Diodes Incorporated S2MA-13-F
- Part No.:
- S2MA-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
S2MA-13-F.pdf
- Description:
- DIODE GEN PURP 1KV 1.5A SMA
- Quantity:
- Payment:

- Shipping:

Inventory:64,432
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Product details
Overview
S2MA-13-F from Diodes Incorporated is a surface-mount, glass-passivated general-purpose silicon rectifier diode in SMB package, rated for 1000 V peak repetitive reverse voltage (VRRM), 1.5 A average forward current (I(AV)), and 50 A non-repetitive surge current (IFSM). It delivers low 1.15 V forward voltage drop at 1.5 A and exhibits only 5.0 µA peak reverse current at 25°C, making it suitable for AC/DC input stage rectification in offline power supplies.
For engineers reviewing the S2MA-13-F datasheet, S2MA-13-F pinout, S2MA-13-F application, or S2MA-13-F equivalent, key selection criteria include its 1000 V blocking capability, thermal resistance of 20 °C/W (junction-to-terminal), 20 pF junction capacitance at 1 MHz, and RoHS-compliant matte tin plating - all critical for high-voltage, automated assembly environments.
Technical Context
This device operates as a single-phase, half-wave rectifier under resistive or inductive loads at 60 Hz. Its glass-passivated die construction ensures stable reverse leakage performance up to 125°C (125 µA IRM) and enables reliable operation across -65°C to +150°C ambient and storage conditions.
The SMB package provides mechanical robustness with UL 94V-0 flammability rating and moisture sensitivity level 1 compliance. Terminal polarity is marked by a cathode band, and solderability meets MIL-STD-202, Method 208 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports primary-side rectification in universal-input (85–265 VAC) SMPS without derating |
| I(AV) | 1.5 A @ TT = 100°C - continuous DC output current capability with standard PCB copper pad heatsinking |
| IFSM | 50 A (8.3 ms half-sine) - withstands inrush surges from cold-started capacitive inputs |
| VFM | 1.15 V @ IF = 1.5 A - minimizes conduction loss and thermal stress in high-efficiency designs |
| IRM | 5.0 µA @ 25°C, 125 µA @ 125°C - ensures low standby power loss and stable high-temperature blocking |
| RθJT | 20 °C/W - enables thermal design using 5.0 mm² copper pad per Diodes Inc. mounting recommendation |
| CT | 20 pF @ 1 MHz, 4 V reverse - limits high-frequency switching noise coupling in EMI-sensitive applications |
Pinout & Package
The S2MA-13-F uses an SMB (DO-214AA) surface-mount package with cathode-band polarity marking. Dimensions: 3.30–3.94 mm (L) × 4.06–4.57 mm (W) × 1.96–2.21 mm (H); weight ≈ 0.093 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to AC input or transformer secondary; must handle full surge current path |
| Cathode | Forward current exit / reverse-blocking terminal | Marked with band; connects to bulk capacitor positive rail; sustains full VRRM during off-state |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Eliminates need for hermetic sealing while maintaining stable IRM and long-term reliability under humidity |
| Lead-free, RoHS-compliant finish | Matte tin plating ensures compatibility with lead-free reflow profiles and eliminates Pb-related contamination risk |
| Green molding compound | Halogen- and antimony-free epoxy meets IEC 61249-2-21, reducing environmental impact and corrosion risk |
| 50 A surge rating | Supports direct connection to mains without external NTC thermistor in cost-sensitive consumer adapters |
| Level 1 moisture sensitivity | Enables use without baking prior to SMT assembly, reducing manufacturing overhead |
Applications
| AC-DC Adapter Input Rectification | Industrial Power Supply Front-End |
|---|---|
Use Scenario: 10–65 W wall adapters converting 85–265 VAC to 5–24 VDC for consumer electronics. IC Role / Device Role / Timing Role: Primary-side bridge or single-diode rectifier delivering unregulated DC bus to PWM controller. Use Value: 1000 V VRRM prevents breakdown during 300 VAC transients; 1.15 V VFM keeps conduction loss below 1.7 W at full load. | Use Scenario: 100–300 W industrial open-frame PSUs powering PLC I/O modules and sensors. IC Role / Device Role / Timing Role: Input rectifier in discrete full-wave bridge configuration feeding bulk capacitor and PFC stage. Use Value: 50 A IFSM handles repeated cold-start surges; 20 °C/W RθJT allows thermal management with minimal copper area. |
| LED Driver Bulk Rectification | Appliance Control Board Power Input |
