WSR2RJBA4 [VISHAY]

Power Metal StripÂ® Resistors, Low Value (down to 0.001 Î©), Surface Mount; 功率金属StripÂ®电阻，低的值（低至0.001 I© ），表面贴装


型号：	WSR2RJBA4
厂家：	VISHAY
描述：	Power Metal StripÂ® Resistors, Low Value (down to 0.001 Î©), Surface Mount 功率金属StripÂ®电阻，低的值（低至0.001 I© ），表面贴装
文件：	总3页 (文件大小：125K)
中文：	中文翻译
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WSR

Vishay Dale

Power Metal Strip^®Resistors,

Low Value (down to 0.001 Ω), Surface Mount

FEATURES

• Molded high temperature encapsulation

• Ideal for all types of current sensing, voltage

division and pulse applications including

switching and linear power supplies, instruments,

power amplifiers

• Proprietary processing technique produces

extremely low resistance values (down to

0.001 Ω)

• All welded construction

• Solid metal Nickel-Chrome or Manganese-Copper alloy

resistive element with low TCR (< 20 ppm/°C)

• Solderable terminations

• Very low inductance 0.5 nH to 5 nH

• Excellent frequency response to 50 MHz

• Low thermal EMF (< 3 µV/°C)

• Compliant to RoHS directive 2002/95/EC

STANDARD ELECTRICAL SPECIFICATIONS

RESISTANCE RANGE

POWER RATING

GLOBAL

MODEL

P_{70 °C}

SIZE

0.ꢀ ꢁ

1.0 ꢁ

WSR2

WSR3

4527

2.0

3.0 ⁽¹⁾

0.01 to 1.0

0.01 to 0.2

0.001 to 1.0

0.001 to 0.2

Note

⁽¹⁾The WSR3 requires a minimum of 1050 sq. mil. circuit traces connecting to the recommended solder pad

• Part Marking: DALE, Model, Value, Tolerance, Date Code

TECHNICAL SPECIFICATIONS

PARAMETER

UNIT

WSR2 & WSR3

0.005 Ω to 0.0099 Ω = 110

0.010 Ω to 1.0 Ω = 75

Temperature Coefficient

ppm/°C

Dielectric Withstanding Voltage

Insulation Resistance

V_AC

> 500

> 10⁹

Operating Temperature Range

Maximum Working Voltage

Weight/1000 pieces (typical)

°C

- 65 to + 275

(P x R)^1/2

440

GLOBAL PART NUMBER INFORMATION

NEW GLOBAL PART NUMBERING: WSR2ꢀL000FTA (PREFERRED PART NUMBERING FORMAT)

ꢀ

GLOBAL MODEL

WSR2

VALUE

L = mΩ*

R = Decimal

ꢀL000 = 0.005 Ω

R0100 = 0.01 Ω

TOLERANCE

D = 0.5 %

F = 1.0 %

J = 5.0 %

PACKAGING

EA = Lead (Pb)-free, tape/reel

EK = Lead (Pb)-free, bulk

TA = Tin/lead, tape/reel (R86)

BA = Tin/Lead, bulk (B43)

SPECIAL

(Dash Number)

(Up to 2 digits)

From 1 to 99 as

applicable

WSR3

* Use “L” for resistance

values < 0.01 Ω

HISTORICAL PART NUMBER EXAMPLE: WSR2 0.00ꢀ Ω 1 % R86 (WILL CONTINUE TO BE ACCEPTED)

WSR2

0.00ꢀ Ω

1 %

R86

HISTORICAL MODEL

RESISTANCE VALUE

TOLERANCE CODE

PACKAGING

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

** Please see document “Vishay Material Category Policy”: www.vishay.com/doc?99902

www.vishay.com

For technical questions, contact: ww2bresistors@vishay.com

Document Number: 30101

Revision: 01-Jul-09

WSR

Vishay Dale

Power Metal Strip^®Resistors,

Low Value (down to 0.001 Ω), Surface Mount

DIMENSIONS

DIMENSIONS in inches [millimeters]

MODEL

W₁

WSR2

WSR3

0.455 0.032 0.095 0.005 0.100 0.010 0.275 0.005 0.215 0.005

[11.56 0.813] [2.41 0.127] [2.54 0.254] [6.98 0.127] [5.46 0.127]

SOLDER PAD DIMENSIONS in inches [millimeters]

MODEL

WSR2

WSR3

0.155

[3.94]

0.230

[5.84]

0.205

[5.21]

120

100

- 65

- 25

125

175

225

275

Ambient Temperature °C

Derating

PERFORMANCE

TEST LIMITS

TEST

CONDITIONS OF TEST

WSR2

WSR3

Thermal Shock

- 55 °C to + 150 °C, 1000 cycles, 15 min at each extreme

(0.5 % + 0.0005

Ω)

ΔR

(0.5 % + 0.0005

(2.0 % + 0.0005

(0.5 % + 0.0005

(1.0 % + 0.0005

Ω)

ΔR

WSR2: 5 x rated power for 5 s

WSR3: 4 x rated power for 5 s

Short Time Overload

(0.5 % + 0.0005

(1.0 % + 0.0005

Low Temperature Storage - 65 °C for 24 h

High Temperature

1000 h at + 275 °C

Exposure

Bias Humidity

Mechanical Shock

Vibration

+ 85 °C, 85 % RH, 10 % Bias, 1000 h

100 g’s for 6 ms, 5 pulses

(0.5 % + 0.0005

Ω)

ΔR

(0.5 % + 0.0005

(2.0 % + 0.0005

Ω)

ΔR

Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h (0.5 % + 0.0005

Load Life

1000 h at rated power, + 70 °C, 1.5 h “ON”, 0.5 h “OFF”

(1.0 % + 0.0005

Resistance to Solder

Heat

+ 260 °C Solder, 10 s to 12 s dwell, 25 mm/s emergence

(0.5 % + 0.0005

)

(0.5 % + 0.0005

)

Moisture Resistance

MIL-STD-202 Method 106, 0 % power, 7a and 7b not required (0.5 % + 0.0005

PACKAGING

MODEL

REEL

TAPE WIDTH

DIAMETER

PIECES/REEL

CODE

WSR2 and WSR3

24 mm/Embossed Plastic

330 mm/13"

1500

Note

• Embossed Carrier Tape per EIA-481-2

Document Number: 30101

Revision: 01-Jul-09

For technical questions, contact: ww2bresistors@vishay.com

www.vishay.com

Legal Disclaimer Notice

Vishay

Disclaimer

All product specifications and data are subject to change without notice.

Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf

(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein

or in any other disclosure relating to any product.

Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any

information provided herein to the maximum extent permitted by law. The product specifications do not expand or

otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed

therein, which apply to these products.

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

document or by any conduct of Vishay.

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

otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such

applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting

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products designed for such applications.

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

Document Number: 91000

Revision: 18-Jul-08

www.vishay.com