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Diodes Incorporated SMAJ64CAQ-13-F
- Part No.:
- SMAJ64CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ64CAQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:7,040
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Product details
Overview
SMAJ64CAQ-13-F from Diodes Incorporated is a bi-directional 400W automotive transient voltage suppressor (TVS) diode with 64V reverse standoff voltage, 103V max clamping voltage at 3.9A peak pulse current, and AEC-Q101 qualification for under-hood power line protection in ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD environments.
For engineers reviewing the SMAJ64CAQ-13-F datasheet, SMAJ64CAQ-13-F pinout, SMAJ64CAQ-13-F application, or SMAJ64CAQ-13-F equivalent, this device serves as a primary surge clamp for 12V/24V automotive power rails-requiring precise VRWM matching, low clamping ratio, IATF 16949 traceability, and PPAP-ready documentation.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, delivering 400W peak pulse power per the 10×1000μs waveform (IEC 61000-4-5 compliant), with thermal derating to 1.0W steady-state dissipation at TL = +75°C. Its glass-passivated die ensures stable breakdown behavior over -55°C to +175°C junction temperature range.
Clamping performance is defined by VC = 103V @ IPP = 3.9A (10×1000μs), yielding a clamping ratio of 1.61 relative to VRWM = 64V. Reverse leakage remains ≤0.5μA at VRWM, supporting low-power monitoring circuits without parasitic loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400W - withstands ISO7637-2 Pulse 1 (-100V) and Pulse 3a (-150V) surges without failure |
| Reverse Standoff Voltage | 64V - blocks normal 12V/24V automotive battery transients while triggering above system overvoltage thresholds |
| Max Clamping Voltage | 103V @ 3.9A - limits downstream IC stress during 10×1000μs surge events |
| Breakdown Voltage | 71.1–78.6V @ 1mA - ensures reliable turn-on margin above VRWM with tight process control |
| Operating Temperature | -55°C to +175°C - supports engine bay placement with full AEC-Q101 thermal cycling compliance |
| ESD Rating | ±30kV air/contact discharge (ISO10605) - protects CAN/LIN/FlexRay interfaces from human-body-model events |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic UL 94V-0 housing, cathode band omitted (bi-directional configuration).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional surge path | No polarity dependency - connects across protected line and ground without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified & PPAP capable | Validated for automotive production use with full change control and IATF 16949 manufacturing |
| Glass-passivated die construction | Ensures stable VBR and low leakage across temperature and lifetime stress conditions |
| Lead-free, halogen-free, RoHS 3 compliant | Meets EU Directive 2015/863/EU with <900ppm Br, <900ppm Cl, <1000ppm Sb |
| Moisture Sensitivity Level 1 | Zero bake requirement before reflow; compatible with standard SMT assembly processes |
Applications
| Body Control Module (BCM) Power Input | CAN Transceiver Protection |
|---|---|
Use Scenario: 12V supply rail feeding microcontroller, driver ICs, and sensor interfaces in door modules or lighting controllers. IC Role / Device Role / Timing Role: Primary bidirectional clamp against load dump and alternator ripple-induced surges. Use Value: Limits voltage excursion to ≤103V during ISO7637-2 Pulse 1 (-100V), preventing latch-up or gate oxide damage in downstream logic. |
Use Scenario: CAN_H/CAN_L lines exposed to ESD events during connector mating/unmating in infotainment or ADAS domains. IC Role / Device Role / Timing Role: Fast-response surge shunt placed directly at connector entry point. Use Value: Clamps ±30kV contact discharge (ISO10605) within nanoseconds, preserving signal integrity and transceiver functionality. |
| Engine Control Unit (ECU) Sensor Supply | ADAS Camera Power Line |
Use Scenario: 5V/3.3V regulated supply for crankshaft/camshaft position sensors subjected to ignition noise and relay switching transients. IC Role / Device Role / Timing Role: Secondary clamp after upstream DC-DC converter, filtering high-frequency spikes. Use Value: Maintains VRWM = 64V margin above nominal 12V rail, enabling clean suppression without false triggering. |
Use Scenario: 12V input to GMSL or FPD-Link camera modules mounted near engine compartment. IC Role / Device Role / Timing Role: Front-line protection against load dump pulses up to -100V (ISO7637-2 Pulse 1). Use Value: Withstands 40A IFSM surge current, ensuring survivability during repeated cold-crank events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64A-13-F | Non-automotive grade; lacks AEC-Q101 qualification, PPAP support, and IATF 16949 traceability | Restricted to non-safety-critical consumer or industrial designs | Select only if automotive change control and supply chain documentation are not required |
| TPSM8-6.0 | Lower VRWM (6.0V), higher clamping ratio (1.75), rated for 600W but not AEC-Q101 qualified | Designed for low-voltage data lines-not suitable for 12V/24V power rail clamping | Not interchangeable; mismatched standoff voltage invalidates surge coordination |
Compared with SMAJ64CAQ-13-F, SMAJ64A-13-F omits automotive-specific validation and sourcing controls, while TPSM8-6.0 targets entirely different voltage domains-making neither a functional substitute without redesigning surge coordination and qualification pathways.
