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Diodes Incorporated SMBJ6.5CA-13-F
- Part No.:
- SMBJ6.5CA-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5CA-13-F.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:116,922
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Product details
Overview
SMBJ6.5CA-13-F from Diodes Incorporated is a bi-directional 600W transient voltage suppressor (TVS) diode in SMB package, designed for overvoltage protection of DC power lines and signal interfaces. It features 6.5V reverse standoff voltage (VRWM), 7.22–8.30V breakdown voltage (VBR) at 10mA, 11.2V max clamping voltage (VC) at 53.6A peak pulse current, and operates from –55°C to +150°C - deployed in industrial power supplies and automotive body control modules.
For engineers reviewing the SMBJ6.5CA-13-F datasheet, SMBJ6.5CA-13-F pinout, SMBJ6.5CA-13-F application, or SMBJ6.5CA-13-F equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD tolerance, unidirectional/bi-directional polarity match with circuit topology, and SMB package thermal derating under sustained surge conditions.
Technical Context
This bi-directional TVS diode functions as a voltage-clamped shunt protector: during ESD or lightning-induced transients exceeding VRWM, it avalanches symmetrically in both polarities to limit voltage across downstream components. Its glass-passivated die ensures stable breakdown characteristics and low leakage (<500µA at VRWM).
Designed for non-repetitive 8.3ms half-sine surges, it delivers 600W peak pulse power with 4.8W/°C thermal derating above +25°C ambient and supports up to 100A forward surge current - validated per REA 10×1000µs waveform standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - limits transient energy dissipation without failure under single 8.3ms surges |
| Reverse Standoff Voltage | 6.5V - maximum continuous DC or RMS voltage before clamping activation |
| Breakdown Voltage | 7.22–8.30V @ 10mA - defines onset of avalanche conduction with tight tolerance |
| Max Clamping Voltage | 11.2V @ 53.6A - upper voltage bound seen by protected circuit during rated surge |
| Peak Pulse Current | 53.6A - maximum surge current sustainable at specified clamping voltage |
| Leakage Current | <500µA @ 6.5V - ensures minimal standby power loss and signal integrity |
| Operating Temp Range | –55°C to +150°C - supports under-hood automotive and industrial ambient extremes |
Pinout & Package
Package: SMB (Surface Mount Body), molded plastic case per UL 94V-0, 0.1g mass, lead-free matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bi-directional) | Transient current path | No polarity marking; symmetrical terminals conduct equally in either direction during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| 600W Peak Pulse Power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4kV/2Ω) on 12V rails |
| Glass Passivated Die | Ensures stable VBR over temperature and long-term reliability in humid environments |
| Bi-directional Symmetry | Eliminates polarity concerns in AC-coupled or floating signal lines like RS-485 or CAN bus |
| RoHS & Halogen-Free | Meets IPC-1752A material declaration requirements for green electronics manufacturing |
Applications
| Industrial Power Input Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 12V DC input line exposed to load dump and jump-start transients in programmable logic controllers. IC Role / Device Role / Timing Role: Shunt TVS device clamping voltage to protect upstream DC-DC converter ICs and microcontroller power pins. Use Value: 11.2V clamping ensures protected ICs remain below absolute maximum ratings during 100V/100ms load dump events. |
Use Scenario: LIN bus transceiver interface subjected to ISO 7637-2 pulse 1 and pulse 2a transients. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between LIN PHY and connector to absorb negative and positive spikes. Use Value: Symmetric clamping prevents reverse-bias damage to transceiver ESD structures while maintaining <1µA leakage at 12V nominal. |
| RS-485 Data Line Protection | Smart Meter Communication Port |
Use Scenario: Full-duplex RS-485 transceivers connected to long outdoor cables vulnerable to induced lightning surges. IC Role / Device Role / Timing Role: Paired bi-directional TVS devices on A/B differential lines to clamp common-mode transients. Use Value: 6.5V VRWM allows operation with ±7V transceiver common-mode range while limiting clamping to 11.2V. |
Use Scenario: PLC or RF communication port in utility smart meters exposed to conducted surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary overvoltage suppression element on meter's external interface supply rail. Use Value: 600W rating sustains multiple 2kV surges without degradation, supporting 15-year field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5A-13-F | Uni-directional; cathode-marked; 3.5V forward voltage vs. symmetric bi-directional conduction | Requires correct polarity alignment; unsuitable for AC or floating lines | Select only when protecting unidirectional DC rails with known polarity and no reverse-voltage risk |
| SMAJ6.5CA | Same electrical specs but SMA package; 400W peak power rating; smaller footprint and lower thermal mass | Limited surge endurance in high-energy systems; requires tighter layout for thermal relief | Prefer for space-constrained designs where 400W surge margin suffices and PCB area is critical |
Compared with SMBJ6.5CA-13-F, the uni-directional SMBJ6.5A-13-F demands strict polarity routing but offers slightly lower forward voltage, while the SMAJ6.5CA trades 33% peak power headroom for 30% smaller board area - both require revalidation of clamping margin and thermal performance in the target layout.
Availability
SMBJ6.5CA-13-F is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control modules, RS-485 data line hardening, and smart meter communication ports requiring stable component supply and long-lifecycle support.
Supply support for SMBJ6.5CA-13-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.
This part belongs to Diodes' SMBJ series of surface-mount TVS diodes, engineered specifically for high-energy transient suppression in automotive, industrial, and communications infrastructure where reliability under repeated surge stress is mandatory.
FAQ
What does the "C" suffix in SMBJ6.5CA-13-F indicate?
The "C" denotes bi-directional configuration: the device clamps voltage symmetrically for both positive and negative transients, with no anode/cathode polarity marking. This differs from uni-directional variants (e.g., SMBJ6.5A-13-F) that require correct orientation and only clamp in one polarity.
Can SMBJ6.5CA-13-F be used in place of a uni-directional TVS on a DC rail?
Yes, but with trade-offs: bi-directional operation eliminates polarity concerns and protects against reverse-voltage faults, yet its leakage may be higher than uni-directional equivalents at voltages near VRWM. Verify system-level reverse-bias tolerance before substitution.
How does the SMB package compare thermally to DO-214AA (SMC)?
The SMB package has lower thermal resistance than SMC due to shorter leadframe paths and smaller die attach area, resulting in ~15% lower steady-state power derating. At 75°C lead temperature, SMBJ6.5CA-13-F sustains 5.0W average power versus ~6.5W for equivalent SMC devices - verify PCB copper pour and airflow in high-power applications.
Is SMBJ6.5CA-13-F compliant with AEC-Q200 for automotive use?
No - this part is qualified to commercial temperature grade (–55°C to +150°C operating range) but lacks AEC-Q200 stress testing certification. For automotive safety-critical applications, Diodes offers the AEC-Q200-qualified P6SMBJ6.5CA variant with identical electrical specs and enhanced reliability screening.
SMBJ6.5CA-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AA, SMB
- Series:
- SMBJ
- 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:
- SMB
SMBJ6.5CA-13-F FAQ
1.How can I place an order for SMBJ6.5CA-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5CA-13-F 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-13-F reliable?
The price and inventory of SMBJ6.5CA-13-F 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-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ6.5CA-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5CA-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5CA-13-F?
SMBJ6.5CA-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5CA-13-F 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-13-F?
For technical support, including SMBJ6.5CA-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5CA-13-F requirements.
6.How does Aetrix verify that SMBJ6.5CA-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5CA-13-F 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-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ6.5CA-13-F?
All SMBJ6.5CA-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5CA-13-F, 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-13-F part is unused and in its original packaging.
Return procedure for SMBJ6.5CA-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5CA-13-F Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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