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Diodes Incorporated SMBJ58CAQ-13-F
- Part No.:
- SMBJ58CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58CAQ-13-F.pdf
- Description:
- TVS DIODE 58VWM 93.6VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:4,128
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Product details
Overview
SMBJ58CAQ-13-F from Diodes Incorporated is a bi-directional automotive-grade transient voltage suppressor (TVS) diode in SMB package, rated for 600W peak pulse power, 58V reverse standoff voltage (VRWM), and 93.6V max clamping voltage (VC) at 6.4A peak pulse current - designed to protect CAN, LIN, and sensor interfaces in 12V/24V vehicle subsystems against ISO7637-2 Pulse 1/2a/3a/3b transients and ISO10605 ESD events.
For engineers reviewing the SMBJ58CAQ-13-F datasheet, SMBJ58CAQ-13-F pinout, SMBJ58CAQ-13-F application, or SMBJ58CAQ-13-F equivalent, key selection criteria include bi-directional clamping symmetry, AEC-Q101 qualification, IATF 16949 manufacturing traceability, RoHS/Green compliance, and validated performance under 10×1000μs surge waveforms per REA standards.
Technical Context
This TVS operates as a voltage-clamped shunt protector: during overvoltage events exceeding 58V, it avalanches symmetrically in both directions to clamp the line within 93.6V, limiting energy dissipation to ≤600W for non-repetitive 10×1000μs pulses. Its bi-directional structure eliminates polarity dependency, enabling direct placement across differential or AC-coupled signal lines like CAN H/L.
Thermally rated for continuous operation from –55°C to +175°C junction temperature, it delivers 5.0W steady-state power dissipation at TL = +75°C and derates linearly at 4.8W/°C above +25°C ambient. The device exhibits <0.5μA reverse leakage at VRWM and 64.4V–71.2V breakdown range at 1.0mA test current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 10×1000μs surges up to this level without failure |
| Reverse Standoff Voltage (VRWM) | 58.0V - maximum continuous working voltage before clamping initiates |
| Clamping Voltage (VC) | 93.6V @ IPP = 6.4A - upper voltage limit imposed on protected circuit during surge |
| Breakdown Voltage (VBR) | 64.4V–71.2V @ IT = 1.0mA - precise avalanche onset range confirming tight tolerance |
| Peak Pulse Current (IPP) | 6.4A - maximum surge current handled at rated clamping voltage |
| Operating Temperature | –55°C to +175°C - supports under-hood and transmission control unit environments |
| AEC-Q101 Qualified | Yes - validated for automotive reliability including HTOL, TCT, and ESD stress testing |
Pinout & Package
Package: SMB (Surface-Mount Small Outline), molded plastic body with UL 94V-0 flammability rating, 0.1g mass, moisture sensitivity level 1 (J-STD-020). Cathode band marking omitted - bi-directional configuration confirmed by "C" suffix in part number.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path (bidirectional) | Connects to ground or low-impedance reference; conducts during negative transients |
| Cathode | Surge return path (bidirectional) | Connects to protected line; conducts during positive transients - functionally identical to Anode due to symmetry |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or differential buses (e.g., CAN, LIN) without polarity concerns |
| ISO7637-2 Pulse 1/2a/3a/3b compliance | Validated for –150V (P1), +112V (P2a), –220V (P3a), +150V (P3b) transients in 12V systems |
| ISO10605 ESD robustness | Withstands ±30kV air/contact discharge per 150pF/330Ω network - exceeds automotive ESD immunity requirements |
| AEC-Q101 qualification & PPAP capability | Manufactured in IATF 16949-certified facilities with full change control - suitable for Tier 1 production release |
| Halogen- and antimony-free "Green" construction | Meets Diodes' definition: Br <900ppm, Cl <900ppm (Br+Cl <1500ppm), Sb <1000ppm |
Applications
| Automotive CAN Bus Protection | Body Control Module (BCM) Inputs |
|---|---|
Use Scenario: Placement across CAN_H/CAN_L lines in gateway ECUs to suppress coupled transients from alternator load dump or relay switching. IC Role / Device Role / Timing Role: Shunt-type transient suppressor providing sub-ns response to fast-rising edges while maintaining bus signal integrity. Use Value: Limits voltage excursion to ≤93.6V during ISO7637-2 Pulse 3b (+150V), preventing PHY layer damage and communication dropout. | Use Scenario: Protection of discrete input pins (e.g., door lock/unlock, trunk release) exposed to harness-level surges. IC Role / Device Role / Timing Role: Primary front-end clamp absorbing >95% of surge energy before reaching MCU GPIO or level-shifter ICs. Use Value: Enables reliable operation under ISO7637-2 Pulse 1 (–150V) without requiring additional series impedance or filtering. |
