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Diodes Incorporated S2B-13-F
- Part No.:
- S2B-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S2B-13-F.pdf
- Description:
- DIODE GEN PURP 100V 1.5A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:195,647
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Product details
Overview
S2B-13-F from Diodes Incorporated is a surface-mount, glass-passivated general-purpose rectifier diode rated for 100 V peak repetitive reverse voltage (VRRM), 1.5 A average forward current (I(AV)), and 50 A non-repetitive surge current (IFSM), used in AC/DC power conversion stages of offline power supplies and DC adapters.
For engineers reviewing the S2B-13-F datasheet, S2B-13-F pinout, S2B-13-F application, or S2B-13-F equivalent, key selection criteria include its 1.15 V forward voltage at 1.5 A, 5 µA reverse leakage at 25°C, 20 pF junction capacitance, thermal resistance of 20 °C/W, and SMB package compatibility with automated SMT assembly.
Technical Context
This device operates as a single-phase, half-wave silicon rectifier with glass-passivated junction for enhanced reliability under humidity and thermal stress. Its 100 V VRRM rating targets universal-input (85–265 VAC) secondary-side rectification where moderate voltage margin and high surge tolerance are required.
The SMB package provides improved thermal dissipation over SMA variants, supporting 1.5 A continuous conduction at terminal temperature ≤100°C per derating curve. Junction-to-terminal thermal resistance is fixed at 20 °C/W when mounted on 5.0 mm² copper pads, enabling predictable thermal design in compact power layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - supports rectification in 115 VAC line-derived circuits with safety margin |
| I(AV) | 1.5 A - continuous output current capability at TT = 100°C with proper PCB heatsinking |
| IFSM | 50 A - withstands inrush surges from capacitor-input filters without failure |
| VFM @ 1.5 A | 1.15 V - determines conduction loss (1.725 W max at full load) and thermal rise |
| IRM @ 25°C | 5.0 µA - ensures low standby leakage in hold-up or standby power paths |
| CT @ 1 MHz | 20 pF - minimizes high-frequency switching noise coupling in SMPS secondary side |
| RθJT | 20 °C/W - enables thermal modeling using terminal temperature as proxy for junction temperature |
Pinout & Package
SMB (DO-214AA) surface-mount package with cathode band marking; molded plastic case rated UL 94V-0, matte tin-plated terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to transformer secondary or switching node; must handle 50 A surge transients |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; ties to output rail; reverse leakage <5 µA ensures minimal standby drain |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Prevents moisture-induced degradation and improves long-term reliability in humid environments |
| Lead-free & RoHS compliant | Meets EU Directive 2002/95/EC with no exemptions required for standard applications |
| Green molding compound | Halogen- and antimony-free encapsulation, compliant with IPC-4101D/126 specification |
| 50 A surge rating | Supports robust operation during cold-start or line-dip recovery without derating |
| Automated assembly compatible | SMB footprint aligns with JEDEC MS-012 standards for pick-and-place and reflow process control |
Applications
| AC-DC Adapter Secondary Rectification | Industrial Power Supply Output Stage |
|---|---|
Use Scenario: Converting transformer-isolated AC to DC in wall-wart adapters delivering 5–12 V at up to 1.2 A. IC Role / Device Role / Timing Role: Unidirectional current valve converting AC waveform to pulsating DC prior to filtering. Use Value: 1.15 V VF minimizes conduction loss at 1.5 A, improving efficiency over legacy 1N400x parts while maintaining SMB footprint. | Use Scenario: Rectifying auxiliary bias windings in industrial 24 V DC power modules with wide ambient temperature range. IC Role / Device Role / Timing Role: Isolated secondary-side rectifier handling intermittent loads and thermal cycling. Use Value: -65°C to +150°C operating range and 20 °C/W RθJT enable stable performance across extended temperature profiles without forced cooling. |
| LED Driver Input Stage | UPS Battery Charging Circuit |
