The HTHA series Bulk Metal Z1-Foil hybrid chip resistors perform in high-temperature applications to +240°C and are designed for hybrid circuits with aluminum wire bonding technology. Specs include a TCR of ±1 ppm/°C from -55°C to +125°C and ±2.5 ppm/°C from -55°C to +220°C, +25°C reference, a load-life stability to ±0.05% at +220°C for 2,000 hours at working power, long-term stability to ±0.05% at +240°C for 2,000 hours (no power), and tolerances to ±0.02%. Additionally, the components are capable of withstanding electrostatic discharges to at least 25 kV without degradation. Pricing starts at $6.80. VISHAY PRECISION GROUP, Malvern, PA. (484) 321-5300.