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Vishay General Semiconductor - Diodes Division SMBJ6.5CAHE3_A/I
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- Part No.:
- SMBJ6.5CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5CAHE3_A/I.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,787
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Product details
Overview
SMBJ6.5CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power 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), and clamps to ≤11.2 V at 53.6 A peak surge current - used to protect MOSFETs, sensor interfaces, and industrial I/O circuits.
For engineers reviewing the SMBJ6.5CAHE3_A/I datasheet, SMBJ6.5CAHE3_A/I pinout, SMBJ6.5CAHE3_A/I application, or SMBJ6.5CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, 11.2 V max clamping voltage at rated IPPM, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<500 µA at VWM), while the 10/1000 µs waveform rating reflects standardized lightning/surge immunity testing per ANSI/IEEE C62.35.
The device is rated for -55 °C to +150 °C operating junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its 20 °C/W junction-to-lead thermal resistance supports localized heat dissipation during transient events, and AEC-Q101 qualification confirms suitability for automotive electronics under stress conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse working voltage before clamping begins; sets safe operating margin below circuit supply rails. |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - guaranteed breakdown range defining turn-on threshold consistency across production lots. |
| VC @ IPPM | ≤11.2 V at 53.6 A - clamping voltage under 600 W 10/1000 µs surge; determines protected IC's maximum transient exposure. |
| PPPM | 600 W - peak pulse power handling capacity; defines survivability against IEC 61000-4-5 Level 4 surges. |
| IPPM | 53.6 A - peak surge current corresponding to 600 W into VC; used to size PCB trace width and pad thermal mass. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive or industrial enclosures. |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient on standard 0.2" × 0.2" copper pads; informs derating above 25 °C ambient. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Acts as cathode in one polarity; accepts surge current from either direction during clamping event. |
| Cathode | Transient current entry (bidirectional) | Acts as anode in opposite polarity; completes low-impedance path to ground or rail during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JESD22. |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 combination wave surges up to ±2 kV (line-earth) without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during fast transients, reducing stress on downstream 3.3 V or 5 V logic interfaces. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without preconditioning or special handling. |
| Glass passivated junction | Ensures stable leakage current (<500 µA) and VBR repeatability over lifetime and temperature extremes. |
Applications
| Industrial Sensor Interface Protection | Automotive CAN Bus Transient Suppression |
|---|---|
|
Use Scenario: Protecting 4–20 mA current-loop sensors and RS-485 transceivers from ESD and inductive switching spikes in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential signal pair or between signal line and ground. Use Value: Limits transient voltage to ≤11.2 V, preventing latch-up or gate oxide damage in analog front-end amplifiers and isolators. |
Use Scenario: Safeguarding high-speed CAN FD nodes in engine control units and body electronics against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between CANH/CANL lines and chassis ground to shunt common-mode surges. Use Value: Maintains signal integrity with <15 pF junction capacitance while meeting ISO 16750-2 pulse test requirements. |
| Consumer Power Adapter Input Stage | Telecom DSL Line Card Surge Protection |
|
Use Scenario: Secondary-side overvoltage suppression on 5 V/12 V DC outputs of wall adapters and USB PD chargers exposed to mains coupling. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed between output rail and ground to clamp flyback transformer ringing and hot-plug transients. Use Value: Responds in <1 ps to limit overshoot to 11.2 V, protecting USB-C controller ICs and load switches rated for 13.2 V absolute max. |
Use Scenario: Primary protection for ADSL/VDSL line interface ICs subjected to lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Bidirectional TVS mounted across tip/ring inputs ahead of transformer coupling and line driver stages. Use Value: Absorbs 600 W surge energy without failure, preserving signal fidelity up to 30 MHz while meeting GR-1089-CORE telecom standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA-E3/52 | Commercial-grade (non-AEC-Q101), same VWM, VBR, and PPPM; HE3 suffix adds automotive qualification and halogen-free construction. | Not qualified for automotive under-hood use; suitable for consumer/industrial applications where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and lifecycle assurance is not critical. |
| SMCJ6.5CAHE3_A/I | Same electrical specs but in larger SMC (DO-214AB) package; higher thermal mass (RθJA = 50 °C/W) and 1500 W PPPM rating. | Used where higher surge repetition rate or sustained power dissipation is required; occupies more PCB area. | Choose when system-level surge testing exceeds 600 W single-event limits or when board layout allows larger footprint. |
Compared with SMBJ6.5CA-E3/52, SMBJ6.5CAHE3_A/I adds AEC-Q101 validation and halogen-free compliance for automotive deployment; versus SMCJ6.5CAHE3_A/I, it trades lower surge capacity and higher thermal resistance for space-constrained layouts requiring SMB footprint.
