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Diodes Incorporated SMAJ200AQ-13-F
- Part No.:
- SMAJ200AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ200AQ-13-F.pdf
- Description:
- TVS DIODE 200VWM 324VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:3,645
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Product details
Overview
SMAJ200AQ-13-F from Diodes Incorporated is a unidirectional 400W surface-mount automotive transient voltage suppressor (TVS) diode with 200V reverse standoff voltage, 324V max clamping voltage at 1.2A peak pulse current, and AEC-Q101 qualification for under-hood electronics. It protects CAN/LIN bus interfaces and power supply rails in 24V/48V vehicle systems against ISO7637-2 Pulse 1 (–100V), Pulse 2a (+50V), Pulse 3a (–150V), and Pulse 3b (+100V) transients.
For engineers reviewing the SMAJ200AQ-13-F datasheet, SMAJ200AQ-13-F pinout, SMAJ200AQ-13-F application, or SMAJ200AQ-13-F equivalent, this page delivers verified clamping performance, AEC-Q101 compliance status, ISO10605 ESD rating (±30kV), thermal derating curves, and direct replacement guidance for high-voltage automotive TVS selection.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp in series with the protected line, conducting only during negative transients relative to cathode. Its glass-passivated junction ensures stable breakdown at 224–248V (VBR @ 1mA), with <0.5µA leakage at 200V (VRWM) and 324V clamping (VC) under 10×1000µs waveform.
Designed for IATF 16949-certified production, it supports lead-free reflow soldering (JEDEC Level 1), withstands –55°C to +175°C junction temperature, and delivers 400W non-repetitive peak pulse power with 8.3ms half-sine surge capability up to 40A (IFSM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400W - sustains single 10×1000µs surges without failure in automotive load-dump scenarios |
| Reverse Standoff Voltage | 200V - blocks normal 24V/48V system operation while triggering only above transient threshold |
| Max Clamping Voltage | 324V @ 1.2A - limits downstream IC voltage stress during ISO7637-2 Pulse 1 (–100V) and Pulse 3a (–150V) |
| Breakdown Voltage | 224–248V @ 1mA - tight VBR tolerance ensures predictable turn-on across temperature and lot variation |
| Leakage Current | <0.5µA @ 200V - negligible standby power loss in always-on vehicle modules |
| AEC-Q101 Qualified | Yes - validated for automotive under-hood use including temperature cycling, HTRB, and mechanical shock |
Pinout & Package
Package: SMA (DO-214AC), molded plastic UL 94V-0 housing, 0.064g weight, cathode band polarity indicator. Terminals feature matte tin plating, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection point for unidirectional clamping | Connects to protected line; conducts surge current to ground when line voltage falls below cathode reference |
| Anode | Reference/ground return path | Must be tied to low-impedance chassis or battery ground to ensure sub-324V clamping during transients |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Enables stable VBR and low leakage over 15+ year automotive service life with minimal parameter drift |
| 40A peak forward surge rating | Supports repeated 8.3ms half-sine surges (e.g., alternator load dump) without bond-wire fusing |
| Lead-free, halogen-free "Green" design | Meets RoHS 3 (2015/863/EU) and automotive ELV Directive requirements for end-of-life recycling |
| ISO10605 ±30kV ESD protection | Protects LIN/CAN transceivers and microcontroller I/O pins from human-body-model discharges in assembly and field service |
Applications
| Engine Control Unit (ECU) Power Input | 48V Mild Hybrid DC-DC Converter |
|---|---|
Use Scenario: Protects 5V/3.3V LDO regulators and MCU VCC inputs from battery line transients during cold-crank and load-dump events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input capacitor, clamping within 1ns to limit voltage overshoot to ≤324V. Use Value: Prevents latch-up or gate oxide rupture in PMICs and microcontrollers exposed to ISO7637-2 Pulse 1 (–100V) and Pulse 2a (+50V). | Use Scenario: Shields synchronous buck controller gate drivers and current-sense amplifiers in 48V-to-12V converters. IC Role / Device Role / Timing Role: Mounted directly at converter input terminals to absorb 100V+ spikes induced by high-di/dt switching in traction inverters. Use Value: Maintains <0.5µA leakage at 48V nominal, eliminating standby current penalty while clamping ISO7637-2 Pulse 3b (+100V) to safe levels. |
