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Vishay General Semiconductor - Diodes Division SMCJ6.0CAHM3/I
- Part No.:
- SMCJ6.0CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.0CAHM3/I.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,346
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Product details
Overview
SMCJ6.0CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 6.0 V stand-off voltage (VWM), 1500 W peak pulse power rating (10/1000 µs), and clamps transients to ≤10.3 V at 145.6 A peak surge current - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMCJ6.0CAHM3/I datasheet, SMCJ6.0CAHM3/I pinout, SMCJ6.0CAHM3/I application, or SMCJ6.0CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, and compatibility with 8.0 mm × 8.0 mm copper pad layouts per JEDEC standards.
Technical Context
This TVS diode operates symmetrically in both polarities due to its bidirectional construction, enabling protection against voltage reversals without polarity sensitivity. Its glass-passivated junction ensures stable breakdown behavior under repetitive surge stress, while low incremental surge resistance supports rapid energy dissipation during fast transients like ESD or inductive switching spikes.
The device meets MSL Level 1 per J-STD-020 with a maximum reflow peak temperature of 260 °C and is qualified to AEC-Q101 for automotive use. Its thermal resistance (RθJA = 75 °C/W) and junction temperature range (–55 °C to +150 °C) support reliable operation in high-ambient environments such as engine control modules and motor drive boards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum continuous reverse operating voltage before clamping begins; sets threshold for protection activation on 5 V–6 V systems. |
| VBR min/max | 6.67 V / 7.37 V at 10 mA - Confirmed breakdown voltage window ensures consistent turn-on across production lots. |
| VC @ IPPM | ≤10.3 V at 145.6 A - Clamping voltage limits downstream IC stress during worst-case 1500 W surges (10/1000 µs). |
| PPPM | 1500 W - Peak pulse power handling capacity validated per IEC 61000-4-5 Level 4 surge immunity requirements. |
| ID @ VWM | ≤1000 µA - Low leakage preserves signal integrity and minimizes standby power loss in always-on circuits. |
| TJ max | +150 °C - Enables deployment in under-hood automotive locations and industrial enclosures without derating. |
| Package | SMC (DO-214AB) - Surface-mount outline with 8.0 mm × 8.0 mm thermal pad footprint for optimal PCB heat spreading. |
Pinout & Package
SMCJ6.0CAHM3/I uses the SMC (DO-214AB) package: a surface-mount, molded plastic case with two terminals and no polarity marking (bidirectional). The device has no cathode/anode designation; both terminals are functionally identical for transient suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (symmetrical) | Interchangeable connection point; connects to protected line (e.g., CAN_H or power rail) with no polarity constraint. |
| Terminal 2 | Anode/Cathode (symmetrical) | Interchangeable connection point; ties to reference plane (e.g., ground or complementary signal line) for bidirectional clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal paths (e.g., RS-485, CAN FD) without external polarity management. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for ECU, ADAS, and body control modules. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declarations; supports green manufacturing and end-of-life recycling compliance. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection margin for sub-20 V logic and analog front-ends. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profile usage (peak 260 °C), eliminating bake-out requirements in high-volume SMT assembly. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-supplied microcontrollers and CAN transceivers from load dump and jump-start surges. IC Role / Device Role / Timing Role: Bidirectional TVS placed between power rail and chassis ground to clamp ±300 V transients within 1 ns. Use Value: Limits voltage seen by downstream LDOs and MCU I/O to ≤10.3 V, preventing latch-up and permanent damage per ISO 7637-2 Pulse 5a. | Use Scenario: Shielding 4–20 mA current loop inputs and analog sensor outputs (e.g., pressure, temperature) from ESD and field wiring faults. IC Role / Device Role / Timing Role: Placed across differential pair or signal-to-ground to absorb ±15 kV contact ESD (IEC 61000-4-2) and inductive kickback. Use Value: Maintains signal fidelity below 10.3 V clamping level while supporting <1000 µA leakage - critical for precision 16-bit ADC front-ends. |
| Telecom Line Interface Protection | Consumer USB Port Surge Suppression |
Use Scenario: Safeguarding Ethernet PHYs and PoE injectors against lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Installed on each data line (e.g., TX+/TX−) referenced to local ground, leveraging symmetrical clamping for common-mode transients. Use Value: Handles 1500 W peak power per line without degradation, meeting GR-1089-CORE Level 3 telecom surge immunity requirements. | Use Scenario: Adding secondary-level surge protection to USB 2.0 D+ and D− lines in portable chargers and docking stations. IC Role / Device Role / Timing Role: Bidirectional TVS placed differentially across data lines to suppress ±8 kV ESD and cable discharge events. Use Value: Provides sub-10.3 V clamping with <10 pF junction capacitance (typ.) - avoids signal integrity loss at 480 Mbps full-speed USB operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0CAHE3/A | Lower PPPM (400 W), SMA package (smaller thermal mass), same VWM and bidirectional structure. | Suitable only for lower-energy threats (e.g., IEC 61000-4-2 ESD); not rated for ISO 7637-2 load dump. | Select when board space is constrained and surge threat level is limited to human-body-model ESD. |
| SMCJ6.0CA-E3/57T | Same electrical specs and SMC package, but commercial-grade (non-AEC-Q101) and RoHS-compliant (not halogen-free). | Lacks automotive qualification; acceptable for industrial or consumer designs where AEC-Q101 is not mandated. | Choose for cost-sensitive non-automotive applications requiring identical clamping performance and thermal layout. |
Compared with SMAJ6.0CAHE3/A and SMCJ6.0CA-E3/57T, the SMCJ6.0CAHM3/I uniquely combines 1500 W surge capability, AEC-Q101 qualification, and halogen-free construction - making it the only option qualified for high-reliability automotive power domain protection with full load-dump immunity.