Availability
SMBJ6.5CAHE3_A/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive CAN bus nodes, and telecom line card designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ6.5CAHE3_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, precision, and application-specific optimization.
The SMBJ series delivers standardized TVS performance in compact SMB packages for board-level ESD and surge protection across automotive, industrial, and communications systems - engineered for robustness in harsh environments.
FAQ
What is the clamping voltage of SMBJ6.5CAHE3_A/I at its rated peak pulse current?
The SMBJ6.5CAHE3_A/I clamps to a maximum of 11.2 V at its rated peak pulse current of 53.6 A (10/1000 µs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during a surge event. The SMBJ6.5CAHE3_A/I maintains this clamping performance consistently across its qualified temperature range (-55 °C to +150 °C) and after multiple surge events within datasheet limits.
Is SMBJ6.5CAHE3_A/I suitable for automotive applications?
Yes, SMBJ6.5CAHE3_A/I is AEC-Q101 qualified, meaning it has passed rigorous stress tests including temperature cycling, high-temperature operating life, and mechanical shock - confirming suitability for automotive electronic modules. The HE3 suffix explicitly denotes this qualification, along with RoHS compliance and halogen-free construction. SMBJ6.5CAHE3_A/I is deployed in engine control units, infotainment interfaces, and ADAS sensor harnesses where transient immunity is critical.
How does the bidirectional configuration of SMBJ6.5CAHE3_A/I affect its circuit placement?
The bidirectional configuration of SMBJ6.5CAHE3_A/I eliminates polarity concerns during placement - it has no cathode band marking and functions identically regardless of orientation across a differential pair or between line and ground. This simplifies layout for AC-coupled signals like CAN, RS-485, or Ethernet PHY interfaces, and avoids assembly errors. SMBJ6.5CAHE3_A/I achieves symmetrical clamping in both directions, ensuring equal protection against positive and negative transients without additional components.
What is the maximum reverse leakage current for SMBJ6.5CAHE3_A/I at its stand-off voltage?
At its 6.5 V stand-off voltage (VWM) and 25 °C ambient, SMBJ6.5CAHE3_A/I exhibits a maximum reverse leakage current (ID) of 500 µA. This low leakage ensures minimal power loss in standby mode and prevents false triggering in high-impedance sensing circuits. Leakage remains within specification up to +125 °C, supporting reliable operation in thermally demanding environments without compromising signal integrity.
Does SMBJ6.5CAHE3_A/I require special PCB layout considerations for thermal management?
Yes - SMBJ6.5CAHE3_A/I has a junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on standard 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures during repetitive surges, designers must ensure adequate copper area and avoid excessive trace length between the SMBJ6.5CAHE3_A/I and ground planes. Thermal vias under pads and internal ground layers further reduce RθJA and improve surge endurance.
SMBJ6.5CAHE3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ6.5CAHE3_A/I FAQ
1.How can I place an order for SMBJ6.5CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5CAHE3_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 SMBJ6.5CAHE3_A/I reliable?
The price and inventory of SMBJ6.5CAHE3_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 SMBJ6.5CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ6.5CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5CAHE3_A/I?
SMBJ6.5CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5CAHE3_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 SMBJ6.5CAHE3_A/I?
For technical support, including SMBJ6.5CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5CAHE3_A/I requirements.
6.How does Aetrix verify that SMBJ6.5CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5CAHE3_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 SMBJ6.5CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ6.5CAHE3_A/I?
All SMBJ6.5CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5CAHE3_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 SMBJ6.5CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ6.5CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5CAHE3_A/I Tags
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Diodes Incorporated
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