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Vishay General Semiconductor - Diodes Division SMAJ6.0CAHM3_A/I
- Part No.:
- SMAJ6.0CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0CAHM3_A/I.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,882
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Product details
Overview
SMAJ6.0CAHM3_A/I 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, industrial I/O protection, and USB/RS-485 line guarding.
For engineers reviewing the SMAJ6.0CAHM3_A/I datasheet, SMAJ6.0CAHM3_A/I pinout, SMAJ6.0CAHM3_A/I application, or SMAJ6.0CAHM3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, MSL Level 1 moisture sensitivity, halogen-free RoHS compliance, and compatibility with 0.2" × 0.2" copper pad thermal layout per JEDEC standards.
Technical Context
This device operates as a voltage-clamped crowbar during transient events: when reverse voltage exceeds VBR (6.67–7.37 V), it avalanches rapidly (<1 ns response) to divert surge current away from protected circuitry. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity dependency in AC-coupled or floating signal paths.
Thermally, it sustains 3.3 W steady-state dissipation at TA = 50 °C with RθJA = 120 °C/W and RθJL = 30 °C/W, enabling reliable operation up to TJ = 150 °C. The glass-passivated junction and matte tin-plated leads meet J-STD-002 solderability and JESD22-B102 whisker resistance Class 2 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum continuous reverse operating voltage before significant leakage; defines safe DC/AC signal swing margin. |
| VBR (min/max) | 6.67 V / 7.37 V at IT = 10 mA - guaranteed avalanche initiation range; sets precise overvoltage trip threshold. |
| VC @ IPPM | 10.3 V at 38.8 A - clamped voltage under 10/1000 μs surge; determines worst-case stress on downstream ICs. |
| PPPM | 400 W - peak pulse power handling (10/1000 μs waveform); supports robust protection against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | 800 μA - maximum reverse leakage at 6.0 V; low enough to avoid signal integrity degradation in high-impedance nodes. |
| TJ max. | +150 °C - maximum junction temperature; enables use in under-hood automotive and industrial environments. |
| Package | SMA (DO-214AC) - surface-mount, low-profile package compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads; no polarity marking for bidirectional configuration; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | One terminal of symmetrical PN junction; accepts surge current in either direction during overvoltage events. |
| Cathode | Transient current exit (bidirectional) | Second terminal of symmetrical PN junction; completes low-impedance path to ground or return rail during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for EU, China RoHS, and JEITA standards without compromising surge performance. |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 4th-level surge immunity testing with minimal PCB footprint. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow assembly without pre-baking or special handling. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ESD, inductive switching). |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role: Bidirectional voltage clamp placed across differential signal pair or supply-to-ground. Use Value: Limits transient voltage to ≤10.3 V, preventing latch-up or gate oxide damage in 5 V-tolerant transceivers. |
Use Scenario: Guarding RS-485 transceiver inputs/outputs against ESD (IEC 61000-4-2 ±15 kV) and lightning-induced surges. IC Role / Device Role: Line-to-line and line-to-ground TVS on A/B bus terminals and VCC/GND rails. Use Value: Clamps 38.8 A surge within nanoseconds while maintaining <800 μA leakage at 6.0 V standby. |
| USB 2.0 Data Line Protection | Smart Meter Communication Port |
Use Scenario: Safeguarding D+/D− lines of embedded USB peripherals against human-body-model ESD events. IC Role / Device Role: Bidirectional TVS placed differentially between data lines and common-mode to GND. Use Value: Low capacitance (typ. 350 pF at 0 V) avoids signal integrity loss at 480 Mbps full-speed operation. |
Use Scenario: Securing PLC or RF module interfaces in utility smart meters exposed to grid-switching transients. IC Role / Device Role: Primary surge suppression on HART/modem signal lines and auxiliary power inputs. Use Value: Withstands repetitive 400 W surges and operates continuously from –55 °C to +125 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0CAHE3_A/I | Same electrical specs but RoHS-compliant commercial grade (non-halogen-free); lacks halogen-free certification. | Approved for non-automotive industrial/commercial use where halogen-free mandate does not apply. | Select when halogen-free requirement is waived and cost optimization is prioritized. |
| SMAJ6.0CAHM3_A/H | Identical specifications and construction, but supplied in 7" tape-and-reel (1800 pcs) instead of 13" reel (7500 pcs). | Suitable for low-volume prototyping or small-batch production with limited reel storage space. | Choose for evaluation kits or pilot runs where smaller reel quantity reduces inventory overhead. |
Compared with SMAJ6.0CAHE3_A/I and SMAJ6.0CAHM3_A/H, the SMAJ6.0CAHM3_A/I offers halogen-free compliance in high-volume 13" reel packaging - critical for automotive Tier 1 suppliers requiring full material declarations and extended production continuity.
