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Vishay General Semiconductor - Diodes Division SMBJ6.5AHE3_B/H
- Part No.:
- SMBJ6.5AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5AHE3_B/H.pdf
- Description:
- 600W,6.5V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,814
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Product details
Overview
SMBJ6.5AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping fast-rising ESD and surge 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 - deployed in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the SMBJ6.5AHE3_B/H datasheet, SMBJ6.5AHE3_B/H pinout, SMBJ6.5AHE3_B/H application, or SMBJ6.5AHE3_B/H equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (−55 to +150 °C), and RoHS-compliant packaging details required for robust overvoltage design validation.
Technical Context
This TVS diode operates as a unidirectional clamping device: reverse-biased during normal operation, it remains high-impedance until VWM (6.5 V) is exceeded, then avalanches to limit transient voltage to ≤11.2 V at 53.6 A. Its glass-passivated junction ensures stable breakdown and low leakage (<500 µA at VWM).
Designed for automated SMT assembly, it meets MSL Level 1 per J-STD-020, supports 260 °C lead-free reflow, and is qualified to AEC-Q101 - confirming suitability for automotive electronics where reliability under thermal cycling and surge stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 6.5 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (Breakdown Voltage) | 7.22–7.98 V at 10 mA - precise avalanche initiation threshold for predictable clamping onset |
| VC (Clamping Voltage) | 11.2 V at 53.6 A (10/1000 µs) - limits transient voltage seen by downstream ICs or MOSFETs |
| PPPM (Peak Pulse Power) | 600 W - sustains high-energy surges without failure under standardized lightning/surge test conditions |
| IPPM (Peak Pulse Current) | 53.6 A - maximum non-repetitive surge current the device safely clamps |
| TJ Range | −55 to +150 °C - enables deployment in under-hood automotive and industrial environments |
| RθJA | 100 °C/W - defines thermal derating behavior on standard 0.2" × 0.2" copper pads |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity marked by cathode band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to circuit ground or lower-potential node in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 5 V rail or sensor input); band denotes this end |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HAST, and surge endurance |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surge events (4 kV line-to-earth) when properly laid out |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes let-through voltage to protect 5 V logic interfaces without overdesigning margin |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; compatible with standard lead-free reflow profiles up to 260 °C |
| RoHS-compliant & halogen-free option available | Meets environmental compliance requirements for global automotive and industrial OEM programs |
Applications
| Automotive Sensor Protection | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor supply line and chassis ground to clamp transients before they reach ASIC inputs. Use Value: Prevents latch-up or permanent damage to 5 V tolerant sensor ICs during 12 V system load dump events (up to 35 V, 400 ms). |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Clamping device on the input side of optocoupler isolation barriers to absorb energy before signal conditioning stages. Use Value: Enables >15 kV contact ESD immunity (IEC 61000-4-2) and 2 kV surge protection (IEC 61000-4-5) without degrading input response time. |
| USB Power Line Protection | DC-DC Converter Input Stage |
Use Scenario: Guarding 5 V USB VBUS lines in embedded host devices against hot-plug transients and cable-induced spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on the upstream side of USB port power switches and load switches. Use Value: Limits VBUS overshoot to <11.2 V during 100 ns rise-time transients, preserving USB PHY integrity and preventing false disconnects. |
Use Scenario: Suppressing switching noise and input surges on buck converter inputs fed from unregulated 12 V or 24 V rails. IC Role / Device Role / Timing Role: Transient shunt across input capacitor to prevent overvoltage stress on controller ICs and MOSFET gate drivers. Use Value: Absorbs 600 W surge energy without thermal runaway, maintaining DC-DC regulation stability during automotive cold-crank or jump-start events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5A-E3/52 | Same electrical specs and SMB package; RoHS-compliant but not AEC-Q101 qualified | Approved for commercial/industrial use only; excluded from automotive production BOMs requiring AEC certification | Select when AEC-Q101 is not mandated and cost optimization is prioritized |
| SAC5.0 | Lower VWM (5.0 V), higher IPPM (62 A), same PPPM; SOD-123FL package (smaller footprint) | Better suited for tighter board space and lower-voltage rails; less thermal mass than SMB | Choose for compact 3.3 V/5 V designs where layout area is constrained and 6.5 V VWM margin is excessive |
Compared with SMBJ6.5AHE3_B/H, SMBJ6.5A-E3/52 offers identical clamping performance without automotive qualification, while SAC5.0 trades higher surge current capability and smaller size for reduced stand-off margin - making each suitable for distinct voltage tolerance and reliability tier requirements.
