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Vishay General Semiconductor - Diodes Division SMAJ6.0A-M3/61
- Part No.:
- SMAJ6.0A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0A-M3/61.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMAJ6.0A-M3/61 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 6.0 V stand-off voltage (VWM), 6.67–7.37 V breakdown voltage (VBR) at 10 mA, 400 W peak pulse power (10/1000 μs), clamping voltage of 10.3 V at 38.8 A, and operates across -55 °C to +150 °C junction temperature.
For engineers reviewing the SMAJ6.0A-M3/61 datasheet, SMAJ6.0A-M3/61 pinout, SMAJ6.0A-M3/61 application, or SMAJ6.0A-M3/61 equivalent, this device is selected for robust overvoltage protection on DC power rails, I/O lines, and sensor interfaces where fast response (<1 ps), low clamping ratio (VC/VBR ≈ 1.49), and AEC-Q101-qualified variants are critical - especially in automotive body control modules and industrial PLC inputs.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging an avalanche breakdown mechanism to divert surge current away from protected circuitry. Its glass-passivated junction ensures stable leakage performance and long-term reliability under repetitive transient stress.
The SMAJ6.0A-M3/61 delivers 400 W peak pulse power at 25 °C with derating above TA = 25 °C per Fig. 2, and exhibits 0.059 %/°C temperature coefficient of VBR, enabling predictable clamping behavior across automotive and industrial ambient ranges. It meets MSL Level 1 per J-STD-020 and supports lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum continuous reverse working voltage before clamping begins; sets upper limit for normal DC rail operation. |
| VBR (min/max) | 6.67 V / 7.37 V at 10 mA - Confirmed breakdown range defining turn-on threshold; ensures reliable triggering without false trips. |
| VC @ IPPM | 10.3 V at 38.8 A - Clamped voltage during 400 W transient; limits downstream IC stress to safe levels under worst-case surge. |
| IPPM | 38.8 A - Peak surge current capability with 10/1000 μs waveform; validates protection margin against IEC 61000-4-5 Level 4 surges. |
| PPPM | 400 W - Peak pulse power rating; defines energy-handling capacity for transient suppression on 12 V automotive or 5 V industrial rails. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance; determines self-heating under sustained leakage or repeated pulses. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-temperature industrial enclosures. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Cathode indicated by band marking on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during forward surge events (rare in unidirectional use). |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 6 V supply rail); avalanche breakdown occurs here during overvoltage to shunt current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 surge immunity requirements for industrial and automotive equipment. |
| Clamping voltage ≤ 10.3 V at 38.8 A | Provides ≥1.7× margin below typical 18 V absolute maximum ratings of 12 V system ICs, preventing latch-up or damage. |
| Response time < 1.0 ps | Ensures suppression initiates before transient energy couples into downstream logic or analog circuitry. |
| MSL Level 1, 260 °C reflow compatible | Supports standard SMT assembly without moisture sensitivity concerns or pre-bake requirements. |
| Halogen-free, RoHS-compliant (M3 suffix) | Fulfills environmental compliance mandates for global OEMs and Tier 1 automotive suppliers. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
|
Use Scenario: Protects 12 V supply rail and switch-sense inputs in BCMs exposed to load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between input connector and local regulator/LDO. Use Value: Limits voltage to ≤10.3 V during 38.8 A surges, preserving MCU and CAN transceiver integrity per ISO 7637-2 Pulse 5a. |
Use Scenario: Shields 24 V digital input channels from field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each optocoupler input leg, mounted directly at connector entry point. Use Value: Absorbs 400 W transients without degradation, maintaining >10⁵ surge cycles per IEC 61000-4-5 Ed. 3. |
| Consumer Appliance Motor Drive Board | Telecom Power Supply Front-End |
|
Use Scenario: Guards microcontroller GPIOs and gate drivers connected to brushed DC motor commutation circuits. IC Role / Device Role / Timing Role: Localized TVS on motor driver enable and feedback lines to suppress inductive kickback. Use Value: Clamps spikes within 1 ps to prevent false triggering or latch-up in 3.3 V logic interfaces. |
Use Scenario: Installed on AC/DC rectified output rails to suppress differential-mode surges entering telecom power supplies. IC Role / Device Role / Timing Role: Secondary clamping stage after MOV, providing precise low-VC protection for downstream DC-DC controllers. Use Value: Delivers 10.3 V clamping at 38.8 A - 2.3 V lower than comparable 6.5 V devices - reducing stress on 12 V output stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A-E3/61 | Same electrical specs, RoHS-compliant but not halogen-free; uses standard matte tin plating without halogen-free molding compound. | Approved for commercial-grade industrial and consumer applications; not qualified for automotive under AEC-Q101. | Select when halogen-free requirement is not mandated and cost optimization is prioritized. |
| SMAJ6.5A-M3/61 | Higher VWM (6.5 V), VBR 7.22–7.98 V, lower IPPM (35.7 A), same PPPM (400 W), slightly higher VC (11.2 V). | Better suited for 6.5 V nominal rails with tighter tolerance margins; trades clamping tightness for increased stand-off headroom. | Choose when protecting 6.5 V LDO outputs where 6.0 V VWM risks leakage-induced power loss. |
Compared with SMAJ6.0A-M3/61, the E3 variant offers identical surge performance at lower material cost but lacks halogen-free certification, while the SMAJ6.5A-M3/61 provides greater DC operating margin at the expense of 0.9 V higher clamping - a trade-off critical for 3.3 V logic interfacing versus 5 V tolerant peripherals.