Use Scenario: Full-wave rectification in constant-current LED drivers powering streetlight or signage arrays. IC Role / Device Role / Timing Role: Half-wave rectifier in low-cost, non-isolated buck-derived topologies. Use Value: 50 A IFSM tolerates repeated capacitor charging surges during hot-plug events or brownout recovery. | Use Scenario: AC-to-DC conversion feeding linear or switch-mode battery charger ICs in small UPS units. IC Role / Device Role / Timing Role: Primary rectifier before bulk capacitor and regulation stage. Use Value: 5 µA IRM at 25°C reduces no-load power consumption, extending standby time between grid outages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MURS110T3G | Ultrafast recovery (trr = 75 ns vs. ~2 µs), higher VF (1.3 V @ 1 A) | Better suited for high-frequency flyback snubber or PFC boost diodes | Select only if fast recovery is required; avoid for low-frequency rectification due to higher conduction loss |
| Vishay ES1B-E3/54 | Same SMB package, 100 V VRRM, but lower I(AV) = 1.0 A and VF = 1.3 V @ 1 A | Limited to lower-power adapters or space-constrained designs with reduced thermal budget | Acceptable for cost-sensitive, low-duty-cycle applications where 1.5 A derating is acceptable |
Compared with MURS110T3G and ES1B-E3/54, S2B-13-F delivers optimal balance of surge robustness, conduction efficiency, and thermal capability in standard 50/60 Hz rectification-making it preferred for cost-effective, thermally demanding offline power supplies.
Availability
S2B-13-F is available at Aetrix Electronics and suitable for AC-DC adapters, industrial power supplies, LED drivers, and UPS battery chargers requiring stable component supply and long-lifecycle support.
Supply support for S2B-13-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-reliability power management, signal integrity, and protection solutions.
The S2x series belongs to Diodes' general-purpose rectifier product line, designed specifically for cost-sensitive, high-volume AC/DC power conversion where ruggedness, manufacturability, and RoHS compliance are essential.
FAQ
What is the maximum junction temperature for S2B-13-F?
The absolute maximum junction temperature is +150°C, consistent with its storage temperature rating. Operation at this limit requires strict adherence to the forward current derating curve-specifically, I(AV) must be reduced to zero above 100°C terminal temperature per Figure 1 in DS16004 Rev. 14-2.
Is S2B-13-F suitable for use in automotive applications?
S2B-13-F is not AEC-Q101 qualified and lacks automotive-specific qualification testing (e.g., HTOL, temperature cycling). While it operates from -65°C to +150°C, Diodes Incorporated does not endorse its use in safety-critical or mission-critical automotive systems without additional customer validation.
Does S2B-13-F have a specified reverse recovery time (trr)?
No trr value is specified in DS16004 Rev. 14-2. The device is characterized as a general-purpose silicon rectifier-not an ultrafast or soft-recovery type-so typical trr falls in the microsecond range (~1–2 µs), unsuitable for high-frequency (>100 kHz) switching applications.
Can S2B-13-F replace S2A-13-F in an existing design?
Yes, with voltage derating consideration: S2A-13-F has 50 V VRRM while S2B-13-F is rated for 100 V. Substitution is electrically safe if the circuit's peak reverse voltage remains ≤100 V; however, thermal and surge margins improve, and no layout change is needed since both use the SMB package.
S2B-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-F FAQ
1.How can I place an order for S2B-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for S2B-13-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 S2B-13-F reliable?
The price and inventory of S2B-13-F 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-F is usually 5 days.
3.What payment methods are accepted for S2B-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2B-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S2B-13-F?
S2B-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S2B-13-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 S2B-13-F?
For technical support, including S2B-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2B-13-F requirements.
6.How does Aetrix verify that S2B-13-F is sourced from the original manufacturer or authorized distributors?
All S2B-13-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 S2B-13-F meets industry standards.
7.What is the process for return or replacement of S2B-13-F?
All S2B-13-F units undergo pre-shipment inspection (PSI). If there is an issue with S2B-13-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 S2B-13-F part is unused and in its original packaging.
Return procedure for S2B-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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