High Power Current Sensing Resistor for CUM 2512
Scope:
1.1
T
his specification is covered CUM2512 series only
(此電流檢測電阻器規格書只包含 CUM2512
產品)
2.
1.
3. Product Constructional (產品結構):
3.1
The resistors are constructed in a high grade
material, Internal metal electrodes are added at
each end and connected by a resistive paste that is
applied to the top surface of the metal alloy (本司
sensing,
voltage
的電流檢測電阻器是以高規格的材料所建構成。金
屬端電極附著在合金板的末端並且保護層與合金板
的上層連接).
3.2
The resistive layer is covered with a protective
coat, and two external end terminations are
added.
Wrap-around
terminations have an
electroplated nickel barrier and pure Tin (lead
free) or matte-tin finish, ensuring excellent
`leach´ resistance properties and solderability (電
阻層以保護層(漆)來包覆並加上兩個電極端。電極
端以電鍍鎳為屏障並以純錫(無鉛)或表面無光澤的
錫來包覆，來確保極½銲錫性).
Product Features (產品特性)::
2.1
Applications
include
current
division and pulse applications (應用範圍包括電流
感應，分壓及脈衝應用)
2.2
Suitable for high precision current sensing circuit
protection application (適用於高精度的電流感應器
½應用於產品的保護).
2.3
The resistive material stable and ultra low TCR.
Low and Stable TCR
≤±50ppm/°C
(穩定的合金板材
料可提供穩定且½的溫度系數。穩定且½的溫度系數
可控制於≤±50ppm/°C).
2.4
Specially selected and stabilized materials allow for
high temperature derating to + 170 °C (精心挑選並
穩定材料允許高溫降額至+170°C)
2.5
Pure tin plating provides compatibility with lead
(Pb) free and lead containing soldering processes (產
品電極端½用純錫電鍍，適合於無鉛與含鉛的銲接½
程).
2.6
Excellent stability (|ΔR/R|
≤
±1.0 % for 1000 h at 70
°C) different environmental conditions (在不同的環
境下有極½的穩定度(誤差值≤
± 1.0 %，當產品處於 70
度
C/1,000
小時下)).
2.7
Compliant to RoHS directive 2011/65/EU and
Halogen free (符合 RoHS
指令
2011/65/EU
指令與無
鹵的要求).
2.8
Flame retardant type material is used to meet UL94
V-0 requirements (不燃型材料符合 UL94 V-0
的要
求).
Fort Technology Co., Ltd
www.fort-tec.com ,
Document #: FT-SPEC-TPE-2512U-ALL-V5, Revision 2017/04/17
Page 1 of 6
High Power Current Sensing Resistor for CUM 2512
4.
Product Specifications(產品規格):
Max.
# of
Type
類別
Terminals
Rating
Power
功率(W)
Max.
Rating
Current
Max.
Overload
Current
TCR (ppm/
°C
)溫
度系數
Resistance Range (mΩ)*
電阻值範圍
F (±1%);
D (±0.5%)
G (±2%);
J (±5%)
7.0~680.0
≤±50
7.0~450.0
7.0~100.0
0.5~680.0
0.5~450.0
0.5~100.0
-55~+170
°C
Operating
Temperature
操½溫度
電極端數目 最大額定 最大額定 最大過負
電流(A) 載電流(A)
1
CUM 2512
Remark
備註:
44.72
63.25
77.46
100.00
141.42
134.16
2
2
3
a. “*” Special tolerance and range of resistance are under requested.(“*”如需特殊的公差和阻值請與我們聯絡).
5.
Power Derating Curve(功率減额曲線):
5.1 The Operating Temperature Range: -55°C ~+170°C.(溫度範圍: -55°C ~+170°C).
5.2 For resistors operated in ambient temperatures above 70°C, power rating must be derated in accordance with
the curve below(當電阻工½在溫度超過 70°C
時，額定功率必须減额，減额曲線依據下圖)：
120
Rated Power in %
100
80
60
40
20
0
-55
-50
-25
0
+25
+50
+75
+100 +125 +150 +170
70
Ambient Temperature in °C
6.