Availability
SMAJ64CAQ-13-F is available at Aetrix Electronics and suitable for automotive body electronics, powertrain control units, and ADAS camera systems requiring stable component supply with full AEC-Q101 documentation and IATF 16949 traceability.
Supply support for SMAJ64CAQ-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, specializing in high-reliability components for automotive, industrial, and computing markets.
This device belongs to the SMAJ(C)AQ series-a family of AEC-Q101-qualified, glass-passivated TVS diodes engineered specifically for ISO7637-2 and ISO10605 compliance in harsh automotive environments.
FAQ
What does the 'C' suffix in SMAJ64CAQ-13-F indicate?
The 'C' denotes bi-directional configuration, meaning the device provides symmetrical clamping for both positive and negative transients without polarity sensitivity. It has no cathode band marking and is functionally identical in either orientation across the protected line-unlike uni-directional variants that require correct anode/cathode placement relative to ground.
Is SMAJ64CAQ-13-F compatible with lead-free reflow profiles?
Yes-it features matte tin plating, meets MIL-STD-202 Method 208 solderability requirements, and is rated for Moisture Sensitivity Level 1 per J-STD-020, eliminating pre-bake needs. Its SMA package supports peak reflow temperatures up to 260°C for 30 seconds, aligning with IPC/JEDEC J-STD-020 standard profiles.
How does its clamping voltage compare to competing 64V TVS diodes?
At 103V clamping voltage @ 3.9A (10×1000μs), SMAJ64CAQ-13-F achieves a 1.61 clamping ratio (VC/VRWM), which is tighter than typical industry benchmarks (e.g., 1.7–1.9). This lower ratio reduces stress on downstream 100V-rated MOSFETs and regulators during surge events, improving system-level robustness.
Can it replace SMAJ64A-13-F in existing automotive designs?
No-while electrically similar, SMAJ64CAQ-13-F adds AEC-Q101 qualification, PPAP capability, and IATF 16949 manufacturing controls absent in SMAJ64A-13-F. Automotive OEMs require documented change control, lot traceability, and qualification reports that the 'AQ' suffix guarantees and the base part does not provide.
SMAJ64CAQ-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 3.9A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
SMAJ64CAQ-13-F FAQ
1.How can I place an order for SMAJ64CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ64CAQ-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 SMAJ64CAQ-13-F reliable?
The price and inventory of SMAJ64CAQ-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 SMAJ64CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMAJ64CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ64CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ64CAQ-13-F?
SMAJ64CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ64CAQ-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 SMAJ64CAQ-13-F?
For technical support, including SMAJ64CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ64CAQ-13-F requirements.
6.How does Aetrix verify that SMAJ64CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMAJ64CAQ-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 SMAJ64CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMAJ64CAQ-13-F?
All SMAJ64CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ64CAQ-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 SMAJ64CAQ-13-F part is unused and in its original packaging.
Return procedure for SMAJ64CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ64CAQ-13-F Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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