Product is End of Life May-2016 and Replaced by WSHM2818 WSH2818 www.vishay.com Vishay Dale Power Metal Strip® Resistors, High Power (5 W), Low Value (down to 0.001 ), Surface Mount FEATURES • Improved thermal management incorporated into design • Ideal for all types of current sensing, voltage division and pulse applications including switching and linear power supplies, instruments, power amplifier • Proprietary processing technique produces extremely low resistance values • All welded construction • Very low inductance (< 5 nH) • Excellent frequency response to 50 MHz • Solid metal nickel-chrome or manganese- copper alloy resistive element with low TCR (< 20 ppm/°C) • Low thermal EMF (< 3 μV/°C) Product Termination Notice: PCN-DR-028-2015-Rev-0 • AEC-Q200 qualified (1) For documentation go to: www.vishay.com/quality/pcn-search/. • PATENT(S): www.vishay.com/patents Enter search for resistors, Vishay Dale, and product termination. • Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 Technical Note: WSHM / WSH Side by Side Comparison for a Drop-In Replacement Part: www.vishay.com/doc?30305. Note (1)Flame retardance test may not be applicable to some resistor technologies STANDARD ELECTRICAL SPECIFICATIONS POWER RATING RESISTANCE WEIGHT TOLERANCE GLOBAL MODEL SIZE P VALUE RANGE (typical) 70 °C ± % W  g/1000 pieces WSH2818 2818 5 (1) 1.0 0.001 to 0.1 126 Note (1) The WSH2818 is rated at 5 W with maximum surface temperature of 200 °C TECHNICAL SPECIFICATIONS PARAMETER UNIT RESISTOR CHARACTERISTICS ± 200 for 1 m to 5.99 m Temperature coefficient ppm/°C ± 75 for 6 m to 100 m Inductance nH < 5 Operating temperature range °C -65 to +170 Maximum continuous current A (P/R)1/2 GLOBAL PART NUMBER INFORMATION Global Part Numbering example: WSH2818R1000FEA W S H 2 8 1 8 R 1 0 0 0 F E A GLOBAL MODEL RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE SPECIAL WSH2818 L = m* F = ± 1.0 % EA = lead (Pb)-free, tape/reel (dash number) R = Decimal J = ± 5.0 % EK = lead (Pb)-free, bulk (up to 2 digits) 4L000 = 0.004  from 1 to 99 R0100 = 0.01  as applicable * Use “L” for resistance values < 0.01  PATENT(S): www.vishay.com/patents This Vishay product is protected by one or more United States and international patents. Revision: 21-Jun-2018 1 Document Number: 30120 For technical questions, contact: ww2bresistors@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

Product is End of Life May-2016 and Replaced by WSHM2818 WSH2818 www.vishay.com Vishay Dale DIMENSIONS in inches (millimeters) L H a T b l a W RESISTANCE DIMENSIONS SOLDER PAD DIMENSIONS MODEL RANGE  L W H T a b l 0.032 ± 0.010 0.006 to 0.1 0.280 ± 0.010 0.180 ± 0.010 (0.813 ± 0.25) 0.125 ± 0.010 0.138 0.200 0.024 WSH2818 (7.1 ± 0.25) (4.6 ± 0.25) 0.045 ± 0.010 (3.18 ± 0.25) (3.5) (5.1) (0.61) 0.001 to 0.0059 (1.143 ± 0.25) DERATING % 120 n er i 100 w o P d 80 e at R 60 40 20 0 - 65 - 50 - 25 0 25 50 75 100 125 150 170 Ambient Temperature in °C 70 PERFORMANCE TEST CONDITIONS OF TEST TEST LIMITS Thermal shock -55 °C to +150 °C, 1000 cycles, 15 min at each extreme ± 0.5 % R Short time overload 4x rated power for 5 s ± 1.0 % R Low temperature operation -65 °C for 45 min ± 0.5 % R High temperature exposure 1000 h at +170 °C ± 1.0 % R Bias humidity +85 °C, 85 % RH, 10 % bias, 1000 h ± 0.5 % R Mechanical shock 100 g’s for 6 ms, 5 pulses ± 0.5 % R Vibration Frequency varied 10 Hz to 2000 Hz in 1 min, 3 directions, 12 h ± 0.5 % R Load life 1000 h at 70 °C, 1.5 h “ON”, 0.5 h “OFF” ± 1.0 % R Resistance to solder heat +260 °C solder, 10 s to 12 s dwell, 25 mm/s emergence ± 0.5 % R Moisture resistance MIL-STD-202, method 106, 0 % power, 7b not required ± 0.5 % R PACKAGING REEL MODEL TAPE WIDTH DIAMETER PIECES/REEL CODE WSH2818 16 mm/embossed plastic 330 mm/13" 3500 EA Note • Embossed Carrier Tape per EIA-481 Revision: 21-Jun-2018 2 Document Number: 30120 For technical questions, contact: ww2bresistors@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROV E RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. 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 in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose o r the continuing production of any product. To the maximum extent permitted by applicable law, Vishay 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. Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements about the suitability of products for a particular application. 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. Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein. Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustainin g applications or for any other application in which the failure of the Vishay product could result in personal injury or death. Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk . Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this documen t or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners. © 2019 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED Revision: 01-Jan-2019 1 Document Number: 91000