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Product Detailed Parameters
- Description：BRIDGE RECT 1PHASE 400V 8A GBU
- Series：-
- Mfr：Taiwan Semiconductor Corporation
- Package：Tube
- Diode Type：Single Phase
- Technology：Standard
- Voltage - Peak Reverse (Max)：400 V
- Current - Average Rectified (Io)：8:00 AM
- Voltage - Forward (Vf) (Max) @ If：1.1 V @ 8 A
- Current - Reverse Leakage @ Vr：5 µA @ 400 V
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：4-ESIP, GBU
- Supplier Device Package：GBU
- Grade：-
- Qualification：-
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Overview
The GBU804-K is an 8A single-phase bridge rectifier from the Taiwan Semiconductor GBU804-K to GBU807-K series. It features a 400V repetitive peak reverse voltage (VRRM) and a total RMS reverse voltage of 280V. The device supports a maximum forward current of 8A and a surge peak forward current of 200A for an 8.3ms half-sine wave. Electrical characteristics include a typical forward voltage of 1.0V at 4A and 1.1V at 8A, with a maximum reverse current of 5µA at 25°C. Operating junction temperature ranges from -55°C to +150°C.
Feature Summary
- High case dielectric strength rated at 1500VRMS
- Typical leakage current less than 0.1μA
- UL recognized component under file number E-326243
- RoHS compliant and halogen-free construction
Applications
- Switching mode power supplies (SMPS)
- Power adapters
- Lighting applications
Procurement Notes
Verify the specific part marking code on the physical component matches the GBU804 designation to confirm the 400V rating. Ensure the ordering suffix includes the required packaging format, as standard tubes contain 20 units per tube. Confirm RoHS compliance status if environmental regulations apply to the final assembly.
Selection Notes
Select this component when an 8A continuous forward current and 400V blocking capability are required in a GBU package. Consider thermal resistance values of 21°C/W junction-to-ambient for heat dissipation planning. Evaluate the 200A surge current rating against potential inrush conditions in the target circuit design.
Part Context
This component belongs to the GBU804-K through GBU807-K product family manufactured by Taiwan Semiconductor. The series covers voltage ratings from 400V to 1000V while maintaining consistent 8A current handling capabilities across all variants within the same mechanical GBU housing.
Replacement Considerations
Cross-reference other GBU-4 packaged bridge rectifiers with identical 8A and 400V specifications. Verify that substitute components meet the same UL recognition requirements and maintain comparable thermal performance metrics for direct board replacement.
