June 16, 2020
Preliminary
SSWA – Superior Anti-Surge Wire Wound Axial Resistors
Features
Applications
● Worldwide patent pending
● ECG cables
● Special composite wire-wound structure enhances anti-surge capability
● Conforms to ANSI/AAMI EC53/ IEC 60601-2-27:2011(R)2016
● Best quality and reliability for electrocardiogram (ECG) monitor (3/5/10 leads)
applications
● Flameproof multi-layer coating equivalent to UL 94 V-0
● RoHS/ REACH compliant
CONSTRUCTION
No
Parts
Materials
1
Conductive Ceramic Rod
With Conductive Film or Rod
2
Insulation Layer
Flame proof
3
Resistive Wire
Nickel Chromium alloy
4
Cap
Base Metal：Fe Plating：Sn / Cu
5
Coating
Flame proof
6
Lead Wire
Tin Clad Copper Wire
DIMENSIONS
Type
Body Length
(L , mm)
Body Diameter
(D , mm)
Lead Wire
Length (H , mm)
Lead Wire
Diameter (d , mm)
SSWA03
15.5 ± 1.0
5.0 + 0.4/ -0.6
28 ± 3.0
0.7 ± 0.03
GENERAL SPECIFICATIONS
Type
Power Rating
( at 70℃)
Max. Working
Voltage
Resistance
Resistance
Tolerance
Available
Resistance
Values
SSWA03
3W
54.77V
1KΩ
±5%, ±10%
E-24, E-12
2
1
3
5
4
6
June 16, 2020
POWER DERATING CURVE
TENCHNICAL SPECIFICATIONS
Characteristics
Limits
Dielectric Withstanding Voltage, VAC or DC
300
Temperature Coefficient, PPM / ℃
+100~ -1900
Operating Temperature Range, ℃
-55 ~ +200
Insulation Resistance, MΩ
10
4
PART NUMBER
Example：SSWA03K1K00TKZTB500
SSWA03
J
1K00
TKZ
TB500
Type
Tolerance
Resistance
TCR
Packaging
J (5%)
K (10%)
1KΩ
4-character code
containing -
3 significant digits
1 letter multiplier
MULTIPLIER
R = 1
K = 10
3
M = 10
6
G = 10
9
3-character code
TKZ=Default
Product
Temperature
Coefficient.
5-character code
TB = Tape Box
(pieces per Box)
500 = 500
* For the availabilities of non-default temperature coefficient, please check with us.