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Diodes Incorporated GBU604
- Part No.:
- GBU604
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, GBU
- Datasheet:
-
GBU604.pdf
- Description:
- BRIDGE RECT 1PHASE 400V 6A GBU
- Quantity:
- Payment:
- Shipping:
Inventory:458
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Product details
Overview
GBU604 from Diodes Incorporated is a 6.0A standard recovery bridge rectifier in GBU package, rated for 400V repetitive peak reverse voltage (VRRM), with 1.0V max forward voltage at 3A and 5µA max reverse leakage at 25°C. It delivers 175A non-repetitive surge capability and is UL Recognized (E95060), RoHS-compliant, and designed for PCB-mounted AC/DC power supplies in industrial and consumer equipment.
For engineers reviewing the GBU604 datasheet, GBU604 pinout, GBU604 application, or GBU604 equivalent, key selection factors include its 400V VRRM rating, 6.0A average forward current with heatsink, 2.2°C/W junction-to-case thermal resistance, glass-passivated die construction, and through-hole mounting compatibility with #6 screw fastening.
Technical Context
This single-phase, full-wave bridge rectifier integrates four silicon diodes in a monolithic plastic GBU package. It operates under 60Hz resistive or inductive loads, with derating required for capacitive loads (−20% current). Its glass-passivated junction ensures stable reverse characteristics and low IR drift over temperature.
The device supports operation from −55°C to +150°C junction temperature, with 1500VRMS case dielectric strength and 127A²s I²t fusing rating. Thermal performance is specified with a 50mm × 50mm × 1.6mm copper plate heatsink, enabling reliable 6.0A continuous conduction at TJ = +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage the bridge withstands without breakdown; defines AC input voltage headroom (e.g., supports ≤283V RMS sine wave). |
| IF(AV) | 6.0 A - Average rectified output current with heatsink at TJ = +150°C; sets DC output capability in regulated linear or unregulated power supplies. |
| VF Max | 1.0 V @ 3A - Peak forward voltage per diode leg; determines conduction loss (≈3W total at 3A full-wave) and thermal load on heatsink. |
| IR Max | 5 µA @ 25°C - Maximum reverse leakage per diode; critical for low-power standby circuits and high-impedance filter stages. |
| IFSM | 175 A - Non-repetitive peak surge current (8.3ms half-sine); enables robust startup into capacitive or motor loads without failure. |
| RθJC | 2.2 °C/W - Junction-to-case thermal resistance; allows direct heatsink interface design without thermal interface material assumptions. |
| VB | 400 V - Breakdown voltage at IR = 5µA; confirms margin above VRRM and validates process consistency for reliability screening. |
Pinout & Package
Package: GBU - 4-pin, single-in-line (SIP), through-hole plastic package with molded body, plated leads (lead-free tin finish), and polarity marking on top surface. Mounting uses #6 screw with max 5.0 in-lb torque; weight ≈3.7 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | Input AC Terminal 1 | One of two AC input nodes; connects to live/phase side of transformer secondary or line input; symmetrical with AC2. |
| AC2 | Input AC Terminal 2 | Second AC input node; completes full-wave bridge input path; must be wired with correct phase polarity for proper rectification. |
| + (Anode Common) | Positive DC Output | Common anode connection of internal diodes; delivers rectified positive DC output to filter capacitor or regulator input. |
| – (Cathode Common) | Negative DC Output / Ground Reference | Common cathode connection; serves as return path and system ground reference for downstream DC circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enables stable reverse leakage (<5µA at 25°C) and long-term reliability under humidity and thermal cycling stress. |
| 1500VRMS dielectric strength | Ensures safe isolation between AC input and DC output sides, meeting basic insulation requirements for Class II power supplies. |
| 175A surge rating | Supports cold-start into large bulk capacitors (e.g., ≥2200µF) without degradation, eliminating need for external NTC thermistors in many designs. |
| UL Recognized (E95060) | Validates flammability (UL 94V-0), construction, and safety compliance-reducing certification effort for end-equipment approvals. |
| RoHS-compliant lead finish | Meets EU Directive 2015/863/EU (RoHS 3); eliminates hexavalent chromium, cadmium, lead, mercury, PBB, and PBDE in plating layer. |
Applications
| Industrial AC/DC Power Supplies | Consumer Audio Amplifier Power Stages |
|---|---|
Use Scenario: Unregulated 400V-rated DC bus generation from 230VAC mains in motor drive control modules. IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element delivering 6A continuous DC output to bulk capacitor and downstream buck converter. Use Value: 400V VRRM provides 1.7× margin over 230VAC peak (325V), ensuring robustness against line surges and transformer regulation tolerance. |
Use Scenario: Dual-rail ±35V DC supply for Class AB audio power amplifiers in home theater receivers. IC Role / Device Role / Timing Role: Full-wave bridge rectifier feeding center-tapped transformer secondary to generate symmetrical positive/negative rails. Use Value: Low VF (1.0V max) minimizes conduction loss and heat rise in compact chassis, preserving thermal headroom for amplifier ICs. |
| LED Driver Input Stage | Appliance Control Board Power Input |
Use Scenario: Input rectification in isolated LED drivers for commercial lighting operating from 220–240VAC. IC Role / Device Role / Timing Role: Front-end bridge converting AC line to DC for flyback controller IC and primary-side MOSFET switching. Use Value: 175A IFSM handles inrush from EMI filter capacitors during hot-plug events, preventing premature failure in field-deployed units. |
