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Diodes Incorporated S2MA-13
- Part No.:
- S2MA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
S2MA-13.pdf
- Description:
- DIODE GEN PURP 1KV 1.5A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:5,733
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Product details
Overview
S2MA-13 from Diodes Incorporated is a glass passivated surface-mount silicon rectifier diode in SMA package, rated for 1000 V peak repetitive reverse voltage (VRRM), 1.5 A average forward current (I(AV)) at 100°C terminal temperature, and 50 A non-repetitive surge current (IFSM). It delivers low forward voltage drop (1.15 V @ 1.5 A) and is optimized for AC/DC conversion in power supplies and input rectification stages.
For engineers reviewing the S2MA-13 datasheet, S2MA-13 pinout, S2MA-13 application, or S2MA-13 equivalent, key selection criteria include its 1000 V blocking capability, thermal resistance of 20 °C/W (junction-to-terminal), RoHS-compliant lead-free finish, and suitability for automated SMT assembly in industrial and consumer power adapters.
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 rating). Its glass passivated die construction ensures stable reverse leakage performance across −65°C to +150°C operating range.
Thermal management relies on PCB copper pads (5.0 mm², 0.013 mm thick) as heatsink per JEDEC-standard mounting. Typical junction-to-terminal thermal resistance is 20 °C/W, and reverse recovery is not specified - confirming it is a standard (non-fast) recovery rectifier.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Maximum repetitive reverse voltage the diode blocks without breakdown; defines high-voltage input stage compatibility. |
| I(AV) | 1.5 A @ TT = 100°C - Continuous DC output current capability when mounted on specified PCB copper pad heatsink. |
| IFSM | 50 A (8.3 ms half-sine) - Surge withstand for line transients or inrush events in offline SMPS and AC adapters. |
| VFM | 1.15 V @ IF = 1.5 A - Forward conduction loss directly impacts efficiency and thermal design in rectifier bridges or discrete inputs. |
| IRM | 5.0 µA @ 25°C / 125 µA @ 125°C - Reverse leakage determines off-state power loss and stability in high-impedance bias networks. |
| RJT | 20 °C/W - Quantifies thermal path efficiency from junction to PCB pad; used to calculate junction temperature rise under load. |
| Tj/TSTG | −65°C to +150°C - Wide operating envelope supports use in automotive under-hood, industrial controls, and outdoor-rated equipment. |
Pinout & Package
Package: SMA (Surface-Mount Axial) - molded plastic case, UL 94V-0 rated, moisture sensitivity level 1. Cathode identified by band marking. Approx. weight: 0.064 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during conduction | Connected to AC input or transformer secondary; must handle full surge and RMS current. |
| Cathode | Forward current exit point; reverse voltage reference | Marked with band; ties to output capacitor or DC bus; defines polarity of rectified output. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Enhances long-term reliability and humidity resistance vs. epoxy-passivated alternatives; critical for high-reliability industrial environments. |
| Low VFM (1.15 V) | Reduces conduction loss by ~15% compared to legacy 1N4007-class diodes at 1.5 A, lowering thermal stress in compact layouts. |
| 50 A IFSM rating | Supports robust startup behavior in offline flyback converters without external surge limiting components. |
| RoHS-compliant lead-free finish | Meets EU Directive Annex Notes 5 & 7 exemptions for glass and high-temp solder; enables global compliance without process requalification. |
Applications
| AC-DC Power Adapters | Industrial Motor Drive Input Stages |
|---|---|
Use Scenario: 10–65 W wall adapters converting 85–265 VAC mains to 5–24 VDC. IC Role / Device Role / Timing Role: Primary-side input rectifier in bridge or single-diode configuration. Use Value: 1000 V VRRM provides 2× safety margin over 265 VAC peak (375 V), ensuring reliable operation during brownouts and surges. | Use Scenario: Rectification of 3-phase or single-phase AC supply feeding DC bus in variable-frequency drives. IC Role / Device Role / Timing Role: Discrete input rectifier in auxiliary power supply or snubber clamp circuit. Use Value: 20 °C/W RJT enables direct PCB thermal coupling without heatsinks, reducing BOM count and board area in space-constrained control modules. |
| LED Driver Input Stage | Appliance Control Board Power Supply |
