Diodes Incorporated KBJL1008-TU
- Part No.:
- KBJL1008-TU
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, KBJL
- Datasheet:
-
KBJL1008-TU.pdf
- Description:
- BRIDGE RECT 1PHASE 800V 10A KBJL
- Quantity:
- Payment:

- Shipping:

Inventory:4,924
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Product details
Overview
KBJL1008-TU from Diodes Incorporated is a 10A standard recovery bridge rectifier with 800V peak repetitive reverse voltage (VRRM), 1.0V max forward voltage at 5A, and 10µA max reverse leakage at 25°C. It features glass-passivated die construction, UL-recognized packaging (E95060), and is optimized for AC/DC power conversion in compact PCB-mounted power supplies.
For engineers reviewing the KBJL1008-TU datasheet, KBJL1008-TU pinout, KBJL1008-TU application, or KBJL1008-TU equivalent, this device is selected for high-surge-capable, cost-sensitive 50/60Hz rectification where thermal resistance (RθJA = 19°C/W without heatsink) and RoHS-compliant green molding compound are critical design constraints.
Technical Context
This bridge rectifier integrates four silicon diodes in a single-phase full-wave configuration with standard recovery characteristics (trr not specified, consistent with standard recovery classification). Its glass-passivated junction ensures stable reverse blocking up to 800V DC and withstands non-repetitive surge currents of 150A (8.3ms half-sine, 25°C) and 300A (1.0ms).
Thermal performance is defined for two mounting conditions: RθJC = 4°C/W (no heatsink), RθJA = 19°C/W (free-air); with heatsink (35mm × 35mm × 1.7mm Cu), RθJA improves to 7°C/W. Junction temperature range spans −55°C to +150°C, supporting industrial and automotive-adjacent power supply environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Maximum repetitive reverse voltage the device blocks reliably in AC line applications. |
| IF(AV) | 10 A - Average forward current rating with heatsink at TC = 120°C; derates to 2.8A without heatsink at TC = 130°C. |
| VF Max | 1.0 V @ 5A - Forward voltage drop defining conduction loss and thermal load under typical operating current. |
| IR Max | 10 µA @ 25°C - Reverse leakage current limiting standby power loss and ensuring stable DC bus hold-up. |
| IFSM (8.3ms) | 150 A - Peak surge capability enabling robustness against inrush currents during cold-start of power supplies. |
| RθJA | 19 °C/W - Thermal resistance from junction to ambient in free-air, directly determining required board copper area or heatsink size. |
| Junction Temp | −55°C to +150°C - Operating range confirming suitability for unregulated environments like TV and game console power sections. |
Pinout & Package
Package: KBJL - Molded plastic case with matte tin-plated leads, UL 94V-0 rated, weight ≈2.4 g. Dimensions: D = 24.7–25.3 mm, E = 10.0–10.6 mm, L = 14.6–15.2 mm, Q = 5.4–6.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | Input AC terminal 1 | One leg of AC input; connects to transformer secondary or AC line input in full-wave bridge topology. |
| AC2 | Input AC terminal 2 | Second leg of AC input; completes AC path into bridge; polarity determines output DC polarity. |
| + (Anode Common) | Positive DC output | Full-wave rectified positive output node; ties internally to anode ends of two diodes. |
| − (Cathode Common) | Negative DC output | Full-wave rectified negative output node; ties internally to cathode ends of two diodes. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivation | Enhances long-term reliability and moisture resistance of PN junctions under thermal cycling and humid environments. |
| UL Recognized (E95060) | Validates safety compliance for end-equipment certification in consumer electronics without additional system-level testing. |
| Lead-free & Halogen-free | Meets RoHS 3 and "Green" standards (<900 ppm Br/Cl, <1000 ppm Sb), enabling global market access and eco-design compliance. |
| High surge rating (300A, 1ms) | Supports reliable operation during capacitor-input filter inrush, reducing need for external NTC or active inrush limiters. |
Applications
| TV Power Supplies | Game Console Power Sections |
|---|---|
Use Scenario: AC-to-DC front-end rectification in 50/60Hz line-powered television power supplies. IC Role / Device Role / Timing Role: Full-wave bridge rectifier converting mains AC to pulsating DC prior to bulk capacitance and regulation. Use Value: 10A average current rating and 800V VRRM ensure compatibility with universal input (90–264VAC) designs and transient overvoltage margin. | Use Scenario: Primary-side rectification in compact, fanless game console AC adapters and internal PSU modules. IC Role / Device Role / Timing Role: Standard-recovery bridge providing low-cost, high-surge-capable rectification with minimal BOM count. Use Value: Glass-passivated die and 150A 8.3ms surge rating withstand repeated cold starts and transient line disturbances common in gaming loads. |
| PC Power Supply Auxiliary Rails | Industrial Control Power Modules |
Use Scenario: Generating +5V/-5V or +12V auxiliary rails in ATX or proprietary PC power supplies. IC Role / Device Role / Timing Role: Secondary-side full-wave rectifier delivering isolated low-voltage DC outputs from transformer secondaries. Use Value: Low VF (1.0V) reduces conduction loss on auxiliary windings, improving light-load efficiency and thermal margin. | Use Scenario: Input rectification in DIN-rail mounted PLC power modules and motor drive control logic supplies. IC Role / Device Role / Timing Role: Robust AC/DC conversion stage handling variable input quality and ambient temperatures up to +70°C. Use Value: −55°C to +150°C junction range and 19°C/W RθJA support operation in enclosed, convection-cooled enclosures without forced air. |
