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Diodes Incorporated GBJ2008-F
- Part No.:
- GBJ2008-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, GBJ
- Datasheet:
-
GBJ2008-F.pdf
- Description:
- BRIDGE RECT 1PHASE 800V 20A GBJ
- Quantity:
- Payment:
- Shipping:
Inventory:14
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Product details
Overview
GBJ2008-F from Diodes Incorporated is a 20A glass passivated single-phase bridge rectifier with 800V peak repetitive reverse voltage (VRRM), 1.05V forward voltage per element at 10A, and 240A non-repetitive surge current rating - designed for AC/DC conversion in industrial power supplies and motor control circuits.
For engineers reviewing the GBJ2008-F datasheet, GBJ2008-F pinout, GBJ2008-F application, or GBJ2008-F equivalent, key selection criteria include thermal resistance (0.8°C/W), RMS reverse voltage (560V), I²t fusing rating (240 A²s), and UL 94V-0 molded plastic case compliance for high-reliability through-hole mounting.
Technical Context
This bridge rectifier integrates four silicon diodes in a single GBJ package with glass-passivated junctions to suppress leakage and enhance surge robustness. It operates across –55°C to +150°C and supports both resistive/inductive loads (full-rated 20A at TC = 110°C) and capacitive loads (with 20% current derating).
The device features low total capacitance (60 pF per element at 1 MHz, 4V reverse bias) and high dielectric strength (1500 VRMS case isolation), making it suitable for EMI-sensitive switching power supplies where reverse recovery noise and insulation integrity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - Maximum peak reverse voltage the bridge withstands without breakdown during AC line transients. |
| IO @ TC=110°C | 20 A - Continuous average forward output current when mounted on heatsink and case temperature held at 110°C. |
| IFSM | 240 A - Single half-sine surge current capability (8.3 ms), enabling robust inrush handling in transformer-fed supplies. |
| VFM @ IF=10A | 1.05 V - Forward voltage drop per diode leg, directly determining conduction loss (≈2.1 V total bridge drop at 10A DC output). |
| RJC | 0.8 °C/W - Junction-to-case thermal resistance measured on 300×300×1.6 mm Cu plate, defining minimum heatsink requirement for thermal design. |
| IR @ TC=125°C | 500 µA - Maximum reverse leakage per element at elevated temperature, critical for standby power and high-impedance hold-up circuits. |
| CT @ 1 MHz | 60 pF - Total capacitance per diode, influencing high-frequency noise coupling and EMI filter sizing in SMPS front-ends. |
Pinout & Package
GBJ2008-F uses the standard GBJ through-hole package: 4-pin single-in-line (SIL) configuration with two AC inputs (A1, A2) and dual DC outputs (+, –). Mounting is via #6 screw with 5.0 in-lbs torque; leads are tin-plated, RoHS-compliant, and solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | AC Input Terminal 1 | One of two alternating current input connections; tied internally to cathode of D1 and anode of D2 in full-wave bridge topology. |
| A2 | AC Input Terminal 2 | Second AC input; tied internally to cathode of D3 and anode of D4 - forms center-tapped or dual-winding interface point. |
| + | Positive DC Output | Anode common node of D1 and D3; delivers rectified positive voltage to bulk capacitor or regulator input. |
| – | Negative DC Output / Common Return | Cathode common node of D2 and D4; serves as system ground reference and return path for DC load current. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die construction | Enables stable reverse leakage (<500 µA at 125°C) and long-term reliability under thermal cycling and humidity stress. |
| UL 94V-0 molded plastic case | Provides flame-retardant mechanical housing rated for industrial environments and safety-critical AC mains interfaces. |
| 1500 VRMS case dielectric strength | Ensures safe isolation between AC input and DC output sides, meeting reinforced insulation requirements for Class II power supplies. |
| Lead-free (RoHS-compliant) plating | Tin-finished leads support lead-free reflow and wave soldering while maintaining wetting performance and intermetallic stability. |
| High I²t rating (240 A²s) | Allows survival of repeated cold-start surges in motor drives and transformer-coupled supplies without fuse coordination issues. |
Applications
| Industrial Power Supply | Motor Drive Front-End |
|---|---|
Use Scenario: AC mains rectification in 200–400W industrial switch-mode power supplies with universal input (85–265VAC). IC Role / Device Role / Timing Role: Primary bridge rectifier converting AC line to unregulated DC bus prior to PFC and DC/DC stages. Use Value: 20A continuous rating and 240A surge capacity handle transformer inrush and short-circuit recovery without degradation. | Use Scenario: Rectifying AC supply for three-phase inverter gate driver auxiliary rails or single-phase BLDC controller logic supplies. IC Role / Device Role / Timing Role: Isolated DC rail generation for gate drivers, microcontrollers, and sensors in variable-frequency drives. Use Value: Low 60 pF capacitance minimizes high-frequency coupling into sensitive control circuitry; UL 94V-0 case meets equipment safety standards. |
| Capacitor-Input Filter System | Heating & HVAC Control Board |
