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Vishay General Semiconductor - Diodes Division SMCJ6.5AHM3_A/I
- Part No.:
- SMCJ6.5AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ6.5AHM3_A/I.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,510
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Product details
Overview
SMCJ6.5AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 6.5 V stand-off voltage, 1500 W peak pulse power rating, and 11.2 V clamping voltage at 133.9 A peak pulse current. It protects sensitive ICs, MOSFETs, and sensor signal lines against inductive switching transients and lightning-induced surges in automotive and industrial power electronics.
For engineers reviewing the SMCJ6.5AHM3_A/I datasheet, SMCJ6.5AHM3_A/I pinout, SMCJ6.5AHM3_A/I application, or SMCJ6.5AHM3_A/I equivalent, key selection criteria include verified unidirectional polarity, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), 75 °C/W junction-to-ambient thermal resistance, and compatibility with automated SMT placement on standard 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below its 6.5 V stand-off voltage (VWM), then rapidly transitions to low-impedance conduction when reverse voltage exceeds its 7.22–7.98 V breakdown range (VBR at 10 mA). Its glass-passivated junction ensures stable avalanche behavior under repetitive 10/1000 μs surge waveforms.
Thermal performance is defined by RθJA = 75 °C/W (on recommended pad layout) and maximum junction temperature of +150 °C. The device meets JESD201 Class 2 whisker resistance and MSL Level 1 per J-STD-020, supporting lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum reverse working voltage before clamping begins; defines safe operating margin for protected circuitry |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - Confirmed breakdown threshold range ensuring reliable turn-on during overvoltage events |
| VC @ IPPM | 11.2 V at 133.9 A - Clamping voltage under full 1500 W surge; determines maximum stress imposed on downstream components |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 μs waveform; enables robust protection against IEC 61000-4-5 Level 4 surges |
| ID @ VWM | 500 μA - Reverse leakage at stand-off voltage; low value minimizes standby power loss in battery-powered systems |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and industrial enclosures |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient on specified 8.0 mm × 8.0 mm copper pads; guides PCB thermal design |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Polarity indicated by cathode band; unidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection point | Connected to protected line; conducts surge current toward ground when reverse-biased beyond VBR |
| Anode (non-banded end) | Cathode-side connection point | Typically tied to system ground or low-impedance return path; completes clamping loop during transient events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| Halogen-free (HM3) | Meets IEC 61249-2-21 requirements; eliminates brominated flame retardants without compromising UL 94 V-0 flammability rating |
| Low incremental surge resistance | Enables tight clamping ratio (VC/VBR ≈ 1.45) and minimal voltage overshoot during fast-rising transients |
| MSL Level 1 | Unlimited floor life at ≤30 °C/60% RH; supports standard SMT assembly without baking preconditioning |
| Glass passivated junction | Provides stable, repeatable avalanche characteristics over lifetime and temperature extremes |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in body control modules against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps transients up to 1500 W while maintaining 6.5 V stand-off to avoid false triggering during normal operation. | Use Scenario: Shielding analog output lines of pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Point-of-entry protection on 4–20 mA current loop outputs exposed to ESD and cable discharge events. Use Value: Limits induced voltage to ≤11.2 V during 133.9 A surge, preserving ADC reference integrity and preventing op-amp saturation. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding AC-DC primary-side rectifier circuits in universal-input wall adapters. IC Role / Device Role / Timing Role: Parallel-connected TVS across bridge rectifier output to absorb differential-mode surges from mains transients. Use Value: Withstands repeated 10/1000 μs surges up to 1500 W without degradation, extending adapter field life. | Use Scenario: Front-end protection for Ethernet PHY interfaces in enterprise switches subjected to lightning-induced surges on PoE lines. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional part used in DC-biased auxiliary power rail protection. Use Value: Provides 11.2 V clamping at full rated current, enabling smaller downstream filtering components and tighter voltage margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.5AHE3_A/I | Lower PPPM (400 W), same VWM (6.5 V), SMA package (smaller footprint, higher RθJA) | Suitable for space-constrained consumer electronics with lower surge exposure | Select when board area is critical and surge threat level is ≤IEC 61000-4-5 Level 2 |
| SMCJ6.5AHE3_A/I | Same electrical specs and SMC package, but commercial-grade (E3) instead of halogen-free (HM3) and non-AEC-Q101 | Applicable in non-automotive industrial or computing applications where halogen-free mandate does not apply | Select when AEC-Q101 and halogen-free compliance are not required, reducing cost without sacrificing performance |
Compared with SMCJ6.5AHM3_A/I, SMAJ6.5AHE3_A/I trades 63% lower surge capacity for 30% smaller PCB area, while SMCJ6.5AHE3_A/I retains identical protection performance but omits automotive qualification and halogen-free materials-enabling cost-sensitive designs where those attributes are unnecessary.
