UniOhm
Feature (
特性
)
•
•
•
•
•
Precision Metal Film Fixed Resistors
精密金属膜固定电阻器
RoHS Compliant
EIA standard color coding. EIA
标准色码
Flame retardant type available
可供不燃性涂装
Low noise & voltage coefficient
噪声½，电压系数小
Low temperature coefficient range
温度系数½
Multiple epoxy coating on vacuum-deposited metal film provideds superior moisture
protection
真空溅射金属皮膜涂多层环氧树脂，防水性效果½
• Nichrome resistive element provides stable performance in various environments
镍基金属膜层的采用½各项性½更加稳定
Part No.
料号
Type
类型
Power Rating
功率
Dimension (
尺寸
) (mm)
D
1.9±0.3
2.2±0.3
3.0±0.6
4.5±0.6
5.0±0.6
6.0±0.6
1.9±0.5
1.9±0.5
2.2±0.5
2.7±0.5
2.2±0.5
3.5±0.6
4.0±0.6
5.0±0.6
L
3.3±0.3
6.5±1.0
9.5±1.0
11.5±1.0
15.5±1.0
17.5±1.0
3.3±0.3
3.3±0.3
6.5±0.5
9.0±1.0
6.5±1.0
9.5±1.0
11.5±1.0
15.5±1.0
d±
0.05
0.45
0.54
0.54
0.65
0.70
0.75
0.45
0.45
0.54
0.54
0.54
0.60
0.65
0.7
H±3
28
28
28
28
28
28
28
28
28
28
28
28
28
负½½比率(%)
Percent rated load (%)
Ambient temperature (环境温度)(°C)
70°C
1/8W
1/4W
1/2W
1W
2W
3W
1/4W
0.4W
1/2W
1/2W
0.6W
1WS
2WS
3WS
Normal Size (
正常尺寸
)
MFR0W8
MFR0W4
MFR0W2
MFR01W
MFR02W
MFR03W
MFR0S4
MFR004
MFR0U2
MFR0S2
MFR006
MFR01S
MFR02S
MFR03S
MF-12
MF-25
MF-50
MF-100
MF-200
MF-300
MF-25-S
MF-40-SS
MF-50-SS
MF-50-S
MF-60-S
MF-100-S
MF-200-S
MF-300-S
Derating Curve (
降功率曲线
)
28
Small Size & Extra Small Size (
小型及超小型尺寸
)
Standard Non-flammable coating for Small size type (except MF-50-S). [
小尺寸标准不燃性涂装 ( MF-50-S除外)
]
Part No.
料号
Type
类型
Dielectric
Withstanding
Voltage
绝缘耐压
Max.
Working
Voltage
200V
200V
250V
250V
Max.
Overload
Voltage
400V
400V
500V
500V
Standard Order
标准品
Tolerance
公差
Special Order
特殊订购品
TCR
温度系数
TCR
温度系数
Resistance Range Tolerance
阻值范围
公差
Resistance Range
阻值范围
最大工½电压 最大过负荷电压
MFR0W8
MFR0S4
MFR004
MFR0W4
MFR0U2
MFR006
MFR0S2
MFR0W2
MFR01W
MFR02W
MFR03W
MFR01S
MFR02S
MFR03S
MF-12
MF-25-S
MF-40-SS
MF-25
MF-50-SS
MF-60-S
MF-50-S
400V
200V
500V
250V
±1%
±2%
±5%
±1%
±2%
±5%
±1%
±2%
±5%
±1%
± 50
± 100
± 200
± 50
± 100
± 200
± 50
± 100
± 200
± 50
± 100
± 200
±50
±100
±200
10Ω-1MΩ
10Ω-1MΩ
1Ω-1MΩ
10Ω-1MΩ
1Ω-1MΩ
1Ω-1MΩ
10Ω-1MΩ
10Ω-1MΩ
1Ω-1MΩ
51.1Ω-1MΩ
1Ω-1MΩ
± 0.25%
± 0.5%
± 0.5%
± 0.1%
± 0.25%
± 0.5%
± 0.1%
± 0.25%
± 0.5%
± 0.1%
± 0.5%
±0.1%
± 15
± 25
± 50
± 15
± 25
± 50
± 15
± 25
± 50
± 15
± 25
± 50
±15
±25
±50
51.1Ω ~ 200KΩ
51.1Ω ~ 511KΩ
51.1Ω ~ 511KΩ
10Ω ~ 1MΩ
10Ω ~ 1MΩ
10Ω ~ 1MΩ
100Ω ~ 330KΩ
51.1Ω ~ 511KΩ
10Ω ~ 1MΩ
100Ω~ 330KΩ
51.1Ω ~ 511KΩ
51.1Ω ~ 1MΩ
100Ω~330KΩ
51.1Ω~511KΩ
51.1Ω~1MΩ
700V
MF-50
MF-100
MF-200
MF-300
MF-100-S
MF-200-S
MF-300-S
350V
350V
1000V
350V
700V
500V
1000V
±2%
±5%
51.1Ω-1MΩ
± 0.25%
350V
500V
700V
1000V
±1%
±2%
±5%
10Ω~1MΩ
±0.25%
±0.5%
1
Precision Metal Film Fixed Resistors
RoHS Compliant
精密金属膜固定电阻器
UniOhm
Performance Specification (
性½
)
Temperature coefficient
