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Diodes Incorporated S2B-13
- Part No.:
- S2B-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S2B-13.pdf
- Description:
- DIODE GEN PURP 100V 1.5A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:4,026
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Product details
Overview
S2B-13 from Diodes Incorporated is a glass passivated surface-mount silicon rectifier diode rated for 100 V peak repetitive reverse voltage, 1.5 A average forward current at 100°C terminal temperature, and 50 A non-repetitive surge current; it delivers 1.15 V forward voltage at 1.5 A and exhibits only 5.0 µA reverse leakage at 25°C - deployed in AC/DC input stage rectification for industrial power supplies.
For engineers reviewing the S2B-13 datasheet, S2B-13 pinout, S2B-13 application, or S2B-13 equivalent, key selection criteria include verified thermal resistance (20 °C/W), RMS reverse voltage rating (70 V), junction-to-terminal thermal path, and RoHS-compliant lead-free plating per EU Directive Annex Notes 5 and 7.
Technical Context
This device operates as a single-phase, half-wave rectifier under 60 Hz resistive or inductive loads, with derating required for capacitive loads (−20% current). Its glass passivated die construction ensures stable reverse characteristics across −65°C to +150°C operating range.
Thermal performance is defined with the device mounted on a PCB using 5.0 mm² copper pads (0.013 mm thick) as heatsink; typical junction-to-terminal thermal resistance is 20 °C/W, and total capacitance measures 20 pF at 1.0 MHz and 4.0 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum peak reverse voltage the diode blocks without breakdown during normal operation |
| I(AV) | 1.5 A @ TT = 100°C - continuous DC output current capability with specified thermal mounting |
| IFSM | 50 A - surge withstand for one 8.3 ms half-sine wave, critical for inrush-limited AC input stages |
| VFM | 1.15 V @ IF = 1.5 A - forward conduction loss directly impacting efficiency and thermal design |
| IRM | 5.0 µA @ 25°C - low reverse leakage preserves standby power integrity in offline converters |
| RJT | 20 °C/W - quantifies thermal impedance from junction to PCB pad, enabling accurate thermal margining |
| CT | 20 pF @ 1.0 MHz - parasitic capacitance affecting high-frequency noise coupling and EMI filter design |
Pinout & Package
Package: SMA (Surface Mount Adapter), molded plastic case with UL 94V-0 flammability rating; cathode identified by band marking; weight 0.064 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for AC waveform positive half-cycle | Connects to transformer secondary or bridge input; must handle full surge current and thermal dissipation |
| Cathode | Output terminal for rectified DC | Marked with band; connects to bulk capacitor input; polarity-sensitive for correct DC polarity |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enables stable reverse leakage and long-term reliability in humid or thermally cycling environments |
| Low forward voltage drop | 1.15 V at rated current reduces conduction loss and eases thermal management in compact layouts |
| 50 A surge rating | Withstands cold-start inrush into large input capacitors without degradation or failure |
| Lead-free / RoHS compliant | Meets EU Directive Annex Notes 5 and 7 exemptions for glass and high-temp solder, supporting global compliance |
Applications
| Industrial AC/DC Power Supply | LED Driver Input Stage |
|---|---|
Use Scenario: Rectifying 60 Hz AC mains after transformer step-down in DIN-rail power supplies. IC Role / Device Role / Timing Role: Discrete rectifier diode performing half-wave conversion in primary-side input circuit. Use Value: 100 V VRRM and 50 A IFSM ensure robustness against line surges and transformer inrush transients. | Use Scenario: Converting AC line to DC for constant-current LED driver IC input rails. IC Role / Device Role / Timing Role: Front-end rectifier feeding bulk capacitor and PFC controller. Use Value: Low 1.15 V VFM minimizes heat generation in enclosed LED fixture enclosures. |
| Embedded System Auxiliary Power | Appliance Control Board Supply |
