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Vishay General Semiconductor - Diodes Division SMBJ6.5AHM3_B/I
- Part No.:
- SMBJ6.5AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5AHM3_B/I.pdf
- Description:
- 600W,6.5V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,705
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Product details
Overview
SMBJ6.5AHM3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising voltage transients on power and signal lines. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 µs), 53.6 A peak pulse current (IPPM), and clamps to ≤11.2 V at rated surge current - used for protecting MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the SMBJ6.5AHM3_B/I datasheet, SMBJ6.5AHM3_B/I pinout, SMBJ6.5AHM3_B/I application, or SMBJ6.5AHM3_B/I equivalent, key selection criteria include unidirectional polarity, 600 W surge capability, 11.2 V clamping voltage at 53.6 A, AEC-Q101 qualification status, and halogen-free RoHS-compliant packaging with M3 suffix.
Technical Context
This TVS diode operates as a clamping device in reverse-biased configuration, conducting only when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR and low leakage (<500 µA at VWM), while low incremental surge resistance enables effective energy diversion during ESD or lightning-induced surges.
The SMBJ6.5AHM3_B/I is rated for 150 °C maximum junction temperature and meets MSL level 1 per J-STD-020 (260 °C reflow peak). Its thermal resistance (RθJA = 100 °C/W) reflects standard SMB footprint thermal performance on 5.0 mm × 5.0 mm copper pads, supporting reliable operation in high-reliability embedded power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - precise breakdown window ensuring consistent turn-on across production lots |
| VC @ IPPM | ≤11.2 V at 53.6 A - clamping voltage defines worst-case overvoltage seen by protected circuitry |
| PPPM | 600 W (10/1000 µs waveform) - surge energy handling capacity for common IEC 61000-4-5 threat profiles |
| ID @ VWM | ≤500 µA - low leakage preserves system efficiency and prevents false triggering in high-impedance circuits |
| TJ max | +150 °C - supports operation in under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 5.21 mm × 4.06 mm footprint and 2.20 mm height |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity with cathode band marking. Matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes conduction path during transient clamp |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 12 V rail or sensor output); marked with band on package body |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without degradation when properly mounted |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements (HTOL, TC, HTRB) |
| Halogen-free & RoHS-compliant (M3) | Meets EU Directive 2011/65/EU and JEDEC J-STD-208 material restrictions for green manufacturing |
| MSL Level 1 rating | Enables single-reflow assembly without dry-pack or baking; compatible with standard SMT processes up to 260 °C peak |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage stress on downstream components compared to higher-ratio TVS devices |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump transients on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input, clamping spikes up to 35 V within nanoseconds. Use Value: Prevents damage to buck converter ICs and microcontrollers during alternator regulation faults, leveraging 600 W rating and 11.2 V clamping. | Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD events in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS connected between sensor output line and ground, absorbing ±8 kV contact discharge per IEC 61000-4-2. Use Value: Maintains signal integrity with <500 µA leakage at 6.5 V, avoiding offset errors in 4–20 mA loops. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Suppression |
Use Scenario: Protecting AC-DC adapter primary-side rectifier and controller ICs from mains-borne surges. IC Role / Device Role / Timing Role: Mounted across bridge rectifier output, clamping switching transients and lightning-induced spikes. Use Value: Withstands repetitive 10/1000 µs surges at 0.01% duty cycle, enabling robust 5-year field life in global markets. | Use Scenario: Safeguarding Ethernet PHY interface lines against induced surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Paired with common-mode chokes on differential pairs, providing asymmetrical overvoltage protection. Use Value: 7.22–7.98 V VBR range ensures reliable turn-on before PHY absolute maximum ratings are exceeded. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5AHE3_B/I | RoHS-compliant but not halogen-free; lacks JESD201 Class 2 whisker resistance certification | Approved for commercial-grade industrial equipment where halogen content is unrestricted | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 is unnecessary |
| SMBJ6.5CAHM3_B/I | Bidirectional variant with same VWM (6.5 V), symmetric clamping in both polarities | Required for AC-coupled or floating signal lines subject to bipolar transients (e.g., RS-485, CAN bus) | Choose only if bidirectional protection is mandated; otherwise unidirectional SMBJ6.5AHM3_B/I offers lower leakage and tighter VBR tolerance |
Compared with SMBJ6.5AHE3_B/I, the SMBJ6.5AHM3_B/I adds halogen-free compliance and whisker resistance for harsh environments; versus SMBJ6.5CAHM3_B/I, it provides superior unidirectional leakage control and narrower VBR spread for DC rail protection.
