Metal Film Resistor
Axial Leaded Type
F
EATURE
Operating Temperature: -55 ~ 155ºC
High Precision: Tolerances of 1, 0.5, 0.25, 0.1, and 0.05%
Low T.C.R.: 200, 100, 50, 25, 15, 10, and 5ppm/ºC
MF Series
Power Ratings: Standard Type 1/8~2W, Miniature Type 1/4~3WS
Low Noise Design
P
ART
N
UMBERING
S
YSTEM
MF 25
(1)
No
(1)
(2)
(3)
(4)
(5)
(6)
(2)
F
(3)
2002 B
(4)
Item
(5)
TR
(6)
Code
MF
25
F
2002
B
B
Description
Metal Film Resistor
25: 1/4W
F: ±25ppm/ºC
2002:20KΩ
B: ±0.1%
B: Bulk
Axial Leaded Type
12:1/8W, 20: 1/6W, 40: 2/5W, 50:1/2W, 60: 3/5W, 100: 1W,
200: 2W, 300S: 3WS, S:miniature size
B: ±5, C: ±10, D: ±15, Blank: ±50, G: ±100, H: ±200ppm/ºC
First 3 digits are significant, 4 digit is multiplier,
“R” indicates decimal
A: ±0.05%, C: ±0.25%, D: ±0.5%, F: ±1%, J: ±5%
Package or Customer Product Reference:
A or TA: Tape and Ammo, R or TR: Tape and Reel
th
Series Reference
Meritek Series
Power Rating
T.C.R.
Resistance
Tolerance
Internal Control Code
E
LECTRICAL
C
HARACTERISTICS
A
ND
D
IMENSIONS
Power
Rating
1/8W
1/6W
1/4WS
2/5W
1/4W
1/2WS
3/5W
1/2W
1WS
1W
2WS
2W
3WS
Dimensions (mm)
D
1.8±0.3
1.8±0.3
1.8±0.3
1.8±0.3
2.3±0.3
2.3±0.3
2.3±0.3
3.2±0.5
3.2±0.5
4.5±0.5
4.5±0.5
5.0±0.5
5.0±0.5
L
3.4±0.3
3.4±0.3
3.55±0.45
3.55±0.45
6.3±0.5
6.3±0.5
6.3±0.5
9.0±0.5
9.0±0.5
11.5±1.0
11.5±1.0
15.5±1.0
15.5±1.0
H
29±2.0
29±2.0
29±2.0
29±2.0
28±2.0
28±2.0
28±2.0
26±2.0
26±2.0
35±2.0
35±2.0
32±2.0
32±2.0
d
0.45±0.03
0.45±0.03
0.45±0.03
0.45±0.03
0.55±0.03
0.55±0.03
0.55±0.03
0.65±0.03
0.65±0.03
0.78±0.03
0.78±0.03
0.78±0.03
0.78±0.03
Max Working
Voltage
150V
150V
200V
200V
250V
300V
350V
350V
400V
500V
500V
500V
500V
Max Overload
Voltage
300V
300V
400V
400V
500V
500V
500V
500V
600V
700V
700V
1000V
1000V
Dielectric
Withstand Voltage
300V
300V
300V
300V
500V
500V
500V
500V
500V
700V
700V
1000V
1000V
Resistance (Ω)
0.1~1, 1.1M~10M
1~1M
10~100K
Tolerance
±1%
±1%, ±0.5%
±0.25%, ±0.1%, ±0.05%
Series
E24
E24, E96
E24, E192
Rev. 7e 02/21/18
Meritek Electronics Corporation
|
www.meritekusa.com
Metal Film Resistor
Axial Leaded Type
C
HARACTERISTIC
C
URVES
MF Series
R
ELIABILITY
T
EST
C
ONDITION
A
ND
R
EQUIREMENT
Test
Short Time Overload
Temperature Coefficient of
Resistance (T.C.R.)
Voltage Proof
Pulse Overload
Insulation Resistance
Load Life
Load Life in Humidity
Temperature Cycling
Solderability
Resistance to Soldering
Heat
Resistance to Solvent
Terminal Strength
Condition
2.5 times RCVW for 5 seconds
Resistance value at room temperature (25ºC) and at
125ºC
In V-Block for 60 seconds
4 times RCWV for 10000 cycles
(1 seconds “ON” 25 seconds “OFF”)
In V-Block
70ºC at RCVW for 1000 hours
(1.5hours “ON”, 0.5hours “OFF”)
40±2ºC, 90~95% RH at RCWV fpr 1000hours
(1.5hours “ON”, 0.5hours “OFF”)
-55~125ºC for 5 cycles.
(0.5hrs. at extremes, transfer time < 30 seconds)
260±5ºC for 2±0.5 seconds
Soldering Iron Temperature: 260±5ºC
Apply to termination for 10±1 seconds
IPA for 5±0.5 minutes with ultrasonic
Direct load for 10 seconds in the direction of the
terminal leads
Requirement
∆R = ±(0.25%±0.05Ω)
By Type
By Type
∆R = ±(0.75%±0.05Ω)
>10000MΩ
∆R = ±(1.5%±0.05Ω)
∆R = ±(1.5%±0.05Ω)
∆R = ±(0.75%±0.05Ω)
95% minimum coverage
1/8W, 1/6W, 1/4WS, 0.4W: 0.75
1/4W, 1/2WS, 0.6W, 1/2W, 1WS: 0.5
1W, 2WS, 2W, 3WS: 0.25
No abnormality in coating and markings
Tensile: ≥ 2.5kg
Notes:
Reference Standards: IEC 60115-1
Storage Temperature: 25±3ºC; Humidity < 80% RH
Rated Continuous Working Voltage (RCWV) =
√. ∗ .
Meritek Electronics Corporation
|
www.meritekusa.com
Rev. 7e 02/21/18
Metal Film Resistor
Axial Leaded Type
P
ACKAGING
S
PECIFICATION
MF Series
Power
Rating
1/8W
1/6W
1/4WS
2/5W
1/4W
1/2WS
3/5W
1/2W
1WS
1W
2WS
2W
3WS
Tape Dimensions (mm)
A
52~53
26~27
52~53
26~27
52~53
52~53
73~74
52~53
73~74
B1, B2
1.2
1
1.2
1
1.2
1.5
1.5
1.5
1.5
S
5
5
5
5
5
5
Max Deviation of S
1mm per
10 Spacing
Box Dimensions (mm)
A
80
80
80
80
80
103
103
103
103
B
75
75
105
105
46
82
82
96
96
C
264
264
264
264
264
265
265
265
265
Quantity
Per Box
5,000
5,000
5,000
5,000
1,000
1,000
1,000
1,000
1,000
1mm per
10 Spacing
1mm per
10 Spacing
1mm per
10 Spacing
1mm per
10 Spacing
10
*Specifications subject to change without notice.
Meritek Electronics Corporation
|
www.meritekusa.com
Rev. 7e 02/21/18
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