Rating Current(額定電流):
6.1 The following equation may be used to determine the DC (Direct Current) or AC (Alternating Current) (RMS,
root mean square value) of normal rated power. However, if the result value exceeds the highest current of
regulated standards (paragraph 5), the highest normal rated power is to be used
(以下的公式也許被用於確定DC (直流電)或AC (交流電)電流(RMS，均方根值)
的正常額定功率。無論如½，如果
結果超出被調控的最高標準電流(參考第五章節)時，最高的正常額定功率將被½用).
Remark:
a.
c.
I: Rating Current.
R: Resistance.
b. P: Rating Power.
I =
√
P/R
Fort Technology Co., Ltd
Page 2 of 6
www.fort-tec.com ,
Document #: FT-SPEC-TPE-2512U-ALL-V5, Revision 2017/04/17
High Power Current Sensing Resistor for CUM 2512
7.
Ordering Information(訂購訊息):
CUM
2512
-
1
4
F
R003
Power Rating
Model（種類） Size (尺寸)
（Watts）
額定功率(瓦特)
●
1: 1.0W,
CUM
2512
●
2: 2.0W,
●
3: 3.0W
Remark
備註:
Packing*
包裝
Tolerance**
公差
●
D=±0.5%;
Resistance***
電阻值
●
4: 4,000pcs
●
F=±1.0%;
●
G=±2.0%;
●
J=±5.0%
e.g.:
R003: 3mΩ
R100: 100mΩ
a.
“*”
The packing quantity per reel are listed below (“*”:每個膠盤可裝的產品數量)：
Model (種類)
CUM2512
Tape Width (寬度)
12 mm/embossed plastic
Diameter (直徑)
178 mm/7”
Piece/reel
(標準(每個膠盤))
4,000 pieces (4,000
顆)
b. “**” Special tolerance and range of resistance are under requested (“**”如需特殊的公差和阻值請與我們聯絡).
c. “***” Normal product order information has 3 digits, if includes one decimal point then the order information
should be 4 digits (e.g. 0.5mΩ is R0005), if includes 2 decimal points, then it should be 5 digits (e.g. 0.25mΩ is R00025)
(“***”
正常的產品是三碼, 如有一½小數點則為四碼
(例如 0.5mΩ
是
R0005),
如有兩½小數點則為五碼
(例如 0.25mΩ
是
R00025)).
8.
Physical Dimensions(產品尺寸):
Fort Technology Co., Ltd
www.fort-tec.com ,
Document #: FT-SPEC-TPE-2512U-ALL-V5, Revision 2017/04/17
Page 3 of 6
High Power Current Sensing Resistor for CUM 2512
Maximum
Power Rating
Type
型別
(Watts)
最大額定功率
(瓦特)
Resistance
Range (mΩ)
(電阻值範圍)
Dimensions - in inches (millimeters)尺寸-英吋(公釐)
L
W
H
0.026±0.010
(0.670±0.254)
T
0.087±0.010
(2.200±0.254)
0.078±0.010
(2.000±0.254)
0.055±0.010
(1.400±0.254)
0.043±0.010
(1.100±0.254)
0.033±0.010
(0.850±0.254)
0.087±0.010
(2.200±0.254)
0.078±0.010
(2.000±0.254)
0.055±0.010
(1.400±0.254)
0.043±0.010
(1.100±0.254)
0.033±0.010
(0.850±0.254)
0.087±0.010
(2.200±0.254)
0.078±0.010
(2.000±0.254)
0.055±0.010
(1.400±0.254)
0.043±0.010
(1.100±0.254)
t
0.5~1.0
1.5
1
2.0
2.5~100.0
101.0~680.0
0.5~1.0
1.5
CUM2512
2
2.0
2.5~100.0
101.0~450.0
0.5~1.0
1.5
3
2.0
2.5~50.0
51.0~100.0
0.250±0.010
(6.350±0.254)
0.120±0.010
(3.050±0.254)
0.022±0.010
(0.560±0.254)
0.008~0.039
(0.200~1.000)
0.019±0.010
(0.490±0.254)
0.026±0.010
(0.670±0.254)
0.022±0.010
(0.560±0.254)
0.008~0.039
(0.200~1.000)
0.024±0.010
(0.610±0.254)
0.026±0.010
(0.670±0.254)
0.008~0.039
(0.200~1.000)
0.029±0.010
(0.740±0.254)
9.