Use Scenario: Generating isolated 5 V or 12 V auxiliary rail from AC input in PLC I/O modules. IC Role / Device Role / Timing Role: Single-phase rectifier in low-power flyback or capacitor-input supply. Use Value: −65°C to +150°C operating range supports deployment in uncontrolled ambient industrial cabinets. | Use Scenario: Providing main DC rail for microcontroller and relay drivers in washing machine control boards. IC Role / Device Role / Timing Role: Mains-input rectifier preceding linear regulator or buck converter. Use Value: 20 °C/W thermal resistance enables reliable operation with minimal copper area on cost-sensitive PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MBR1100-TP (Micro Commercial Co) | 100 V VRRM, 1.0 A I(AV), Schottky architecture - lower VFM (0.85 V) but higher IRM (500 µA) | Better efficiency at light load; unsuitable for >125°C ambient due to thermal runaway risk | Select when low forward loss dominates over leakage and high-temp stability |
| 1N4002G (ON Semiconductor) | 100 V VRRM, 1.0 A I(AV), axial leaded DO-41 package - no surface-mount compatibility | Requires through-hole assembly; lacks RoHS-compliant lead-free finish standard | Choose only for legacy repair or non-automated prototyping where footprint flexibility exists |
Compared with MBR1100-TP and 1N4002G, S2B-13 provides higher average current (1.5 A vs. 1.0 A), surface-mount compatibility, and guaranteed RoHS compliance - making it optimal for automated production of thermally constrained industrial power stages.
Availability
S2B-13 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input stages, embedded system auxiliary power, and appliance control board supply requiring stable component supply and RoHS-compliant manufacturing.
Supply support for S2B-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 S2x series belongs to Diodes' general-purpose rectifier product line, engineered for cost-effective, high-reliability AC/DC conversion in industrial, consumer, and computing power systems.
FAQ
What is the maximum allowable junction temperature for S2B-13?
The S2B-13 has an operating junction temperature range of −65°C to +150°C. Its thermal design must ensure that under worst-case conduction and surge conditions, the junction does not exceed +150°C - achievable via proper PCB copper pad sizing (5.0 mm² minimum) and airflow management per DS16004 Rev. 9.
Does S2B-13 support lead-free reflow soldering?
Yes - S2B-13 is supplied with matte tin lead-free plating and complies with RoHS Directive 2002/95/EC, including exemptions for glass and high-temperature solder per Annex Notes 5 and 7. It is qualified for standard Pb-free reflow profiles up to 260°C peak temperature.
How does S2B-13 differ from S2B-13-F?
S2B-13-F is the explicitly designated RoHS-compliant version with lead-free finish; however, standard S2B-13 (without -F suffix) is also RoHS-compliant per Diodes Incorporated's documentation (DS16004 Rev. 9, Note 3), and both share identical electrical and thermal specifications.
Can S2B-13 be used in full-wave bridge configurations?
No - S2B-13 is a single diode intended for half-wave rectification. For full-wave operation, four S2B-13 devices may be assembled into a discrete bridge, but Diodes Incorporated recommends purpose-built bridge rectifiers (e.g., GBU4K) for optimized layout, thermal coupling, and reliability.
S2B-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):
- 100 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 1.5 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
S2B-13 FAQ
1.How can I place an order for S2B-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for S2B-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 S2B-13 reliable?
The price and inventory of S2B-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S2B-13 is usually 5 days.
3.What payment methods are accepted for S2B-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2B-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S2B-13?
S2B-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S2B-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 S2B-13?
For technical support, including S2B-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2B-13 requirements.
6.How does Aetrix verify that S2B-13 is sourced from the original manufacturer or authorized distributors?
All S2B-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 S2B-13 meets industry standards.
7.What is the process for return or replacement of S2B-13?
All S2B-13 units undergo pre-shipment inspection (PSI). If there is an issue with S2B-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 S2B-13 part is unused and in its original packaging.
Return procedure for S2B-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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