The HR series from Welwyn are thick film chip resistors. These chip resistors have high resistance value ranging from 10Mohm to 50Gohm and low power dissipation.
Available in 0503, 0805, 1005 and 1206 case sizes
Terminations available for wire bonding or soldering
Low voltage coefficient of resistance
Ambient temperature range from -55°C to +155°C
±5%, ±10%, ±25% and ±50% tolerance based on resistance value and case size