Availability
SMCJ6.0CAHM3/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor nodes, telecom infrastructure interfaces, and consumer USB power delivery systems requiring stable component supply and long-term lifecycle assurance.
Supply support for SMCJ6.0CAHM3/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 optimization.
The SMCJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness against load dump, ESD, and lightning surges is mandatory.
FAQ
What does the "HM3" suffix indicate in SMCJ6.0CAHM3/I?
The "HM3" suffix in SMCJ6.0CAHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It confirms compliance with IPC-1752A material declarations and automotive reliability testing including temperature cycling and mechanical shock - distinguishing it from commercial-grade variants like SMCJ6.0CA-E3/57T. This makes SMCJ6.0CAHM3/I suitable for under-hood automotive deployments where regulatory and environmental requirements are strict.
Is SMCJ6.0CAHM3/I pin-compatible with unidirectional SMCJ6.0A variants?
No - SMCJ6.0CAHM3/I is bidirectional and lacks polarity marking, whereas unidirectional SMCJ6.0A variants feature a cathode band and asymmetric clamping behavior. While both share the same SMC (DO-214AB) package footprint and solder pad layout, their circuit roles differ fundamentally: SMCJ6.0CAHM3/I protects AC or differential signals, while SMCJ6.0A is intended for DC rail protection with defined anode/cathode orientation. Interchanging them without schematic review risks ineffective protection.
What is the maximum clamping voltage of SMCJ6.0CAHM3/I under full-rated surge conditions?
The maximum clamping voltage (VC) of SMCJ6.0CAHM3/I is 10.3 V when subjected to its rated 145.6 A peak pulse current (IPPM) using a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range (–55 °C to +150 °C) and defines the upper voltage limit imposed on protected circuitry during worst-case transients - critical for ensuring compatibility with 3.3 V or 5 V logic interfaces downstream.
Does SMCJ6.0CAHM3/I require derating at elevated ambient temperatures?
Yes - SMCJ6.0CAHM3/I must be derated above TA = 25 °C per Figure 2 in the Vishay datasheet (Doc. #88394). At 85 °C ambient, its peak pulse power drops to approximately 850 W (57% of 1500 W rating), and at 125 °C, it falls to ~450 W. Designers must apply this derating when sizing protection for high-temperature zones such as engine compartments or enclosed industrial drives to maintain safe clamping margins.
Can SMCJ6.0CAHM3/I be used in parallel to increase surge current handling?
No - SMCJ6.0CAHM3/I is not recommended for parallel operation due to mismatch in dynamic impedance and breakdown voltage tolerance (±7.5% VBR). Uneven current sharing can cause one device to absorb disproportionate surge energy, leading to premature failure. For higher current needs, select a higher-rated part (e.g., SMCJ10CAHM3/I) or implement staged protection with upstream fusing and coordinated TVS placement - not parallel TVS diodes.
SMCJ6.0CAHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 145.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMC)
SMCJ6.0CAHM3/I FAQ
1.How can I place an order for SMCJ6.0CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.0CAHM3/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 SMCJ6.0CAHM3/I reliable?
The price and inventory of SMCJ6.0CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ6.0CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMCJ6.0CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.0CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.0CAHM3/I?
SMCJ6.0CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.0CAHM3/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 SMCJ6.0CAHM3/I?
For technical support, including SMCJ6.0CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.0CAHM3/I requirements.
6.How does Aetrix verify that SMCJ6.0CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ6.0CAHM3/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 SMCJ6.0CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMCJ6.0CAHM3/I?
All SMCJ6.0CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.0CAHM3/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 SMCJ6.0CAHM3/I part is unused and in its original packaging.
Return procedure for SMCJ6.0CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ6.0CAHM3/I Tags
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