio 1:5 R1 1k 2k 10k 1k 10k 1k 10k 1k 2k 10k R2 5k 10k 50k 6k 60k 9k 90k 10k 20k 100k Ratio 1 : 20 R1 1k 2k 5k 1k 2k 1k 2k 1k 2k R2 20k 40k 100k 25k 50k 50k 100k 100k 200k
1:2
1:6 1:9
1 : 25 1 : 50 1 : 100
1:3
1 : 10
1:4
susumu group catalog
Load life test
Load life (85 C) 0.20 0.15 0.10 Resistance change(%) 0.05 0.00 0.05 0.10 0.15 0.20 Time (h) Absolute Tracking Test conditions: Ta 85 C P 50mW 90minON/ 30minOFF Sample: RM2012B-103/103 0.20 0.15 0.10 Resistance change(%) 0.05 0.00 0.05 0.10 0.15 0.20 Time (h) Absolute Tracking Test conditions: Ta 85 C P 63mW 90minON/ 30minOFF Sample: RM3216B-203/203 Load life (85 C)
Moisture and life test
Temperature Humidity Bias (85 C 85%) 0.20 0.15 0.10 Resistance change(%) 0.05 0.00 0.05 0.10 0.15 0.20 Time (h) Absolute Tracking Test conditions: Ta 85 C Ha 85%RH P 50mW 0.1 90minON/ 30minOFF Sample: RM2012B-103/103 0.20 0.15 0.10 Resistance change(%) 0.05 0.00 0.05 0.10 0.15 0.20 Time (h) Absolute Tracking Test conditions: Ta 85 C Ha 85%RH P 63mW 0.1 90minON/ 30minOFF Sample: RM3216B-203/203 Temperature Humidity Bias (85 C 85%)
High temperature exposure test
High Temperature Storage (155 C) 0.20 0.15 0.10 Resistance change(%) 0.05 0.00 0.05 0.10 0.15 0.20 Time (h) Absolute Tracking Resistance change(%) Test conditions: Ta 155 C No load Sample: RM2012B-103/103 0.20 0.15 0.10 0.05 0.00 0.05 0.10 0.15 0.20 Time (h) Absolute Tracking Test conditions: Ta 155 C No load Sample: RM3216B-203/203 High Temperature Storage (155 C)
PART NUMBER
RM 2012 A - ***/*** - P W X L 10
Package Tracking Resistance Tolerance Tracking Temperature Coefficient of Resistance Resistance Tolerance Temperature Coefficient of Resistance Resistance Circuit Dimensions Part Code
susumu group catalog

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