Availability
SMCJ6.5AHM3_A/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and consumer power adapter input-stage surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ6.5AHM3_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 optimization.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where AEC-Q101 qualification, high PPPM, and stable clamping performance are mandatory.
FAQ
What is the clamping voltage of the SMCJ6.5AHM3_A/I under full-rated surge current?
The SMCJ6.5AHM3_A/I has a maximum clamping voltage (VC) of 11.2 V when subjected to its peak pulse current (IPPM) of 133.9 A using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and reflects the actual voltage seen by protected circuitry during worst-case surge conditions. The SMCJ6.5AHM3_A/I maintains this clamping performance across its qualified operating temperature range.
Is the SMCJ6.5AHM3_A/I suitable for automotive applications?
Yes, the SMCJ6.5AHM3_A/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction. It is specifically intended for automotive use cases such as body control modules, infotainment power supplies, and ADAS sensor interfaces where reliability under temperature cycling, vibration, and high-energy transients is required. The SMCJ6.5AHM3_A/I meets all stress test requirements defined in the AEC-Q101 standard.
What does the "HM3" suffix mean in SMCJ6.5AHM3_A/I?
The "HM3" suffix in SMCJ6.5AHM3_A/I denotes halogen-free, RoHS-compliant construction meeting IEC 61249-2-21, with material formulation certified per Vishay's Doc. #99912. It also indicates compliance with JESD201 Class 2 whisker resistance and MSL Level 1 handling. Unlike E3-suffix variants, the HM3 version excludes brominated flame retardants while retaining UL 94 V-0 flammability rating-making it suitable for environmentally regulated automotive and industrial deployments. The SMCJ6.5AHM3_A/I is supplied in 13" tape-and-reel (I-packaging code).
How does the SMCJ6.5AHM3_A/I differ from the SMCJ6.5AHE3_A/I?
The SMCJ6.5AHM3_A/I and SMCJ6.5AHE3_A/I share identical electrical specifications-including VWM = 6.5 V, VBR = 7.22–7.98 V, VC = 11.2 V, and PPPM = 1500 W-but differ in material compliance and qualification. The SMCJ6.5AHM3_A/I is halogen-free and AEC-Q101 qualified; the SMCJ6.5AHE3_A/I is RoHS-compliant but not halogen-free and lacks AEC-Q101 certification. Both use the same SMC (DO-214AB) package and are pin-compatible. The SMCJ6.5AHM3_A/I is preferred for automotive applications; the SMCJ6.5AHE3_A/I suits cost-sensitive commercial designs.
What PCB layout guidance applies to the SMCJ6.5AHM3_A/I for optimal thermal performance?
For optimal thermal performance, the SMCJ6.5AHM3_A/I must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in Vishay Doc. #88394. These pads reduce RθJA from 75 °C/W to its rated value and prevent thermal runaway during repetitive surges. Avoid narrow traces or thermal reliefs between the device terminals and bulk copper; use multiple vias to inner-layer ground planes if internal layers are available. The SMCJ6.5AHM3_A/I's thermal resistance is validated only with this layout, and deviation increases junction temperature disproportionately.
SMCJ6.5AHM3_A/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 133.9A
- 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)
SMCJ6.5AHM3_A/I FAQ
1.How can I place an order for SMCJ6.5AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ6.5AHM3_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 SMCJ6.5AHM3_A/I reliable?
The price and inventory of SMCJ6.5AHM3_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 SMCJ6.5AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ6.5AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6.5AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ6.5AHM3_A/I?
SMCJ6.5AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ6.5AHM3_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 SMCJ6.5AHM3_A/I?
For technical support, including SMCJ6.5AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6.5AHM3_A/I requirements.
6.How does Aetrix verify that SMCJ6.5AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ6.5AHM3_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 SMCJ6.5AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ6.5AHM3_A/I?
All SMCJ6.5AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6.5AHM3_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 SMCJ6.5AHM3_A/I part is unused and in its original packaging.
Return procedure for SMCJ6.5AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ6.5AHM3_A/I Tags
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