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Vishay General Semiconductor - Diodes Division SMCJ6.0CAHM3/H
- Part No.:
- SMCJ6.0CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.0CAHM3/H.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,693
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Product details
Overview
SMCJ6.0CAHM3/H 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), 6.67–7.37 V breakdown voltage (VBR) at 10 mA, 1500 W peak pulse power (10/1000 µs), and clamps to ≤10.3 V at 145.6 A IPPM - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMCJ6.0CAHM3/H datasheet, SMCJ6.0CAHM3/H pinout, SMCJ6.0CAHM3/H application, or SMCJ6.0CAHM3/H 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 device operates as a voltage-clamping protector using an avalanche junction, responding within <1 ps to transients induced by inductive switching or ESD events. Its bidirectional symmetry ensures identical electrical behavior in both polarities, eliminating polarity-dependent design constraints in AC-coupled or floating signal paths.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = +150 °C. The SMCJ6.0CAHM3/H meets MSL Level 1 per J-STD-020 and supports lead-free reflow up to 260 °C peak temperature.
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 predictable turn-on threshold across production lot |
| VC @ IPPM | ≤10.3 V at 145.6 A - Limits downstream voltage stress during 10/1000 µs surge events |
| PPPM | 1500 W - Sustains high-energy transients without failure under standard waveform conditions |
| ID @ VWM | ≤1000 µA - Low leakage preserves signal integrity and minimizes standby power loss |
| TJ max | +150 °C - Supports under-hood automotive and high-ambient industrial environments |
| Package | SMC (DO-214AB) - Surface-mount footprint compatible with automated placement and IPC-7351B land patterns |
Pinout & Package
SMCJ6.0CAHM3/H uses the SMC (DO-214AB) package: a surface-mount, molded plastic case with two unmarked terminals (bidirectional configuration has no polarity marking). Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H), with 3.20 mm minimum terminal length and 0.76 mm terminal thickness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; one side of symmetrical clamping path | Connected to protected line; forms half of bidirectional conduction path |
| Cathode | Current exit point in forward bias; other side of symmetrical clamping path | Connected to reference plane (e.g., ground or return); completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Halogen-free & RoHS-compliant | Meets IEC 61249-2-21 and JEDEC J-STD-609A Class 1 requirements for green manufacturing |
| Low incremental surge resistance | Enables tighter clamping voltage margin and reduced energy dissipation during fast transients |
| MSL Level 1 rating | Allows unlimited floor life and compatibility with standard reflow profiles up to 260 °C peak |
| Glass passivated junction | Improves long-term stability and moisture resistance versus epoxy-passivated alternatives |
Applications
| Automotive Body Control Module (BCM) | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and alternator ripple in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed between LIN line and ground, absorbing ±100 V transients per ISO 7637-2 Pulse 5a. Use Value: Maintains signal integrity below 10.3 V clamp while surviving >100,000 surge cycles per AEC-Q101 lifetime requirements. | Use Scenario: Safeguarding CANH/CANL differential pair against ESD and inductive kickback in factory automation PLCs. IC Role / Device Role / Timing Role: Paired SMCJ6.0CAHM3/H devices (one per line) referenced to chassis ground, providing symmetric surge suppression. Use Value: Enables uninterrupted CAN communication during 8 kV contact ESD (IEC 61000-4-2) due to sub-100 ps response and low clamping overshoot. |
| Consumer Appliance Motor Drive | Telecom Power Supply Input |
Use Scenario: Shielding MCU GPIOs and gate drivers from back-EMF spikes generated by brushed DC motors in smart home appliances. IC Role / Device Role / Timing Role: Localized TVS mounted directly at motor connector, shunting transients before reaching control logic. Use Value: Prevents latch-up and firmware resets by limiting transient voltage to ≤10.3 V at 145.6 A, verified per IEC 61000-4-4 EFT testing. | Use Scenario: Front-end protection of 48 V telecom rectifier inputs exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage TVS in cascade with MOV and gas discharge tube, handling initial 1500 W surge energy. Use Value: Provides precise 6.0 V standoff and rapid clamping to protect downstream DC-DC converters without false triggering during normal 48 V rail ripple. |
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/VBR range | Not suitable for 1500 W surge environments; limited to lower-energy signal-line protection | Select when board space is constrained and surge threat level is ≤400 W (e.g., USB data lines) |
| SMCJ6.0CAHE3/H | Same electrical specs and package, but commercial-grade (non-AEC-Q101) and RoHS-compliant without halogen-free certification | Lacks automotive qualification; acceptable for industrial/commercial use where AEC-Q101 is not mandated | Choose for cost-sensitive non-automotive designs requiring identical clamping performance and layout compatibility |
Compared with SMCJ6.0CAHE3/H and SMAJ6.0CAHE3/A, the SMCJ6.0CAHM3/H uniquely combines AEC-Q101 qualification, halogen-free construction, and full 1500 W surge capacity - making it the only option qualified for under-hood automotive deployment with zero compromise on energy handling.
