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Vishay General Semiconductor - Diodes Division SMBJ6.5AHM3_B/H
- Part No.:
- SMBJ6.5AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5AHM3_B/H.pdf
- Description:
- 600W,6.5V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,157
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Product details
Overview
SMBJ6.5AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping 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, 11.2 V maximum clamping voltage (VC) at 53.6 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ6.5AHM3_B/H datasheet, SMBJ6.5AHM3_B/H pinout, SMBJ6.5AHM3_B/H application, or SMBJ6.5AHM3_B/H equivalent, this page delivers verified electrical parameters, thermal derating behavior, AEC-Q101 qualification status, halogen-free RoHS compliance, and real-world clamping performance under surge conditions per IEC 61000-4-5.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its VBR range (7.22–7.98 V). Its low incremental surge resistance and sub-nanosecond response time enable effective suppression of ESD, lightning-induced surges, and inductive switching transients.
Thermally, it exhibits RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), with junction temperature rated from –55 °C to +150 °C. The device is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 6.5 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below circuit operating rail. |
| VBR (Breakdown Voltage) | 7.22–7.98 V at 10 mA - Confirmed avalanche onset range; ensures predictable triggering without premature conduction. |
| VC (Clamping Voltage) | 11.2 V at 53.6 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; defines protection window. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capability; validated per IEC 61000-4-5 Level 4 test profiles. |
| IPPM (Peak Pulse Current) | 53.6 A - Maximum non-repetitive surge current supported; determines minimum series impedance required for coordination. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in high-ambient environments like engine control units. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place and reflow. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, MSL Level 1 (JEDEC J-STD-020), lead-free and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VREV > VBR; polarity must be observed for unidirectional operation. |
| Anode | Reference / ground return path | Typically tied to system ground or low-impedance return plane; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 surge events up to 4 kV (line-to-earth) without degradation. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including body electronics and powertrain subsystems requiring zero-failure reliability. |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for EU, China RoHS, and JEITA EG02, supporting green manufacturing. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream components - critical for 5 V logic and automotive MCU I/O protection. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life before reflow; eliminates baking requirement and simplifies SMT production planning. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs and LIN bus lines from load dump and ISO 7637-2 pulses. IC Role / Device Role: Unidirectional TVS clamp placed between input rail and chassis ground. Use Value: Limits transient voltage to ≤11.2 V during 53.6 A surges, preventing latch-up or gate oxide damage in MCU power management ICs. |
Use Scenario: Shielding 24 V DC digital input channels from relay coil flyback and EFT bursts. IC Role / Device Role: Standoff-clamp TVS on field-side input traces before optocoupler or Schmitt trigger interface. Use Value: Maintains 6.5 V nominal isolation while clamping to 11.2 V, ensuring reliable signal recognition under 1 kV EFT noise. |
| Consumer Appliance Motor Drive Board | Telecom PoE-PD Interface Protection |
|
Use Scenario: Suppressing inductive kickback from brushed DC motor drivers on 5–24 V rails. IC Role / Device Role: Primary overvoltage clamp across H-bridge supply pins and gate driver outputs. Use Value: Absorbs 600 W surge energy without failure, preserving MOSFET gate integrity and enabling compact board layout. |
Use Scenario: Safeguarding IEEE 802.3af/at Powered Device (PD) controller inputs from Ethernet cable surges. IC Role / Device Role: Secondary-level TVS on PD detection/classification pins and DC-DC enable lines. Use Value: Provides precise 6.5 V standoff with fast response, avoiding false classification errors during PoE negotiation. |
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/H | Same electrical specs, but RoHS-compliant commercial grade (non-halogen-free); no AEC-Q101 qualification. | Suitable for non-automotive industrial or consumer designs where halogen-free is not mandated. | Select when cost sensitivity outweighs halogen-free requirement and automotive qualification is unnecessary. |
| SMAJ6.5A-M3 | Lower 400 W PPPM, SMA (DO-214AC) package (smaller footprint, higher RθJA = 140 °C/W). | Limited to lower-energy transients; less suitable for 4 kV surge immunity or high-temperature enclosures. | Choose only for space-constrained boards with <400 W surge exposure and ambient <85 °C. |
Compared with SMBJ6.5AHM3_B/H, the HE3 variant lacks halogen-free certification and AEC-Q101 validation, while the SMAJ6.5A-M3 sacrifices 33 % peak power handling and thermal performance due to smaller package size - making SMBJ6.5AHM3_B/H the optimal choice for automotive and high-reliability industrial surge protection.
Availability
SMBJ6.5AHM3_B/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input modules, and telecom PoE-powered devices requiring stable component supply, long-term lifecycle support, and halogen-free compliance.
Supply support for SMBJ6.5AHM3_B/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 SMBJ series is engineered for high-energy transient suppression in automotive, industrial, and communications systems - delivering consistent clamping performance, AEC-Q101 validation, and robust thermal design in standardized surface-mount packages.
FAQ
What is the clamping voltage of SMBJ6.5AHM3_B/H at its rated peak pulse current?
The SMBJ6.5AHM3_B/H has a maximum clamping voltage (VC) of 11.2 V at 53.6 A peak pulse current (10/1000 µs waveform). This value is measured under standardized surge conditions and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring compatibility with 5 V or 3.3 V logic interfaces downstream.
Is SMBJ6.5AHM3_B/H qualified for automotive applications?
Yes, SMBJ6.5AHM3_B/H is AEC-Q101 qualified, as indicated by the "HM3" suffix. This qualification confirms its suitability for automotive applications including body control modules, infotainment power supplies, and ADAS sensor interfaces - validated for temperature cycling, humidity testing, and mechanical shock per AEC standards.
What does the "HM3" suffix mean in SMBJ6.5AHM3_B/H?
The "HM3" suffix in SMBJ6.5AHM3_B/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade "E3" or non-automotive "M3" versions, confirming compliance with automotive environmental and reliability requirements - essential for Tier 1 supplier BOMs.
Can SMBJ6.5AHM3_B/H be used in bidirectional configurations?
No, SMBJ6.5AHM3_B/H is a unidirectional TVS diode, identified by its cathode band marking. For bidirectional protection, Vishay specifies the CA-suffixed variant (e.g., SMBJ6.5CA). Using SMBJ6.5AHM3_B/H in reverse-biased AC applications would result in forward conduction and potential failure.
What is the thermal resistance of SMBJ6.5AHM3_B/H from junction to ambient?
The typical junction-to-ambient thermal resistance (RθJA) of SMBJ6.5AHM3_B/H is 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal. This value assumes standard PCB layout and natural convection; actual thermal performance improves with enhanced copper area or forced airflow.
SMBJ6.5AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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/H FAQ
1.How can I place an order for SMBJ6.5AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5AHM3_B/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 SMBJ6.5AHM3_B/H reliable?
The price and inventory of SMBJ6.5AHM3_B/H 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/H is usually 5 days.
3.What payment methods are accepted for SMBJ6.5AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5AHM3_B/H?
SMBJ6.5AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5AHM3_B/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 SMBJ6.5AHM3_B/H?
For technical support, including SMBJ6.5AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5AHM3_B/H requirements.
6.How does Aetrix verify that SMBJ6.5AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5AHM3_B/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 SMBJ6.5AHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ6.5AHM3_B/H?
All SMBJ6.5AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5AHM3_B/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 SMBJ6.5AHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ6.5AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5AHM3_B/H Tags
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