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Vishay General Semiconductor - Diodes Division SMBJ6.5CA/54
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- Part No.:
- SMBJ6.5CA/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5CA/54.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,588
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Product details
Overview
SMBJ6.5CA/54 from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in the 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 - deployed in sensor interface protection for industrial control systems.
For engineers reviewing the SMBJ6.5CA/54 datasheet, SMBJ6.5CA/54 pinout, SMBJ6.5CA/54 application, or SMBJ6.5CA/54 equivalent, key selection criteria include bidirectional clamping capability, low clamping voltage under 53.6 A surge, compliance with IEC 61000-4-2/4-4/4-5, AEC-Q101 qualification availability, and compatibility with automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling robust protection of AC-coupled or differential signal lines without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports fast energy dissipation during ESD or lightning-induced transients.
The device complies with MSL level 1 per J-STD-020 (reflow peak 260 °C), uses matte tin-plated leads solderable per J-STD-002, and achieves thermal resistance of 100 °C/W (junction-to-ambient) on standard PCB pads - making it suitable for high-reliability commercial and automotive-grade designs when specified with HE3/HM3 suffixes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 5 V logic or sensor supply rails. |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - verified breakdown threshold range ensuring consistent turn-on across production lots. |
| VC @ IPPM | ≤11.2 V at 53.6 A - clamping voltage under 10/1000 µs surge; protects downstream ICs rated for ≤12 V absolute maximum. |
| PPPM | 600 W - peak pulse power handling capacity; sustains repetitive 0.01% duty cycle surges without degradation. |
| IPPM | 53.6 A - maximum non-repetitive peak surge current; sized for IEC 61000-4-5 Level 4 (4 kV line-to-line). |
| TJ max. | +150 °C - maximum junction temperature; enables operation in under-hood or enclosed industrial environments. |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with IPC-7351B density B. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical terminals with identical electrical behavior in either direction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts surge current bidirectionally once VBR is exceeded in either polarity. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded sensor outputs without external polarity management. |
| 600 W peak pulse power | Handles IEC 61000-4-5 combination wave surges up to 4 kV (line-to-line) without failure when mounted on 5.0 mm × 5.0 mm copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage stress on protected ICs - e.g., limits 5 V rail excursions to <11.2 V during 53.6 A transients. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without moisture-induced damage; eliminates bake requirements prior to assembly. |
| AEC-Q101 qualification option | Available with HE3/HM3 suffixes for automotive applications requiring validated reliability under temperature cycling, HTRB, and mechanical shock. |
Applications
| Industrial Sensor Interfaces | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loops) and digital I/O pins of pressure/temperature sensors exposed to relay switching noise. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt EFT bursts before reaching ADC or microcontroller GPIO. Use Value: Limits induced transients to ≤11.2 V, preventing latch-up or permanent damage to 5 V-tolerant sensor interface ICs. |
Use Scenario: Safeguarding LIN bus transceivers and door module switch inputs against load dump and inductive kickback in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Primary TVS on LIN data line and power input, operating alongside polyfuse for coordinated overvoltage/overcurrent protection. Use Value: Withstands repeated 10/1000 µs surges up to 53.6 A while maintaining VWM = 6.5 V - compatible with LIN physical layer voltage margins. |
| Telecom Line Interface Cards | Consumer Appliance Motor Drivers |
|
Use Scenario: Shielding Ethernet PHY magnetics secondary windings and PoE detection circuitry from lightning-induced surges on outdoor-facing ports. IC Role / Device Role / Timing Role: Secondary-side TVS on isolated data lines, selected for symmetry to avoid skew in differential signaling paths. Use Value: Bidirectional response ensures equal clamping on both conductors, preserving common-mode rejection and signal integrity during surge events. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machine control boards during commutation and brake cycles. IC Role / Device Role / Timing Role: Parallel-mounted TVS across motor terminals to clamp inductive spikes before they couple into MCU power rails or gate drivers. Use Value: 600 W rating handles repetitive 8.3 ms half-sine surges up to 100 A (IFSM-equivalent energy), extending board-level reliability in high-durability appliances. |
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 | Same electrical specs and SMB package; RoHS-compliant commercial grade with 7" tape-and-reel packaging (750 pcs). | No AEC-Q101 qualification; intended for industrial/commercial use only. | Select when automotive qualification is unnecessary and standard reel quantity meets production planning needs. |
| SMBJ6.5CAHE3_B/I | Identical VWM, VBR, and PPPM; adds AEC-Q101 qualification, halogen-free construction, and 13" tape-and-reel (3200 pcs). | Validated for automotive under-hood and body electronics per stress test requirements. | Choose for Tier 1 automotive programs requiring PPAP documentation and long-term supply continuity. |
Compared with SMBJ6.5CA/54, the E3/52 variant offers cost-optimized commercial supply, while the HE3_B/I version delivers automotive-grade traceability and extended reel volume - both share identical clamping performance but differ in compliance scope and logistics format.
