Vishay General Semiconductor - Diodes Division SMAJ10CA-M3/61
- Part No.:
- SMAJ10CA-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ10CA-M3/61.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMAJ10CA-M3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal or power lines. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 23.5 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the SMAJ10CA-M3/61 datasheet, SMAJ10CA-M3/61 pinout, SMAJ10CA-M3/61 application, or SMAJ10CA-M3/61 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.7), AEC-Q101 qualification eligibility (via HM3 suffix), halogen-free RoHS compliance, and compatibility with automated SMT placement on consumer, industrial, and automotive PCBs.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance regardless of transient polarity-critical for protecting AC-coupled or floating signal lines. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while the low incremental surge resistance enables rapid energy absorption without thermal runaway.
The device is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 120 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. Its 10/1000 μs waveform response supports repetitive surge events at 0.01% duty cycle, with derating applied above 25 °C ambient per Figure 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - Confirmed breakdown range ensures predictable turn-on during overvoltage events |
| VC @ IPPM | 17.0 V at 23.5 A - Clamping voltage limits downstream IC stress during 400 W transient; clamping ratio = 1.7 |
| PPPM | 400 W (10/1000 μs) - Peak surge power handling capacity; reduced to 300 W for devices ≥78 V |
| IFSM | 40 A (8.3 ms half-sine) - Surge current rating for unidirectional variants; not applicable to bidirectional SMAJ10CA |
| TJ max. | 150 °C - Maximum junction temperature enabling operation in under-hood automotive or industrial environments |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with 5.28 mm length, 4.50 mm width, and 2.29 mm height |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking (unlike unidirectional variants which feature cathode band). Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional distinction between terminals; either side accepts positive or negative transients equally |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or floating power rails without polarity concerns |
| 400 W peak pulse power | Handles high-energy transients from inductive switching or ESD events while maintaining sub-17 V clamping at 23.5 A |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for global electronics manufacturing without compromising surge robustness |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow soldering without moisture sensitivity limitations-no bake required prior to assembly |
| AEC-Q101 qualification path | HM3 variant available for automotive applications; M3 base qualifies for industrial and consumer use with proven reliability |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Limits induced voltage to ≤17.0 V during 23.5 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring faults and relay coil flyback. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V DC input lines to absorb repetitive 400 W transients without degradation. Use Value: Maintains system uptime by preventing false triggering or permanent failure of optocouplers and microcontroller GPIOs. |
| Consumer USB Port ESD Protection | Telecom Line Interface Protection |
|
Use Scenario: Secondary-level ESD suppression on USB 2.0 data lines (D+/D−) after primary polymer-based TVS. IC Role / Device Role / Timing Role: Fast-response silicon TVS providing <1 ns clamping to limit HBM ±8 kV discharge to <17 V at the PHY interface. Use Value: Complies with IEC 61000-4-2 Level 4 when combined with proper layout, reducing PHY IC failure rate in portable devices. |
Use Scenario: Protecting Ethernet PHYs and DSL line drivers from lightning-induced surges on twisted-pair telecom interfaces. IC Role / Device Role / Timing Role: Bidirectional clamping element in hybrid protection circuits with gas discharge tubes and PTCs. Use Value: Withstands multiple 10/1000 μs surges up to 400 W while holding clamping voltage below 17 V to preserve signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CA-E3/61 | Same electrical specs; RoHS-compliant but contains brominated flame retardants (non-halogen-free) | Preferred for commercial-grade non-automotive designs where halogen-free requirement is not mandated | Select E3 for cost-sensitive industrial applications without halogen restrictions |
| SMAJ10A-M3/61 | Unidirectional version; cathode-marked; same VWM, VBR, VC, and PPPM; not suitable for AC or floating nodes | Applicable only where polarity is fixed (e.g., 12 V supply rail protection with known ground reference) | Choose SMAJ10A-M3/61 only when circuit topology guarantees unidirectional transient polarity |
Compared with SMAJ10CA-E3/61 and SMAJ10A-M3/61, the SMAJ10CA-M3/61 uniquely combines bidirectional operation with halogen-free construction-making it optimal for automotive-qualified designs, green-certified consumer products, and any application requiring polarity-agnostic surge immunity without material compliance trade-offs.
