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Vishay General Semiconductor - Diodes Division SMBJ6.5AHM3/I
- Part No.:
- SMBJ6.5AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5AHM3/I.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,876
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Product details
Overview
SMBJ6.5AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 11.2 V maximum clamping voltage (VC) at 53.6 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), commonly deployed to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive power systems.
For engineers reviewing the SMBJ6.5AHM3/I datasheet, SMBJ6.5AHM3/I pinout, SMBJ6.5AHM3/I application, or SMBJ6.5AHM3/I equivalent, key selection criteria include its unidirectional polarity, halogen-free RoHS-compliant HM3 suffix, AEC-Q101 qualification readiness, and thermal resistance (RθJA = 100 °C/W) under standard PCB pad layout conditions.
Technical Context
This TVS diode operates as a clamping-type surge protector, leveraging an avalanche breakdown mechanism to limit transient voltages across protected circuits. Its low incremental surge resistance and fast response time (<1 ns) ensure effective suppression of ESD, lightning-induced surges, and inductive switching spikes without affecting normal signal integrity.
The device is rated for repetitive 600 W pulses (10/1000 µs, 0.01% duty cycle) and supports peak forward surge current up to 100 A (8.3 ms half-sine). Junction temperature range spans −55 °C to +150 °C, with MSL Level 1 moisture sensitivity and lead-free matte tin plating compliant with J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - Confirmed breakdown threshold range; ensures reliable triggering above VWM with margin. |
| VC @ IPPM | 11.2 V at 53.6 A - Clamped voltage during 600 W transient; determines maximum stress on downstream components. |
| PPPM | 600 W (10/1000 µs) - Peak surge energy handling capacity; validates suitability for IEC 61000-4-5 Level 3/4 transients. |
| ID @ VWM | 500 µA max - Reverse leakage at stand-off voltage; low value minimizes standby power loss and false triggering. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or lower-potential rail in unidirectional TVS configuration; enables clamping to reference plane. |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., power rail or signal); avalanche breakdown occurs when cathode-to-anode voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports high-energy transients common in 12 V/24 V automotive and industrial power rails without degradation. |
| AEC-Q101 qualified variant available (HM3 suffix) | Meets automotive reliability requirements including temperature cycling, HTRB, and ESD testing per AEC standard. |
| Halogen-free, RoHS-compliant construction | Complies with environmental regulations and eliminates corrosive halogen emissions during solder reflow or end-of-life disposal. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage overshoot during surge events, reducing risk of damage to downstream CMOS or logic-level interfaces. |
| MSL Level 1, peak reflow ≤ 260 °C | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure or delamination. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges above 13.5 V. Use Value: Limits peak voltage to ≤11.2 V at 53.6 A, preventing latch-up or gate oxide rupture in MCU power domains. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected inline with sensor output trace to ground. Use Value: Sub-1 ns response preserves signal fidelity while suppressing ±8 kV contact ESD per IEC 61000-4-2. |
| Consumer Power Adapter Input Stage | Telecom DC Power Interface |
Use Scenario: Safeguarding AC/DC adapter primary-side rectifier and controller ICs from mains-borne surges. IC Role / Device Role / Timing Role: TVS mounted across bulk capacitor input to absorb differential-mode transients. Use Value: Withstands 600 W pulses without degradation, extending adapter lifetime in regions with unstable grid quality. |
Use Scenario: Protecting -48 V telecom power distribution boards from hot-swap and lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to system ground on each power feed line. Use Value: 150 °C max junction rating ensures stable operation in sealed, fanless telecom enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5A-M3/52 | Same electrical specs, but M3 suffix indicates halogen-free RoHS compliance without AEC-Q101 qualification. | Preferred for commercial/industrial designs where automotive qualification is not required. | Select when cost-sensitive volume production needs halogen-free compliance but no automotive validation. |
| SMBJ6.5AHE3_B/I | Same electrical specs and AEC-Q101 qualification, but HE3 suffix denotes RoHS-compliant (non-halogen-free) construction. | Suitable where legacy RoHS compliance suffices and halogen-free material is not mandated. | Choose when supply chain requires RoHS-only compliance and halogen content restrictions do not apply. |
Compared with SMBJ6.5AHM3/I, the M3/52 alternative offers identical surge performance without AEC-Q101 validation, while the HE3_B/I variant provides automotive qualification using non-halogen-free materials-making SMBJ6.5AHM3/I the only option combining both halogen-free construction and AEC-Q101 readiness.
