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Vishay General Semiconductor - Diodes Division SMBJ6.5CAHE3/5B
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- Part No.:
- SMBJ6.5CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5CAHE3/5B.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,904
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Product details
Overview
SMBJ6.5CAHE3/5B 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 and industrial I/O circuits.
For engineers reviewing the SMBJ6.5CAHE3/5B datasheet, SMBJ6.5CAHE3/5B pinout, SMBJ6.5CAHE3/5B application, or SMBJ6.5CAHE3/5B equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, 11.2 V maximum clamping voltage at rated IPPM, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both polarities, enabling robust ESD and surge suppression without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1.0 µA at VWM), while the 10/1000 µs waveform rating reflects real-world lightning and inductive-switching transient immunity.
The SMBJ6.5CAHE3/5B is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards - confirming suitability for high-reliability automotive and industrial PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 6.5 V - Maximum continuous reverse voltage before significant conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 7.22–7.98 V at 10 mA - Confirmed bidirectional avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | ≤11.2 V at IPPM = 53.6 A - Measured peak voltage across device during 10/1000 µs surge; protects downstream ICs rated ≤12 V. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized 10/1000 µs transient; validated per ANSI/IEEE C62.35. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - Ultra-low off-state current minimizes standby power loss and avoids false triggering in high-impedance circuits. |
| TJ max. | +150 °C - Maximum junction temperature rating supports operation in under-hood automotive and enclosed industrial environments. |
| RθJA | 100 °C/W - Thermal resistance from 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 - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional current path | Either terminal serves as anode or cathode depending on transient polarity; enables placement without orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control and ADAS sensor interfaces. |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly laid out - eliminates need for additional series impedance in many cases. |
| Low clamping ratio (VC/VBR ≈ 1.47) | Indicates efficient avalanche utilization and minimal voltage overshoot - critical for protecting 3.3 V and 5 V logic interfaces. |
| MSL Level 1 moisture sensitivity | Zero bake requirement prior to reflow; compatible with standard SMT production flow using peak temperature up to 260 °C. |
| Glass-passivated junction | Ensures long-term parameter stability and resistance to humidity-induced degradation - essential for outdoor and industrial deployments. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting analog outputs of pressure/temperature sensors connected to PLC analog input cards exposed to motor switching noise. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching ADC front-end. Use Value: Limits induced spikes to ≤11.2 V, preventing ADC saturation and latch-up in 12-bit precision measurement systems. |
Use Scenario: Safeguarding LIN bus transceiver I/O pins in door module ECUs subjected to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Fast-response TVS suppressing >100 V transients within nanoseconds while maintaining signal integrity on 20 kbps serial bus. Use Value: Enables compliance with ISO 7637-2 Pulse 1/2a/3a and AEC-Q100 stress tests without adding RC filtering delay. |
| Consumer Appliance Motor Drive | Telecom Power Supply Input |
|
Use Scenario: Suppressing inductive kickback from brushed DC motors in smart washing machine control boards. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to clamp flyback voltage during MOSFET turn-off. Use Value: Prevents MOSFET avalanche failure by limiting VDS spike to <12 V, extending FET lifetime under repeated 600 W surge loads. |
Use Scenario: Secondary-side transient protection on 48 V telecom DC-DC converter inputs exposed to hot-swap and cable discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 10/1000 µs surges up to 600 W without degradation. Use Value: Maintains system uptime by avoiding fuse blowing or controller reset during field-deployed maintenance operations. |
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-M3/5B | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free material compliance is mandated (e.g., EU public infrastructure projects). | Choose SMBJ6.5CA-M3/5B when halogen-free bill-of-materials is required; otherwise SMBJ6.5CAHE3/5B offers same performance with broader supply chain traceability. |
| SMCJ6.5CAHE3/5B | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package; 1500 W PPPM rating and lower RθJA (50 °C/W). | Used where higher surge endurance or improved thermal dissipation is needed - e.g., primary-side AC input protection. | Select SMBJ6.5CAHE3/5B for space-constrained secondary-side protection; choose SMCJ6.5CAHE3/5B only if 1500 W surge margin or lower thermal resistance is design-critical. |
Compared with SMBJ6.5CA-M3/5B, the SMBJ6.5CAHE3/5B provides identical protection performance with standard RoHS compliance; versus SMCJ6.5CAHE3/5B, it trades 2.5× lower surge rating for 40% smaller footprint and compatibility with dense sensor node layouts.
Availability
SMBJ6.5CAHE3/5B is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body electronics, consumer appliance motor drive, and telecom power supply applications requiring stable component supply, AEC-Q101 validation, and SMT-compatible transient protection.
Supply support for SMBJ6.5CAHE3/5B 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 robust transient suppression in harsh environments - targeting automotive, industrial automation, and communications infrastructure where repeatable clamping performance and long-term stability are mandatory.
FAQ
What does the "HE3" suffix indicate in SMBJ6.5CAHE3/5B?
The "HE3" suffix denotes that SMBJ6.5CAHE3/5B is RoHS-compliant and AEC-Q101 qualified, with matte tin-plated leads meeting J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2 requirements - confirming its suitability for automotive and high-reliability industrial use.
Is SMBJ6.5CAHE3/5B unidirectional or bidirectional?
SMBJ6.5CAHE3/5B is a bidirectional TVS diode, as confirmed by the "CA" suffix and documented electrical characteristics applying equally in both directions. It has no polarity marking and functions identically regardless of voltage polarity - ideal for AC-coupled or differential signal lines.
What is the maximum clamping voltage for SMBJ6.5CAHE3/5B at its rated surge current?
The maximum clamping voltage (VC) for SMBJ6.5CAHE3/5B is 11.2 V at 53.6 A peak pulse current (IPPM) under the 10/1000 µs waveform condition. This value is measured and guaranteed per the Vishay datasheet revision 09-Jan-2024, Document Number 88392.
Can SMBJ6.5CAHE3/5B be used in place of a unidirectional SMBJ6.5AHE3/5B?
No - SMBJ6.5CAHE3/5B is not a drop-in replacement for unidirectional SMBJ6.5AHE3/5B. While both share VWM and VBR ranges, the unidirectional version conducts only in reverse bias and requires correct cathode orientation; substituting the bidirectional variant may compromise circuit behavior in DC-biased applications like power rail protection.
What PCB pad layout is recommended for optimal thermal performance of SMBJ6.5CAHE3/5B?
Vishay specifies mounting SMBJ6.5CAHE3/5B on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve the published RθJA of 100 °C/W. Reducing pad area increases thermal resistance and requires derating of surge capability above 25 °C ambient - verified per Figure 2 in datasheet 88392.
SMBJ6.5CAHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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)
SMBJ6.5CAHE3/5B FAQ
1.How can I place an order for SMBJ6.5CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5CAHE3/5B 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 SMBJ6.5CAHE3/5B reliable?
The price and inventory of SMBJ6.5CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.5CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ6.5CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5CAHE3/5B?
SMBJ6.5CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5CAHE3/5B 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 SMBJ6.5CAHE3/5B?
For technical support, including SMBJ6.5CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5CAHE3/5B requirements.
6.How does Aetrix verify that SMBJ6.5CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5CAHE3/5B 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 SMBJ6.5CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ6.5CAHE3/5B?
All SMBJ6.5CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5CAHE3/5B, 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 SMBJ6.5CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ6.5CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5CAHE3/5B Tags
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