Availability
SMBJ6.5AHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and USB power management systems requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMBJ6.5AHE3_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 high-reliability, high-efficiency solutions.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust transient suppression in automotive, industrial, and communications infrastructure where repeatable clamping and long-term stability under surge stress are mandatory.
FAQ
What is the clamping voltage of SMBJ6.5AHE3_B/H at its rated peak pulse current?
The SMBJ6.5AHE3_B/H has a maximum clamping voltage (VC) of 11.2 V when subjected to its rated peak pulse current of 53.6 A using the standard 10/1000 µs waveform. This value is measured under defined test conditions per JEDEC standards and ensures downstream components see no more than 11.2 V during surge events. The SMBJ6.5AHE3_B/H maintains this clamping performance across its qualified operating temperature range.
Is SMBJ6.5AHE3_B/H qualified for automotive applications?
Yes, SMBJ6.5AHE3_B/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in datasheet revision 09-Jan-2024. This qualification covers stress tests including temperature cycling, humidity bias, and surge endurance - validating SMBJ6.5AHE3_B/H for use in automotive powertrain, body electronics, and ADAS sensor modules where reliability under harsh conditions is essential.
What is the thermal resistance of SMBJ6.5AHE3_B/H, and how does it affect PCB layout?
The SMBJ6.5AHE3_B/H 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; reducing pad area increases RθJA, risking thermal overload during repetitive surges. For SMBJ6.5AHE3_B/H, maintaining specified copper area ensures safe dissipation of 5.0 W steady-state power and preserves 600 W pulse capability.
How does the breakdown voltage range of SMBJ6.5AHE3_B/H impact circuit design margin?
The SMBJ6.5AHE3_B/H exhibits a guaranteed breakdown voltage (VBR) range of 7.22 V to 7.98 V at 10 mA test current. This ±4.5% tolerance informs design margining: circuits must ensure normal operating voltage stays below 7.22 V to avoid premature conduction, while allowing headroom up to 7.98 V before full clamping engages. This tight VBR distribution supports precise overvoltage protection in 5 V and 6.5 V systems without unnecessary derating.
Can SMBJ6.5AHE3_B/H replace SMBJ6.0A in an existing design?
SMBJ6.5AHE3_B/H is not a direct drop-in replacement for SMBJ6.0A due to its higher stand-off voltage (6.5 V vs. 6.0 V) and higher minimum breakdown voltage (7.22 V vs. 6.67 V). Substituting SMBJ6.5AHE3_B/H may delay clamping onset, increasing risk of overvoltage exposure in circuits designed for 6.0 V VWM. Verify system-level transient response and ensure all protected ICs tolerate the extended voltage window before implementing SMBJ6.5AHE3_B/H in place of SMBJ6.0A.
SMBJ6.5AHE3_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)
SMBJ6.5AHE3_B/H FAQ
1.How can I place an order for SMBJ6.5AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5AHE3_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 SMBJ6.5AHE3_B/H reliable?
The price and inventory of SMBJ6.5AHE3_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 SMBJ6.5AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ6.5AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5AHE3_B/H?
SMBJ6.5AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5AHE3_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 SMBJ6.5AHE3_B/H?
For technical support, including SMBJ6.5AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5AHE3_B/H requirements.
6.How does Aetrix verify that SMBJ6.5AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5AHE3_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 SMBJ6.5AHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ6.5AHE3_B/H?
All SMBJ6.5AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5AHE3_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 SMBJ6.5AHE3_B/H part is unused and in its original packaging.
Return procedure for SMBJ6.5AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5AHE3_B/H Tags
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