CSM2512 [VISHAY]

Bulk MetalÂ® Technology High Precision, Current Sensing, Power Surface Mount, Metal Strip Resistor with Resistance Value from 1 mÎ©, Rated Power up to 3 W and TCR to 0 Â± 15 ppm/Â°C Maximum; 散装MetalÂ®技术精度高，电流检测，电源表面贴装，金属条电阻与电阻值从1英里© ，额定功率高达3 W和TCR为0 ± 15 PPM / A °C最大


型号：	CSM2512
厂家：	VISHAY
描述：	Bulk MetalÂ® Technology High Precision, Current Sensing, Power Surface Mount, Metal Strip Resistor with Resistance Value from 1 mÎ©, Rated Power up to 3 W and TCR to 0 Â± 15 ppm/Â°C Maximum 散装MetalÂ®技术精度高，电流检测，电源表面贴装，金属条电阻与电阻值从1英里© ，额定功率高达3 W和TCR为0 ± 15 PPM / A °C最大
文件：	总8页 (文件大小：2261K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

CSM Series

Vishay Foil Resistors

Bulk Metal^®Technology High Precision, Current Sensing, Power

Surface Mount, Metal Strip Resistor with Resistance Value from 1 m

Rated Power up to 3 W and TCR to 0 ± 15 ppm/°C Maximum

FEATURES

Ω,

• Temperature coefficient of resistance:

± 15 ppm/°C max. (- 55 °C to + 125 °C, + 25 °C

ref.); ± 10 ppm/°C max. (- 55 °C to + 125 °C,

+ 25 °C ref.) is available on request (see table 1)

• Power rating: 1 W to 3 W

• Resistance tolerance: ± 0.1 %

• Resistance range: 1 mΩ to 200 mΩ ⁽¹⁾

No minimum order quantity and any value at any

tolerance available within resistance range.

• Vishay Foil resistors are not restricted to standard values,

specific “as required” values can be supplied at no extra

cost or delivery (e.g. 2.3456 mΩ vs. 2 mΩ)

• Load life stability to ± 0.2 % (70 °C, 2000 h at rated power)

• Short time overload: ± 0.1 % typical

Vishay Foil Resistors’ application engineering department is

available to advise and make recommendations.

For non-standard technical requirements and special

applications, please contact foil@vishaypg.com.

• Thermal EMF: 3 µV/°C (DC offset error, significant for low

values)

• Maximum current: up to 54 A

• Proprietary processing techniques produce low TCR, tight

tolerance and improve stability

• Low inductance < 5 nH

• Solderable terminations

• Excellent frequency response to 50 MHz

• Matched sets are available on request

Zin

∞

Four terminal (Kelvin) design: allows for precise and

accurate measurements.

FIGURE 1 - POWER DERATING CURVE

+ 70 °C

• Screening in accordance with EEE-INST002 available

(per MIL-PRF-55342 and MIL-PRF-49465; see 303144

and 303145 datasheets)

100

• Terminal finishes available: lead (Pb)-free, tin/lead alloy

• Prototype quantities available in just 5 working days

or sooner. For more information, please contact

foil@vishaypg.com

• For better performance please contact Application

Engineering

- 65 - 50 - 25

100 125 150 170

Ambient Temperature (°C)

• Compliant to RoHS directive 2002/95/EC

TABLE 1 - SPECIFICATIONS

PARAMETER

CSM2512

CSM3637

Resistance Range

1 mΩ

to 200 mΩ ⁽¹⁾

3 W ( 1 m

to 10 m

Ω)

Power Rating at 70 °C

Maximum Current ⁽³⁾

Tolerance

1 W ⁽²⁾

31 A

2 W (> 10 m

to 200 mΩ)

54 A

± 0.5 % (1 m

to < 3 m

to 200 m

)

± 0.5 % (1 m

± 0.1 % (2 m

to < 2 m

to 200 mΩ)

Ω)

± 0.1 % (3 m

)

Temperature Coefficient

Max. (- 55 °C to + 125 °C,

± 50 ppm/°C (1 m

± 15 ppm/°C (3 m

± 10 ppm/°C (3 m to 10 m

to < 3 m

to 200 m

) is available on request ⁽⁴⁾

)

± 25 ppm/°C (1 m

± 15 ppm/°C (3 m

± 10 ppm/°C (1 m to 10 m

to < 3 m

to 200 m

) is available on request ⁽⁴⁾

Ω)

)

Ω)

+ 25 °C Ref.)