Use Scenario: Constant-current LED drivers for commercial lighting operating from 120/230 VAC mains. IC Role / Device Role / Timing Role: First-stage rectifier converting AC line to high-voltage DC for flyback or buck-boost regulation. Use Value: Low 20 pF CT reduces EMI generation near switching node; green compound avoids halogen outgassing near optics. | Use Scenario: Embedded control boards in washing machines, HVAC controllers, and kitchen appliances. IC Role / Device Role / Timing Role: Mains input protection and rectification before linear regulator or isolated DC/DC converter. Use Value: -65°C to +150°C TJ range ensures operation in sealed, thermally constrained enclosures; RoHS compliance meets global appliance regulations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | 600 V VRRM, 1.0 A I(AV), TO-277 package, 1.05 V VFM @ 1 A | Limited to lower-input-voltage designs; higher thermal resistance (30 °C/W) | Select when 600 V rating suffices and footprint flexibility allows TO-277 |
| ON Semi MUR160 | 600 V VRRM, 1.0 A I(AV), DO-41 through-hole, 1.0 V VFM @ 1 A, faster recovery (~75 ns) | Not surface-mount; unsuitable for automated assembly; faster recovery trades off higher IRM | Choose only for legacy through-hole designs requiring ultrafast recovery |
Compared with STTH1L06S and MUR160, the S2MA-13-F offers superior voltage margin (1000 V vs. 600 V), higher current rating (1.5 A vs. 1.0 A), and SMB packaging optimized for modern SMT lines - making it the preferred choice for new universal-input, high-reliability power designs.
Availability
S2MA-13-F is available at Aetrix Electronics and suitable for AC-DC adapter input rectification, industrial power supply front-end design, and LED driver bulk rectification requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for S2MA-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, application-optimized components for power management, signal integrity, and protection.
The S2x/A series belongs to Diodes' general-purpose rectifier product line, engineered for cost-effective, high-yield AC/DC conversion in consumer, industrial, and lighting applications where robust surge handling and thermal stability are essential.
FAQ
What is the maximum allowable junction temperature for S2MA-13-F?
The S2MA-13-F has a specified operating junction temperature range of -65°C to +150°C. Its thermal resistance (RθJT) is 20 °C/W when mounted on a 5.0 mm² copper pad, enabling safe operation at 100°C terminal temperature with 1.5 A average current - verified per DS16004 Rev. 14-2 derating curves.
Is S2MA-13-F suitable for use in a full-wave bridge configuration?
Yes - S2MA-13-F is commonly used as one leg in discrete full-wave bridge rectifiers. Its 1000 V VRRM and 50 A IFSM allow pairing with three identical units to handle 265 VAC inputs with margin. Polarity is clearly marked via cathode band, ensuring correct orientation during placement.
Does S2MA-13-F require pre-baking before reflow soldering?
No - the device is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without baking. This simplifies SMT line logistics and eliminates moisture-related popcorning risk.
How does the green molding compound affect reliability?
The halogen- and antimony-free green compound meets IEC 61249-2-21 and eliminates corrosive outgassing during high-temperature operation. This improves long-term bond wire integrity and prevents PCB pad corrosion - especially beneficial in sealed, high-humidity environments like outdoor LED fixtures or white goods.
S2MA-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 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 @ 1000 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -65°C ~ 150°C
S2MA-13-F FAQ
1.How can I place an order for S2MA-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for S2MA-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 S2MA-13-F reliable?
The price and inventory of S2MA-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 S2MA-13-F is usually 5 days.
3.What payment methods are accepted for S2MA-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2MA-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S2MA-13-F?
S2MA-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S2MA-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 S2MA-13-F?
For technical support, including S2MA-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2MA-13-F requirements.
6.How does Aetrix verify that S2MA-13-F is sourced from the original manufacturer or authorized distributors?
All S2MA-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 S2MA-13-F meets industry standards.
7.What is the process for return or replacement of S2MA-13-F?
All S2MA-13-F units undergo pre-shipment inspection (PSI). If there is an issue with S2MA-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 S2MA-13-F part is unused and in its original packaging.
Return procedure for S2MA-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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