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Vishay General Semiconductor - Diodes Division SMAJ10A-M3/61
- Part No.:
- SMAJ10A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ10A-M3/61.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,019
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Product details
Overview
SMAJ10A-M3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal 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 - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the SMAJ10A-M3/61 datasheet, SMAJ10A-M3/61 pinout, SMAJ10A-M3/61 application, or SMAJ10A-M3/61 equivalent, key selection criteria include its unidirectional polarity, 1.0 μA max reverse leakage at VWM, -55 °C to +150 °C operating junction temperature range, halogen-free RoHS-compliant construction (M3 suffix), and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
This TVS diode operates as a fast-acting shunt clamp during overvoltage events, leveraging an avalanche breakdown mechanism to divert surge current away from protected circuitry. Its low incremental surge resistance and sub-nanosecond response time ensure effective suppression of transients induced by inductive load switching and ESD.
The device is rated for 400 W peak pulse power (derated to 300 W above 78 V), with thermal resistance of 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), requiring minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for full power handling. Polarity is marked by a cathode band on the SMA package body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 11.1–12.3 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering without premature conduction |
| VC (Clamping Voltage) | 17.0 V at 23.5 A - Maximum voltage seen by protected circuit during 10/1000 μs surge; critical for downstream IC survivability |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy dissipation capability under standardized transient waveform; derates above 78 V |
| IPPM (Peak Pulse Current) | 23.5 A - Peak surge current handled at VC; determines minimum trace width and pad area needed |
| TJmax | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and high-ambient industrial environments |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with 2.54 mm lead pitch; compatible with JEDEC J-STD-020 MSL Level 1 reflow |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to ground or lower-potential rail; completes current path during reverse-biased clamping |
| Cathode | High-side connection; marked by band | Connected to protected line (e.g., 12 V supply or signal); conducts avalanche current into ground when VIN exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V systems without derating |
| 17.0 V clamping at 23.5 A | Limits stress on 15 V-rated logic inputs or gate drivers during surge events, preserving functional integrity |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets automotive and industrial environmental compliance requirements without compromising thermal or electrical performance |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free assembly without moisture sensitivity concerns or pre-bake requirements |
| 1.0 μA max reverse leakage at VWM | Minimizes standby power loss in battery-powered sensor nodes and always-on control circuits |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (up to 35 V, 100 ms) on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground, triggered within <1 ns to clamp overshoot. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers exposed to ISO 7637-2 Pulse 5a/b. |
Use Scenario: Guarding analog outputs (e.g., 4–20 mA current loops) and digital I/O (e.g., RS-485) in factory automation sensors. IC Role / Device Role / Timing Role: Fast-response voltage clamp on signal lines referenced to local ground, absorbing EFT bursts per IEC 61000-4-4. Use Value: Maintains signal integrity and prevents false triggering in PLC-connected pressure/temperature transmitters. |
| Consumer Power Adapter Input Stage | Telecom DC Power Interface |
|
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters powering USB-C PD devices and smart home hubs. IC Role / Device Role / Timing Role: Standoff-clamp TVS across regulated 5–20 V output rails, activated only during fault conditions. Use Value: Blocks destructive transients from entering downstream USB controllers while adding negligible quiescent load. |
Use Scenario: Protecting -48 V DC telecom power feeds against lightning-induced surges in remote radio units and base station backhaul. IC Role / Device Role / Timing Role: High-energy clamping device mounted at board edge, shunting surge current before it reaches PMICs and FPGAs. Use Value: Withstands repeated 10/1000 μs surges up to 400 W without parameter drift or degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-E3/61 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3) | Preferred for commercial-grade non-automotive designs where halogen content is unrestricted | Select E3 for cost-sensitive consumer applications; M3 required for automotive or green-certified industrial programs |
| SMAJ10CA-M3/61 | Bidirectional variant; symmetric VBR (11.1–12.3 V) in both polarities; same VC and PPPM | Used where AC-coupled or floating signal lines require protection regardless of polarity (e.g., Ethernet PHY, audio jacks) | Choose CA only if bidirectional clamping is mandatory; unidirectional SMAJ10A-M3/61 offers lower leakage and simpler grounding |
Compared with SMAJ10A-E3/61, the M3 version adds halogen-free compliance without sacrificing surge rating or thermal performance; compared with SMAJ10CA-M3/61, the unidirectional variant provides tighter leakage control and avoids unnecessary bidirectional conduction in DC-biased rails.
