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Diodes Incorporated SMBJ6.5CAQ-13-F
- Part No.:
- SMBJ6.5CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.5CAQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMB
- Quantity:
- Payment:
- Shipping:
Inventory:5,565
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Product details
Overview
SMBJ6.5CAQ-13-F from Diodes Incorporated is a bi-directional 600W surface-mount transient voltage suppressor (TVS) designed for automotive circuit protection. It features a 6.5V reverse standoff voltage (VRWM), 7.22–7.98V breakdown voltage (VBR), 11.2V clamping voltage (VC) at 53.6A peak pulse current, and AEC-Q101 qualification for under-hood applications such as LIN bus interfaces and sensor power rails.
For engineers reviewing the SMBJ6.5CAQ-13-F datasheet, SMBJ6.5CAQ-13-F pinout, SMBJ6.5CAQ-13-F application, or SMBJ6.5CAQ-13-F equivalent, key selection criteria include ISO10605 ESD robustness (±30kV), ISO7637-2 pulse immunity (Pulse 1/2a/3a/3b), bi-directional clamping symmetry, SMB package thermal performance, and RoHS/Green compliance for automotive Tier-1 supply chains.
Technical Context
This bi-directional TVS diode operates symmetrically across both polarities to clamp transients without polarity dependency-critical for protecting bidirectional data lines like CAN FD or LIN in 12V automotive systems. Its 600W peak pulse power rating is validated per 10×1000μs waveform, with clamping response time <1ns and junction capacitance <100pF at 1MHz (zero bias).
The device sustains 100A non-repetitive forward surge current (8.3ms half-sine) and maintains ≤500µA reverse leakage at VRWM, enabling stable operation in high-temperature environments up to +175°C junction temperature. Its IATF 16949 manufacturing ensures traceable lot control and PPAP readiness for OEM production programs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - Clamps ISO7637-2 Pulse 3b (+150V) without failure |
| Reverse Standoff Voltage | 6.5V - Matches nominal 5V logic rail or LIN bus operating range |
| Clamping Voltage | 11.2V @ 53.6A - Limits downstream IC stress below 12V absolute max ratings |
| Breakdown Voltage | 7.22–7.98V @ 10mA - Ensures reliable turn-on before system overvoltage damage |
| ESD Rating | ±30kV contact/air discharge (ISO10605) - Survives assembly-line ESD events |
| Junction Temp Range | −55°C to +175°C - Supports engine compartment placement near powertrain ECUs |
| Steady-State Power | 5.0W @ TL = +75°C - Enables continuous dissipation in convection-cooled PCB layouts |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic body with UL 94V-0 flammability rating and matte tin lead finish. Moisture sensitivity level 1 (J-STD-020). Weight ≈ 0.1g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Cathode Band Absent) | Bi-directional terminal | No polarity marking - symmetrical clamping between either terminal and ground |
| Cathode (Cathode Band Absent) | Bi-directional terminal | Identical to Anode; terminals interchangeable in layout due to bi-directional architecture |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive use including temperature cycling, HTRB, and ESD stress per JESD22 |
| Bi-directional Clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity constraints |
| Lead-Free & Halogen-Free | RoHS 3 compliant with <900ppm Br+Cl and <1000ppm Sb - meets EU ELV and OEM green material mandates |
| Low Clamping Ratio | VC/VRWM = 1.72 - tighter voltage margin than standard 1.8–2.0 ratio TVS devices, reducing protected IC margin overhead |
Applications
| Automotive LIN Bus Protection | Engine Control Unit (ECU) Power Input |
|---|---|
Use Scenario: Protecting LIN transceivers against load dump and jump-start surges in body control modules. IC Role / Device Role / Timing Role: Bi-directional TVS placed between LIN line and ground, clamping transients within 1ns to prevent transceiver latch-up. Use Value: Maintains LIN communication integrity during ISO7637-2 Pulse 2a (+112V) and Pulse 3b (+150V) without signal distortion or reset. | Use Scenario: Safeguarding 5V microcontroller power rails in under-hood ECUs exposed to alternator ripple and battery disconnection spikes. IC Role / Device Role / Timing Role: Primary clamping device on VDD input, coordinated with bulk capacitance to absorb 600W pulses. Use Value: Limits rail voltage to ≤11.2V during 53.6A transients, preventing brown-out or internal LDO overvoltage failure. |
| Passive Entry System Antenna Line | Automotive Camera Module Power Supply |
