Introduction:
SZA Series is useful as a dummy component in circuits and can also be used as a jumper resistor. It can be universally used in any electronic circuitry.
Features:
- Ultra low resistance
- Can take up high currents
- Very less heat dissipation
General Specifications:
| TEST | LIMITS |
| Resistance | < 0.005 Ohm |
| Maximum Current | 5 Amps |
| Insulation Resistance | ³2 M Ohm at 500 V DC. |
| Temperature Coefficient | ±650 PPM/°C at -30 to 155°C |
| Solvent Test | Printing should remain legible Using TrichloroEthane, IsoPropyl Alcohol |
| Terminal robustness |
Tensile : 10N Dur. : 10 seconds Bending : 180°, 3 Bends, Torsion : 3 Rotation of 360° each |
| Operating Temperature | -55°C to +155°C |
| Maximum Working Voltage | 25 mV DC |
|
Maximum Overload Voltage |
100 mV DC |
| Dielectric withstanding Voltage | 1 KV Duration - 1 minute ± 0.5% |
| Temperature Cycling | 5 Cycles of -65°C, 25°C, 150°C, 25°C ± 0.5 |
| Short Term Overload | 62.5 mV DC Duration - 5 seconds ± 0.5% |
| Load Life | More than 1000 Hrs. of endurance test method. |
| Damp Heat ( Steady State) | 40°C, 95% relative humidity Duration - 56 days ± 1% |
| Shock | 1 Km/S² |
| Vibration | ( High Frequency) 10 to 2000 Hz : 200m/s² |
| Solder ability | Dip Method, solder Bath at : 230°C ± 5°C - 5 seconds |
Mechanical Data:
Table 1. Mechanical data
|
PRODUCT |
L |
D |
d |
|
SSA2.5 |
16.0 ± 1.5 |
5.5 ± 0.5 |
0.80 ± 0.03 |
Construction:
SZA: The resistor element is a resistive wire, which is wound, in a single layer, on a ceramic rod. Metal caps are pressed over the ends of the rod. The ends of the resistive wire and the leads are connected to the caps by welding. Tinned copper clad iron leads with poor heat conductivity are employed permitting the use of relatively short leads to obtain stable mounting without overheating. The resistor is coated with green silicon cement which is non-flammable, will not drip even at high overloads and is resistant to most commonly used cleaning solvents
Electrical Characteristics
DERATING: The power that the resistor can dissipate depends on the operating temperature.
Maximum dissipation (Pmax) in percentage of rated as a function of ambient temperature (Tamb)
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