Ultra-Precision Resistor
(Transfer Molded)
TCR, Resistance Range, Tolerance, Rated Power
MA
Type
TCR (ppm/°C)
-55°C to +125°C
0±15 (W)
0±5 (X)
0±5 (X)
0±2.5 (Y)
0±1 (Z)**
0±5 (X)
0±5 (X)
0±2.5 (Y)
0±1 (Z)**
0±5 (X)
0±5 (X)
0±2.5 (Y)
0±5 (X)
0±2.5 (Y)
0±1 (Z)**
Resistance
Range ( )
1 to 5
5 to 30
30 to 200k
5 to 30
30 to 400k
5 to 30
30 to 100
100 to 80k
Resistance Tolerance (%)*
±0.5 (D) ±1 (F)
±0.1 (B) ±0.5 (D) ±1 (F)
±0.005 (V) ±0.01 (T)
±0.02 (Q) ±0.05 (A)
±0.1 (B) ±0.5 (D) ±1 (F)
±0.1 (B) ±0.5 (D) ±1 (F)
±0.005 (V) ±0.01 (T)
±0.02 (Q) ±0.05 (A)
±0.1 (B) ±0.5 (D) ±1 (F)
±0.1 (B) ±0.5 (D) ±1 (F)
±0.05 (A) ±0.1 (B)
±0.5 (D) ±1 (F)
±0.01 (T) ±0.02 (Q)
±0.05 (A) ±0.1 (B)
±0.5 (D) ±1 (F)
0.125
Rated Power (W)
at 125°C
0.3
0.2 at 150k
or above
MA
MC
MB
MB
MD
MC
0.5
0.3 at 200k
or above
MD
Composition of Type Number
MA Y 10K000 A
epyT
RCT
eulaV ecnatsiseR
ecnareloT
Resistance value, in ohm, is expressed by a series of six characters, five of
which represent significant digits. The sixth R or K is a dual-purpose letter that
designates both the value range (R for ohmic; K for kilo-ohm) and the location
of decimal point.
Symbols in parentheses are for type number composition.
*Resistance figures are the values obtained by measuring the leads at point 12.7±3.2mm away from the base
for Type MA and at point 5.0±1.0mm for Types MC, MB and MD, but, in case of resistance below 10 ohm, the
value at 1.6±0.6mm away from the base for all types.
**Temperature characteristic Z is applicable for temperature range between 0°C and 60°C.
Rated Power Percentage
Configuration
Type
L
L
1
W
W
1
W
2
T
F
d
MA
7.9±0.2
1.0 max.
8.3±0.2
8.0±0.2
0.3 max.
2.8±0.2
3.81±0.25
25±10
MC
2.3±0.2
5.08±0.25
16
2
W
W
1
W
:elpmaxE
Power Derating Curve
(%)
200
150
100
50
70
25
50
75
100
125
150
175 ( C)
Ambient Temperature
d
T
1
L
DSCC Specifications
F
L
97009
97010
97011
MB
13.0±0.3
1.5 max.
10.0±0.3
9.5±0.3
0.5 max.
4.0±0.3
7.5±0.5
10±3
0.65±0.05
MD
7.4±0.2
0.8 max.
6.0±0.2
5.7±0.2
0.4 max.
2.3±0.2
5.08±0.25
Dimensions in mm
Performance
Parameters
Maximum Rated Operating Temperature
Working Temperature Range
Maximum Working Voltage
Power Conditioning
Thermal Shock
Overload
Solderability
Resistance to Solvents
Low Temperature Storage
Low Temperature Operation
Terminal Strength
Dielectric Withstanding Voltage
Insulation Resistance
Resistance to Soldering Heat
Moisture Resistance
Shock (Specified Pulse)
Vibration, High Frequency
Life
Life 70°C Power Rating
Storage Life
High Temperature Exposure
Current Noise
Voltage Coefficient
Thermal EMF
Type MA meets requirements of MIL-PRF-55182/9.
Test Condition
MIL-PRF-55182/9 Specification
ALPHA Typical Test Data
125°C
-65°C to +175°C
MA=MC=300V, MB=350V, MD=250V
125°C, Rated Power, 100 hrs.
-65°C/30 min. +150°C/30 min., 5 cycles
Rated Power x 6.25, 5 sec.
Steam Aging 8 hrs., 245°C, 5 sec.
1 lsopropyl Alcohol + Mineral Spirits
2 Water + Butyl Cellosolve + Monoethanolamine
-65°C, 24 hrs.
-65°C, Rated Voltage, 45 min.
0.908kg (2 pounds), 10 sec.
Atmospheric: 300V rms. Barometric: 200V rms.
DC 100V, 2 min.
+260°C, 10 sec.
+65°C to -10°C, 90% RH to 98% RH, Rated Voltage, 10 cycles (240 hrs.)
100G, 6ms, Sawtooth Wave, X, Y, each 10 shocks
20G, 10Hz to 2,000Hz to 10Hz, 20min., X, Y, each 4 hrs.
125°C, Rated Voltage, 1.5 hr. – ON, 0.5 hr. – OFF, 2,000 hrs.
70°C, Rated Voltage x 2, 1.5 hr. – ON, 0.5 hr. – OFF, 2,000 hrs.
15°C to 35°C, 15% RH to 75% RH, No Load, 10,000 hrs.
175°C, No Load, 2,000 hrs.
±(0.20%+0.01 )
±0.05%
±0.05%
over 95% coverage
no damage
±0.05%
±0.05%
±0.02%
±0.02%
over 10,000M
±0.02%
±0.05%
±0.01%
±0.02%
±0.05%
±0.05%
±0.005%
±0.5%
-32dB
0.0005%/V
1.0 V/°C
±0.005%
±0.005%
±0.005%
over 95% coverage
no damage
±0.0025%
±0.0025%
±0.0025%
±0.0025%
over 10,000M
±0.0025%
±0.01%
±0.0025%
±0.0025%
±0.015%
±0.015%
±0.0025%
±0.015 %
-42dB
0.00003%/V
0.1 V/°C
Frequency Characteristics
Temperature of Resistor Surface
MA, MC
)Wm(
yxopE dedloM
fo ecafruS
DM ,CM ,AM
yxopE dedloM
fo ecafruS BM
007
006
rewoP deilppA
005
004
003
Wm/C¡11.0 =
Wm/C¡90.0 =
Wm/C¡21.0 =
tnemelE evitsiseR
fo ecafruS BM
tnemelE evitsiseR
fo ecafruS CM ,AM
tnemelE evitsiseR
fo ecafruS DM
DM
R
BM
R
R CM ,AM
002
001
)C¡( T
07
06
esiR erutarepmeT
05
04
03
02
01
)zHM(
001
k05
k01
001
05
k1
ycneuqerF
01
1
)%(
051
001
05
)CD(R/)CA(R
17
电机驱动控制（Motor Control）
