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Vishay General Semiconductor - Diodes Division SMBJ6.0CAHE3/5B
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- Part No.:
- SMBJ6.0CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.0CAHE3/5B.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,402
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Product details
Overview
SMBJ6.0CAHE3/5B 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 or power lines. It features 6.4 V minimum breakdown voltage (VBR), 6.0 V maximum stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), and clamps to ≤10.3 V at 58.3 A peak surge current - used in automotive sensor protection, industrial I/O interfaces, and telecom line surge suppression.
For engineers reviewing the SMBJ6.0CAHE3/5B datasheet, SMBJ6.0CAHE3/5B pinout, SMBJ6.0CAHE3/5B application, or SMBJ6.0CAHE3/5B equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, 10.3 V 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 device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both directions, enabling robust transient suppression without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5% typical), low incremental surge resistance, and fast response time (<1 ns) to ESD and lightning-induced surges.
The SMBJ6.0CAHE3/5B is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (260 °C peak reflow), and supports repetitive surge duty cycles up to 0.01%. It delivers 5.0 W steady-state power dissipation at 50 °C ambient when mounted on infinite heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum reverse stand-off voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (min/max) | 6.4 V / 7.07 V at 10 mA - Confirmed bidirectional breakdown range; ensures reliable triggering across temperature and unit variation |
| VC @ IPPM | ≤10.3 V at 58.3 A - Clamping voltage under 10/1000 µs surge; determines protected circuit's maximum transient exposure |
| PPPM | 600 W - Peak pulse power handling with standard 10/1000 µs waveform; defines single-event surge energy absorption capacity |
| ID @ VWM | ≤800 µA - Reverse leakage at 6.0 V; critical for low-power sensor or battery-backed circuits where standby current matters |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; informs PCB copper pad design and derating above 25 °C ambient |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-temperature industrial enclosures |
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); terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional clamping | Connected to protected line; forms symmetrical avalanche path with cathode during either polarity transient |
| Cathode | Current exit terminal in forward bias; common node in bidirectional clamping | Connected to protected line; identical electrical role to anode due to bidirectional construction - no band marking |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS sensors, and infotainment power rails |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surge (4 kV line-earth) without degradation when properly mounted on 5.0 mm × 5.0 mm copper pads |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream ICs - e.g., protects 3.3 V or 5 V logic inputs during 1 kV EFT bursts |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without moisture-related popcorning; eliminates pre-bake requirement for high-volume SMT lines |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift - critical for outdoor telecom or industrial gateways |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and ground, absorbing transients before they reach sensitive analog front-ends or communication ICs. Use Value: Maintains signal integrity during 12 V system load dump events (up to 60 V, 400 ms) by clamping to ≤10.3 V - preventing latch-up or permanent damage to 5 V tolerant receivers. |
Use Scenario: Shielding digital input modules in programmable logic controllers from inductive kickback caused by relay or solenoid switching in factory automation. IC Role / Device Role / Timing Role: Parallel-connected TVS across 24 V DC input terminals, diverting surge energy away from optocoupler input stages and microcontroller GPIOs. Use Value: Limits transient voltage to <11 V during 100 A, 10/1000 µs surges - preserving isolation barrier integrity and ensuring deterministic state detection under EMI-heavy conditions. |
| Telecom Line Interface | Consumer USB Port ESD Protection |
|
Use Scenario: Safeguarding Ethernet PHYs and RS-485 transceivers in network switches and base stations against lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Primary-level TVS on differential pair lines (e.g., TX+/TX−), coordinated with secondary GDT or polymer PTC for multi-stage protection. Use Value: Responds in <1 ns to 6 kV contact ESD (IEC 61000-4-2) and clamps common-mode transients to <12 V - meeting GR-1089-CORE telecom immunity requirements. |
Use Scenario: Adding robust overvoltage protection to USB 2.0 data lines (D+/D−) and VBUS in portable chargers, docking stations, and peripherals exposed to user-handling ESD. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed directly at connector, shunting ESD current before it couples into USB transceiver silicon. Use Value: Delivers <0.5 pF junction capacitance (per diode) at zero bias - preserving signal rise/fall times while suppressing ±15 kV air discharge per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0CA-E3/5B | Commercial-grade version; same VBR, VC, and PPPM, but not AEC-Q101 qualified | Lacks automotive qualification; unsuitable for under-hood or safety-critical systems | Select when cost-sensitive industrial or consumer designs do not require automotive reliability validation |
| SMAJ6.0CAHE3/A | Same AEC-Q101 qualification, but SMA (DO-214AC) package - smaller footprint (4.3 mm × 2.6 mm), lower PPPM (400 W) | Reduced surge handling; limited to lower-energy transients (e.g., IEC 61000-4-2 only, not IEC 61000-4-5) | Choose for space-constrained PCBs where 400 W peak power suffices and automotive qualification remains mandatory |
Compared with SMBJ6.0CAHE3/5B, the E3/5B variant trades AEC-Q101 compliance for lower cost, while the SMAJ6.0CAHE3/A reduces board area at the expense of 33% lower surge energy handling - requiring careful system-level coordination with upstream filters or gas discharge tubes in high-risk environments.