Availability
SMBJ6.5AHM3_B/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom line card prototyping requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ6.5AHM3_B/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 and automotive qualification.
The SMBJ series targets high-energy transient suppression in space-constrained applications, engineered specifically for AEC-Q101 compliance and robust surge immunity in automotive and industrial power systems.
FAQ
What is the clamping voltage of SMBJ6.5AHM3_B/I at its rated peak pulse current?
The SMBJ6.5AHM3_B/I clamps to a maximum of 11.2 V when subjected to its rated peak pulse current of 53.6 A (10/1000 µs waveform). This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ6.5AHM3_B/I maintains this clamping performance across its specified operating temperature range.
Is SMBJ6.5AHM3_B/I qualified for automotive applications?
Yes, SMBJ6.5AHM3_B/I is AEC-Q101 qualified, as indicated by the "HM3" suffix (halogen-free, RoHS-compliant, and AEC-Q101 qualified). It has passed stress tests including high-temperature operating life, temperature cycling, and humidity testing required for automotive powertrain and body electronics. The SMBJ6.5AHM3_B/I is approved for use in engine control units, lighting modules, and ADAS sensor interfaces.
How does the M3 suffix differ from E3 in SMBJ6.5AHM3_B/I?
The "M3" suffix in SMBJ6.5AHM3_B/I denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance, whereas "E3" indicates RoHS-compliance only without halogen-free assurance or whisker certification. Both meet UL 94 V-0 flammability, but SMBJ6.5AHM3_B/I is specified for applications requiring stricter material content controls, such as automotive and medical electronics where halogen restrictions apply.
What is the maximum reverse leakage current for SMBJ6.5AHM3_B/I at its stand-off voltage?
The SMBJ6.5AHM3_B/I exhibits a maximum reverse leakage current (ID) of 500 µA at its 6.5 V stand-off voltage (VWM), measured at 25 °C. This low leakage ensures minimal power loss and avoids interference with high-impedance sensing circuits. Leakage remains within specification up to +125 °C, supporting stable operation in thermally demanding environments where the SMBJ6.5AHM3_B/I is deployed.
Can SMBJ6.5AHM3_B/I be used in bidirectional signal protection?
No, SMBJ6.5AHM3_B/I is a unidirectional TVS diode and must not be used for bidirectional signal protection. Its cathode-band marking and asymmetric IV characteristics mean it conducts only during positive transients on the cathode side. For bidirectional applications like RS-485 or CAN bus, the bidirectional variant SMBJ6.5CAHM3_B/I is required. Using SMBJ6.5AHM3_B/I in such roles risks failure during negative-going transients.
SMBJ6.5AHM3_B/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:
- 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):
- 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_B/I FAQ
1.How can I place an order for SMBJ6.5AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5AHM3_B/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_B/I reliable?
The price and inventory of SMBJ6.5AHM3_B/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_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ6.5AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5AHM3_B/I?
SMBJ6.5AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5AHM3_B/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_B/I?
For technical support, including SMBJ6.5AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5AHM3_B/I requirements.
6.How does Aetrix verify that SMBJ6.5AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5AHM3_B/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_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ6.5AHM3_B/I?
All SMBJ6.5AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5AHM3_B/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_B/I part is unused and in its original packaging.
Return procedure for SMBJ6.5AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5AHM3_B/I Tags
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