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Vishay General Semiconductor - Diodes Division SMBJ6.5CAHE3_A/H
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- Part No.:
- SMBJ6.5CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5CAHE3_A/H.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,113
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Product details
Overview
SMBJ6.5CAHE3_A/H 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 and 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 - deployed in sensor interface protection for industrial automation systems.
For engineers reviewing the SMBJ6.5CAHE3_A/H datasheet, SMBJ6.5CAHE3_A/H pinout, SMBJ6.5CAHE3_A/H application, or SMBJ6.5CAHE3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, 11.2 V maximum clamping voltage at rated IPPM, and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector: during transient overvoltage events exceeding VWM (6.5 V), it avalanches symmetrically in both directions to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM).
Thermal performance is defined by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), enabling reliable operation up to TJ = +150 °C. The SMBJ6.5CAHE3_A/H variant is RoHS-compliant and AEC-Q101 qualified, confirming suitability for automotive electronics environments requiring enhanced reliability and MSL Level 1 moisture sensitivity compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before clamping initiates; defines safe signal line bias range. |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - guaranteed avalanche onset window; ensures consistent turn-on across production lots. |
| VC @ IPPM | ≤11.2 V at 53.6 A - clamping voltage under 10/1000 µs surge; determines protected IC's maximum stress level. |
| PPPM | 600 W - peak transient power handling capacity; supports robust protection against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | ≤1.0 µA - reverse leakage at stand-off voltage; minimizes standby power loss and signal distortion. |
| TJ max | +150 °C - maximum junction temperature; enables deployment in under-hood automotive or high-ambient industrial settings. |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 0.205" × 0.130" footprint; compatible with J-STD-020 reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (either direction) | Accepts surge current regardless of polarity; connects to protected line (e.g., CAN_H or RS-485 A). |
| Cathode | Transient current exit (either direction) | Completes low-impedance path to ground or return rail during clamping; requires low-inductance layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., USB D+/D−, RS-485) without polarity concerns. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock per JESD22 standards. |
| 600 W peak pulse power | Withstands 10/1000 µs surges up to 53.6 A - sufficient for IEC 61000-4-5 4th-level (4 kV) line-to-ground transients. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during clamping; critical for safeguarding 3.3 V or 5 V logic interfaces with tight VIH/VIL margins. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking; simplifies SMT manufacturing and reduces BOM handling overhead. |
Applications
| Industrial Sensor Interface | Automotive CAN Bus Protection |
|---|---|
|
Use Scenario: Protecting analog output lines (4–20 mA) and digital I/O of pressure/temperature sensors in factory-floor PLC modules exposed to relay coil kickback and ESD. IC Role / Device Role / Timing Role: Shunt TVS diode placed between signal line and ground, clamping transients within nanoseconds to prevent latch-up or gate oxide damage in ADC drivers. Use Value: Limits induced voltage to ≤11.2 V during 53.6 A surges, ensuring sensor signal chain remains functional after repeated 4 kV contact discharge events. |
Use Scenario: Safeguarding CAN_H and CAN_L lines in body control modules against load dump and ISO 7637-2 pulse 1/2a/5a transients. IC Role / Device Role / Timing Role: Bidirectional voltage clamp installed differential-mode across CAN bus, suppressing common-mode surges while preserving signal integrity. Use Value: Maintains <1.0 µA leakage at 6.5 V VWM to avoid CAN bias current errors, and clamps to ≤11.2 V to keep transceivers within absolute maximum ratings. |
| Telecom Line Card Surge Protection | Consumer USB Port ESD Hardening |
|
Use Scenario: Front-end protection of xDSL or Ethernet PHY interfaces on telecom line cards subjected to lightning-induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: Primary shunt suppressor mounted at connector entry point, coordinated with upstream GDT or polymer PTC for multi-stage protection. Use Value: Delivers 600 W pulse power handling with 11.2 V clamping to limit stress on PHY's 3.3 V I/O pins during 10/1000 µs surges per IEC 61000-4-5. |
Use Scenario: ESD and fast-transient suppression on USB 2.0 data lines (D+, D−) in portable audio devices and smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at USB connector, minimizing trace length to reduce inductive ringing. Use Value: Achieves sub-12 V clamping at 53.6 A with <1.0 µA leakage - preserves USB signal rise/fall times while passing IEC 61000-4-2 ±15 kV air/±8 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA-E3/52 | Same electrical specs and SMB package; RoHS-compliant but not AEC-Q101 qualified. | Lacks automotive qualification; suitable for commercial/industrial use only. | Select when AEC-Q101 is not required and cost optimization is prioritized. |
| SMCJ6.5CAHE3_A/H | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package; higher 1500 W PPPM rating. | Requires larger PCB area; used where higher surge margin or thermal derating is needed. | Choose when system-level surge testing exceeds 600 W or board layout allows SMC footprint. |
Compared with SMBJ6.5CA-E3/52, the SMBJ6.5CAHE3_A/H adds AEC-Q101 qualification for automotive use; compared with SMCJ6.5CAHE3_A/H, it trades surge margin for space-constrained layouts - making SMBJ6.5CAHE3_A/H optimal for compact, automotive-grade signal-line protection.
