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Product Detailed Parameters
- Description：BRIDGE RECT 1PHASE 800V 25A KBU
- Series：-
- Mfr：HY Electronic (Cayman) Limited
- Package：Tube
- Diode Type：Single Phase
- Technology：Standard
- Voltage - Peak Reverse (Max)：800 V
- Current - Average Rectified (Io)：25 A
- Voltage - Forward (Vf) (Max) @ If：1.1 V @ 12.5 A
- Current - Reverse Leakage @ Vr：10 µA @ 800 V
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：4-SIP, KBU
- Supplier Device Package：KBU
- Grade：-
- Qualification：-
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Overview
The KBU2508G is a single-phase glass passivated bridge rectifier manufactured by HY Electronic (Cayman) Limited. It features a maximum average forward rectified current of 20 A and a peak repetitive peak reverse voltage of 800 V. The device utilizes a KBU package with four pins for through-hole mounting. Electrical characteristics include a peak forward surge current capability of 280 A and a peak forward voltage drop of 1.1 V at 10 A DC. The component operates within a junction temperature range of -55°C to +150°C, ensuring reliability in general-purpose AC/DC full-wave rectification applications.
Feature Summary
- Glass passivated chip construction for enhanced stability
- Low forward voltage drop for improved efficiency
- High surge current capability for robust performance
- Suitable for printed circuit board mounting
Applications
- AC/DC bridge full wave rectification
- Switching mode power supplies (SMPS)
- Lighting ballasts
- Adapters
Procurement Notes
Verify the specific manufacturer designation, as products bearing certain logos are produced by HY Electronic (Cayman) Limited. Confirm that the procurement matches the exact part number KBU2508G to ensure compatibility with the specified electrical ratings and mechanical dimensions provided in the official datasheet documentation.
Selection Notes
Select this component when an 800 V reverse voltage rating and 20 A continuous forward current are required. Ensure the application environment supports the specified operating temperature range of -55°C to +150°C. Consider the KBU package dimensions for PCB layout constraints and verify thermal management requirements for the 20 A current load.
Part Context
The KBU2508G belongs to the KBU series of silicon bridge rectifiers from HY Electronic. This series is characterized by molded plastic construction and high surge overload ratings. The KBU2508G specifically addresses applications requiring higher voltage blocking capabilities compared to lower-rated variants within the same physical package family.
Replacement Considerations
Ensure any substitute component matches the 800 V reverse voltage, 20 A forward current, and KBU package outline dimensions. Verify that the replacement also offers glass passivation and comparable surge current ratings to maintain circuit integrity.
FAQ
What is the maximum average forward rectified current?
The maximum average forward rectified current is 20 A.
What is the peak repetitive peak reverse voltage?
The maximum repetitive peak reverse voltage is 800 V.
What is the peak forward surge current rating?
The peak forward surge current is 280 A for an 8.3 ms single half sine-wave.
