ISO-9001
Registered
SEMI-PRECISION
POWER WIREWOUND
Alloy resistance wire wound
to specific parameters
including TCR's from ±20 to
+5500 ppm/°C
AS SERIES
•
•
•
•
•
Alpha - Digital
Marking
Silicone conformal
coating
All welded cap
and lead
assembly
1/2 watt to 10 watts
Heat conducting
±5%, ±3%, ±1%, ±.5% tolerance
ceramic substrate
0.1 ohm to 175K ohms
Resistance wire TCR ±20 ppm/°C
AS-SM for surface mount capabilities. See Surface Mount section of this catalog for details.
Manufactured in Barbados
SPECIFICATIONS:
Power Rating 275°C
Equivalent Max. Hot Spot (watts)
MIL-R-26
125°C
25°C
Style
IRC Type
AS-2B
AS-2C
AS-3
AS-5
AS-7
AS-10
Non-Inductive Range
(ohms)
Available Resistance
(ohms)
RW81
RW70U
RW-69V/
RW79U
RW74U/
RW67V
RW68V/
RW78U
Min.
Max.
Min.
Max.
0.5%, 1%
3%, 5%
1
2
LAS-1
LAS-3
AS-1/4
AS-1/2
AS-1
AS-1C
AS-2
Commercial Range
(ohms)
2
3
0.1
0.1
7.5K
18K
0.1
0.2
3.8K
7.5K
1-7.5K
1-18K
0.1-6K
0.1-18K
0.5
0.5
1
1
2
1
1
2
2
3
0.1
0.1
0.1
.05
0.1
1.0K
6.0K
7.5K
2K
20K
*
*
0.1
*
0.5
*
*
3.8K
*
10K
1-1K
1-6K
1-7.5K
1-2K
1-20K
0.1-1K
0.1-6K
0.1-7.5K
.05-2K
0.1-20K
3
2
3
5
4
3
5
7
0.1
0.1
0.1
0.1
24K
18K
30K
60K
0.5
0.2
0.5
0.8
12K
7.5K
15K
30K
1-24K
1-18K
1-30K
1-60K
0.1-24K
0.1-18K
0.1-30K
0.1-60K
7
10
9
14
0.1
0.1
90K
175K
1.0
3.0
45K
50K
1-90K
1-175K
0.1-90K
0.1-175K
Inductance of AS-1/2 is less than 1µH at 1MHz.
To order non-inductive types, add the prefix "N". Example: NAS-1, NAS-2C, etc.
* Typical inductance of AS-1C <5 ohms is < 1µH.
Lower values available upon request.
AS DIMENSIONS (Inches and (mm)):
LAS-1 1.475
LAS-3 1.403
1.50 min.
(38.1)
B
NOTE:
Coating and marking is resistant to normal freon
degreasing. Consult factory for special requirements.
A
D
C
IRC Type
A±0.032
B (max)
C (max)
D (Lead Diameter)
LAS-1
LAS-3
0.348 (8.84)
0.491 (12.47)
0.110 (2.80)
0.149 (3.80)
0.407 (10.34)
0.550 (13.99)
0.020 (0.53)
0.032 (0.81)
AS-1/4
AS-1/2
AS-1
AS-1C
AS-2
AS-2B
AS-2C
AS-3
AS-5
AS-7
AS-10
0.250 (6.4)
0.312 (7.9)
0.367 (9.3)
0.256 (6.5)
0.480 (12.2)
0.540 (13.7)
0.489 (11.0)
0.687 (17.5)
0.875 (22.2)
1.250 (31.8)
1.812 (46.0)
0.094 (2.4)
0.094 (2.4)
0.125 (3.2)
0.115 (2.9)
0.250 (6.3)
0.219 (5.6)
0.157 (4.0)
0.282 (7.2)
0.344 (8.8)
0.344 (8.8)
0.385 (9.8)
0.312 (7.9)
0.375 (9.5)
0.429 (10.9)
0.303 (7.7)
0.600 (15.2)
0.663 (16.6)
0.594 (15.1)
0.812 (20.6)
0.980 (24.9)
1.375 (35.0)
1.937 (49.2)
0.020 (0.5)
0.020 (0.5)
0.020 (0.5) 0.025 (0.64)
0.025 (0.64) 0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.040 (1.0)
0.040 (1.0)
0.040 (1.0)
0.040 (1.0)
*Leads 60/40 are solder plated. AS-1C leads are copper. All others are 40% conductivity copper sheathed steel.
WIRE AND FILM TECHNOLOGIES
736 Greenway Road · PO Box 1860 · Boone, North Carolina 28607-1860 · Tel: 704-264-8861 · Fax: 704-264-8865
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