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Vishay General Semiconductor - Diodes Division SA2D-M3/5AT
- Part No.:
- SA2D-M3/5AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SA2D-M3/5AT.pdf
- Description:
- DIODE GEN PURP 200V 2A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,954
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Product details
Overview
SA2D-M3/5AT from Vishay General Semiconductor is a surface-mount glass-passivated silicon rectifier diode in SMA (DO-214AC) package, rated for 2.0 A average forward current, 200 V maximum repetitive peak reverse voltage, and 55 A peak forward surge current. It delivers low forward voltage drop (0.854 V at 2.0 A, 125 °C), low leakage (≤3.0 μA at 25 °C), and fast recovery (1.5 μs typical trr), used in AC/DC power supply rectification and freewheeling paths in telecom and consumer inverters.
For engineers reviewing the SA2D-M3/5AT datasheet, SA2D-M3/5AT pinout, SA2D-M3/5AT application, or SA2D-M3/5AT equivalent, key selection criteria include its 200 V VRRM rating, SMA package thermal performance (RθJA = 80 °C/W), junction temperature range (–55 to +150 °C), and halogen-free RoHS-compliant construction per JESD 201 Class 2 whisker test.
Technical Context
This device is a single-junction, unidirectional silicon rectifier with glass-passivated chip construction ensuring stable reverse blocking and high reliability under repetitive surge stress. Its low VF and low IR support high-efficiency operation in continuous conduction mode power converters.
The SMA (DO-214AC) package enables automated placement and provides defined thermal resistance (RθJL = 12 °C/W) when mounted on 20 mm × 20 mm copper pads. Polarity is marked by a cathode band; terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - supports input rectification up to 200 V DC or 141 V RMS AC without breakdown |
| IF(AV) | 2.0 A - continuous forward current capability at TA = 75 °C with derating above |
| IFSM | 55 A - withstands 10 ms half-sine surge, critical for inrush and fault protection |
| VF @ 2.0 A, 125 °C | 0.854 V - reduces conduction loss and thermal load in high-temperature operation |
| IR @ VRRM, 25 °C | ≤3.0 μA - ensures minimal standby power loss in off-state applications |
| trr | 1.5 μs typical - enables use in medium-frequency switching (e.g., ≤100 kHz) without excessive switching loss |
| TJ max. | +150 °C - allows operation in thermally constrained enclosures or near heat sources |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile, UL 94 V-0 compliant molding compound, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC source or switch node; must handle full IF(AV) and IFSM |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; connects to output rail or filter capacitor; defines polarity of rectified output |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term stability and moisture resistance vs. epoxy-passivated alternatives |
| Low VF at high temperature | 0.854 V at 2.0 A and 125 °C enables higher efficiency in thermally stressed environments |
| MSL Level 1 compliance | Allows unlimited floor life and reflow up to 260 °C peak without preconditioning |
| Halogen-free, RoHS-compliant (M3 suffix) | Fulfills environmental requirements for commercial-grade industrial and telecom equipment |
| Junction capacitance (CJ) | 11 pF at 4.0 V - minimizes high-frequency noise coupling in snubberless designs |
Applications
| AC/DC Power Supply Rectification | DC-DC Converter Freewheeling Diode |
|---|---|
Use Scenario: Full-wave bridge rectification in offline 100–240 VAC input SMPS for set-top boxes and adapters. IC Role / Device Role / Timing Role: Primary rectifier conducting during positive half-cycles; blocks reverse voltage during negative half-cycles. Use Value: Low VF (0.854 V) reduces conduction loss; 200 V VRRM safely handles 170 V peak line voltage with margin. | Use Scenario: Freewheeling path in non-synchronous buck converter for 12 V → 5 V conversion in networking gear. IC Role / Device Role / Timing Role: Provides current recirculation path when main switch turns off; clamps inductive kickback. Use Value: 1.5 μs trr limits reverse recovery loss; 55 A IFSM absorbs transient energy during overload. |
| Inverter Output Stage Protection | Telecom DC Power Distribution |
Use Scenario: Reverse-polarity protection and flyback suppression in 48 V battery-backed UPS inverters. IC Role / Device Role / Timing Role: Unidirectional blocking element preventing backfeed; dissipates stored inductor energy. Use Value: 150 °C TJ max. sustains operation near MOSFET heatsinks; low IR avoids parasitic discharge in standby. | Use Scenario: OR-ing diode in redundant 48 V DC distribution for base station power shelves. IC Role / Device Role / Timing Role: Enables automatic source selection while blocking reverse current between parallel supplies. Use Value: 2.0 A IF(AV) supports mid-power modules; SMA package fits dense PCB layouts with validated thermal pad design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB220-E3/52T (Vishay) | Same SMA package, 2.0 A IF(AV), but 20 V VRRM; lower VF (0.5 V @ 2 A) | Only suitable for low-voltage DC-DC outputs, not AC line rectification | Select only when reverse voltage < 30 V; not a substitute for 200 V blocking requirement |
| ES2D (ON Semiconductor) | SMA package, 2.0 A IF(AV), 200 V VRRM, but VF = 0.95 V @ 2 A (25 °C); trr = 35 ns | Better high-frequency recovery, but higher conduction loss at elevated temperature | Prefer for high-switching-frequency flyback; SA2D-M3/5AT preferred for thermal-limited, medium-frequency rectification |
Compared with SB220-E3/52T and ES2D, the SA2D-M3/5AT offers optimal balance of 200 V blocking, low high-temperature VF, and robust surge handling-making it ideal for general-purpose 200 V rectification where thermal margin and reliability outweigh ultra-fast recovery needs.
