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SMC Diode Solutions KBP406G
- Part No.:
- KBP406G
- Manufacturer:
- SMC Diode Solutions
- Category:
- Bridge Rectifiers
- Package:
- 4-ESIP
- Datasheet:
-
KBP406G.pdf
- Description:
- BRIDGE RECT 1PHASE 600V 4A KBP
- Quantity:
- Payment:
- Shipping:
Inventory:868
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Product details
Overview
KBP406G from Diodes Incorporated is a 4.0A, 600V standard recovery bridge rectifier in KBP package, featuring 1.1V max forward voltage at 4.0A, 5μA max reverse leakage at 1000V/25°C, and 130A non-repetitive surge rating - used for AC/DC full-wave rectification in LED lighting power supplies and office equipment.
For engineers reviewing the KBP406G datasheet, KBP406G pinout, KBP406G application, or KBP406G equivalent, key selection criteria include peak repetitive reverse voltage (600V), average output current capability (4.0A with heatsink), thermal resistance (6°C/W junction-to-case), surge robustness (130A @ 8.3ms), and RoHS-compliant lead-free finish.
Technical Context
The KBP406G integrates four silicon diodes in a single-phase bridge configuration with glass-passivated die construction, enabling stable operation across -55°C to +150°C ambient range. Its standard recovery characteristic (trr not specified, consistent with standard recovery classification) supports line-frequency rectification without fast-switching trade-offs.
Designed for PCB mounting, it delivers 4.0A average rectified output under heatsink conditions (TC = +105°C), derating to 2.0A without heatsink. Thermal performance is defined by RθJC = 6°C/W (with heatsink) and RθJA = 40°C/W (no heatsink), directly informing thermal design margin in compact power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse voltage per diode leg; defines safe AC input voltage ceiling (e.g., ≤420V RMS). |
| IO (with heatsink) | 4.0 A - Continuous DC output current capability when mounted on 75mm × 75mm × 1.6mm Cu heatsink. |
| VF (max) | 1.1 V @ 4.0A - Forward drop per diode element; determines conduction loss (≈4.4W total bridge loss at full load). |
| IR (max) | 5 μA @ 1000V, 25°C - Reverse leakage limit; ensures low standby power in high-impedance hold-up circuits. |
| IFSM | 130 A @ 8.3ms - Surge withstand for cold-start inrush into capacitive inputs; validated per half-sine waveform. |
| RθJC | 6 °C/W - Junction-to-case thermal resistance with heatsink; enables direct thermal interface design for thermal management. |
Pinout & Package
Package: KBP - Molded plastic case (UL 94V-0), 4-terminal single-in-line bridge configuration, 1.52g weight, with polarity marked on body. Leads are bright tin-plated, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~ (AC1) | AC Input Terminal 1 | One of two AC input nodes; connects to live/neutral side of transformer secondary or AC line. |
| ~ (AC2) | AC Input Terminal 2 | Second AC input node; completes full-wave bridge input path with AC1. |
| + (DC+) | Positive DC Output | Anode of internal upper diodes; delivers rectified positive output to filter capacitor or load. |
| – (DC–) | Negative DC Output / Ground Reference | Cathode of internal lower diodes; serves as return path and system ground reference point. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances long-term reliability and moisture resistance in humid environments (e.g., indoor LED drivers). |
| 130A surge rating (8.3ms) | Supports repeated cold-start events without degradation in AC/DC adapters with large bulk capacitors. |
| UL Recognized (E95060) | Validates safety compliance for end-equipment certification in North American markets. |
| Lead-free, RoHS-compliant finish | Meets EU Directive 2015/863/EU; eliminates hazardous substances in final assembly and recycling streams. |
Applications
| LED Lighting Power Supply | Office Equipment AC/DC Adapter |
|---|---|
Use Scenario: Rectifying 120/230VAC mains to DC for constant-current LED driver ICs in downlights and panel lights. IC Role / Device Role / Timing Role: Primary AC/DC conversion stage delivering unregulated DC bus to downstream PWM controller and MOSFET switch. Use Value: Low VF (1.1V max) minimizes conduction loss at 4A, improving efficiency in thermally constrained lamp housings. | Use Scenario: Full-wave rectification in universal-input (90–264VAC) SMPS for printers, scanners, and multifunction devices. IC Role / Device Role / Timing Role: Front-end bridge rectifier feeding bulk capacitor and PFC or flyback controller. Use Value: 600V VRRM safely accommodates 264VAC input with margin, while 130A IFSM handles startup surges into large input capacitance. |
| Home Appliance Power Module | Telecom Wall Adapter |
Use Scenario: Mains rectification in control board power supplies for washing machines, microwaves, and HVAC controllers. IC Role / Device Role / Timing Role: Isolated AC/DC front-end component providing low-noise DC rail for microcontroller and sensor subsystems. Use Value: UL recognition (E95060) and -55°C to +150°C operating range ensure compliance and reliability in variable-temperature appliance enclosures. | Use Scenario: Compact wall-mount adapter powering VoIP phones, routers, and small network infrastructure. IC Role / Device Role / Timing Role: High-density bridge rectifier enabling minimal PCB footprint in space-constrained adapter designs. Use Value: KBP package offers 4-terminal SMD-compatible layout with 14.5mm × 10.4mm footprint, supporting automated assembly and thermal pad integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU6K (ON Semiconductor) | Same 600V VRRM, 6A IO (with heatsink), but higher VF (1.1V typ → 1.15V max) and larger GBU package. | Requires PCB re-layout due to different footprint; better suited for higher-current legacy designs. | Select if >4A continuous current is required and board space allows larger package. |
| W10M (Vishay) | 600V VRRM, 1.5A IO (no heatsink), smaller WOB package, lower surge rating (60A vs. 130A). | Limited to low-power adapters (<15W); insufficient for 4A LED drivers or office equipment. | Only suitable where thermal budget and surge margin are relaxed; not a drop-in replacement. |
Compared with GBU6K and W10M, KBP406G provides optimal balance of 4A capacity, 130A surge robustness, and compact KBP footprint - making it preferred for mid-power LED and office equipment designs requiring certified reliability and thermal headroom.
