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Diodes Incorporated SMAJ200A-13-F
- Part No.:
- SMAJ200A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ200A-13-F.pdf
- Description:
- TVS DIODE 200VWM 324VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:29,843
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Product details
Overview
SMAJ200A-13-F from Diodes Incorporated is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power lines and signal interfaces. It features a 200V reverse standoff voltage (VRWM), 224–248V breakdown voltage (VBR), 324V maximum clamping voltage (VC) at 1.2A peak pulse current (IPP), and operates across –55°C to +150°C. It is used in industrial power supplies to safeguard downstream regulators against lightning-induced surges.
For engineers reviewing the SMAJ200A-13-F datasheet, SMAJ200A-13-F pinout, SMAJ200A-13-F application, or SMAJ200A-13-F equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current capability under 8.3ms waveform, thermal derating above +25°C, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ps) to transient events and stable clamping performance under repetitive surge conditions. Its unidirectional configuration provides low-leakage reverse blocking (IR ≤ 1.0 µA @ VRWM) while maintaining robust forward conduction during positive transients.
The device complies with IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge) immunity requirements when applied with appropriate series impedance. Its SMA package enables compact layout with minimal parasitic inductance, critical for effective high-speed transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W - Sustains single 8.3ms half-sine surges without failure under defined thermal conditions. |
| Reverse Standoff Voltage | 200 V - Maximum continuous DC or RMS voltage the device blocks without significant leakage. |
| Clamping Voltage | 324 V @ IPP = 1.2 A - Limits voltage seen by protected circuit during worst-case transient event. |
| Breakdown Voltage | 224–248 V @ IT = 1.0 mA - Confirms reliable avalanche initiation within specified tolerance band. |
| Operating Temperature | –55°C to +150°C - Enables deployment in under-hood automotive, industrial motor drives, and outdoor power systems. |
| Package | SMA - Surface-mount outline with 2.29–2.92 mm body width; compatible with standard reflow profiles. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with UL 94V-0 flammability rating, cathode band polarity indicator, and matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink (forward direction) | Connected to protected line; conducts surge current to ground during positive overvoltage. |
| Cathode | Reference terminal (marked with band) | Connected to system ground; establishes unidirectional blocking and clamping behavior. |
Key Features
| Feature | Design Value |
|---|---|
| 400W peak pulse rating | Enables protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges on 24V/48V industrial buses. |
| Glass-passivated die | Ensures long-term reliability and stable electrical parameters under thermal cycling and humidity stress. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on downstream MOSFETs or controllers during surge events. |
| RoHS-compliant & halogen-free | Meets IPC-1752A material declaration requirements for automotive and industrial OEMs. |
Applications
| Industrial Power Input Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 24V DC input rail of programmable logic controller exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role: Primary overvoltage clamp placed upstream of DC-DC converter input. Use Value: Clamps transients to ≤324V, keeping input stage below its 36V absolute maximum rating. | Use Scenario: LIN bus transceiver power supply line subject to battery reversal and jump-start surges. IC Role / Device Role: Unidirectional TVS protecting 5V LDO regulator input from negative and positive spikes. Use Value: Blocks reverse voltage up to –200V and clamps positive surges before LDO dropout occurs. |
| Solar Inverter DC Link Monitoring | Rail-to-Rail Signal Line Protection |
Use Scenario: Voltage sense divider on 400V DC link subjected to switching noise and grid fault transients. IC Role / Device Role: High-voltage TVS shunting transients away from precision ADC input network. Use Value: Maintains <1.0 µA leakage at 200V, preventing measurement offset drift in high-impedance dividers. | Use Scenario: RS-485 data line in factory automation system experiencing ESD and cable discharge events. IC Role / Device Role: Secondary protection stage after integrated ESD diode array, handling higher-energy surges. Use Value: Provides 400W surge capacity where integrated protection is insufficient for long-cable installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200A-TP from Microchip | Identical VRWM (200V), VC = 324V, but rated for 1.0A IPP (vs. 1.2A); slightly lower PPK (350W). | Limited to lower-energy surge environments; not recommended for IEC 61000-4-5 Level 4 compliance. | Select only if cost sensitivity outweighs margin for worst-case surge testing. |
| SMBJ200A from Vishay | Same electrical specs but SMB package (larger footprint, higher thermal mass); PM(AV) = 1.5W vs. 1.0W. | Better steady-state power handling, but requires larger PCB area and may not fit space-constrained layouts. | Prefer when board layout allows SMB and thermal management prioritizes long-duration overload. |
Compared with SMAJ200A-TP and SMBJ200A, SMAJ200A-13-F delivers optimal balance of surge margin, compact SMA footprint, and RoHS/halogen-free compliance for high-volume industrial SMT production.
Availability
SMAJ200A-13-F is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, solar inverter monitoring circuits, and RS-485 communication interfaces requiring stable component supply and full traceability.
Supply support for SMAJ200A-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The SMAJ series belongs to Diodes' transient voltage suppression product line, engineered specifically for high-reliability overvoltage protection in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the maximum clamping voltage of SMAJ200A-13-F at its rated peak pulse current?
The maximum clamping voltage (VC) is 324 V at a peak pulse current (IPP) of 1.2 A, measured using the 8.3 ms single half-sine waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events.
Is SMAJ200A-13-F suitable for bidirectional signal line protection?
No - SMAJ200A-13-F is unidirectional, indicated by the absence of "C" in its part number. For bidirectional protection (e.g., AC lines or differential buses), the SMAJ200CA-13-F variant must be used, which has symmetrical clamping in both polarities and no cathode band marking.
How does the SMA package affect thermal performance compared to SMB or SMC?
The SMA package has lower thermal resistance than SMB/SMC due to smaller die attach area and shorter heat path, resulting in a steady-state power dissipation (PM(AV)) of 1.0 W at TL = +75°C. Derating is steeper above +25°C, requiring careful PCB copper pour design to maintain junction temperature within –55°C to +150°C limits.
Does SMAJ200A-13-F meet AEC-Q200 qualification for automotive use?
No - the standard SMAJ200A-13-F is not AEC-Q200 qualified. Diodes offers an automotive-grade version, SMAJ200AQ-13-F, manufactured in IATF 16949-certified facilities and qualified to AEC-Q200. That variant includes extended temperature screening, PPAP documentation, and change control for automotive applications.
SMAJ200A-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AC, SMA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 200V
- Voltage - Breakdown (Min):
- 224V
- Voltage - Clamping (Max) @ Ipp:
- 324V
- Current - Peak Pulse (10/1000µs):
- 1.2A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
SMAJ200A-13-F FAQ
1.How can I place an order for SMAJ200A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ200A-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 SMAJ200A-13-F reliable?
The price and inventory of SMAJ200A-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 SMAJ200A-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ200A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ200A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ200A-13-F?
SMAJ200A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ200A-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 SMAJ200A-13-F?
For technical support, including SMAJ200A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ200A-13-F requirements.
6.How does Aetrix verify that SMAJ200A-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ200A-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 SMAJ200A-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ200A-13-F?
All SMAJ200A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ200A-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 SMAJ200A-13-F part is unused and in its original packaging.
Return procedure for SMAJ200A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ200A-13-F Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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