★ Resistors ; comparison table

★ Advantages of SSWA (Superior Anti-Surge Wire Wound Axial Resistor)

. Special composite wire-wound structure enhances anti-surge capability. “Patent pending”

. Rated to withstand the defibrillation pulse tests described in AAMI EC53/IEC 60601-2-27

. Rated to withstand the ESD pulse tests described in IEC 61000-4-2

(including both the 8KV contact discharge and the 15KV air discharge)

. Best quality and reliability for electrocardiogram(ECG) monitor (3/5/10 leads) applications.

. Reduced total BOM cost with stable production lead time.

SSWA – Superior Anti-Surge

Wire Wound Axial Resistors

Brand FIRSTOHM KXX

Construction

Composite wire-wound ceramic resistors

P/N

SSWA01T HXX1 / PXX1

Power Rating

1W 1W

Resistance Value

1K 1K

Body Length

15.5±1.0(mm) 16.0±2.0(mm)

Body Diameter

5.5±0.5(mm) 4.50±1.0(mm)

Tolerance

5% 10%

T.C.R (

PPM/

℃

)

200 -900 ~ -1900

Operating TEMP.

-55

℃

~ +200

℃

-40

��

~ +200

℃

Derating Curve

+70

℃

+40

℃

Cost

Low High

SSWA

(Superior Anti-Surge Wire

Wound Axial Resistor)

5KV differential mode

ECG cable Best Solution

ECG cable acts as a necessary route between human body and ECG machine,

there are two reasons to add a resistor inside the wire of ECG cable :

1. To avoid EMI/RFI between each party. 2. For safety to limit any current to

the patient in case of some sort of equipment failure.

The protective component(SSWA) must have sufficient capability to stand

energy of defibrillator pulses but also to stand possible ESD pulses without

specification degradation while maintaining high reliability during the

lifetime of the components.