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Product Detailed Parameters
- Description：BRIDGE RECT 1PHASE 400V 4A KBJ
- Series：-
- Mfr：Diodes Incorporated
- Package：Tube
- Diode Type：Single Phase
- Technology：Standard
- Voltage - Peak Reverse (Max)：400 V
- Current - Average Rectified (Io)：4:00 AM
- Voltage - Forward (Vf) (Max) @ If：1 V @ 2 A
- Current - Reverse Leakage @ Vr：5 µA @ 400 V
- Operating Temperature：-65°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：4-SIP, KBJ
- Supplier Device Package：KBJ
- Grade：-
- Qualification：-
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Overview
The KBJ404G is a single-phase standard recovery bridge rectifier manufactured by Diodes Incorporated. It provides an average rectified output current of 4.0 A and supports a maximum repetitive peak reverse voltage of 400 V. The device features a maximum forward voltage of 1.0 V at 2.0 A and a maximum reverse leakage current of 5.0 µA at rated temperature. It withstands a peak forward surge current of 120 A for an 8.3 ms half-sine wave. Operating temperatures range from -55 °C to +150 °C, with a typical thermal resistance of 5.5 °C/W.
Feature Summary
- Glass passivated die construction ensures high reliability and low reverse leakage current.
- High case dielectric strength of 1500 VRMS provides robust insulation.
- Surge overload rating up to 120 A peak handles transient currents effectively.
- Molded plastic package meets UL flammability classification 94V-0.
Applications
- Printed circuit board applications
- General purpose AC to DC conversion
- Power supply circuits
Procurement Notes
Verify the ordering part number matches the required voltage rating and package type. Confirm RoHS compliance status and lead-free finish specifications against project requirements. Check the manufacturer's documentation for specific packaging quantities and carrier types before placing orders.
Selection Notes
Select this component when a 400 V blocking capability and 4.0 A continuous current are required in a through-hole KBJ package. Ensure the application operates within the specified junction temperature range of -55 °C to +150 °C. Verify that the surge current demands do not exceed the 120 A limit for standard half-sine wave pulses.
Part Context
This component belongs to the KBJ4005G through KBJ410G series of 4.0 A bridge rectifiers. The series offers various voltage ratings from 50 V to 1000 V while maintaining consistent mechanical dimensions and electrical characteristics such as forward voltage and surge current capacity across all variants.
Replacement Considerations
Other manufacturers produce components with the KBJ package form factor and similar electrical ratings. Verify pinout compatibility, thermal resistance values, and mounting torque specifications when substituting with parts from different suppliers.
FAQ
What is the maximum RMS voltage for the KBJ404G?
The maximum RMS voltage for the KBJ404G is 280 V.
Is the KBJ404G compliant with RoHS directives?
Yes, the KBJ404G is lead-free and compliant with EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2), and 2015/863/EU (RoHS 3).
What is the typical junction capacitance of the KBJ404G?
The typical junction capacitance is 40 pF, measured at 1.0 MHz with an applied reverse voltage of 4.0 V DC.