温度系数
according to page 58 (
参考第
58
页
)
Short-time overload
短时间过负荷
ΔR/R ≤ ±(0.5%+0.05Ω),
with no evidence of mechanical damage (
无可见机械损伤
)
Dielectric withstanding voltage
Pulse overload
Terminal strength
Soldering heat
Solderability
Resistance to solvent
Temperature cycling
Load life in humidity
Load life
绝缘耐压
脉冲过负荷
端子强度
耐焊接热
可焊性
耐溶剂
温度循环
湿度寿½
负½½寿½
With no evidence of flashover, mechanical damage, arcing or insulation breakdown
无击穿、飞弧及可见机械损伤
ΔR/R ≤ ±(1%+0.05Ω),
with no evidence of mechanical damage (
无可见机械损伤
)
No evidence of mechanical damage (
无可见机械损伤
)
ΔR/R ≤ ±(1%+0.05Ω),
with no evidence of mechanical damage (
无可见机械损伤
)
Min. 95% coverage (
最少
95%
覆盖率
)
No deterioration of protective coating and marking (
包封层，色码完整
)
ΔR/R ≤ ±(1%+0.05Ω),
with no evidence of mechanical damage (
无可见机械损伤
)
Normal type (
普通型
):
ΔR/R ≤ ±1.5%;
Flame retardant type (
阻燃型
):
ΔR/R ≤ ±5%.
Normal type (
普通型
):
ΔR/R ≤ ±1.5%; Flame retardant type (
阻燃型
): ΔR/R ≤ ±5%.
Current Noise Level (
电流噪声水平
)
Current noise(μV/v)
电流噪声(μV/v)
Ordering Procedure (Example:
MFR 1/8W 1% 50PPM 47.5KΩ T/R-5000)
订购方式
(
例如
: MFR 1/8W 1% 50PPM 47.5KΩ T/R-5000)
M F R 0 W 8 F 4 7 5 2 T 5 0
Product Type (产品类型):
MFR = Metal Film Fixed Resistors
(
精密金属膜固定电阻 )
Normal size
(
正常尺寸
):
WG = 1/16W
W8 = 1/8W
W6 = 1/6W
W4 = 1/4W
W2 = 1/2W
1W = 1W
2W = 2W
3W = 3W
Small size
(
小尺寸
):
S4 = 1/4W-S
S2 = 1/2W-S
06 = 0.6W-S
1S=1WS
2S=2WS
3S=3WS
Extra small size
(
超小尺寸
):
U2 = 1/2W-SS
04 = 0.4W-SS
Wattage
(
功率
):
Special Feature (特征):
0 = Standard (
标准品
)
F = Flame retardant (
阻燃型
)
I = Non-Inductive (
无感型
)
C = Flammable type (
可燃性
)
Resistance Value(阻值)
:
5%(E-24 series)
The 1
st
digit is “0”, the 2
nd
& 3
rd
digits are
for the significant figures of the resistance and
the 4
th
indicate the number of zeros following
5%
产品
(E-24
系列阻值
):
第
1
½是
0,
第
2、3
½表示阻值的有
效数 , 第
4
½表示有几个
0.
≤2%(E-24,E-96 series):
The 1
st
digit is “0”, the 2
nd
& 3
rd
digits are
for the significant figures of the resistance and
the 4
th
indicate the number of zeros following;
≤2%
产品
(E-24, E-96
系列阻值
):
第
1~3
½表示阻值的有效数 , 第
4
½
表示有几个
0.
Packing Qty.
(包装数量):
1 = 1,000pcs
2 = 2,000pcs
3 = 3,000pcs
4 = 4,000pcs
5 = 5,000pcs
A = 500pcs
B = 2,500pcs,
0 = Bulk/Box
(
散装 / 盒装
)
Additional Information (注):
0 = NIL (
标准品
)
Tolerance & TCR (公差&温度系数):
B=±0.1% 15PPM, C=±0.25% 25PPM,
D=±0.5% 50PPM, F=±1% 50PPM,
G=±2% 100PPM, J=±5% 200PPM
For special tolerance-TCR requirement,
please indicate in
the purchasing order. Example: ±1% 15PPM
(
有特殊要求请订单说明。例如
:±1% 15PPM)
Packing Type (包装类型):
A = Tape/Box (
编带 / 盒装
)
T = Tape/Reel (
编带 / 卷装
)
B= Bulk/Box (
散装 / 盒装
)
P = Tape/Box of PT-26 product
[
编带（PT-26 产品）/ 盒装
]
2
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