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Diodes Incorporated S3GB-13
- Part No.:
- S3GB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S3GB-13.pdf
- Description:
- DIODE GEN PURP 400V 3A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:6,868
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Product details
Overview
S3GB-13 from Diodes Incorporated is a 400 V peak repetitive reverse voltage, 3.0 A average rectified output current, glass passivated surface-mount silicon rectifier diode in SMB package. It delivers low forward voltage drop (1.15 V @ 3.0 A), 100 A non-repetitive surge capability, and operates from –65 °C to +150 °C - used in AC/DC input stage rectification for industrial power supplies and LED drivers.
For engineers reviewing the S3GB-13 datasheet, S3GB-13 pinout, S3GB-13 application, or S3GB-13 equivalent, key selection criteria include its 400 V VRRM rating, thermal resistance of 10 °C/W (junction-to-terminal), 40 pF junction capacitance at 1 MHz, RoHS-compliant lead-free finish, and suitability for automated SMT assembly on PCBs with 5.0 mm² copper pads.
Technical Context
This device is a single-phase, half-wave silicon rectifier optimized for resistive or inductive loads at 60 Hz. Its glass passivated die construction ensures stable reverse leakage (<250 µA at 125 °C) and robust surge immunity up to 100 A (8.3 ms half-sine).
The SMB package enables compact board layout while maintaining thermal performance via direct junction-to-terminal conduction path. Polarity is marked by cathode band; terminal plating meets MIL-STD-202 Method 208 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum reverse voltage before breakdown; defines safe AC input voltage handling (e.g., 280 V RMS line). |
| IO @ TT = 75°C | 3.0 A - Continuous DC output current with 75 °C terminal temperature limit; requires thermal pad design. |
| VFM @ IF = 3.0 A | 1.15 V - Forward conduction loss at rated current; determines power dissipation (3.45 W typical). |
| IFSM (8.3 ms) | 100 A - Surge withstand capability; supports inrush current in offline SMPS front-ends. |
| RJT | 10 °C/W - Junction-to-terminal thermal resistance; sets minimum copper pad area (5.0 mm²) for thermal management. |
| CT @ 1 MHz | 40 pF - Junction capacitance under 4 V reverse bias; impacts high-frequency switching noise in PFC stages. |
| Tj/TSTG | –65 to +150 °C - Extended operating range enables use in automotive under-hood or industrial motor drive environments. |
Pinout & Package
SMB (DO-214AA) surface-mount package: molded plastic case, UL 94V-0 rated, cathode marked by band on body. Terminal plating is matte tin (RoHS-compliant), solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | AC input connection point | Accepts incoming alternating waveform; must be routed with adequate creepage for 400 V isolation. |
| Cathode | DC output connection point | Delivers rectified unidirectional current; polarity marking (band) critical for board assembly verification. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enables stable IRM <250 µA at 125 °C and long-term reliability under humidity stress. |
| Low VF (1.15 V @ 3 A) | Reduces conduction losses in high-current rectification, improving efficiency in 12–24 V output supplies. |
| 100 A IFSM surge rating | Withstands cold-start inrush without degradation - critical for capacitor-input filter designs. |
| SMB package footprint | Compatible with standard 0.020" pitch pick-and-place nozzles; supports high-volume automated assembly. |
| RoHS-compliant matte tin plating | Eliminates lead-based solder compatibility issues and meets global environmental compliance mandates. |
Applications
| Industrial AC/DC Power Supplies | LED Driver Input Rectification |
|---|---|
Use Scenario: Rectifying 120/230 VAC mains input in enclosed industrial power modules. IC Role / Device Role / Timing Role: Primary-side unidirectional current converter; handles full-line voltage and load transients. Use Value: 400 V VRRM and 100 A surge rating prevent failure during brownouts and lightning-induced surges. | Use Scenario: Converting AC line to DC bus for constant-current LED driver ICs in streetlight fixtures. IC Role / Device Role / Timing Role: Front-end bridge leg (in full-wave configuration); operates continuously at elevated ambient temperatures. Use Value: 150 °C max junction temperature and low VF minimize thermal derating in sealed outdoor enclosures. |
| Embedded System Auxiliary Power | Motor Control Board Input Stage |