Use Scenario: Shielding LF antenna traces (125kHz) from ESD events during key fob handling and assembly. IC Role / Device Role / Timing Role: Low-capacitance bi-directional TVS shunting antenna port to chassis ground. Use Value: Delivers ±30kV ISO10605 protection while adding <100pF parasitic capacitance - negligible impact on 125kHz resonance. | Use Scenario: Securing 12V input to image sensor power management ICs in ADAS camera housings. IC Role / Device Role / Timing Role: Front-end transient suppressor upstream of DC-DC converter, rated for +175°C ambient. Use Value: Withstands repeated Pulse 1 (−150V) events during vehicle start-stop cycles without parametric shift or degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA | Same electrical specs but not AEC-Q101 qualified; no PPAP support or IATF 16949 traceability | Restricted to non-automotive industrial or consumer designs | Select only if automotive qualification and supply chain documentation are unnecessary |
| TPSMBS6.5C | Same SMB package and 6.5V VRWM, but lower 400W peak power and higher 12.5V clamping voltage | Limited to lower-energy transients; unsuitable for ISO7637-2 Pulse 1 or 3a | Acceptable only for cost-sensitive non-critical subsystems where full 600W immunity is not required |
Compared with SMBJ6.5CA and TPSMBS6.5C, SMBJ6.5CAQ-13-F uniquely delivers AEC-Q101 validation, 600W pulse handling, and 11.2V clamping in a single automotive-grade component-enabling direct integration into safety-critical power and data lines without derating or secondary protection layers.
Availability
SMBJ6.5CAQ-13-F is available at Aetrix Electronics and suitable for automotive electronics, engine control units, and ADAS camera modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMBJ6.5CAQ-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, specializing in high-reliability components for automotive, industrial, and computing markets.
The SMBJ(AQ) series is engineered specifically for automotive transient suppression, combining AEC-Q101 reliability, ISO7637/ISO10605 compliance, and SMB thermal efficiency to replace legacy DO-15 and SMA packages in space-constrained ECUs.
FAQ
What does the "AQ" suffix signify in SMBJ6.5CAQ-13-F?
The "AQ" suffix denotes AEC-Q101 qualification, IATF 16949 manufacturing, PPAP capability, and automotive-specific change control. It confirms full compliance with stress tests including HTGB, H3TRB, and ESD per JESD22, distinguishing it from commercial-grade SMBJ6.5CA variants.
Can SMBJ6.5CAQ-13-F be used in unidirectional configurations?
No - the "C" in SMBJ6.5CAQ indicates bi-directional construction, with symmetrical clamping characteristics and no cathode band marking. For unidirectional applications requiring asymmetric clamping, select SMBJ6.5AQ-13-F instead, which includes a visible cathode band and different IV curve behavior.
What is the maximum allowable PCB trace length between SMBJ6.5CAQ-13-F and protected IC?
To maintain sub-1ns clamping response, PCB trace inductance must remain below 10nH. This typically limits trace length to ≤10mm with 0.3mm width and 0.2mm spacing to ground plane. Longer traces increase let-through voltage and risk IC damage during fast transients like ESD.
How does SMBJ6.5CAQ-13-F perform under repeated ISO7637-2 Pulse 3a exposure?
Per DS40740 Rev. 15, the device withstands ≥1000 non-repetitive 8.3ms pulses at −220V (Pulse 3a) with no parameter shift when operated within derated power limits (≤4.8W/°C above +25°C ambient). Thermal design must ensure TJ remains ≤+175°C during burst sequences.
SMBJ6.5CAQ-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
SMBJ6.5CAQ-13-F FAQ
1.How can I place an order for SMBJ6.5CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.5CAQ-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 SMBJ6.5CAQ-13-F reliable?
The price and inventory of SMBJ6.5CAQ-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 SMBJ6.5CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ6.5CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.5CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.5CAQ-13-F?
SMBJ6.5CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.5CAQ-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 SMBJ6.5CAQ-13-F?
For technical support, including SMBJ6.5CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.5CAQ-13-F requirements.
6.How does Aetrix verify that SMBJ6.5CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ6.5CAQ-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 SMBJ6.5CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ6.5CAQ-13-F?
All SMBJ6.5CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.5CAQ-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 SMBJ6.5CAQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ6.5CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.5CAQ-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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Diodes Incorporated
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Diodes Incorporated
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