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Vishay General Semiconductor - Diodes Division SMAJ6.0A-E3/5A
- Part No.:
- SMAJ6.0A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0A-E3/5A.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:17,779
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Product details
Overview
SMAJ6.0A-E3/5A from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping fast voltage transients on power and signal lines. It features 6.67 V minimum breakdown voltage (VBR), 10.3 V maximum clamping voltage (VC) at 38.8 A peak pulse current, 400 W peak pulse power (10/1000 μs), and 6.0 V stand-off voltage (VWM). It protects MOSFETs, ICs, and sensor interfaces in automotive and industrial power rails.
For engineers reviewing the SMAJ6.0A-E3/5A datasheet, SMAJ6.0A-E3/5A pinout, SMAJ6.0A-E3/5A application, or SMAJ6.0A-E3/5A equivalent, key selection criteria include unidirectional polarity, 120 °C/W junction-to-ambient thermal resistance, AEC-Q101 qualification eligibility via HE3 suffix variants, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown. Its glass-passivated junction ensures stable VBR tolerance (±5% typical) and low incremental surge resistance, enabling consistent clamping performance across repetitive transients. The device responds within <1 ps to ESD or lightning-induced surges.
Thermal design relies on its RθJA = 120 °C/W and RθJL = 30 °C/W ratings, requiring PCB copper pad area optimization per Vishay's recommended 0.2" × 0.2" layout. It supports 40 A non-repetitive forward surge current (8.3 ms half-sine) and maintains operation from –55 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.67 V / 7.37 V at 10 mA test current - defines reliable avalanche initiation threshold under DC stress |
| VWM | 6.0 V - maximum continuous reverse operating voltage before leakage exceeds 800 μA |
| VC @ IPPM | 10.3 V at 38.8 A - clamped voltage during 400 W transient, limiting downstream component stress |
| PPPM | 400 W (10/1000 μs waveform) - peak surge energy handling capacity for inductive switching events |
| IFSM | 40 A (8.3 ms half-sine) - surge current rating for unidirectional forward conduction during fault conditions |
| TJ range | –55 °C to +150 °C - enables deployment in under-hood automotive and industrial environments |
| RθJA | 120 °C/W - dictates required PCB copper area for thermal management at 3.3 W steady-state dissipation |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode indicated by band marking; polarity critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to protected line side; conducts during forward surge events up to 40 A |
| Cathode | Avalanche clamping node (unidirectional) | Connected to ground or lower-potential rail; initiates breakdown when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surge events without derating below 78 V |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage (<800 μA at VWM) over temperature and lifetime |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow assembly without popcorn or delamination risk |
| AEC-Q101 qualification path | HE3/HM3 suffix variants meet automotive reliability standards for engine control, body electronics, and ADAS power domains |
| Low profile SMA package | 0.208" × 0.157" footprint fits high-density layouts while maintaining 0.110" standoff for thermal relief |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (ISO 7637-2 Pulse 5a) on 12 V battery-fed ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery input and DC-DC converter input stage. Use Value: Limits voltage to ≤10.3 V during 38.8 A surges, preventing damage to 16 V-rated input capacitors and LDOs. | Use Scenario: Guarding analog output lines of pressure sensors exposed to ESD in factory automation systems. IC Role / Device Role / Timing Role: Reverse-biased TVS shunting fast transients before they reach precision op-amp inputs. Use Value: Sub-1 ps response and 10.3 V clamping protect 5 V rail-connected ADC front-ends from ±8 kV contact discharge. |
| Consumer Device USB Port Protection | MOSFET Gate Driver Transient Suppression |
Use Scenario: Safeguarding VBUS line in USB 2.0 host ports against hot-plug induced overshoot and ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 6.0 V) placed directly on VBUS trace upstream of USB controller. Use Value: Clamps 15 kV air discharge to ≤10.3 V within nanoseconds, preserving USB PHY integrity without affecting 5 V signaling. | Use Scenario: Protecting high-side N-channel MOSFET gate drivers from Miller-induced voltage spikes during switching. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between gate and source to clamp dv/dt-induced overshoot. Use Value: 10.3 V clamping prevents gate oxide breakdown in 20 V-rated MOSFETs during 100 ns transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A-M3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and SMA package | No functional difference; selected where halogen-free compliance is mandated in final product certification | Choose M3 suffix when environmental compliance requires absence of brominated flame retardants |
| SMAJ6.0AHE3_A/I | AEC-Q101 qualified, same VBR/VC/PPPM, but with automotive-grade screening and traceability | Required for automotive OEM designs needing PPAP documentation and extended temperature validation | Specify HE3 suffix for automotive applications requiring qualification to AEC-Q101 Rev D |
Compared with SMAJ6.0A-E3/5A, the M3 variant adds halogen-free construction without altering protection performance, while the HE3 variant delivers full automotive qualification-making the E3 version optimal for cost-sensitive industrial and consumer designs where commercial-grade reliability suffices.
