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Vishay General Semiconductor - Diodes Division SMAJ6.0CA-E3/61
- Part No.:
- SMAJ6.0CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0CA-E3/61.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,848
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Product details
Overview
SMAJ6.0CA-E3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping ESD and surge transients on signal/power lines. It features 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 current - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMAJ6.0CA-E3/61 datasheet, SMAJ6.0CA-E3/61 pinout, SMAJ6.0CA-E3/61 application, or SMAJ6.0CA-E3/61 equivalent, key selection criteria include bidirectional clamping symmetry, low clamping voltage under 40 A surge, RoHS-compliant commercial-grade packaging, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR min/max (6.67–7.37 V), ID ≤800 μA at VWM, and VC = 10.3 V at IPPM = 38.8 A. Its glass-passivated junction ensures stable leakage and fast response (<1 ns), while MSL Level 1 rating supports lead-free reflow up to 260 °C.
The device complies with ANSI/IEEE C62.35 for surge suppression and meets UL 497B recognition (QVGQ2). Thermal resistance is RθJA = 120 °C/W and RθJL = 30 °C/W, enabling operation from –55 °C to +150 °C junction temperature with 3.3 W steady-state power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 6.67 V / 7.37 V at 10 mA - guaranteed breakdown threshold range for reliable turn-on |
| VC @ IPPM | 10.3 V at 38.8 A - clamped voltage during 10/1000 μs surge, limiting stress on downstream ICs |
| PPPM | 400 W - peak pulse power handling capability under standard lightning-surge waveform |
| ID @ VWM | ≤800 μA - low leakage ensures minimal standby power loss in battery-powered systems |
| Package | SMA (DO-214AC) - surface-mount outline with 5.28 mm length, compatible with JEDEC-standard pick-and-place |
| TJ max. | +150 °C - enables use in under-hood automotive and high-temperature industrial environments |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads; polarity-unmarked for bidirectional operation; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Terminal 1) | Transient return path (bidirectional) | No polarity marking; either terminal serves as reference for symmetrical clamping |
| Anode (Terminal 2) | Transient return path (bidirectional) | Identical electrical behavior to Terminal 1; no functional distinction in CA devices |
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 mm × 50 mm PCB copper |
| Low clamping voltage (10.3 V) | Protects 5 V logic and microcontrollers with margin below absolute maximum ratings |
| MSL Level 1 | Supports standard lead-free reflow profiles without baking or special handling |
| AEC-Q101 qualified option | HE3 suffix variant available for automotive applications requiring qualification evidence |
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 clamping element placed between connector and interface IC to shunt transients before they reach sensitive pins. Use Value: Limits induced voltage to ≤10.3 V during 38.8 A surge, preserving signal integrity and preventing latch-up in 5 V automotive MCUs. | Use Scenario: Shielding digital input modules in programmable logic controllers from inductive switching spikes on 24 V DC field wiring. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at DIN-rail terminal block entry point. Use Value: Absorbs 400 W transient energy without degradation, maintaining >10⁵ surge cycles per IEC 61000-4-5. |
| Consumer USB Port ESD Protection | Telecom Line Interface Protection |
Use Scenario: Safeguarding USB 2.0 data lines (D+/D−) against human-body-model (HBM) ESD events in set-top boxes and docking stations. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at USB connector, referenced to common-mode ground. Use Value: Sub-1 ns response time clamps ±8 kV HBM discharges to <12 V, preventing data corruption and PHY damage. | Use Scenario: Protecting RS-485 transceiver inputs in base station backhaul equipment exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage protector in multi-level defense scheme, coordinated with GDT and series impedance. Use Value: Symmetrical 6.0 V standoff allows balanced differential line protection without bias network complexity. |
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-M3/61 | Halogen-free, RoHS-compliant variant with identical electrical specs and thermal performance | Required where halogen-free compliance is mandated by OEM environmental policy | Select when material content restrictions apply; same footprint and assembly process |
| SMAJ6.0AHE3_A/H | AEC-Q101 qualified version with enhanced reliability testing and traceable automotive lot control | Targeted at automotive ECUs, body control modules, and ADAS sensor nodes requiring qualification evidence | Choose for automotive production programs needing PPAP documentation and extended temperature validation |
Compared with SMAJ6.0CA-E3/61, the M3 variant adds halogen-free compliance without electrical trade-offs, while the HE3 variant delivers automotive-grade qualification at the cost of higher unit price and longer lead times - select based on end-equipment regulatory and reliability requirements.