Availability
SMAJ6.0A-M3/61 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, consumer appliance motor controls, and telecom power front-ends requiring stable component supply with full traceability and lifecycle continuity.
Supply support for SMAJ6.0A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and automotive qualification.
The SMAJ series is engineered for high-energy transient suppression in harsh environments, targeting design-in across automotive, industrial, and communications infrastructure where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the maximum clamping voltage of the SMAJ6.0A-M3/61 under rated surge conditions?
The SMAJ6.0A-M3/61 has a maximum clamping voltage (VC) of 10.3 V at its rated peak pulse current (IPPM) of 38.8 A, measured with a 10/1000 μs waveform at TA = 25 °C. This value is guaranteed per Vishay's datasheet Document Number 88390, Revision 09-Jan-2024, and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The SMAJ6.0A-M3/61 maintains this clamping performance across its specified operating temperature range.
Does the SMAJ6.0A-M3/61 meet automotive qualification standards?
The SMAJ6.0A-M3/61 itself is not AEC-Q101 qualified; however, it shares the same die and construction as the AEC-Q101-qualified variants SMAJ6.0AHE3 and SMAJ6.0AHM3, differentiated only by packaging suffix and test documentation. The M3 suffix confirms halogen-free, RoHS-compliant materials and MSL Level 1 reflow compatibility - essential prerequisites for automotive use - but formal AEC-Q101 certification requires the HE3 or HM3 suffix. Engineers selecting the SMAJ6.0A-M3/61 for automotive applications should verify qualification status with Vishay's latest release notes.
How does the SMAJ6.0A-M3/61 compare to bidirectional TVS diodes like SMAJ6.0CA-M3/61?
The SMAJ6.0A-M3/61 is unidirectional and features a cathode band for polarity-sensitive placement, whereas SMAJ6.0CA-M3/61 is bidirectional with no polarity marking and symmetric clamping in both directions. Electrically, the SMAJ6.0A-M3/61 has VWM = 6.0 V and VBR = 6.67–7.37 V, while SMAJ6.0CA-M3/61 has identical VWM and VBR but supports AC-coupled or floating signal lines. The SMAJ6.0A-M3/61 is preferred for DC power rail protection where polarity is fixed, offering marginally lower leakage and simpler layout integration.
What is the thermal resistance and power derating behavior of the SMAJ6.0A-M3/61?
The SMAJ6.0A-M3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" copper pads. Its peak pulse power rating of 400 W applies only at TA = 25 °C and must be linearly derated above that temperature per Figure 2 in the datasheet - e.g., ~280 W at 75 °C ambient. Continuous power dissipation is limited to 3.3 W at TA = 50 °C. These values are critical for ensuring long-term reliability during repetitive surge events in enclosed industrial enclosures.
Can the SMAJ6.0A-M3/61 be used in place of SMAJ5.0A-M3/61 for 5 V rail protection?
No - the SMAJ6.0A-M3/61 has a 6.0 V stand-off voltage (VWM) and minimum breakdown of 6.67 V, making it unsuitable for direct replacement on 5 V rails where leakage current at 5.0 V must remain below 800 μA. The SMAJ5.0A-M3/61 specifies VWM = 5.0 V and VBR = 6.40–7.07 V, ensuring safe operation with margin below 5.5 V logic thresholds. Using SMAJ6.0A-M3/61 on a 5 V rail risks excessive reverse leakage and potential brownout or reset issues. Always match VWM to the nominal rail voltage.
SMAJ6.0A-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):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 38.8A
- 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)
SMAJ6.0A-M3/61 FAQ
1.How can I place an order for SMAJ6.0A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0A-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 SMAJ6.0A-M3/61 reliable?
The price and inventory of SMAJ6.0A-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 SMAJ6.0A-M3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ6.0A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0A-M3/61?
SMAJ6.0A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0A-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 SMAJ6.0A-M3/61?
For technical support, including SMAJ6.0A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0A-M3/61 requirements.
6.How does Aetrix verify that SMAJ6.0A-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0A-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 SMAJ6.0A-M3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ6.0A-M3/61?
All SMAJ6.0A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0A-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 SMAJ6.0A-M3/61 part is unused and in its original packaging.
Return procedure for SMAJ6.0A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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