Use Scenario: Main power conversion in smart washing machine control boards with microcontroller, relay drivers, and display. IC Role / Device Role / Timing Role: Standard recovery bridge supplying unregulated DC to 78xx linear regulators and opto-isolated triac drivers. Use Value: UL Recognition and 1500VRMS isolation simplify IEC 60335-1 safety compliance for white goods certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay GBU4K | Same GBU package, 400V VRRM, but 4.0A IF(AV); VF = 1.1V @ 2A; IFSM = 125A. | Lower current rating limits use in >4A continuous designs; suitable only where thermal margin permits derating. | Select when cost sensitivity outweighs current headroom and surge robustness requirements. |
| ON Semiconductor GBPC604 | GBPC package (4-pin DIP), same 400V/6A rating, VF = 1.05V @ 3A, IFSM = 170A, RθJC = 2.5°C/W. | Requires different PCB footprint and mounting; slightly higher thermal resistance reduces heatsink flexibility. | Choose if legacy GBPC layout reuse is prioritized over GBU's lower RθJC and screw-mount compatibility. |
Compared with GBU604, GBU4K offers lower cost but sacrifices 33% average current and 29% surge capacity, while GBPC604 matches electrical specs but trades 0.3°C/W higher thermal resistance and incompatible mechanical mounting-making GBU604 optimal for new designs needing thermal efficiency and mechanical robustness.
Availability
GBU604 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, consumer audio amplifier power stages, LED driver input stages, and appliance control board power inputs requiring stable component supply, long lifecycle support, and RoHS-compliant sourcing.
Supply support for GBU604 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 the Americas.
The GBU series belongs to Diodes' standard recovery bridge rectifier product line, engineered for cost-effective, high-reliability AC/DC front-end conversion in general-purpose power supplies where switching noise and ultra-fast recovery are not required.
FAQ
What is the maximum operating temperature for GBU604?
The GBU604 has a specified junction temperature range of −55°C to +150°C. Its 6.0A average forward current rating assumes operation at TJ = +150°C with a 50mm × 50mm × 1.6mm copper heatsink. Case temperature must remain below +150°C under all conditions to maintain reliability and avoid thermal runaway.
Can GBU604 be used without a heatsink?
Yes, but with significant current derating: the datasheet shows ~3.5A maximum IF(AV) at TC = +75°C without heatsink (vs. 6.0A with heatsink). For sustained 6A operation, a heatsink is mandatory; ambient temperature, airflow, and PCB copper area also critically affect thermal performance in unheatsinked use.
Is GBU604 suitable for high-frequency switching applications?
No. As a standard recovery bridge rectifier, GBU604 has a typical reverse recovery time (trr) not specified in the datasheet and is intended for 50/60Hz line-frequency operation. Its recovery behavior is unsuitable for high-frequency SMPS (>20kHz) due to excessive switching loss and potential voltage overshoot.
Does GBU604 meet automotive qualification standards?
GBU604 is not AEC-Q101 qualified. While Diodes offers automotive-grade variants in the GBU family (e.g., GBU604Q), the standard GBU604 is intended for industrial and consumer applications. Automotive use requires explicit AEC-Q101 testing, PPAP documentation, and IATF 16949 manufacturing controls-available only in designated Q-part numbers.
GBU604 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-SIP, GBU
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 400 V
- Current - Average Rectified (Io):
- 6 A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 3 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- GBU
GBU604 FAQ
1.How can I place an order for GBU604 through Aetrix?
Please submit a Request for Quotation (RFQ) for GBU604 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 GBU604 reliable?
The price and inventory of GBU604 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GBU604 is usually 5 days.
3.What payment methods are accepted for GBU604?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GBU604 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GBU604?
GBU604 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GBU604 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 GBU604?
For technical support, including GBU604 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GBU604 requirements.
6.How does Aetrix verify that GBU604 is sourced from the original manufacturer or authorized distributors?
All GBU604 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 GBU604 meets industry standards.
7.What is the process for return or replacement of GBU604?
All GBU604 units undergo pre-shipment inspection (PSI). If there is an issue with GBU604, 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 GBU604 part is unused and in its original packaging.
Return procedure for GBU604:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GBU604 Tags
-
HDS10M-13
Diodes Incorporated
-
CD-MBL106S
Bourns Inc.
-
MB10S-13
Diodes Incorporated
-
CD-MBL206SL
Bourns Inc.
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MB4S-TP
Micro Commercial Co
-
MB6S-TP
Micro Commercial Co
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CD-MBL210S
Bourns Inc.
-
BAS3007ARPPE6327HTSA1
Infineon Technologies
-
DF02M
Diodes Incorporated
-
CD-MBL210SL
Bourns Inc.
-
DF04M
Diodes Incorporated
-
DF01M
Diodes Incorporated
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