| ADAS Camera Module Power Rail | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Safeguards image sensor bias supplies and serializer ICs against ESD and ignition noise in front-end camera assemblies. IC Role / Device Role / Timing Role: Placed upstream of DC-DC pre-regulator to suppress ±30kV contact discharge (ISO10605) before reaching sensitive analog front-ends. Use Value: Delivers 324V clamping at 1.2A, ensuring downstream 1.8V/2.8V rails remain within absolute maximum ratings during ESD events. | Use Scenario: Guards H-bridge gate driver ICs and current-shunt amplifiers against inductive kickback from 3-phase motor commutation. IC Role / Device Role / Timing Role: Connected across motor phase outputs and ground to clamp flyback voltages exceeding 200V standoff during PWM dead-time transitions. Use Value: Withstands 40A surge (IFSM) and 400W pulse power, preventing destructive voltage doubling on MOSFET drains during regenerative braking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional high-voltage TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200A-13-F | Non-automotive grade; lacks AEC-Q101 qualification and PPAP documentation | Restricted to industrial/commercial designs without automotive change control or IATF 16949 traceability | Select only if AEC-Q101 compliance and automotive PPAP support are not required |
| SMCJ200A-Q | Higher 1500W rating in larger SMC (DO-214AB) package; same VRWM/VC specs | Used where higher surge margin is needed (e.g., alternator output lines), but requires 3× PCB area vs. SMA | Choose when 400W is insufficient and board space allows SMC footprint |
Compared with SMAJ200A-13-F, the AQ variant adds AEC-Q101 validation and IATF 16949 manufacturing control; versus SMCJ200A-Q, it trades surge capacity for compactness-critical for space-constrained ADAS and EPS modules.
Availability
SMAJ200AQ-13-F is available at Aetrix Electronics and suitable for engine control units, 48V mild hybrid converters, ADAS camera modules, and electric power steering systems requiring stable component supply across automotive production lifecycles.
Supply support for SMAJ200AQ-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, and consumer markets, with design centers across Asia, Europe, and the US.
The SMAJ(AQ) series targets automotive-grade transient suppression, delivering AEC-Q101-qualified TVS diodes optimized for ISO7637-2 and ISO10605 compliance in harsh under-hood environments.
FAQ
What is the clamping voltage of SMAJ200AQ-13-F at its rated peak pulse current?
The SMAJ200AQ-13-F has a maximum clamping voltage (VC) of 324V when subjected to a 10×1000µs transient waveform at 1.2A peak pulse current (IPP). This value is measured per Figure 4 in DS40739 Rev. 17-2 and defines the upper voltage limit imposed on protected circuitry during standardized automotive surges.
Is SMAJ200AQ-13-F suitable for bidirectional signal line protection?
No - SMAJ200AQ-13-F is a unidirectional TVS diode, indicated by the absence of the "C" suffix. It conducts only for negative transients relative to its cathode. For bidirectional protection (e.g., CAN bus differential lines), the "C" version SMAJ200CAQ-13-F must be used, which clamps both polarities symmetrically.
How does the thermal derating of SMAJ200AQ-13-F affect its steady-state power dissipation?
At ambient temperature (TA) = +25°C, SMAJ200AQ-13-F supports 5W average power (PM(AV)). However, its steady-state dissipation drops linearly to 1.0W at lead temperature (TL) = +75°C, as shown in Figure 6 of DS40739. This requires careful PCB copper pour design to maintain TL ≤75°C under continuous fault conditions.
Does SMAJ200AQ-13-F meet ISO7637-2 Pulse 3a and Pulse 3b requirements?
Yes - the device is explicitly rated for ISO7637-2 Pulse 3a (–150V) and Pulse 3b (+100V) per the Product Summary in DS40739. Its 200V VRWM and 324V VC ensure robust clamping margins against these waveforms, making it suitable for infotainment and body-control module power inputs.
SMAJ200AQ-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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
SMAJ200AQ-13-F FAQ
1.How can I place an order for SMAJ200AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ200AQ-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 SMAJ200AQ-13-F reliable?
The price and inventory of SMAJ200AQ-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 SMAJ200AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ200AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ200AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ200AQ-13-F?
SMAJ200AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ200AQ-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 SMAJ200AQ-13-F?
For technical support, including SMAJ200AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ200AQ-13-F requirements.
6.How does Aetrix verify that SMAJ200AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ200AQ-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 SMAJ200AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ200AQ-13-F?
All SMAJ200AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ200AQ-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 SMAJ200AQ-13-F part is unused and in its original packaging.
Return procedure for SMAJ200AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ200AQ-13-F Tags
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