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Diodes Incorporated SMAJ200CA-13-F
- Part No.:
- SMAJ200CA-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ200CA-13-F.pdf
- Description:
- TVS DIODE 200VWM 324VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
SMAJ200CA-13-F from Diodes Incorporated is a bidirectional 400W transient voltage suppressor (TVS) diode in SMA package, designed for overvoltage protection of 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 from –55°C to +150°C - deployed in industrial power supply input stages and telecom line interface protection.
For engineers reviewing the SMAJ200CA-13-F datasheet, SMAJ200CA-13-F pinout, SMAJ200CA-13-F application, or SMAJ200CA-13-F equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC rails, unidirectional vs. bidirectional polarity requirements for AC-coupled or differential lines, thermal derating above +25°C ambient, and IATF 16949-sourced alternatives for automotive-grade designs.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical clamping behavior during positive and negative transients. Its glass-passivated junction ensures stable leakage (<1.0 µA at VRWM) and fast response time (<1.0 ps), enabling effective suppression of ESD (IEC 61000-4-2 Level 4) and lightning-induced surges (IEC 61000-4-5).
The device uses a planar junction structure optimized for low capacitance (≈10 pF at 1 MHz, 0 V bias), making it suitable for high-speed data lines where signal integrity must be preserved. Its 400W peak pulse power rating is defined per the 10/1000 µs waveform, with derating applied above +25°C ambient per Fig. 1 in DS19005 Rev. 19-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W - sustains single 10/1000 µs surge events without failure under specified test conditions |
| Reverse Standoff Voltage (VRWM) | 200 V - maximum continuous DC or RMS voltage before significant leakage begins; sets upper limit for protected circuit operating voltage |
| Breakdown Voltage (VBR) | 224–248 V @ 1.0 mA - onset of avalanche conduction; defines minimum trigger threshold for transient clamping |
| Clamping Voltage (VC) | 324 V @ IPP = 1.2 A - maximum voltage seen by downstream circuit during rated surge; determines required voltage margin for protected components |
| Leakage Current (IR) | ≤1.0 µA @ VRWM - ensures minimal power loss and no interference with high-impedance sensing or bias networks |
| Operating Temperature | –55°C to +150°C - supports deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case with UL 94V-0 flammability rating, cathode band omitted for bidirectional configuration. Moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical bidirectional terminals - either terminal serves as anode or cathode depending on transient polarity; no polarity marking required |
| Case / Body | Thermal and mechanical interface | Non-conductive plastic housing; thermal path relies on PCB copper area and solder joint; no electrical connection to case |
Key Features
| Feature | Design Value |
|---|---|
| 400W Peak Pulse Power | Enables robust protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges on 24–48 V DC distribution lines |
| Glass Passivated Junction | Ensures long-term stability of VBR and IR under thermal cycling and humidity exposure per JESD22-A101 |
| Bidirectional Symmetry | Provides equal clamping performance for ± transients - critical for AC mains inputs, RS-485, CAN FD, and Ethernet PHY protection |
| Low Capacitance (≈10 pF) | Maintains signal integrity on 10 Mbps+ serial buses without adding jitter or attenuation |
| RoHS 3 & Halogen-Free | Complies with EU Directive 2015/863/EU and Diodes' "Green" definition (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb) |
Applications
| Industrial Power Input Protection | Telecom Line Interface |
|---|---|
Use Scenario: 48 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converter input, absorbing energy before it reaches sensitive control ICs. Use Value: Limits transient voltage to ≤324 V, preserving 400 V-rated input capacitors and preventing MOSFET gate oxide breakdown. |
Use Scenario: RS-485 transceiver bus lines in outdoor base station equipment subject to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Bidirectional shunt protector on differential pair, clamping both line-to-ground and line-to-line transients simultaneously. Use Value: Maintains <10 pF capacitance to avoid signal rise-time degradation at 250 kbps, while surviving 10/1000 µs surges up to 400W. |
| Automotive Body Control Module | Renewable Energy Inverter DC Link |
Use Scenario: 12 V battery-supplied microcontroller I/O lines in BCM exposed to ISO 7637-2 pulse 1 and pulse 2a transients. IC Role / Device Role / Timing Role: Secondary-level TVS on LIN bus or sensor analog inputs, supplementing primary front-end protection. Use Value: Delivers sub-1 ns response to fast-edge pulses, ensuring clamping occurs before MCU GPIO damage threshold is exceeded. |
