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Diodes Incorporated KBP08G
- Part No.:
- KBP08G
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, KBP
- Datasheet:
-
KBP08G.pdf
- Description:
- BRIDGE RECT 1PHASE 800V 1.5A KBP
- Quantity:
- Payment:
- Shipping:
Inventory:259
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Product details
Overview
KBP08G from Diodes Incorporated is a 1.5A standard recovery bridge rectifier with 800V maximum repetitive peak reverse voltage (VRRM), 1.1V forward voltage at 1.5A, and 5µA reverse leakage current at 25°C. It features glass passivated die construction, 1500VRMS case dielectric strength, and 40A non-repetitive surge capability - used in AC/DC front-end rectification for industrial power supplies and LED drivers.
For engineers reviewing the KBP08G datasheet, KBP08G pinout, KBP08G application, or KBP08G equivalent, key selection criteria include VRRM margin for line-voltage transients, thermal resistance (18°C/W junction-to-case), surge rating for inrush handling, and KBP package compatibility with PCB layout constraints in compact power converters.
Technical Context
This single-phase, full-wave bridge rectifier integrates four silicon diodes in a monolithic KBP package. Its standard recovery characteristic (typical trr > 500ns) suits 50/60Hz line-frequency applications where switching loss is not critical but robust surge immunity is required.
Designed for mounting on a 75mm × 75mm × 1.6mm copper heatsink, it delivers 1.5A average output current at TC = +105°C with thermal resistance of 18°C/W. Junction capacitance is 20pF, supporting stable operation under capacitive-input filter conditions when derated by 20%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Withstands peak line transients up to 800V in 230VAC systems with safety margin |
| IO @ TC=105°C | 1.5 A - Continuous DC output current achievable with proper heatsinking |
| VF @ 1.5A | 1.1 V - Contributes ~1.65W conduction loss per half-cycle at full load |
| IFSM (8.3ms) | 40 A - Handles cold-start inrush into bulk capacitors without failure |
| IR @ 25°C | 5 µA - Low leakage preserves efficiency in high-impedance bias networks |
| RθJC | 18 °C/W - Requires minimum 75mm × 75mm Cu heatsink area for thermal compliance |
| CT | 20 pF - Minimizes EMI coupling in low-frequency rectifier stage |
Pinout & Package
Package: KBP - 4-terminal molded plastic case (UL 94V-0), 14.5mm × 10.4mm footprint, 1.52g weight, matte tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~ (AC1) | AC Input Terminal 1 | One side of AC input winding; connects to transformer secondary or line input |
| ~ (AC2) | AC Input Terminal 2 | Other side of AC input winding; completes full-wave bridge input path |
| + (DC+) | Positive DC Output | Anode of internal upper diodes; feeds bulk capacitor positive rail |
| – (DC–) | Negative DC Output / Ground Reference | Cathode of internal lower diodes; returns to transformer center tap or system ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances long-term reliability under humidity and thermal cycling vs. epoxy-passivated alternatives |
| 1500VRMS dielectric strength | Meets reinforced insulation requirements for Class II AC/DC adapters and industrial SMPS |
| 40A surge rating (8.3ms) | Supports repeated cold starts into 1000µF+ bulk capacitors without degradation |
| RoHS-compliant, lead-free finish | Enables compliance with EU RoHS 3 (2015/863/EU) and halogen-free manufacturing |
| UL Recognized (E95060) | Validates safety certification for end-equipment listing in North America |
Applications
| Industrial AC/DC Power Supplies | LED Driver Front-End Rectification |
|---|---|
Use Scenario: 230VAC input rectification feeding 350–400VDC bulk capacitor in open-frame 30–60W industrial power supply. IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting AC line to unregulated DC bus. Use Value: 800V VRRM provides 2× margin over 230VAC peak (325V), enabling robust operation during brownouts and surges. | Use Scenario: Off-line LED driver powering streetlight modules with passive PFC and buck converter stage. IC Role / Device Role / Timing Role: Primary rectification element before bulk storage and downstream DC-DC conversion. Use Value: 40A IFSM withstands repeated inrush into large electrolytic banks, extending capacitor life and reducing startup stress. |
| Appliance Motor Control Boards | UPS Input Stage Rectification |
