ALSR, ALVR
www.vishay.com Vishay Huntington
Revision: 18-Feb-16 1Document Number: 31800
For technical questions, contact: ww2aresistors@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
Wirewound Resistors, Commercial Power,
Silicone Coated, Axial Lead
FEATURES
• High temperature coating (> 350 °C)
• All welded construction
• Available with “vitreous like appearance”
coating as ALVR
• Available in non-inductive styles with Ayrton-
Perry winding for lowest reactive components,
special “NI”
• Material categorization:
for definitions of compliance please see
www.vishay.com/doc?99912
Notes
(1) Vishay Huntington ALSR / ALVR models have two power ratings depending on operation temperature and stability requirements. Models
not available for characteristic V are: ALSR01, ALVR01, ALSR03, and ALVR03.
(2) Other tolerances may be available, contact factory.
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
POWER RATING (1)
P25 °C W
CHARACTERISTIC U +250 °C
POWER RATING (1)
P25 °C W
CHARACTERISTIC V +350 °C
RESISTANCE
RANGE
TOLERANCE (2)
%
WEIGHT
(typical)
g
ALSR01 ALSR-1 1 - 0.10 to 6.37K 1, 3, 5, 10 0.27
ALVR01 ALVR-1 1 - 0.10 to 6.37K 1, 3, 5, 10 0.27
ALSR03 ALSR-3 3 - 0.10 to 12K 1, 3, 5, 10 0.68
ALVR03 ALVR-3 3 - 0.10 to 12K 1, 3, 5, 10 0.68
ALSR5A ALSR-5A 4 5 0.10 to 40.3K 1, 3, 5, 10 2.1
ALVR5A ALVR-5A 4 5 0.10 to 40.3K 1, 3, 5, 10 2.1
ALSR05 ALSR-5 5 7 0.10 to 58.5K 1, 3, 5, 10 3.2
ALVR05 ALVR-5 5 7 0.10 to 58.5K 1, 3, 5, 10 3.2
ALSR10 ALSR-10 7 10 0.10 to 92K 1, 3, 5, 10 4.9
ALVR10 ALVR-10 7 10 0.10 to 92K 1, 3, 5, 10 4.9
GLOBAL PART NUMBER INFORMATION
Global Part Numbering example: ALSR0325R00FE12NI
GLOBAL MODEL
(6 digits)
VALUE
(5 digits)
TOLERANCE
(1 digit)
PACKAGING
(3 digits)
SPECIAL
(up to 2 digits)
(see Standard Electrical
Specifications Global
Model column for
options)
R = decimal
K = thousand
1R500 = 1.5
1K500 = 1.5 k
F = ± 1.0 %
H = ± 3.0 %
J = ± 5.0 %
K = ± 10.0 %
E07 = tape / reel
(ALSR5A / ALVR5A, ALSR05 / ALVR05)
E08 = tape / reel (ALSR01 / ALVR01)
E29 = tape / reel (ALSR10 / ALVR10)
E48 = tape / reel (ALSR03 / ALVR03)
E70 = tape / reel, 1K pieces
(smaller than ALSR05 / ALVR05)
E73 = tape / reel, 500 pieces
E12 = bulk, 100 pc boxes
(dash number)
from 1 to 99
as applicable
NI = non-inductive
Historical Part Number example: ALSR-3-25-1 %-NI
ALSR-3 25 1 % NI
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE SPECIAL
LSR0 325R00FE1A 2 N I
ALSR, ALVR
www.vishay.com Vishay Huntington
Revision: 18-Feb-16 2Document Number: 31800
For technical questions, contact: ww2aresistors@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
DIMENSIONS in inches [millimeters]
MATERIAL SPECIFICATIONS
Element: copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
Core: ceramic: steatite or alumina, depending on physical
size
End Caps: stainless steel
Coating: special high temperature silicone or special
formula of “vitreous like appearance” coating on ALVR
Terminals: tinned Copper clad steel
Part Marking: HEI, model, value, tolerance, date code
DERATING
GLOBAL MODEL
DIMENSIONS in inches [millimeters]
L
± 0.032 [0.813]
D
± 0.032 [0.813]
LD
± 0.002 [0.051]
ALSR01 0.406 [10.31] 0.110 [2.79] 0.020 [0.508]
ALVR01 0.406 [10.31] 0.110 [2.79] 0.020 [0.508]
ALSR03 0.500 [12.70] 0.180 [4.57] 0.032 [0.813]
ALVR03 0.500 [12.70] 0.180 [4.57] 0.032 [0.813]
ALSR5A 0.920 [23.37] 0.200 [5.08] 0.032 [0.813]
ALVR5A 0.920 [23.37] 0.200 [5.08] 0.032 [0.813]
ALSR05 0.875 [22.23] 0.312 [7.92] 0.032 [0.813]
ALVR05 0.875 [22.23] 0.312 [7.92] 0.032 [0.813]
ALSR10 1.730 [43.94] 0.312 [7.92] 0.032 [0.813]
ALVR10 1.730 [43.94] 0.312 [7.92] 0.032 [0.813]
1.50 [38.10]
min. LD
LD
RATED POWER IN %
AMBIENT TEMPERATURE IN °C
120
100
80
60
40
20
0
25
- 65
- 50 25010050 300 350
0 200150
Characteristic U
Characteristic V
TECHNICAL SPECIFICATIONS
PARAMETER UNIT RESISTOR CHARACTERISTICS
Temperature Coefficient ppm/°C ± 30 for 10 and above; ± 50 for 1 to 9.9 ; ± 90 for 0.5 to 0.99
Terminal Strength lb 10 minimum
Dielectric Withstanding Voltage VAC 500 for 1 W and 1000 for 3 W and above
Operating Temperature Range °C Characteristic U = -65 to +250, characteristic V = -65 to +350
Maximum Working Voltage V (P x R)1/2
PERFORMANCE
TEST CONDITIONS OF TEST TEST LIMITS
(CHARACTERISTIC V)
Thermal Shock Rated power applied until thermally stable, then a minimum of 15 min at -55 °C ± (2.0 % + 0.05 ) > R
Short Time Overload 5x rated power (3 W and smaller), 10x rated power (4 W and larger) for 5 s ± (2.0 % + 0.05 ) > R
Dielectric Withstanding
Voltage 500 VRMS, 1 min for 1 W and 1000 VRMS, 1 min for 3 W and above ± (0.1 % + 0.05 ) > R
Low Temperature Storage -65 °C for 24 h ± (2.0 % + 0.05 ) > R
High Temperature Exposure 250 h at U = +250 °C, V = +350 °C ± (4.0 % + 0.05 ) > R
Mechanical Shock MIL-STD-202 method 213, 100 g’s for 6 ms, 10 shocks ± (0.2 % + 0.05 ) > R
Vibration Frequency varied 10 Hz to 2000 Hz, 20 g peak, 2 directions 6 h each ± (0.2 % + 0.05 ) > R
Load Life 2000 h at rated power, +25 °C, 1.5 h “ON”, 0.5 h “OFF” ± (3.0 % + 0.05 ) > R
Moisture Resistance MIL-STD-202 method 106, 7b not applicable ± (2.0 % + 0.05 ) > R
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 08-Feb-17 1Document Number: 91000
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
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 or
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-sustaining
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 document
or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
