KBL401

Overview

The EIC SEMICONDUCTOR INC. KBL401 is a glass passivated bridge rectifier designed for general-purpose applications. It features a maximum average forward current of 4.0 A at 40°C and a maximum recurrent peak reverse voltage of 100 V. The device supports a peak forward surge current of 120 A under single half-sine wave conditions. Electrical characteristics include a maximum forward voltage drop of 1.05 V at 2 A and a maximum DC reverse current of 10 µA at 25°C. The component operates within a junction temperature range of -55 to +150°C and utilizes a molded plastic case with UL94V-0 rated epoxy.

Feature Summary

• Glass passivated chip construction ensures high reliability and low reverse leakage current.
• High current and surge current capabilities suitable for demanding power conversion tasks.
• Low forward voltage drop improves overall circuit efficiency.
• Molded plastic case with flame retardant epoxy ideal for printed circuit board mounting.

Applications

• General-purpose AC to DC rectification in power supplies.
• Bridge rectifier circuits for consumer electronics.
• Adapters and chargers requiring compact through-hole components.

Procurement Notes

Verify the manufacturer marking on the component body matches EIC SEMICONDUCTOR INC. specifications. Confirm the part number suffix corresponds to the 100 V rating variant. Check for RoHS compliance documentation if environmental regulations apply to the assembly process. Ensure storage conditions remain within the specified temperature range to maintain material integrity before soldering.

Selection Notes

Select the KBL401 when a 100 V peak reverse voltage rating is required alongside a 4.0 A continuous current capacity. Consider this component for designs needing a robust 120 A surge rating. Evaluate thermal resistance requirements based on the specific PCB copper area available for heat dissipation. Compare forward voltage characteristics against system efficiency targets at the expected operating load current.

Part Context

The KBL401 belongs to the KBL series of single-phase bridge rectifiers manufactured by EIC SEMICONDUCTOR INC. This series includes variants ranging from 50 V to 1000 V reverse voltage ratings, all sharing the same 4.0 A current capability and KBL package outline. The series utilizes glass passivation technology to enhance durability and electrical stability across the operating temperature range.

Replacement Considerations

Compatible substitutes include the KBL401 from other manufacturers such as Panjit or Suntan, provided they meet the 100 V PRV and 4.0 A IF(AV) specifications. Verify that replacement parts utilize the identical KBL SIP-4 package dimensions to ensure mechanical fit. Confirm equivalent thermal resistance and surge current ratings to maintain circuit performance.