Use Scenario: Embedded motor drive in HVAC blower unit requiring reliable AC input conditioning before DC link. IC Role / Device Role / Timing Role: Line-frequency rectifier supplying DC link for inverter stage. Use Value: 18°C/W RθJC enables thermal management on compact PCBs without dedicated heatsinks in space-constrained enclosures. | Use Scenario: Online UPS input stage rectifying utility power before battery charging and inverter feed. IC Role / Device Role / Timing Role: High-surge-capable bridge providing primary DC bus under variable line conditions. Use Value: UL Recognition (E95060) and 1500VRMS isolation support safety-critical backup power system certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU8K (ON Semiconductor) | Same KBP package, 800V VRRM, 1.1V VF, but 50A IFSM and higher RθJC (20°C/W) | Higher surge tolerance; less thermally efficient at sustained 1.5A | Prefer when inrush dominates thermal design; avoid if continuous 1.5A at elevated ambient is required |
| W08M (Vishay) | Same KBP package, 800V VRRM, 1.1V VF, 45A IFSM, RθJC = 19°C/W, no UL recognition | Lacks UL file number; suitable only where end-equipment certification does not mandate UL | Select when cost sensitivity outweighs safety certification needs and thermal margin is acceptable |
Compared with GBU8K and W08M, KBP08G offers balanced surge capability (40A), best-in-class thermal resistance (18°C/W), and UL recognition - making it optimal for certified industrial and lighting power supplies where thermal performance and regulatory compliance are jointly critical.
Availability
KBP08G is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver front-end rectification, and appliance motor control boards requiring stable component supply and long-term manufacturability.
Supply support for KBP08G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, serving industrial, computing, consumer, and communications markets with high-reliability components.
KBP08G belongs to Diodes' standard recovery bridge rectifier product line, engineered for cost-effective, thermally robust AC/DC conversion in mains-powered equipment operating at 50/60Hz line frequencies.
FAQ
What is the maximum operating temperature for KBP08G?
KBP08G has a junction temperature range of –55°C to +150°C and is rated for 1.5A average output current at case temperature (TC) of +105°C. Operation beyond +105°C requires derating per the thermal resistance (18°C/W) and heatsink capability. Storage temperature matches operating range: –55°C to +150°C.
Is KBP08G suitable for use in automotive applications?
KBP08G is not AEC-Q101 qualified and is not intended for automotive under-hood applications. Diodes Incorporated states that automotive-grade variants require specific change control, PPAP capability, and IATF 16949 manufacturing - contact their automotive team for qualified alternatives like the AEC-Q101-certified GBU8JL series.
Does KBP08G have lead-free and RoHS-compliant construction?
Yes. KBP08G features a lead-free matte tin finish compliant with EU RoHS Directive 2015/863/EU (RoHS 3), including all applicable exemptions. It also meets Diodes' "Green" definition - halogen- and antimony-free - and is UL Recognized under file E95060.
How is polarity marked on the KBP08G package?
Polarity is marked on the top surface of the KBP package: "+" indicates the positive DC output terminal, "–" marks the negative DC output terminal, and "~" symbols identify the two AC input terminals. These markings align with the standard KBP outline and match the pinout defined in DS21203 Rev. 13–2.
KBP08G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-SIP, KBP
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 800 V
- Current - Average Rectified (Io):
- 1.5 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1.5 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 V
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- KBP
KBP08G FAQ
1.How can I place an order for KBP08G through Aetrix?
Please submit a Request for Quotation (RFQ) for KBP08G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for KBP08G reliable?
The price and inventory of KBP08G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KBP08G is usually 5 days.
3.What payment methods are accepted for KBP08G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KBP08G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KBP08G?
KBP08G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KBP08G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for KBP08G?
For technical support, including KBP08G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KBP08G requirements.
6.How does Aetrix verify that KBP08G is sourced from the original manufacturer or authorized distributors?
All KBP08G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that KBP08G meets industry standards.
7.What is the process for return or replacement of KBP08G?
All KBP08G units undergo pre-shipment inspection (PSI). If there is an issue with KBP08G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The KBP08G part is unused and in its original packaging.
Return procedure for KBP08G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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