Availability
SMCJ6.0CAHM3/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial fieldbus interfaces, consumer appliance motor controls, and telecom power input stages requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ6.0CAHM3/H 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 was developed to deliver high-power transient suppression in compact surface-mount packages for automotive, industrial, and telecom systems demanding AEC-Q101 compliance and repeatable clamping performance.
FAQ
What does the "HM3" suffix indicate in SMCJ6.0CAHM3/H?
The "HM3" suffix in SMCJ6.0CAHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. The "H" indicates 7-inch tape-and-reel packaging (850 units per reel), and "M3" confirms compliance with JEDEC J-STD-609A Class 1 for halogen-free materials. This distinguishes SMCJ6.0CAHM3/H from commercial variants like SMCJ6.0CAHE3/H and ensures suitability for automotive applications requiring strict material and reliability standards.
Is SMCJ6.0CAHM3/H bidirectional, and how is polarity identified?
Yes, SMCJ6.0CAHM3/H is a bidirectional TVS diode, meaning it provides symmetrical clamping in both polarities - critical for protecting AC-coupled or floating signal lines. Unlike unidirectional versions, it carries no cathode band marking; both terminals are functionally identical. This eliminates orientation errors during assembly and simplifies PCB layout for differential or dual-rail protection schemes using the SMCJ6.0CAHM3/H.
What is the maximum clamping voltage of SMCJ6.0CAHM3/H at its rated surge current?
The maximum clamping voltage (VC) of SMCJ6.0CAHM3/H is 10.3 V when subjected to its peak pulse current (IPPM) of 145.6 A under the standardized 10/1000 µs waveform. This value is guaranteed across temperature and production lots per Vishay's datasheet specification and defines the upper voltage limit imposed on protected circuitry during worst-case surge events - a key parameter used in margin analysis for downstream ICs powered by 5 V or 3.3 V rails.
Can SMCJ6.0CAHM3/H be used in place of unidirectional SMCJ6.0A variants?
No - SMCJ6.0CAHM3/H is strictly bidirectional and cannot replace unidirectional SMCJ6.0A variants in circuits requiring forward conduction (e.g., DC power rail protection with polarity-sensitive biasing). While both share identical VWM and VBR ranges, the unidirectional version conducts in forward bias and blocks in reverse, whereas the SMCJ6.0CAHM3/H clamps equally in both directions. Substitution requires verifying circuit topology, especially regarding DC bias paths and grounding schemes, before deploying SMCJ6.0CAHM3/H.
What PCB layout guidelines apply to SMCJ6.0CAHM3/H for optimal surge performance?
For optimal surge performance, SMCJ6.0CAHM3/H must be mounted on minimum 8.0 mm × 8.0 mm copper pads per terminal, as specified in Vishay's datasheet. Short, wide traces (<5 mm) to protected nodes and low-inductance grounding to a solid plane are essential. Thermal relief should be avoided; full copper connection maximizes heat dissipation and maintains clamping consistency during repetitive surges. These practices ensure the SMCJ6.0CAHM3/H delivers its rated 1500 W PPPM without derating or thermal runaway.
SMCJ6.0CAHM3/H 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/H FAQ
1.How can I place an order for SMCJ6.0CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.0CAHM3/H 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/H reliable?
The price and inventory of SMCJ6.0CAHM3/H 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/H is usually 5 days.
3.What payment methods are accepted for SMCJ6.0CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.0CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.0CAHM3/H?
SMCJ6.0CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.0CAHM3/H 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/H?
For technical support, including SMCJ6.0CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.0CAHM3/H requirements.
6.How does Aetrix verify that SMCJ6.0CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMCJ6.0CAHM3/H 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/H meets industry standards.
7.What is the process for return or replacement of SMCJ6.0CAHM3/H?
All SMCJ6.0CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.0CAHM3/H, 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/H part is unused and in its original packaging.
Return procedure for SMCJ6.0CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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