Availability
SMBJ6.5CAHE3_A/H is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive CAN bus nodes, telecom line cards, and consumer USB port protection requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBJ6.5CAHE3_A/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, precision, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in space-constrained, high-surge environments - targeting automotive, industrial, and telecom infrastructure where robustness and qualification compliance are mandatory.
FAQ
What does the "CA" suffix indicate in SMBJ6.5CAHE3_A/H?
The "CA" suffix denotes a bidirectional configuration: SMBJ6.5CAHE3_A/H clamps voltage transients equally in both polarities, making it ideal for protecting AC-coupled or differential signal lines like CAN, RS-485, or USB without polarity constraints. Unlike unidirectional variants (e.g., SMBJ6.5A), it has no cathode band marking and exhibits symmetric VBR and VC characteristics.
Is SMBJ6.5CAHE3_A/H suitable for automotive applications?
Yes - SMBJ6.5CAHE3_A/H is explicitly AEC-Q101 qualified, as confirmed by Vishay's ordering code "HE3" suffix and documentation. It meets rigorous automotive reliability requirements including temperature cycling, humidity resistance, and mechanical shock testing, making it appropriate for body electronics, infotainment, and ADAS subsystems.
What is the maximum clamping voltage of SMBJ6.5CAHE3_A/H under surge conditions?
The maximum clamping voltage (VC) of SMBJ6.5CAHE3_A/H is 11.2 V at 53.6 A peak pulse current (IPPM), measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events and is critical for ensuring downstream ICs remain within their absolute maximum ratings.
How does SMBJ6.5CAHE3_A/H differ from SMBJ6.5AHE3_A/H?
SMBJ6.5CAHE3_A/H is bidirectional with symmetric clamping, while SMBJ6.5AHE3_A/H is unidirectional - featuring a cathode band and conducting only in reverse bias. The unidirectional version supports forward surge current (IFSM = 100 A) but cannot protect AC signals; the CA variant is mandatory for differential or floating-line applications where polarity reversal occurs.
What PCB layout practices optimize SMBJ6.5CAHE3_A/H performance?
To maximize SMBJ6.5CAHE3_A/H effectiveness, minimize trace inductance between the device and protected line/ground using short, wide copper paths; mount directly at the connector or IC pin; use 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal as specified; and avoid vias in the main surge current path - all critical to achieving the rated 11.2 V clamping voltage and 600 W pulse power capability.
SMBJ6.5CAHE3_A/H 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/H FAQ
1.How can I place an order for SMBJ6.5CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5CAHE3_A/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 SMBJ6.5CAHE3_A/H reliable?
The price and inventory of SMBJ6.5CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.5CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ6.5CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5CAHE3_A/H?
SMBJ6.5CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5CAHE3_A/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 SMBJ6.5CAHE3_A/H?
For technical support, including SMBJ6.5CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5CAHE3_A/H requirements.
6.How does Aetrix verify that SMBJ6.5CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5CAHE3_A/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 SMBJ6.5CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ6.5CAHE3_A/H?
All SMBJ6.5CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5CAHE3_A/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 SMBJ6.5CAHE3_A/H part is unused and in its original packaging.
Return procedure for SMBJ6.5CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5CAHE3_A/H Tags
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Diodes Incorporated
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