This document is the datasheet of Vishay Electro-Films BCR series single-value back-contact resistors. This series of resistors is one of the smallest chip resistors available in the market. It has the advantages of small size, low power consumption, and high reliability. It is suitable for hybrid packages with limited space.
The BCR series are thin‑film, back‑contact resistor chips that require only a single wire bond, making them ideal for space‑constrained hybrid packages. They feature a 0.020‑inch square chip size, oxidized silicon substrate, and tantalum‑nitride, self‑passivating resistor material.
The datasheet lists electrical parameters such as a resistance range of 10 Ω to 1 MΩ, operating temperature from –55 °C to +125 °C, and a 250 mW power rating at +70 °C. Mechanical dimensions, recommended attachment methods (eutectic or conductive epoxy), and ordering information are also included.
| Resistance range | 10 Ω to 1 MΩ |
|---|---|
| Chip size | 0.020 x 0.020 in ± 0.002 |
| Operating temperature range | -55 °C to +125 °C |
| Dielectric voltage breakdown | 200 V |
| Moisture resistance | ± 0.5 % max. |
| Temperature coefficient of resistance (TCR) | ± 250 ppm/°C |
The BCR series covers resistances from 10 Ω up to 1 MΩ.
Only one wire bond is required for each BCR chip.
The recommended attachment method is eutectic or conductive epoxy.
They operate from –55 °C to +125 °C.