Use Scenario: Off-line LED drivers for commercial lighting (e.g., T8 retrofit, panel lights). IC Role / Device Role / Timing Role: High-voltage input rectifier preceding PFC or buck converter. Use Value: Low IRM (5 µA @ 25°C) minimizes standby power loss, supporting Energy Star Tier 2 and ERP Lot 9 requirements. | Use Scenario: Embedded power supply on washing machine, HVAC, or refrigerator main control boards. IC Role / Device Role / Timing Role: Mains-input rectifier feeding linear regulator or isolated DC/DC converter. Use Value: −65°C to +150°C rating ensures uninterrupted operation during cold-start and thermal cycling in unventilated enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5408G | Through-hole DO-201AD package; 1000 V VRRM, 3 A I(AV); higher forward voltage (1.2 V @ 3 A). | Requires wave soldering or manual insertion; unsuitable for fully automated SMT lines. | Select when legacy through-hole assembly is mandated or higher continuous current is needed with board-level heatsinking. |
| ES1J | SMA package; 600 V VRRM, 1 A I(AV); fast recovery (35 ns); lower VFM (0.95 V @ 1 A). | Not rated for 1000 V systems; intended for switching-mode outputs, not primary rectification. | Choose only for secondary-side or low-voltage DC/DC rectification where speed matters more than blocking voltage. |
Compared with S2MA-13, 1N5408G offers higher current but sacrifices SMT compatibility and thermal efficiency, while ES1J trades blocking voltage and surge rating for speed - making S2MA-13 the optimal choice for cost-sensitive, high-voltage, SMT-based primary rectification.
Availability
S2MA-13 is available at Aetrix Electronics and suitable for AC-DC power adapters, industrial motor drive input stages, and LED driver input rectification requiring stable component supply and RoHS-compliant manufacturing.
Supply support for S2MA-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/A series belongs to Diodes' general-purpose rectifier product line, engineered specifically for high-reliability, cost-optimized AC input rectification in consumer, industrial, and appliance power supplies.
FAQ
What is the maximum allowable junction temperature for S2MA-13?
The absolute maximum junction temperature is +150°C, consistent with its specified operating range (Tj = −65°C to +150°C). Derating begins at terminal temperature >100°C, where average forward current drops linearly to zero at 150°C per Figure 1 in DS16004 Rev. 9-2.
Is S2MA-13 suitable for use in a full-wave bridge configuration?
Yes - S2MA-13 can be used as one leg of a discrete full-wave bridge. Four units provide 1000 V PIV capability and 1.5 A average output. However, ensure matched thermal layout across all four devices to avoid current imbalance and premature failure.
Does S2MA-13 have a specified reverse recovery time (trr)?
No - the datasheet does not specify reverse recovery time or softness factor. This confirms S2MA-13 is a standard recovery rectifier, not optimized for high-frequency switching; it is intended for 50/60 Hz line-frequency applications.
How does the "-13" suffix affect packaging and reel quantity?
The "-13" suffix denotes tape-and-reel packaging: S2MA-13 ships in 5,000-piece reels. The "-F" variant (e.g., S2MA-13-F) adds RoHS-compliant matte tin plating, while base part number implies standard SnPb finish unless otherwise ordered.
S2MA-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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 FAQ
1.How can I place an order for S2MA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for S2MA-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 S2MA-13 reliable?
The price and inventory of S2MA-13 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 is usually 5 days.
3.What payment methods are accepted for S2MA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2MA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S2MA-13?
S2MA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S2MA-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 S2MA-13?
For technical support, including S2MA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2MA-13 requirements.
6.How does Aetrix verify that S2MA-13 is sourced from the original manufacturer or authorized distributors?
All S2MA-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 S2MA-13 meets industry standards.
7.What is the process for return or replacement of S2MA-13?
All S2MA-13 units undergo pre-shipment inspection (PSI). If there is an issue with S2MA-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 S2MA-13 part is unused and in its original packaging.
Return procedure for S2MA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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