Zero Ohm Jumper Overview Thick Film
There are two main reasons for designers to use Zero-Ohm resistors (Jumper). The first is to avoid using an additional layer when two traces have to cross on the same side of the PCB, the second is to make different circuit configurations using the same PCB layout. The advantage of SMD Jumper is, that they can be placed on the PCB using the same pattern and automated equipment used for standard SMD devices.
Product Features:
XR73Z Series – Embedded Jumper
- Thick film jumper for mounting inside the PCB or substrate
- Low profile of 0.14 mm height
- Via connection to copper substrate
- 0201 and 0402 inch sizes
- 50 mΩ max. resistance value
- Current rating:
- 0201 ≙ 5 A
- 0402 ≙ 1.0 A
To access the product datasheet on the Vishay Website, go to http://www.koaeurope.de/at/koa/pdf/xr73.pdf
High Current Jumper
The News
In high power applications a conventional Zero-Ohm resistor may be not be able to handle the higher currents. The SLZ and TLRZ series from KOA can carry currents up to 44 A. Additionally, these two series can be used for large current patterns with low impedance requirements.
Product Features:
SLZ Series – Molded Jumper
- 44 A rated current in 2512 inch size
- 5 mΩ max. resistance value
- +180 °C max. operating temperature
- Stress tolerant construction
- Suitable for reflow, wave and iron soldering
- AEC-Q200 qualified
Product benefit:
During heat cycling the stress in the solder junctions can be very high due to different thermal expansion coefficients of the PCB and the substrate. The SLZ jumper has flexible metal plate electrodes which reduce this stress.
To access the product datasheet on the Vishay Website, go to http://www.koaeurope.de/at/koa/pdf/sl.pdf
Product Features:
TLRZ Series – Metal Plate Jumper
- 40 A max. rated current
- 0603, 0805, 1206 inch sizes
- +105 °C rated terminal part temperature
- 2 mΩ max. resistance value
- -55 °C to +155 °C
- Low profile
- AEC-Q200 qualified
Product benefit:
Metal Plate Jumpers offer superior corrosion and heat resistance to thick film resistors. They also allow high currents in very small sizes (e.g. 0603=26 A, 0805=31.6 A; 1206=40 A). The TLRZ jumpers are only suitable for reflow soldering.
To access the product datasheet on the Vishay Website, go to http://www.koaeurope.de/at/koa/pdf/tlrz.pdf
Market Applications:
- Analysis in the development phase
- Bypass unnecessary functional circuits when the board becomes standardized