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 KBJL package, 800V VRRM, but 1.1V VF @ 5A and 500µA IR @ 125°C. | Higher leakage at elevated temperature; less suitable for high-ambient industrial use. | Acceptable for cost-driven consumer designs where 125°C IR is not critical. |
| KBPC108 (Comchip) | Same 800V/10A rating, but larger KBPC package (28.5mm × 20.5mm), higher RθJA (~25°C/W), and no UL recognition. | Requires more PCB area and lacks safety certification for end-product listing. | Only viable when footprint and certification are secondary to lowest unit cost. |
Compared with GBU8K and KBPC108, KBJL1008-TU delivers superior thermal resistance (19°C/W vs. ≥25°C/W), lower leakage (10µA vs. 500µA at 125°C), and UL recognition-making it preferred for space-constrained, certified, and thermally demanding power supplies.
Availability
KBJL1008-TU is available at Aetrix Electronics and suitable for TV powers, game powers, and PC powers requiring stable component supply, RoHS compliance, and UL-recognized safety certification.
Supply support for KBJL1008-TU 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, specializing in high-reliability power management, signal integrity, and protection solutions.
KBJL1008-TU belongs to Diodes' standard-recovery bridge rectifier product line, engineered for cost-effective, high-surge-capable AC/DC conversion in consumer and industrial power supplies where thermal efficiency and safety certification are essential.
FAQ
What is the maximum junction temperature for KBJL1008-TU?
The KBJL1008-TU has a specified operating junction temperature range of −55°C to +150°C. This wide range enables use in environments with significant thermal stress, such as enclosed power supplies or equipment operating near heat-generating components. Derating curves in the datasheet define safe current limits at elevated temperatures.
Is KBJL1008-TU suitable for use without a heatsink?
Yes, KBJL1008-TU can operate without a heatsink, but its average forward current rating drops to 2.8A at TC = +130°C. For full 10A operation, a heatsink is required per the datasheet's derating curve. Free-air thermal resistance is 19°C/W, so PCB copper area must be carefully designed to manage self-heating.
Does KBJL1008-TU meet automotive qualification standards?
No, KBJL1008-TU is not AEC-Q200 qualified. While it operates across −55°C to +150°C and supports industrial environments, Diodes explicitly states that automotive-grade versions require separate PPAP-capable, IATF 16949-manufactured parts. This part is intended for consumer and general industrial applications.
How does the KBJL package differ from KBPC or GBU packages?
The KBJL package is smaller (25.3mm × 10.6mm × 15.2mm) than KBPC (28.5mm × 20.5mm) and GBU (22.5mm × 16.5mm), offering higher power density. It features a flat base for improved PCB thermal transfer and matte tin plating compliant with MIL-STD-202. Unlike KBPC, KBJL is UL-recognized (E95060), adding safety certification value.
KBJL1008-TU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-SIP, KBJL
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 800 V
- Current - Average Rectified (Io):
- 10 A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 5 A
- Current - Reverse Leakage @ Vr:
- 10 µA @ 800 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- KBJL
KBJL1008-TU FAQ
1.How can I place an order for KBJL1008-TU through Aetrix?
Please submit a Request for Quotation (RFQ) for KBJL1008-TU 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 KBJL1008-TU reliable?
The price and inventory of KBJL1008-TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KBJL1008-TU is usually 5 days.
3.What payment methods are accepted for KBJL1008-TU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KBJL1008-TU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KBJL1008-TU?
KBJL1008-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KBJL1008-TU 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 KBJL1008-TU?
For technical support, including KBJL1008-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KBJL1008-TU requirements.
6.How does Aetrix verify that KBJL1008-TU is sourced from the original manufacturer or authorized distributors?
All KBJL1008-TU 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 KBJL1008-TU meets industry standards.
7.What is the process for return or replacement of KBJL1008-TU?
All KBJL1008-TU units undergo pre-shipment inspection (PSI). If there is an issue with KBJL1008-TU, 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 KBJL1008-TU part is unused and in its original packaging.
Return procedure for KBJL1008-TU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
KBJL1008-TU Tags

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HDS10M-13
Diodes Incorporated

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CD-MBL106S
Bourns Inc.

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MB10S-13
Diodes Incorporated

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CD-MBL206SL
Bourns Inc.

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MB4S-TP
Micro Commercial Co

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MB6S-TP
Micro Commercial Co

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CD-MBL210S
Bourns Inc.

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BAS3007ARPPE6327HTSA1
Infineon Technologies

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DF02M
Diodes Incorporated

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CD-MBL210SL
Bourns Inc.

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DF04M
Diodes Incorporated

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DF01M
Diodes Incorporated
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