Availability
SMAJ10A-M3/61 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power interfaces, and consumer power adapters requiring stable component supply across production lifecycles.
Supply support for SMAJ10A-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, power efficiency, and AEC-Q qualification.
The SMAJ series targets high-reliability transient suppression in harsh environments, engineered for automotive, industrial, and telecom applications where consistent clamping behavior and long-term parametric stability are essential.
FAQ
What is the clamping voltage of SMAJ10A-M3/61 at its rated peak pulse current?
The SMAJ10A-M3/61 has a maximum clamping voltage (VC) of 17.0 V at 23.5 A peak pulse current (IPPM) under the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry will not experience more than 17.0 V during a standardized surge event. The SMAJ10A-M3/61 maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C).
Is SMAJ10A-M3/61 suitable for automotive applications?
Yes - SMAJ10A-M3/61 is halogen-free and RoHS-compliant, and the M3 suffix indicates qualification to AEC-Q101 when ordered with HE3 or HM3 base codes. While the base SMAJ10A-M3/61 is commercial-grade, Vishay offers AEC-Q101 qualified variants (e.g., SMAJ10A-HM3/61) with identical electrical specs and enhanced reliability testing. For non-qualified use in less demanding automotive subsystems, SMAJ10A-M3/61 remains widely deployed in infotainment and body electronics.
How does the M3 suffix differ from E3 in SMAJ10A-M3/61?
The M3 suffix denotes halogen-free, RoHS-compliant construction, whereas E3 is RoHS-compliant but contains halogens. Both meet JESD 201 Class 2 whisker resistance and J-STD-020 MSL Level 1 reflow standards. Electrically and thermally identical, the choice depends on environmental compliance requirements: M3 is mandated for green-certified programs (e.g., IPC-1752, EU RoHS recast), while E3 suffices for general commercial use. SMAJ10A-M3/61 and SMAJ10A-E3/61 share identical VWM, VBR, VC, and PPPM.
What is the reverse leakage current specification for SMAJ10A-M3/61 at its stand-off voltage?
At the 10 V stand-off voltage (VWM) and 25 °C ambient, SMAJ10A-M3/61 exhibits a maximum reverse leakage current (ID) of 1.0 μA. This low leakage minimizes power loss in always-on circuits and ensures minimal impact on high-impedance sensor bias networks. Leakage remains below 5.0 μA up to +85 °C, supporting reliable operation in extended-temperature industrial deployments.
Can SMAJ10A-M3/61 be used in bidirectional signal protection?
No - SMAJ10A-M3/61 is a unidirectional TVS diode, with polarity defined by the cathode band. For bidirectional protection (e.g., AC lines, differential buses), the SMAJ10CA-M3/61 variant must be used. Attempting to apply reverse voltage beyond its specified limits may cause irreversible breakdown. The unidirectional design of SMAJ10A-M3/61 delivers superior reverse leakage control and is optimized for DC power rail and single-ended signal protection.
SMAJ10A-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:
- 1
- Bidirectional Channels:
- -
- 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)
SMAJ10A-M3/61 FAQ
1.How can I place an order for SMAJ10A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ10A-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 SMAJ10A-M3/61 reliable?
The price and inventory of SMAJ10A-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 SMAJ10A-M3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ10A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ10A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ10A-M3/61?
SMAJ10A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ10A-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 SMAJ10A-M3/61?
For technical support, including SMAJ10A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ10A-M3/61 requirements.
6.How does Aetrix verify that SMAJ10A-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ10A-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 SMAJ10A-M3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ10A-M3/61?
All SMAJ10A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ10A-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 SMAJ10A-M3/61 part is unused and in its original packaging.
Return procedure for SMAJ10A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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