Availability
SMAJ6.0CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial communication ports, and consumer USB protection requiring stable component supply across multi-year production cycles.
Supply support for SMAJ6.0CAHM3_A/I 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 validation.
The SMAJ series targets board-level transient suppression in harsh environments - engineered for AEC-Q101 compliance, high surge robustness, and seamless integration into automotive, industrial, and telecom infrastructure designs.
FAQ
What is the clamping voltage of SMAJ6.0CAHM3_A/I at its rated peak pulse current?
The SMAJ6.0CAHM3_A/I clamps to a maximum of 10.3 V at its specified peak pulse current of 38.8 A under a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 test conditions and guarantees protection of downstream 5 V logic circuits without exceeding their absolute maximum ratings. The SMAJ6.0CAHM3_A/I achieves this with low dynamic impedance and sub-nanosecond response time.
Is SMAJ6.0CAHM3_A/I qualified for automotive applications?
Yes, SMAJ6.0CAHM3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation in datasheet 88390. It is specifically intended for automotive use cases including sensor interfaces, body control modules, and infotainment system I/O protection - validated for temperature cycling, humidity bias, and mechanical shock per AEC-Q101 stress test requirements.
Does SMAJ6.0CAHM3_A/I have polarity markings on the package?
No, SMAJ6.0CAHM3_A/I has no polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., SMAJ6.0A), the SMAJ6.0CAHM3_A/I uses a symmetrical junction structure - both terminals function identically regardless of voltage polarity. This eliminates orientation errors during automated placement and simplifies layout for AC-coupled or floating signal lines.
What is the maximum steady-state power dissipation for SMAJ6.0CAHM3_A/I?
The SMAJ6.0CAHM3_A/I has a maximum steady-state power dissipation (PD) of 3.3 W at TA = 50 °C, based on thermal resistance RθJA = 120 °C/W. This rating assumes mounting on recommended 0.2" × 0.2" copper pads per JEDEC standards. Derating is required above 50 °C ambient, with full derating to zero power at TJ = 150 °C.
How does the halogen-free status of SMAJ6.0CAHM3_A/I impact compliance?
The "HM3" suffix in SMAJ6.0CAHM3_A/I denotes halogen-free, RoHS-compliant construction per JEITA EG-02 and IEC 61249-2-21 standards. This ensures bromine/chlorine content <900 ppm and antimony <900 ppm - satisfying strict environmental mandates for automotive OEMs and EU-based industrial equipment manufacturers without sacrificing surge performance or thermal reliability.
SMAJ6.0CAHM3_A/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ6.0CAHM3_A/I FAQ
1.How can I place an order for SMAJ6.0CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0CAHM3_A/I 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 SMAJ6.0CAHM3_A/I reliable?
The price and inventory of SMAJ6.0CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ6.0CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMAJ6.0CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0CAHM3_A/I?
SMAJ6.0CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0CAHM3_A/I 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 SMAJ6.0CAHM3_A/I?
For technical support, including SMAJ6.0CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0CAHM3_A/I requirements.
6.How does Aetrix verify that SMAJ6.0CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0CAHM3_A/I 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 SMAJ6.0CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMAJ6.0CAHM3_A/I?
All SMAJ6.0CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0CAHM3_A/I, 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 SMAJ6.0CAHM3_A/I part is unused and in its original packaging.
Return procedure for SMAJ6.0CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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