Marking Format(蓋印型式):
9.1 All the other products marking are 4 digits.
(所有的產品字碼均為 4
碼).
9.2
R”
designates the decimal location in ohms,, e.g. 1mΩ the product marking is R001, 25mΩ the product
marking is R025 and 100mΩ the product marking is R100.
(當阻值小於 1
歐姆時以”R”來表示之; 例如
1mΩ
其蓋印字碼為”R001”;
10mΩ
其蓋印字碼為”R010；25mΩ 其蓋
印字碼為”R025”；100mΩ 其蓋印字碼為”R100”).
9.3 “m” designates the decimal location in milli-ohms, e.g. 25.5mΩ the product marking is 25m5.
(當阻值有毫歐姆時以”m”來表示之；
例如;
25.5mΩ
其蓋印字碼為”25m5”).
9.4 The criteria to distinguishing the mark on the surface of products are that characters can be identified.
(產品表面字碼以可識別為主)
Fort Technology Co., Ltd
www.fort-tec.com ,
Document #: FT-SPEC-TPE-2512U-ALL-V5, Revision 2017/04/17
Page 4 of 6
High Power Current Sensing Resistor for CUM 2512
10. Recommended Land Pattern (建議印刷電路板上銲墊的尺寸):
a
i
a
b
Maximum Power
Type
型別
Rating (Watts)
最大額定功率(瓦特)
Resistance
Range (mΩ)
(電阻值範圍)
0.5 ~1.5
CUM2512
1.0 & 2.0 & 3.0
2.0 ~ 3.5
3.6 ~ 680.0
11. Product Reliability Performance(產品可靠度特性):
Test Items
Conditions of Test
(R2-R1)
Temperature Coefficient Ratio
(T.C.R.)
●
T.C.R. (ppm/℃) = ----------------------- X 10
6
Dimensions - in inches (millimeters)
尺寸-英吋(公釐)
a
0.120 (3.05)
0.083 (2.11)
0.075 (1.90)
b
0.145 (3.68)
0.145 (3.68)
0.145 (3.68)
i
0.050 (1.27)
0.125 (3.18)
0.138 (3.50)
Test Limits
R1 (T2-T1)
●
●
R1: resistance at room temperature (T1)
R2: resistance at 150°C (T2)
-55°C to +150°C, 1,000cycles, 15min at each extreme
The number of rated power are as follows:
●
CUM2512-1.0W: 5 times of rated power
CUM2512-2.0W: 5 times of rated power
CUM2512-3.0W: 5 times of rated power
≤±50
ppm/˚C
Temperature Cycling
ΔR/R1≦±
0.5%
Short Time Overload
●
●
●
The others:
ΔR/R1≦±0.5%
Rating power duration: 5secs
Resistance to Solder Heat
High Temperature Exposure
Load at Rated Power
Bias Humidity
Solderability
260±5°C Solder, 10±1secs dwell
1,000hrs at + 170 °C
1,000hrs@70
°C,
1.5hrs “ON”, 0.5hrs “OFF”
1,000hrs@+85°C/85%RH, Bias 1.5hrs “ON”, 0.5hrs “OFF”
245±5°C for 2±0.5secs
ΔR/R1≦±
0.5%
●
The others:
ΔR/R1≦±1.0%
●
The others:
ΔR/R1≦±1.0%
ΔR/R1≦±
0.5%
>95% coverage
Remark: R = (resistance after stress
–
resistance before stress); R1 means resistance before stress.
Fort Technology Co., Ltd
www.fort-tec.com ,
Document #: FT-SPEC-TPE-2512U-ALL-V5, Revision 2017/04/17
Page 5 of 6
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