Availability
KBP406G is available at Aetrix Electronics and suitable for LED lighting power supplies, office equipment AC/DC adapters, and home appliance control modules requiring stable component supply and long-lifecycle support.
Supply support for KBP406G 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, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The KBP series belongs to Diodes' standard recovery bridge rectifier product line, engineered for cost-effective, reliable AC/DC conversion in consumer, industrial, and lighting power supplies.
FAQ
What is the maximum operating temperature for KBP406G?
The KBP406G has an operating junction temperature range of -55°C to +150°C. Its thermal resistance values (RθJC = 6°C/W with heatsink, RθJA = 40°C/W without) allow direct calculation of allowable ambient temperature based on power dissipation and cooling method - critical for LED driver thermal design.
Is KBP406G suitable for automotive applications?
KBP406G is not AEC-Q200 qualified and lacks PPAP documentation or IATF 16949-specific change control. While it operates across -55°C to +150°C, Diodes explicitly states that automotive-grade variants require direct consultation - this part is intended for commercial/industrial use only.
How does the KBP package differ from GBU or WOB packages?
The KBP package measures 14.5mm × 10.4mm × 14.5mm with 4 inline terminals and a 3° lead angle; GBU is larger (20mm × 14.2mm), and WOB is smaller (12.7mm × 10.2mm). KBP offers optimized thermal performance (6°C/W RθJC) and PCB area efficiency for 4A applications, unlike WOB's 1.5A rating or GBU's 6A rating.
Can KBP406G replace KBP404G or KBP408G in a design?
Yes - all KBP4xxG parts share identical pinout, package, and thermal characteristics. Substituting KBP406G (600V) for KBP404G (400V) increases reverse voltage margin; substituting for KBP408G (800V) reduces margin. Forward voltage and surge ratings are consistent across the series, enabling direct replacement where VRRM requirements align.
KBP406G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- SMC Diode Solutions
- Series:
- -
- Package/Case:
- 4-ESIP
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 600 V
- Current - Average Rectified (Io):
- 4 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 4 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- KBP
KBP406G FAQ
1.How can I place an order for KBP406G through Aetrix?
Please submit a Request for Quotation (RFQ) for KBP406G 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 KBP406G reliable?
The price and inventory of KBP406G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for KBP406G is usually 5 days.
3.What payment methods are accepted for KBP406G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for KBP406G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for KBP406G?
KBP406G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your KBP406G 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 KBP406G?
For technical support, including KBP406G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your KBP406G requirements.
6.How does Aetrix verify that KBP406G is sourced from the original manufacturer or authorized distributors?
All KBP406G 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 KBP406G meets industry standards.
7.What is the process for return or replacement of KBP406G?
All KBP406G units undergo pre-shipment inspection (PSI). If there is an issue with KBP406G, 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 KBP406G part is unused and in its original packaging.
Return procedure for KBP406G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
KBP406G Tags
-
HDS10M-13
Diodes Incorporated
-
CD-MBL106S
Bourns Inc.
-
MB10S-13
Diodes Incorporated
-
CD-MBL206SL
Bourns Inc.
-
MB4S-TP
Micro Commercial Co
-
MB6S-TP
Micro Commercial Co
-
CD-MBL210S
Bourns Inc.
-
BAS3007ARPPE6327HTSA1
Infineon Technologies
-
DF02M
Diodes Incorporated
-
CD-MBL210SL
Bourns Inc.
-
DF04M
Diodes Incorporated
-
DF01M
Diodes Incorporated
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