Availability
SMBJ6.5CA/54 is available at Aetrix Electronics and suitable for industrial sensor protection, automotive body electronics, telecom line interface cards, and consumer appliance motor drive circuits requiring stable component supply across multi-year production cycles.
Supply support for SMBJ6.5CA/54 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, power efficiency, and automotive-grade validation.
The SMBJ series was developed specifically for high-energy transient suppression in space-constrained SMT applications - balancing low clamping voltage, high surge capacity, and manufacturability across industrial, automotive, and communications end markets.
FAQ
What does the "/54" suffix indicate in SMBJ6.5CA/54?
The "/54" suffix in SMBJ6.5CA/54 denotes the preferred packaging configuration: 13-inch diameter plastic tape-and-reel with 3200 units per reel. This format aligns with standard SMT pick-and-place equipment feed requirements and supports high-volume automated assembly without manual repackaging. The core electrical and thermal specifications of SMBJ6.5CA/54 remain identical to other SMBJ6.5CA variants.
Is SMBJ6.5CA/54 bidirectional or unidirectional?
SMBJ6.5CA/54 is explicitly bidirectional, as confirmed by the "CA" suffix per Vishay's naming convention. Its breakdown and clamping behavior are symmetrical across both polarities, with no cathode band marking on the SMB package. This allows deployment on AC-coupled lines, differential buses, or any circuit where voltage transients may occur with either polarity - unlike unidirectional "A" variants which require correct orientation.
Does SMBJ6.5CA/54 meet AEC-Q101 qualification?
SMBJ6.5CA/54 itself is not AEC-Q101 qualified; however, the same device is available in AEC-Q101-compliant versions under ordering codes such as SMBJ6.5CAHE3_B/I (halogen-free, RoHS-compliant, and AEC-Q101 qualified). The "/54" suffix refers only to packaging - qualification status depends on the full base part number including the grade suffix (E3, M3, HE3, HM3).
What is the maximum clamping voltage of SMBJ6.5CA/54 under surge conditions?
The maximum clamping voltage (VC) of SMBJ6.5CA/54 is 11.2 V at its rated peak pulse current (IPPM) of 53.6 A, tested with a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage imposed on protected circuitry during worst-case surge events - critical for ensuring compatibility with 12 V-tolerant or 5 V logic interfaces.
Can SMBJ6.5CA/54 be used in place of SMBJ6.5A in a design?
No - SMBJ6.5CA/54 and SMBJ6.5A are not interchangeable without circuit review. SMBJ6.5CA/54 is bidirectional with symmetrical clamping, while SMBJ6.5A is unidirectional and requires correct cathode orientation. Substituting one for the other risks incomplete protection or forward conduction during normal operation. Always verify polarity requirements and transient directionality before replacement.
SMBJ6.5CA/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ6.5CA/54 FAQ
1.How can I place an order for SMBJ6.5CA/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5CA/54 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 SMBJ6.5CA/54 reliable?
The price and inventory of SMBJ6.5CA/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ6.5CA/54 is usually 5 days.
3.What payment methods are accepted for SMBJ6.5CA/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5CA/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5CA/54?
SMBJ6.5CA/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5CA/54 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 SMBJ6.5CA/54?
For technical support, including SMBJ6.5CA/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5CA/54 requirements.
6.How does Aetrix verify that SMBJ6.5CA/54 is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5CA/54 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 SMBJ6.5CA/54 meets industry standards.
7.What is the process for return or replacement of SMBJ6.5CA/54?
All SMBJ6.5CA/54 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5CA/54, 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 SMBJ6.5CA/54 part is unused and in its original packaging.
Return procedure for SMBJ6.5CA/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5CA/54 Tags
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