Use Scenario: Providing isolated 5 V/12 V auxiliary rail from main AC input in PLC backplanes. IC Role / Device Role / Timing Role: Standby rectifier feeding linear regulator or buck controller; duty-cycled but thermally coupled to main board. Use Value: SMB footprint saves space vs. through-hole alternatives; 10 °C/W RJT allows direct thermal coupling to ground plane. | Use Scenario: Rectifying AC feedback or auxiliary supply in 3-phase inverter gate driver boards. IC Role / Device Role / Timing Role: Low-duty-cycle rectifier for isolated auxiliary rails powering optocouplers or level shifters. Use Value: 40 pF CT minimizes EMI coupling into sensitive timing circuits near PWM controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB340-E3/5BT (Vishay) | Same SMB package, 40 V lower VRRM (360 V), 1.1 V VF @ 3 A | Not suitable for 230 VAC systems with line tolerance; limited to 120 VAC or DC-DC input stages | Select only if system peak line voltage remains ≤360 V and thermal margin exceeds 15 °C. |
| ES3D (ON Semiconductor) | SMC package (larger footprint), same 400 V VRRM, 1.35 V VF @ 3 A, 150 A IFSM | Requires PCB redesign; higher VF increases conduction loss by ~0.6 W at full load | Choose when higher surge margin is prioritized over board space and efficiency. |
Compared with SB340-E3/5BT and ES3D, S3GB-13 offers optimal balance of 400 V rating, SMB footprint, and 1.15 V forward drop - making it preferred for space-constrained 230 VAC input rectification where thermal design targets ≤75 °C terminal temperature.
Availability
S3GB-13 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input stages, and embedded auxiliary power circuits requiring stable component supply and RoHS-compliant manufacturing.
Supply support for S3GB-13 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 and manufacturing operations across Asia and the US.
The S3x-B series belongs to Diodes' general-purpose rectifier product line, engineered for cost-sensitive, high-volume AC/DC conversion applications demanding reliability, thermal robustness, and automated assembly compatibility.
FAQ
What is the maximum allowable terminal temperature for continuous operation?
The datasheet specifies IO = 3.0 A at TT = 75 °C. Exceeding this terminal temperature requires derating per Figure 1 - at 100 °C TT, maximum sustainable IO drops to approximately 2.2 A. Thermal design must ensure the SMB package's solder joint temperature remains within this limit using ≥5.0 mm² copper pad area.
Is S3GB-13 suitable for capacitive-input filter applications?
No - the datasheet explicitly states "For capacitive load, derate current by 20%." With a 20% reduction, the usable average current drops to 2.4 A. This limitation arises from increased peak current stress during capacitor charging; use in choke-input or active PFC front-ends is preferred for full-rated performance.
Does S3GB-13 have a lead-free and RoHS-compliant version?
Yes - the standard S3GB-13 is RoHS-compliant per EU Directive Annex Notes 5 and 7, with glass and high-temperature solder exemptions applied. It features matte tin terminal plating and meets J-STD-020C moisture sensitivity Level 1, eliminating need for baking prior to reflow.
How is polarity identified on the S3GB-13 SMB package?
Polarity is indicated by a distinct cathode band printed on the body of the SMB package - located adjacent to the cathode terminal. This marking aligns with industry-standard DO-214AA orientation and must be verified during automated optical inspection (AOI) and functional test setup.
S3GB-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Capacitance @ Vr, F:
- 40pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
S3GB-13 FAQ
1.How can I place an order for S3GB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for S3GB-13 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 S3GB-13 reliable?
The price and inventory of S3GB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3GB-13 is usually 5 days.
3.What payment methods are accepted for S3GB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3GB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3GB-13?
S3GB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3GB-13 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 S3GB-13?
For technical support, including S3GB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3GB-13 requirements.
6.How does Aetrix verify that S3GB-13 is sourced from the original manufacturer or authorized distributors?
All S3GB-13 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 S3GB-13 meets industry standards.
7.What is the process for return or replacement of S3GB-13?
All S3GB-13 units undergo pre-shipment inspection (PSI). If there is an issue with S3GB-13, 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 S3GB-13 part is unused and in its original packaging.
Return procedure for S3GB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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