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Vishay General Semiconductor - Diodes Division SMAJ6.0CA-E3/5A
- Part No.:
- SMAJ6.0CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0CA-E3/5A.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,054
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Product details
Overview
SMAJ6.0CA-E3/5A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal and power lines. 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), and clamps to ≤10.3 V at 38.8 A peak surge current - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMAJ6.0CA-E3/5A datasheet, SMAJ6.0CA-E3/5A pinout, SMAJ6.0CA-E3/5A application, or SMAJ6.0CA-E3/5A equivalent, key selection criteria include bidirectional clamping capability, 10.3 V max clamping voltage at rated IPPM, AEC-Q101 qualification eligibility (via HE3 suffix variants), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR min/max (6.67–7.37 V), ID ≤800 μA at VWM = 6.0 V, and thermal resistance RθJA = 120 °C/W. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for suppressing ESD and inductive switching spikes.
The device complies with ANSI/IEEE C62.35 for surge protection, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and supports repetitive surge duty cycle ≤0.01%. Clamping performance is specified under standardized 10/1000 μs waveform testing with derating above TA = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 6.67 V / 7.37 V at IT = 10 mA - ensures reliable breakdown onset within tight tolerance band |
| VC @ IPPM | ≤10.3 V at IPPM = 38.8 A - defines worst-case clamped voltage during 400 W transient |
| PPPM | 400 W (10/1000 μs) - peak surge power handling capacity for short-duration transients |
| ID @ VWM | ≤800 μA - low leakage preserves signal integrity and minimizes standby power loss |
| TJ max. | +150 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| Package | SMA (DO-214AC) - surface-mount outline with 0.208" x 0.157" footprint and matte tin-plated leads |
Pinout & Package
Package: SMA (DO-214AC), molded epoxy case meeting UL 94 V-0 flammability rating; terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102; bidirectional types have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | One terminal of symmetrical junction; accepts surge current in either direction |
| Cathode | Transient current entry (negative half-cycle) | Second terminal of symmetrical junction; completes bidirectional conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 400 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 50 Ω source impedance lines |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes overvoltage stress on downstream ICs such as CAN transceivers or ADC front-ends |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without preconditioning or baking |
| AEC-Q101 qualification option | HE3/HM3 variants available for automotive applications requiring stress-tested reliability |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., temperature, pressure) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between sensor output and microcontroller input pin. Use Value: Limits transient voltage to ≤10.3 V, preventing latch-up or gate oxide damage in 3.3 V/5 V MCUs. |
Use Scenario: Shielding PLC digital input channels from inductive kickback when switching solenoids or relays. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing energy from 100–500 mJ transients on 24 V DC inputs. Use Value: Maintains system uptime by preventing false triggering or permanent damage to optocoupler input stages. |
| USB Port ESD Protection | Telecom Line Interface |
Use Scenario: Safeguarding USB 2.0 D+/D− lines against ±15 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed directly at connector pins. Use Value: Achieves <1 ns response with <0.5 pF junction capacitance (typ.) - preserves signal integrity up to 480 Mbps. |
Use Scenario: Protecting RS-485 transceiver inputs in base station backhaul links exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on differential pair prior to common-mode choke and receiver IC. Use Value: Handles 400 W surges while maintaining differential mode symmetry and minimizing skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0CA-M3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and package | No functional difference; selected where halogen-free compliance is mandated (e.g., EU industrial equipment) | Direct material substitution when halogen-free bill-of-materials is required |
| SMAJ6.0A-E3/5A | Unidirectional version - cathode-marked, asymmetric IV curve, VF = 3.5 V at 25 A | Only suitable for DC-biased lines with known polarity; cannot protect AC or floating nodes | Choose only if circuit topology guarantees unidirectional surge direction and polarity stability |
Compared with SMAJ6.0CA-E3/5A, the M3 variant offers identical protection performance with halogen-free construction, while the unidirectional SMAJ6.0A-E3/5A requires strict polarity control and lacks symmetrical clamping - making SMAJ6.0CA-E3/5A the preferred choice for generic bidirectional line protection.