Operating Temperature

Range

- 65 °C to + 170 °C

(P x R)^1/2

Maximum Working Voltage

Weight (Maximum)

0.09 g

0.29 g

Notes

(1)

(2)

(3)

(4)

For CSM2512 up to 500 mΩ please contact application engineering: foil@vishaypg.com

For values above 0.1 Ω derate linearly to 80 % rated power at 0.5 Ω

Maximum current for a given resistance value is calculated using

Please contact application engineering: foil@vishaypg.com

I = P ⁄ R

* Pb containing terminations are not RoHS compliant, exemptions may apply

Document Number: 63089

Revision: 3-May-11

For any questions, contact: foil@vishaypg.com

www.vishayfoilresistors.com

CSM Series

Vishay Foil Resistors

ABOUT CSM (Low Ohm Value 1 mΩ to 200 mΩ)

New high-precision Bulk Metal^®surface-mount Power Metal

Strip^®resistor of 1 mΩ to 200 mΩ that features an improved

load-life stability of ± 0.2 % at + 70 °C for 2000 h at rated

power, an absolute TCR of ± 15 ppm/°C maximum from

- 55 °C to + 125 °C, + 25 °C ref., and a tolerance of ± 0.1 %.

in critical locations can greatly improve circuit performance,

long-term application-related performance, as well as the

designer’s peace-of-mind.

Additionally, the overall system cost is often reduced when a

knowledgeable designer concentrates costs in a few

exceptionally stable components whose proven minimal-

deviation load and environmental stability can often eliminate

the necessity of additional compensating circuitry or

temperature-controlling systems. The higher reliability and

better overall system performances also achieve excellent

product results in the field, enhancing market acceptance

and product reputation.

Typical current sensing resistors offer a load-life stability of

≥ 1 % through a 2000 h workload. The improved resistance

stability of the CSM Series makes it ideal for

tightened-stability voltage division and precision current

sensing applications in switching linear power supplies,

power amplifiers, measurement instrumentation, bridge

networks, and medical and test equipment. In addition, the

CSM Series complies with EEE-INST-002 (MIL-PRF 55342

and MIL-PRF 49465) for military and space applications.

Designers often unnecessarily pay for tighter tolerances than

required simply to accommodate the resistance stability

shifts they know to be imminent in an application due to the

large application-related changes in the components they

selected. Selection of a high-stability component like the

CSM in these applications eliminates the need for shift

allowance due to “planned instability” and allows the use of

looser initial tolerances than would be necessary with

current-sensing resistors based on other technologies.

Traditional Passive current sensors and shunts generate

heat under power, which changes their resistance, and thus

their voltage output. The CSM’s low absolute TCR reduces

errors due to temperature gradients, thus reducing a major

source of uncertainty in current measurement. The CSM

can withstand unconventional environmental conditions,

including the extremely high temperatures and radiation-rich

environments of down-hole oil exploration and well logging,

or the deep-sea underwater repeaters in cross-ocean

communications.

The Key Applications

Applications requiring accuracy and repeatability under

stress conditions such as the following:

The stability of the CSM can be further enhanced by

post-manufacturing operations (PMO), such as temperature

cycling, short-time overload, and accelerated load life which

are uniquely applicable to Bulk Metal^®Foil resistors.

• Switching and linear power supplies

• Precision current-sensing

• Power management systems

• Feedback circuits

The device features a low thermal electromotive force (EMF)

that is critical in many precision applications. The CSM’s

all-welded construction is composed of a Bulk Metal^®

resistive element with welded copper terminations, plated for

soldering. The terminations make true ohmic contact with the

resistive layer along the entire side of the resistive element,

thereby minimizing temperature variations. Also, the resistor

element is designed to uniformly dissipate power without

creating hot spots, and the welded terminations material is

compatible with the element material.

• Power amplifiers

• Measurement instrumentation

• Precision instrumentation amplifiers

• Medical and automatic test equipment

• Satellites and aerospace systems

• Commercial and Military avionics

• Test and measurement equipment

• Electronic scales

These design factors result in a very low thermal-EMF

(3 µV/°C) resistor, because in addition to the low thermal

EMF compatibility of the metals, the uniformity and thermal

efficiency of the design minimizes the temperature

differential across the resistor, thereby assuring low thermal

EMF generation at the leads. This further reduces the

“battery effect” exhibited by most current-sensing or

voltage-reference resistors. Thus, the parasitic voltage

generated at the junction of two dissimilar metals, which is

especially important in low-value current-sensing resistors, is

minimized, while the pure current-to-voltage conversion is

protected from such interference in DC applications.