Availability
SMBJ6.5AHM3/I is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, and telecom power systems requiring stable component supply with long-term lifecycle assurance.
Supply support for SMBJ6.5AHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-volume manufacturability.
The SMBJ series targets board-level transient protection in harsh environments, with design focus on automotive, industrial, and telecom applications demanding robust surge immunity and long-term stability.
FAQ
What is the clamping voltage of SMBJ6.5AHM3/I at its rated peak pulse current?
The SMBJ6.5AHM3/I has a maximum clamping voltage (VC) of 11.2 V when subjected to its specified peak pulse current (IPPM) of 53.6 A under the 10/1000 µs waveform condition. This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuitry during transient events. The SMBJ6.5AHM3/I maintains this clamping performance across its full operating temperature range.
Is SMBJ6.5AHM3/I qualified for automotive applications?
Yes, SMBJ6.5AHM3/I carries the HM3 suffix, indicating it is halogen-free, RoHS-compliant, and AEC-Q101 qualified. This certification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, confirming suitability for automotive powertrain, body electronics, and infotainment systems. The SMBJ6.5AHM3/I meets the reliability requirements for under-hood and cabin-mounted modules.
What does the "HM3" suffix mean in SMBJ6.5AHM3/I?
The "HM3" suffix in SMBJ6.5AHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from base M3 (halogen-free, non-automotive) and HE3 (RoHS-compliant, AEC-Q101, non-halogen-free) versions. The SMBJ6.5AHM3/I is specifically intended for automotive-grade designs requiring both environmental compliance and automotive reliability validation.
How does SMBJ6.5AHM3/I compare to SMBJ6.5A-E3/52 in terms of compliance?
SMBJ6.5AHM3/I is halogen-free and AEC-Q101 qualified, whereas SMBJ6.5A-E3/52 is RoHS-compliant (E3) but neither halogen-free nor automotive-qualified. Both share identical electrical parameters and SMB package, but the SMBJ6.5AHM3/I adds critical qualifications for automotive use and stricter material content controls. For non-automotive commercial applications, SMBJ6.5A-E3/52 remains a cost-effective alternative.
What is the thermal resistance of SMBJ6.5AHM3/I, and how does it affect PCB layout?
The SMBJ6.5AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's datasheet; reducing pad area increases thermal resistance and risks exceeding the +150 °C max junction temperature during repeated surges. Proper copper pour and via stitching are advised for high-duty-cycle applications involving SMBJ6.5AHM3/I.
SMBJ6.5AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 53.6A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMB)
SMBJ6.5AHM3/I FAQ
1.How can I place an order for SMBJ6.5AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5AHM3/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 SMBJ6.5AHM3/I reliable?
The price and inventory of SMBJ6.5AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.5AHM3/I is usually 5 days.
3.What payment methods are accepted for SMBJ6.5AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5AHM3/I?
SMBJ6.5AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5AHM3/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 SMBJ6.5AHM3/I?
For technical support, including SMBJ6.5AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5AHM3/I requirements.
6.How does Aetrix verify that SMBJ6.5AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5AHM3/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 SMBJ6.5AHM3/I meets industry standards.
7.What is the process for return or replacement of SMBJ6.5AHM3/I?
All SMBJ6.5AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5AHM3/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 SMBJ6.5AHM3/I part is unused and in its original packaging.
Return procedure for SMBJ6.5AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5AHM3/I Tags
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