Availability
SMAJ6.0CA-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, consumer USB port hardening, and telecom line interface designs requiring stable component supply and consistent surge performance across production batches.
Supply support for SMAJ6.0CA-E3/61 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, precision, and application-specific optimization.
The SMAJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where repeatable clamping performance and long-term stability under surge stress are critical.
FAQ
What is the clamping voltage of SMAJ6.0CA-E3/61 at its rated peak pulse current?
The SMAJ6.0CA-E3/61 clamps to a maximum of 10.3 V at its rated peak pulse current of 38.8 A under the standardized 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and verified across production lots. The low clamping voltage ensures downstream 5 V ICs remain within safe operating limits during surge events. SMAJ6.0CA-E3/61 achieves this with minimal incremental surge resistance and fast junction response.
Is SMAJ6.0CA-E3/61 suitable for bidirectional signal lines like RS-485 or CAN bus?
Yes, SMAJ6.0CA-E3/61 is explicitly designed for bidirectional use, as indicated by the "CA" suffix. Its symmetrical VBR (6.67–7.37 V) and VC characteristics in both polarities make it ideal for protecting differential buses such as RS-485, CAN, and LIN. No external biasing or polarity alignment is needed. SMAJ6.0CA-E3/61 maintains matched clamping behavior across terminals, simplifying layout for balanced line protection.
Does SMAJ6.0CA-E3/61 meet automotive qualification standards?
The base SMAJ6.0CA-E3/61 is commercial-grade and RoHS-compliant but not AEC-Q101 qualified. However, the pin-compatible variant SMAJ6.0CAHE3_A/H is fully AEC-Q101 qualified and shares identical electrical parameters. For automotive production, specify the HE3 suffix. SMAJ6.0CA-E3/61 itself is widely used in non-safety-critical automotive subsystems where qualification is not mandated.
What is the thermal resistance and maximum junction temperature of SMAJ6.0CA-E3/61?
SMAJ6.0CA-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead resistance (RθJL) of 30 °C/W, measured on 0.2" × 0.2" copper pads. Its maximum operating junction temperature is +150 °C, supporting deployment in under-hood and industrial enclosures. Derating curves in the datasheet (Fig. 2) define safe power limits above 25 °C ambient. SMAJ6.0CA-E3/61 maintains full 400 W pulse rating only at TA ≤ 25 °C.
How does the leakage current of SMAJ6.0CA-E3/61 affect low-power system design?
At its 6.0 V stand-off voltage (VWM), SMAJ6.0CA-E3/61 exhibits a maximum reverse leakage current (ID) of 800 μA - measured at 25 °C and specified per datasheet Table on page 2. This low leakage avoids significant battery drain in always-on sensor nodes or IoT edge devices. Leakage remains below 2 μA at 5.0 V, making SMAJ6.0CA-E3/61 suitable for energy-constrained applications where standby current budgets are tight. SMAJ6.0CA-E3/61 leakage is stable over temperature and time due to glass-passivated junction construction.
SMAJ6.0CA-E3/61 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):
- 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-E3/61 FAQ
1.How can I place an order for SMAJ6.0CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0CA-E3/61 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 SMAJ6.0CA-E3/61 reliable?
The price and inventory of SMAJ6.0CA-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ6.0CA-E3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ6.0CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0CA-E3/61?
SMAJ6.0CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0CA-E3/61 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 SMAJ6.0CA-E3/61?
For technical support, including SMAJ6.0CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0CA-E3/61 requirements.
6.How does Aetrix verify that SMAJ6.0CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0CA-E3/61 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 SMAJ6.0CA-E3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ6.0CA-E3/61?
All SMAJ6.0CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0CA-E3/61, 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 SMAJ6.0CA-E3/61 part is unused and in its original packaging.
Return procedure for SMAJ6.0CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ6.0CA-E3/61 Tags
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