The stability problems associated with analog circuits are

very pervasive, but knowledgeable selection of a few

high-quality resistors, networks, or trimming potentiometers

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For any questions, contact: foil@vishaypg.com

Document Number: 63089

Revision: 3-May-11

CSM Series

Vishay Foil Resistors

FIGURE 2 - DIMENSIONS AND IMPRINTING in inches (millimeters)

CSM3637 DIMENSIONS

CSM2512 DIMENSIONS

(1)

CSM3637 LAND PATTERN

I₁

CSM2512 LAND PATTERN

E₁

I₁

E₁

E₂

I₂

Kelvin Connection

I₁, I₂- Current

E₁, E₂- Sense

DIMENSIONS - TOLERANCES 0.010 ( 0.254), * 0.015 ( 0.ꢀ31)

MODEL

RESISTANCE RANGE (mΩ)

1 to < 5

5 to < 7

7 to 200

1 to < 2

2 to 200

0.087 (2.210)

CSM2512

0.250 (6.350) 0.125 (3.175) 0.025 (0.635) 0.047 (1.194) 0.030 (0.762)* 0.032 (0.813)*

0.030 (0.762)

0.360 (9.144) 0.370 (9.398) 0.025 (0.635) 0.138 (3.505)

0.061 (1.55)

0.032 (0.813)

CSM3637

0.360 (9.144) 0.370 (9.398) 0.025 (0.635) 0.086 (2.184) 0.061 (1.549) 0.032 (0.813)

LAND PATTERN DIMENSIONS - TOLERANCES 0.00ꢀ ( 0.0ꢁ7)

MODEL

RANGE

0R001 to 0R0049

0.120 (3.05)

0.083 (2.10)

0.065 (1.65)

0.168 (4.27)

0.116 (2.95)

0.145 (3.68)

0.390 (9.91)

0.045 (1.14)

0.066 (1.68)

0.021 (0.53)

0.024 (0.610)

0.055 (1.39)

0.050 (1.27)

0.125 (3.17)

0.160 (4.06)

0.074 (1.88)

0.178 (4.52)

CSM2512 0R005 to 0R0069

0R007 to 0R2

0.055 (1.39)

0R001 to 0R0019

CSM3637

0R002 to 0R2

Note

(1)

White dot indicates top side of part for mounting purposes

Document Number: 63089

Revision: 3-May-11

For any questions, contact: foil@vishaypg.com

www.vishayfoilresistors.com

CSM Series

Vishay Foil Resistors

TABLE 2 - CSM SERIES PERFORMANCE SPECIFICATIONS

CSM2512/CSM3637

MIL-PRF-49465B

TEST

CONDITIONS

ΔR LIMITS

TYPICAL ΔR LIMITS MAXIMUM ΔR LIMITS

- 55 °C to + 150 °C, 1000 cycles,

15 min at each extreme

Thermal Shock

Load Life Stability

Bias Humidity

± (0.5 % + 0.0005R)

± (1.0 % + 0.0005R)

± (0.5 % + 0.0005R)

0.1 %

0.2 %

0.3 %

0.5 %

0.2 %

2000 h, 70 °C at rated power

+ 85 °C, 85 % humidity

10 % bias, 1000 h

0.05 %

5 x rated power for 5 s

(See note ⁽³⁾from table 1)

Short Time Overload

± (0.5 % + 0.0005R)

0.1 %

0.2 %

High Temperature Exposure

Low Temperature Storage

1000 h, 170 °C

- 65 °C for 24 h

± (1.0 % + 0.0005R)

± (0.5 % + 0.0005R)

0.2 %

0.3 %

0.1 %

0.05 %

MIL-STD-202, method 106,

0 power, 7a and 7b not required

Moisture Resistance

± (0.5 % + 0.0005R)

0.02 %

0.05 %

Shock

100 g, 6 ms, 5 pulses

(10 Hz to 2000 Hz) 20 g

10 s to 12 s at + 260 °C

MIL-STD-202

± (0.1 % + 0.0005R)

± (0.25 % + 0.0005R)

95 % coverage

0.02 %

0.05 %

0.1 %

Vibration

Resistance to Soldering Heat

Solderability

FIGURE ꢀ - LOAD LIFE RESULTS OF CSM2512

CSM2512 0R05

Load Life 2000HRS @ 1W @ +70C (15 units)

3000

2500

2000

1500

1000

500

1000

1500

2000

2500

-500

-1000

-1500

-2000

-2500

-3000

Time (Hours)