Availability
SMAJ10CA-M3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer USB port hardening, and telecom line protection requiring stable component supply and long-term manufacturability.
Supply support for SMAJ10CA-M3/61 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 leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMAJ series is engineered for robust transient suppression in harsh electromagnetic environments-targeting automotive, industrial control, and communications infrastructure where repeatable clamping performance and AEC-Q101 readiness are essential.
FAQ
What does the "CA" suffix indicate in SMAJ10CA-M3/61?
The "CA" suffix denotes a bidirectional configuration: SMAJ10CA-M3/61 provides symmetrical clamping for both positive and negative voltage transients, unlike unidirectional "A" variants. This eliminates polarity concerns during board layout and enables use on AC-coupled or floating signal paths. The SMAJ10CA-M3/61 achieves identical VBR, VC, and PPPM performance in either direction, confirmed in the Vishay datasheet Section "DEVICES FOR BIDIRECTION APPLICATIONS".
Is SMAJ10CA-M3/61 qualified for automotive applications?
SMAJ10CA-M3/61 itself is halogen-free and RoHS-compliant but not AEC-Q101 qualified; however, Vishay offers the HM3 variant (e.g., SMAJ10CAHM3_A/H) with full AEC-Q101 qualification. The SMAJ10CA-M3/61 shares identical electrical and thermal characteristics with its HM3 counterpart-only differing in test certification and packaging code-making it suitable for pre-qualification prototyping or non-safety-critical automotive subsystems.
What is the clamping voltage of SMAJ10CA-M3/61 at its rated peak pulse current?
The SMAJ10CA-M3/61 has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current (IPPM) of 23.5 A, measured using the standardized 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and reflects worst-case device behavior under surge conditions, ensuring downstream ICs see no more than 17.0 V during transient events.
How does the M3 suffix differ from E3 in SMAJ10CA-M3/61?
The M3 suffix indicates halogen-free, RoHS-compliant construction using bromine-free flame retardants in the molding compound, whereas E3 uses RoHS-compliant materials that may contain halogens. Both meet JEDEC MSL Level 1 and JESD 201 Class 2 whisker resistance, but SMAJ10CA-M3/61 satisfies stricter environmental mandates such as IEC 61249-2-21 and certain OEM green procurement policies where E3 does not qualify.
Can SMAJ10CA-M3/61 be used in place of SMAJ10A-M3/61?
No-SMAJ10CA-M3/61 and SMAJ10A-M3/61 are not interchangeable without circuit review. SMAJ10A-M3/61 is unidirectional (cathode-marked) and conducts only in reverse bias, while SMAJ10CA-M3/61 is bidirectional with no polarity marking. Substituting SMAJ10CA-M3/61 for SMAJ10A-M3/61 on a DC rail may cause unintended conduction; conversely, using SMAJ10A-M3/61 in a bidirectional path leaves one polarity unprotected. Always verify node topology before replacement.
SMAJ10CA-M3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 23.5A
- 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:
- DO-214AC (SMA)
SMAJ10CA-M3/61 FAQ
1.How can I place an order for SMAJ10CA-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ10CA-M3/61 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 SMAJ10CA-M3/61 reliable?
The price and inventory of SMAJ10CA-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ10CA-M3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ10CA-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ10CA-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ10CA-M3/61?
SMAJ10CA-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ10CA-M3/61 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 SMAJ10CA-M3/61?
For technical support, including SMAJ10CA-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ10CA-M3/61 requirements.
6.How does Aetrix verify that SMAJ10CA-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ10CA-M3/61 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 SMAJ10CA-M3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ10CA-M3/61?
All SMAJ10CA-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ10CA-M3/61, 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 SMAJ10CA-M3/61 part is unused and in its original packaging.
Return procedure for SMAJ10CA-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ10CA-M3/61 Tags

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