Availability
SA2D-M3/5AT is available at Aetrix Electronics and suitable for AC/DC power supply rectification, DC-DC converter freewheeling, and telecom DC power distribution requiring stable component supply, halogen-free compliance, and MSL Level 1 reflow compatibility.
Supply support for SA2D-M3/5AT 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
Vishay General Semiconductor is a global supplier of discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, ruggedness, and application-specific optimization.
The SA2x series is designed for cost-effective, high-yield surface-mount rectification in commercial-grade power electronics, targeting broad adoption in consumer, telecom, and industrial power supplies where proven thermal and surge performance is essential.
FAQ
What is the maximum junction temperature rating for SA2D-M3/5AT?
The SA2D-M3/5AT has a maximum junction temperature (TJ max.) of +150 °C, verified per Vishay's datasheet revision 05-Feb-2020. This rating allows sustained operation in thermally demanding environments such as enclosed power supplies or near heat-generating components. Derating begins above 75 °C ambient, and the device must be mounted on a 20 mm × 20 mm copper pad to achieve specified RθJA = 80 °C/W. The SA2D-M3/5AT maintains electrical integrity up to this limit under rated IF(AV) conditions.
Does SA2D-M3/5AT meet RoHS and halogen-free requirements?
Yes, the SA2D-M3/5AT carries the "M3" suffix, indicating it is halogen-free and RoHS-compliant per EU Directive 2011/65/EU and Vishay document 99912. It also passes JESD 201 Class 2 whisker testing and meets MSL Level 1 per J-STD-020. The matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102. No lead-free exemptions apply-the SA2D-M3/5AT is fully compliant for commercial-grade deployment.
What is the reverse recovery time (trr) of SA2D-M3/5AT and how is it measured?
The SA2D-M3/5AT has a typical reverse recovery time (trr) of 1.5 μs, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the Vishay datasheet. This value reflects behavior in medium-frequency switching applications (e.g., 20–100 kHz). Unlike ultrafast diodes, the SA2D-M3/5AT prioritizes low VF and high surge capability over sub-100 ns trr. Designers should verify switching loss impact using actual circuit waveforms-not rely solely on this typical value.
Can SA2D-M3/5AT replace SA2D-E3/5AT in an existing design?
Yes, SA2D-M3/5AT is a direct replacement for SA2D-E3/5AT in most applications, differing only in material composition: M3 is halogen-free while E3 is standard RoHS-compliant (with brominated flame retardants). Both share identical electrical specs, thermal ratings, package dimensions, pinout, and MSL Level 1 qualification. No layout or thermal redesign is needed. However, if the end-equipment requires halogen-free certification (e.g., IPC-4101D), SA2D-M3/5AT must be used instead of SA2D-E3/5AT.
What is the forward voltage drop of SA2D-M3/5AT at 2.0 A and 125 °C?
The forward voltage drop (VF) of SA2D-M3/5AT is 0.854 V at IF = 2.0 A and TJ = 125 °C, as specified in the Vishay datasheet. This value is lower than its 25 °C VF (0.954 V), demonstrating favorable temperature coefficient for silicon rectifiers. At full rated current and elevated temperature, this VF directly determines conduction loss (Pcond ≈ 1.71 W), informing heatsink sizing and efficiency calculations in the SA2D-M3/5AT's target applications.
SA2D-M3/5AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 2 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.5 µs
- Current - Reverse Leakage @ Vr:
- 3 µA @ 200 V
- Capacitance @ Vr, F:
- 11pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SA2D-M3/5AT FAQ
1.How can I place an order for SA2D-M3/5AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SA2D-M3/5AT 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 SA2D-M3/5AT reliable?
The price and inventory of SA2D-M3/5AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA2D-M3/5AT is usually 5 days.
3.What payment methods are accepted for SA2D-M3/5AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA2D-M3/5AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA2D-M3/5AT?
SA2D-M3/5AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA2D-M3/5AT 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 SA2D-M3/5AT?
For technical support, including SA2D-M3/5AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA2D-M3/5AT requirements.
6.How does Aetrix verify that SA2D-M3/5AT is sourced from the original manufacturer or authorized distributors?
All SA2D-M3/5AT 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 SA2D-M3/5AT meets industry standards.
7.What is the process for return or replacement of SA2D-M3/5AT?
All SA2D-M3/5AT units undergo pre-shipment inspection (PSI). If there is an issue with SA2D-M3/5AT, 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 SA2D-M3/5AT part is unused and in its original packaging.
Return procedure for SA2D-M3/5AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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