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Document Number: 63089

Revision: 3-May-11

CSM Series

Vishay Foil Resistors

FIGURE 4 - THERMAL SHOCK RESULTS OF CSMꢀ7ꢀꢁ AND CSM2512

Thermal Shock (-55°C to +150°C) x 1000 Cycles

20 Units Each Type and Value

2000

1500

1000

500

-500

-1000

-1500

-2000

CSM3637 0R1

CSM3637 0R2

CSM2512 0R1

CSM2512 0R2

Type and Value

FIGURE 5 - BIAS HUMIDITY RESULTS OF CSMꢀ7ꢀꢁ AND CSM2512

Bias Humidity 1000 Hrs @ +85°C @ 85% RH

10 Units Each Type and Value

1000

800

600

400

200

-200

-400

-600

-800

-1000

CSM3637 0R2

CSM3637 0R1

CSM2512 0R1

CSM2512 0R2

Type and Value

Document Number: 63089

Revision: 3-May-11

For any questions, contact: foil@vishaypg.com

www.vishayfoilresistors.com

CSM Series

Vishay Foil Resistors

FIGURE 7 - PULSE TEST I

CSM3637 0R005 Test - 10 units

(5 Pulses of 5 sec @ 30 A, 10 sec @ 0 A)

Average Resistance Deviation: 696 ppm

STD = 305 ppm, Measurement Error = 0.0005R

10 sec

5 sec

Time (sec)

FIGURE ꢁ - PULSE TEST II

CSM3637 0R005 Pulse Test - 10 units

(35 Pulses of 0.2 msec @ 20 A, 0.5 msec @ 3 A)

Average Resistance Deviation: 13.3 ppm

STD = 27.3 ppm, Measurement Error = 0.0005R

0.5

0.2

Time (msec)

msec

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Document Number: 63089

Revision: 3-May-11

CSM Series

Vishay Foil Resistors

TABLE ꢀ - GLOBAL PART NUMBER INFORMATION ⁽¹⁾

NEW GLOBAL PART NUMBER: Y14870R12400B0R (preferred part number format)

DENOTES PRECISION

VALUE

CHARACTERISTICS

R = Ω

0 = standard

9 = lead (Pb)-free

1 to 999 = custom

PRODUCT CODE

RESISTANCE TOLERANCE

PACKAGING

1487 = CSM2512

1488 = CSM3637

B = ± 0.1 %

C = ± 0.25 %

D = ± 0.5 %

F = ± 1.0 %

W = waffle

R = tape and reel

FOR EXAMPLE: ABOVE GLOBAL ORDER Y1487 0R12400 B 0 R:

TYPE: CSM2512

VALUE: 124.0 mΩ

ABSOLUTE TOLERANCE: ± 0.1 %

TERMINATION: standard tin/lead

PACKAGING: tape and reel

HISTORICAL PART NUMBER: CSM2512 0R1240 B B T (will continue to be used)

CSM2512

0R1240

MODEL

OHMIC VALUE

ABS. TOLERANCE

TERMINATION

PACKAGING

0.124 Ω

B = ± 0.1 %

C = ± 0.25 %

D = ± 0.5 %

F = ± 1.0 %

S = lead (Pb)-free

B = tin/lead

T = tape and reel

W = waffle pack

Note

(1)

For non-standard requests, please contact application engineering

Document Number: 63089

Revision: 3-May-11

For any questions, contact: foil@vishaypg.com

www.vishayfoilresistors.com

Legal Disclaimer Notice

Vishay Precision Group

Disclaimer

ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.

Vishay Precision Group, Inc., its afﬁliates, agents, and employees, and all persons acting on its or their

behalf (collectively, “Vishay Precision Group”), disclaim any and all liability for any errors, inaccuracies or

incompleteness contained herein or in any other disclosure relating to any product.

The product speciﬁcations do not expand or otherwise modify Vishay Precision Group’s terms and

conditions of purchase, including but not limited to, the warranty expressed therein.

Vishay Precision Group makes no warranty, representation or guarantee other than as set forth in the terms

and conditions of purchase. To the maximum extent permitted by applicable law, Vishay Precision

Group disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and

all liability, including without limitation special, consequential or incidental damages, and (iii) any and

all implied warranties, including warranties of ﬁtness for particular purpose, non-infringement and

merchantability.

Information provided in datasheets and/or speciﬁcations may vary from actual results in different

applications and performance may vary over time. Statements regarding the suitability of products for

certain types of applications are based on Vishay Precision Group’s knowledge of typical requirements that

are often placed on Vishay Precision Group products. It is the customer’s responsibility to validate that a

particular product with the properties described in the product speciﬁcation is suitable for use in a particular

application.

No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or

by any conduct of Vishay Precision Group.

The products shown herein are not designed for use in life-saving or life-sustaining applications unless

otherwise expressly indicated. Customers using or selling Vishay Precision Group products not expressly

indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay

Precision Group for any damages arising or resulting from such use or sale. Please contact authorized

Vishay Precision Group personnel to obtain written terms and conditions regarding products designed for

such applications.

Product names and markings noted herein may be trademarks of their respective owners.

Document No.: 63999

Revision: 27-Apr-2011

www.vishaypg.com

CSM2512 [VISHAY]

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