Use Scenario: High-capacitance input filtering in commercial HVAC control power modules with 10,000 µF bulk capacitors. IC Role / Device Role / Timing Role: Full-wave bridge supplying charged bulk capacitor that powers downstream regulators and relays. Use Value: Derated 16A operation (20A × 0.8) ensures thermal stability under high ripple current and low ESR capacitor interaction. | Use Scenario: Mains-powered thermostat and zone valve control boards operating continuously in ambient temperatures up to 70°C. IC Role / Device Role / Timing Role: Line-voltage rectification for 12V/24V DC logic rails in embedded HVAC controllers. Use Value: –55°C to +150°C operating range accommodates enclosure temperature extremes; RoHS compliance supports global product 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 800V VRRM and 20A IO, but GBU package has lower RJC (0.6°C/W) and higher IFSM (300A); lead spacing differs (5.1mm vs. GBJ's 5.0mm). | Preferred where enhanced surge margin or tighter thermal budget exists; requires PCB pad revision due to footprint mismatch. | Select GBU8K only if heatsink area is constrained and surge immunity >240A is required. |
| KBP208 (Comchip) | Identical VRRM (800V), IO (20A), and GBJ footprint; slightly higher VFM (1.1V) and IR (1 mA @ 125°C). | Drop-in replacement for cost-sensitive designs where 50 µA higher leakage at 125°C is acceptable. | Choose KBP208 when sourcing flexibility is prioritized and leakage sensitivity is low in target application. |
Compared with GBU8K, GBJ2008-F offers tighter mechanical tolerance control and UL recognition; versus KBP208, it delivers lower leakage and better thermal stability - making it optimal for safety-certified, thermally demanding industrial rectification.
Availability
GBJ2008-F is available at Aetrix Electronics and suitable for industrial power supplies, motor drive front-ends, HVAC control boards, and capacitor-input filter systems requiring stable component supply and long-term manufacturability.
Supply support for GBJ2008-F 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-efficiency power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The GBJ series targets high-current, high-reliability AC/DC conversion - engineered for ruggedized through-hole deployment in mains-connected equipment where thermal resilience, safety certification, and surge immunity are mandatory.
FAQ
What is the maximum case temperature for continuous 20A operation?
GBJ2008-F sustains 20A average forward current only when case temperature (TC) is maintained at ≤110°C, as defined in the derating curve (Figure 1). Exceeding this temperature requires linear current reduction - e.g., 15A at TC = 125°C - to prevent thermal runaway and ensure 150°C junction limit compliance.
Can GBJ2008-F be used with capacitive input filters without derating?
No - the datasheet explicitly mandates 20% current derating for capacitive loads due to high peak charging currents. At full 20A rating, the device must be applied only with resistive or inductive loads; for capacitor-input configurations, maximum continuous current is limited to 16A to avoid excessive junction temperature rise and premature failure.
Is the GBJ2008-F RoHS-compliant and lead-free?
Yes - GBJ2008-F features lead-free (tin) plating on all terminals and complies with RoHS Directive 2002/95/EC (as revised March 13, 2003), including exemptions for glass and high-temperature solder per EU Annex Notes 5 and 7. Certificate of Compliance is available upon request.
What is the recommended mounting torque for the #6 screw terminal?
The datasheet specifies a maximum mounting torque of 5.0 in-lbs for the #6 screw used to secure the GBJ2008-F case to heat sinks or chassis. Exceeding this value risks cracking the molded plastic housing or damaging internal die attach, compromising thermal performance and long-term reliability.
GBJ2008-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 4-SIP, GBJ
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 800 V
- Current - Average Rectified (Io):
- 20 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.05 V @ 10 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:
- GBJ
GBJ2008-F FAQ
1.How can I place an order for GBJ2008-F through Aetrix?
Please submit a Request for Quotation (RFQ) for GBJ2008-F 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 GBJ2008-F reliable?
The price and inventory of GBJ2008-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GBJ2008-F is usually 5 days.
3.What payment methods are accepted for GBJ2008-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GBJ2008-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GBJ2008-F?
GBJ2008-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GBJ2008-F 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 GBJ2008-F?
For technical support, including GBJ2008-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GBJ2008-F requirements.
6.How does Aetrix verify that GBJ2008-F is sourced from the original manufacturer or authorized distributors?
All GBJ2008-F 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 GBJ2008-F meets industry standards.
7.What is the process for return or replacement of GBJ2008-F?
All GBJ2008-F units undergo pre-shipment inspection (PSI). If there is an issue with GBJ2008-F, 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 GBJ2008-F part is unused and in its original packaging.
Return procedure for GBJ2008-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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