ABS1-G

Overview

The ABS1-G is a surface-mount glass passivated bridge rectifier manufactured by Comchip Technology. It provides a maximum average forward rectified current of 1.0 A and supports a maximum recurrent peak reverse voltage of 400 V. The device features a peak forward surge current rating of 30 A under JEDEC testing conditions. Electrical characteristics include a maximum forward voltage of 1.1 V at 1.0 A DC and a maximum DC reverse current of 5.0 µA at rated blocking voltage (25°C). Thermal resistance from junction to ambient is 80 °C/W, with an operating temperature range spanning -55°C to +150°C.

Feature Summary

• Glass passivated chip junction for enhanced reliability
• Surface-mount design optimized for printed circuit board space savings
• Lead-tin plated copper terminals for solderability

Applications

• General purpose AC to DC conversion in compact electronics
• Power supply circuits requiring surface-mount bridge rectification
• Adapters and chargers utilizing standard PCB layouts

Procurement Notes

Verify the specific voltage variant required, as the ABS series includes ratings from 50V to 1000V. Confirm package dimensions match the target PCB footprint. Ensure compliance with RoHS directives if applicable to the assembly environment. Check datasheet derating curves for thermal management requirements above 40°C ambient temperature.

Selection Notes

Select the ABS1-G when a 400V reverse voltage rating is necessary for the application's peak inverse voltage. Consider the 1.0 A current limit and 80 °C/W thermal resistance for heat dissipation capabilities. Evaluate the SMD form factor against through-hole alternatives if board space is constrained. Verify that the 30 A surge capability meets transient load requirements.

Part Context

The ABS1-G belongs to the ABS05-G through ABS10-G family of SMD glass passivated bridge rectifiers. This series offers standardized electrical parameters across different voltage ratings while maintaining identical physical dimensions and mounting configurations. The family allows designers to scale voltage ratings without altering the PCB layout or mechanical assembly process.

Replacement Considerations

Compatible substitutes include other SMD bridge rectifiers with matching 1.0 A current, 400V reverse voltage, and similar package dimensions. Verify pinout compatibility and thermal resistance values before substitution.