Availability
SMAJ6.0CA-E3/5A is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface designs requiring stable component supply and long-term production continuity.
Supply support for SMAJ6.0CA-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 targets board-level transient suppression in harsh environments - engineered for robustness against ESD, EFT, and surge events per IEC, ISO, and AEC standards.
FAQ
What is the clamping voltage of SMAJ6.0CA-E3/5A at its rated peak pulse current?
The SMAJ6.0CA-E3/5A clamps to a maximum of 10.3 V when subjected to its rated peak pulse current of 38.8 A (10/1000 μs waveform). This value is measured under standard test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during a 400 W transient event. The SMAJ6.0CA-E3/5A maintains this clamping performance bidirectionally.
Is SMAJ6.0CA-E3/5A suitable for automotive applications?
SMAJ6.0CA-E3/5A itself is commercial-grade, but Vishay offers AEC-Q101 qualified versions under ordering codes SMAJ6.0CAHE3_X (RoHS + AEC-Q101) and SMAJ6.0CAHM3_X (halogen-free + AEC-Q101). These variants undergo stress testing per automotive reliability standards and are approved for use in engine control units, body electronics, and ADAS sensor interfaces. The SMAJ6.0CA-E3/5A base part is not AEC-Q101 certified.
How does SMAJ6.0CA-E3/5A differ from SMAJ6.0A-E3/5A?
SMAJ6.0CA-E3/5A is bidirectional with symmetrical clamping in both directions and no polarity marking, whereas SMAJ6.0A-E3/5A is unidirectional, marked with a cathode band, and exhibits forward conduction (VF = 3.5 V at 25 A). The SMAJ6.0CA-E3/5A is appropriate for AC, floating, or polarity-agnostic lines; SMAJ6.0A-E3/5A applies only to DC circuits with fixed polarity. Their VWM, VBR, and PPPM ratings are otherwise identical.
What is the thermal resistance of SMAJ6.0CA-E3/5A, and how does it affect PCB layout?
SMAJ6.0CA-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on minimum recommended pad layout, and 30 °C/W junction-to-lead (RθJL). To sustain repeated surges, PCB design must use 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal as specified in the datasheet. Reducing pad area increases thermal impedance and risks thermal runaway during high-duty-cycle events. The SMAJ6.0CA-E3/5A relies on copper mass, not heatsinks, for thermal dissipation.
Does SMAJ6.0CA-E3/5A meet moisture sensitivity level requirements for lead-free reflow?
Yes, SMAJ6.0CA-E3/5A meets MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30 °C/85 % RH and withstand lead-free reflow profiles with peak temperatures up to 260 °C without preconditioning or baking. This eliminates moisture-related popcorning risk and simplifies SMT manufacturing flow. The SMAJ6.0CA-E3/5A's molding compound and terminations are fully qualified for standard industry reflow processes.
SMAJ6.0CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMAJ6.0CA-E3/5A FAQ
1.How can I place an order for SMAJ6.0CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0CA-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 SMAJ6.0CA-E3/5A reliable?
The price and inventory of SMAJ6.0CA-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 SMAJ6.0CA-E3/5A is usually 5 days.
3.What payment methods are accepted for SMAJ6.0CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0CA-E3/5A?
SMAJ6.0CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0CA-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 SMAJ6.0CA-E3/5A?
For technical support, including SMAJ6.0CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0CA-E3/5A requirements.
6.How does Aetrix verify that SMAJ6.0CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0CA-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 SMAJ6.0CA-E3/5A meets industry standards.
7.What is the process for return or replacement of SMAJ6.0CA-E3/5A?
All SMAJ6.0CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0CA-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 SMAJ6.0CA-E3/5A part is unused and in its original packaging.
Return procedure for SMAJ6.0CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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