Availability
SMBJ6.0CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line interface applications requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for SMBJ6.0CAHE3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered for high-energy transient suppression in automotive, industrial, and communications infrastructure - prioritizing low clamping voltage, repeatable surge performance, and AEC-Q101 compliance.
FAQ
What is the clamping voltage of SMBJ6.0CAHE3/5B at its rated peak pulse current?
The SMBJ6.0CAHE3/5B clamps to a maximum of 10.3 V at its rated peak pulse current of 58.3 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024 (Document Number: 88392). The low clamping voltage ensures downstream 5 V or 3.3 V ICs remain within safe operating limits during surge events.
Is SMBJ6.0CAHE3/5B suitable for automotive applications?
Yes, SMBJ6.0CAHE3/5B is AEC-Q101 qualified, as indicated by the "HE3" suffix, making it suitable for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. It undergoes rigorous stress testing for temperature cycling, high-temperature reverse bias, and ESD - validated per the AEC-Q101 standard and documented in Vishay's certification records.
What does the "CA" suffix mean in SMBJ6.0CAHE3/5B?
The "CA" suffix in SMBJ6.0CAHE3/5B denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMBJ6.0A), SMBJ6.0CAHE3/5B has no polarity marking and exhibits identical VBR, VC, and leakage characteristics in either direction - ideal for AC-coupled or differential signal lines.
What is the thermal resistance of SMBJ6.0CAHE3/5B, and how does it affect layout?
The SMBJ6.0CAHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on standard PCB land patterns. To maintain safe junction temperatures under repeated surges, designers must use minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal and consider thermal vias or internal planes for higher-duty-cycle applications - especially near the 150 °C TJ limit.
How does SMBJ6.0CAHE3/5B differ from the SMAJ6.0CAHE3/A variant?
SMBJ6.0CAHE3/5B uses the larger SMB (DO-214AA) package with 600 W peak pulse power, while SMAJ6.0CAHE3/A uses the smaller SMA (DO-214AC) package rated for 400 W. Both are AEC-Q101 qualified and bidirectional, but SMBJ6.0CAHE3/5B offers 50% higher surge energy handling and superior thermal dissipation - making it preferred for IEC 61000-4-5 Level 4 compliance and high-reliability automotive deployments.
SMBJ6.0CAHE3/5B 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):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 58.3A
- 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)
SMBJ6.0CAHE3/5B FAQ
1.How can I place an order for SMBJ6.0CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.0CAHE3/5B 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 SMBJ6.0CAHE3/5B reliable?
The price and inventory of SMBJ6.0CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.0CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ6.0CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.0CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.0CAHE3/5B?
SMBJ6.0CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.0CAHE3/5B 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 SMBJ6.0CAHE3/5B?
For technical support, including SMBJ6.0CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.0CAHE3/5B requirements.
6.How does Aetrix verify that SMBJ6.0CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ6.0CAHE3/5B 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 SMBJ6.0CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ6.0CAHE3/5B?
All SMBJ6.0CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.0CAHE3/5B, 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 SMBJ6.0CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ6.0CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.0CAHE3/5B Tags
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