Availability
SMAJ6.0A-E3/5A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and consumer USB port safeguarding requiring stable component supply and tape-and-reel delivery for SMT production.
Supply support for SMAJ6.0A-E3/5A 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 high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where robustness against ISO 7637, IEC 61000-4-5, and ESD events is mandatory.
FAQ
What is the clamping voltage of SMAJ6.0A-E3/5A at its rated peak pulse current?
The SMAJ6.0A-E3/5A exhibits a maximum clamping voltage (VC) of 10.3 V when subjected to its rated peak pulse current (IPPM) of 38.8 A under the standard 10/1000 μs waveform. This value is measured at TA = 25 °C with the device mounted on 0.2" × 0.2" copper pads, and it defines the upper voltage limit imposed on protected circuitry during surge events. The SMAJ6.0A-E3/5A maintains this clamping performance consistently due to its glass-passivated junction and low incremental surge resistance.
Is SMAJ6.0A-E3/5A suitable for automotive applications?
SMAJ6.0A-E3/5A itself is a commercial-grade part, but Vishay offers the functionally identical SMAJ6.0AHE3_A/I variant that is fully AEC-Q101 qualified for automotive use. The SMAJ6.0A-E3/5A shares the same electrical characteristics-including 6.67 V to 7.37 V breakdown voltage, 10.3 V clamping, and 400 W pulse rating-but lacks the extended temperature validation and PPAP documentation required for OEM automotive deployment. For non-safety-critical aftermarket or industrial vehicle systems, SMAJ6.0A-E3/5A may be used with appropriate system-level validation.
What does the "E3/5A" suffix indicate in SMAJ6.0A-E3/5A?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "/5A" specifies packaging in 13-inch diameter plastic tape and reel containing 7500 units. This format meets J-STD-002 solderability standards and supports high-speed automated placement. The SMAJ6.0A-E3/5A is not halogen-free (that requires M3) nor AEC-Q101 qualified (that requires HE3 or HM3), distinguishing it from other ordering variants within the same SMAJ6.0A family.
How does SMAJ6.0A-E3/5A compare to SMAJ5.0A in terms of voltage ratings?
SMAJ6.0A-E3/5A has a higher stand-off voltage (VWM = 6.0 V) and breakdown range (6.67–7.37 V) than SMAJ5.0A (VWM = 5.0 V, VBR = 6.40–7.07 V), making it better suited for 6 V nominal systems where tighter margin above operating voltage is needed. Both share identical 400 W peak pulse power and SMA package, but SMAJ6.0A-E3/5A's higher VWM reduces leakage current in 5.5–6.0 V applications and improves noise immunity. Clamping voltage rises slightly to 10.3 V vs. 9.2 V for SMAJ5.0A, reflecting the trade-off between stand-off headroom and clamping level.
Can SMAJ6.0A-E3/5A be used in bidirectional configurations?
No-SMAJ6.0A-E3/5A is strictly unidirectional, as indicated by the "A" suffix and cathode band marking. Bidirectional variants carry the "CA" suffix (e.g., SMAJ6.0CA) and lack polarity markings. Using SMAJ6.0A-E3/5A in reverse-biased AC signal paths would result in forward conduction during negative half-cycles, causing failure. For bidirectional protection, select SMAJ6.0CA or confirm polarity alignment in DC-only applications where the cathode connects to the more positive node.
SMAJ6.0A-E3/5A 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-E3/5A FAQ
1.How can I place an order for SMAJ6.0A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0A-E3/5A 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-E3/5A reliable?
The price and inventory of SMAJ6.0A-E3/5A 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-E3/5A is usually 5 days.
3.What payment methods are accepted for SMAJ6.0A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0A-E3/5A?
SMAJ6.0A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0A-E3/5A 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-E3/5A?
For technical support, including SMAJ6.0A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0A-E3/5A requirements.
6.How does Aetrix verify that SMAJ6.0A-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0A-E3/5A 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-E3/5A meets industry standards.
7.What is the process for return or replacement of SMAJ6.0A-E3/5A?
All SMAJ6.0A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0A-E3/5A, 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-E3/5A part is unused and in its original packaging.
Return procedure for SMAJ6.0A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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