Use Scenario: DC link monitoring circuitry in solar string inverters where PV array voltage can reach 1000 VDC under fault conditions. IC Role / Device Role / Timing Role: Overvoltage guard for isolated voltage divider and ADC front-end, triggered only during abnormal overvoltage events. Use Value: Withstands 200 V VRWM and 324 V VC, providing safe margin above nominal 800 VDC operating point while avoiding false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200A-13-F | Unidirectional version - exhibits polarity-dependent clamping; cathode band present | Required only for DC-biased lines where reverse polarity surge is not expected (e.g., single-rail power input) | Select when protecting strictly unidirectional paths to reduce risk of accidental reverse-bias conduction |
| SMAJ200CAQ-13-F | Automotive-qualified variant - AEC-Q101 certified, PPAP-capable, manufactured in IATF 16949 facility | Required for production automotive ECUs; includes extended reliability testing and change control documentation | Choose for Tier 1 OEM programs where qualification traceability and process control are contractually mandated |
Compared with SMAJ200CA-13-F, the unidirectional SMAJ200A-13-F offers tighter clamping on forward surges but no reverse protection, while SMAJ200CAQ-13-F adds automotive qualification overhead without altering electrical specs - making the standard part optimal for industrial and telecom use where cost and lead time are prioritized.
Availability
SMAJ200CA-13-F is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure equipment, renewable energy inverters, and automotive body electronics requiring stable component supply and consistent parametric performance across production lots.
Supply support for SMAJ200CA-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 portfolio, engineered specifically for high-energy surge immunity in harsh environments - targeting industrial automation, communications infrastructure, and automotive subsystems where reliability under electrical stress is non-negotiable.
FAQ
What is the difference between SMAJ200CA-13-F and SMAJ200A-13-F?
SMAJ200CA-13-F is bidirectional, meaning it clamps transients of either polarity identically, with no cathode band marking. SMAJ200A-13-F is unidirectional, featuring a cathode band and clamping only in the reverse direction - forward surges pass through with VF ≈ 3.5 V. The 'C' suffix explicitly denotes bidirectional construction per Diodes' datasheet nomenclature.
Does SMAJ200CA-13-F meet automotive qualification standards?
No - SMAJ200CA-13-F is the commercial-grade version. For automotive applications, Diodes offers the pin- and electrically identical SMAJ200CAQ-13-F, which is AEC-Q101 qualified, PPAP-capable, and produced in IATF 16949-certified facilities. The 'Q' suffix indicates automotive qualification per Diodes' product definitions.
What is the thermal derating behavior above +25°C ambient?
Per Figure 1 in DS19005 Rev. 19-2, SMAJ200CA-13-F maintains 100% of its 400W peak pulse power rating up to +25°C. Above that, power capability decreases linearly: ~80% at +50°C, ~50% at +100°C, and ~25% at +125°C. Derating applies to both pulse power and peak current (IPP), and assumes proper PCB copper area for heat dissipation.
Can SMAJ200CA-13-F be used on high-speed data lines like USB or HDMI?
No - while its ~10 pF capacitance is low for a 200 V TVS, it exceeds recommended limits for USB 2.0 (<2 pF) and HDMI (>0.5 pF). It is appropriate for RS-485 (≤50 pF allowed), CAN FD (≤30 pF), and slower industrial buses. For high-speed interfaces, lower-voltage, lower-capacitance TVS arrays (e.g., D3V3Z5P or SP1003) are required.
SMAJ200CA-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AC, SMA
- Series:
- SMAJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
SMAJ200CA-13-F FAQ
1.How can I place an order for SMAJ200CA-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ200CA-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 SMAJ200CA-13-F reliable?
The price and inventory of SMAJ200CA-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 SMAJ200CA-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ200CA-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ200CA-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ200CA-13-F?
SMAJ200CA-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ200CA-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 SMAJ200CA-13-F?
For technical support, including SMAJ200CA-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ200CA-13-F requirements.
6.How does Aetrix verify that SMAJ200CA-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ200CA-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 SMAJ200CA-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ200CA-13-F?
All SMAJ200CA-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ200CA-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 SMAJ200CA-13-F part is unused and in its original packaging.
Return procedure for SMAJ200CA-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ200CA-13-F Tags
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