| Engine Control Unit Sensor Lines | Infotainment Display Interface |
Use Scenario: Guarding analog sensor inputs (e.g., MAP, O2, coolant temp) connected to engine bay harnesses subject to ignition noise and load dump. IC Role / Device Role / Timing Role: Low-capacitance (<100pF) bi-directional clamp preserving signal fidelity of DC-coupled sensors. Use Value: Maintains accuracy of 0–5V sensor outputs during 10×1000μs transients by clamping at 93.6V with <0.5μA leakage at 58V. | Use Scenario: Shielding LVDS or FPD-Link III video/data lines between head unit and TFT display against ESD and board-level coupling. IC Role / Device Role / Timing Role: Fast-response TVS placed adjacent to connector to divert ESD current before entering serializer/deserializer ICs. Use Value: Survives ±30kV contact discharge (ISO10605) without degradation, ensuring display uptime in service environments. |
Availability
SMBJ58CAQ-13-F is available at Aetrix Electronics and suitable for automotive infotainment systems, engine control units, body electronics modules, and ADAS camera links requiring stable component supply with full AEC-Q101 traceability and IATF 16949 sourcing.
Supply support for SMBJ58CAQ-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 applications.
The SMBJ(AQ) series is engineered specifically for automotive transient suppression - combining AEC-Q101 qualification, ISO7637/ISO10605 compliance, and SMB footprint compatibility to simplify design-in for Tier 1 suppliers.
FAQ
What does the "C" in SMBJ58CAQ-13-F signify?
The "C" suffix denotes bi-directional functionality: the device clamps symmetrically for both positive and negative transients, making it suitable for AC-coupled or differential signal lines such as CAN, LIN, or sensor bridges. This differs from uni-directional variants (e.g., SMBJ58AQ-13-F) that require correct anode/cathode orientation relative to ground.
How does SMBJ58CAQ-13-F differ from standard SMBJ58A in automotive use?
SMBJ58CAQ-13-F includes AEC-Q101 qualification, PPAP documentation support, and manufacturing in IATF 16949-certified facilities - mandatory for automotive production. Standard SMBJ58A lacks these certifications and is intended for commercial applications only, with no guaranteed process control or stress-test validation for automotive environments.
Can SMBJ58CAQ-13-F be used in 24V truck systems?
Yes - its 58V VRWM and 93.6V clamping voltage are compatible with 24V nominal systems where load dump peaks reach up to +120V. It meets ISO7637-2 Pulse 1 (–150V) and Pulse 3b (+150V) requirements, and its –55°C to +175°C operating range supports under-hood deployment in heavy-duty vehicles.
Is thermal derating required when mounting near heat sources?
Yes - the device derates at 4.8W/°C above +25°C ambient and must maintain lead temperature ≤+75°C for full 5.0W steady-state dissipation. In high-temperature zones (e.g., near power converters), PCB copper pour, thermal vias, or reduced surge duty cycle must be implemented to avoid exceeding TJ = +175°C.
SMBJ58CAQ-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):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.6V
- Current - Peak Pulse (10/1000µs):
- 6.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
SMBJ58CAQ-13-F FAQ
1.How can I place an order for SMBJ58CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58CAQ-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 SMBJ58CAQ-13-F reliable?
The price and inventory of SMBJ58CAQ-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 SMBJ58CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ58CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58CAQ-13-F?
SMBJ58CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58CAQ-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 SMBJ58CAQ-13-F?
For technical support, including SMBJ58CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58CAQ-13-F requirements.
6.How does Aetrix verify that SMBJ58CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ58CAQ-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 SMBJ58CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ58CAQ-13-F?
All SMBJ58CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58CAQ-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 SMBJ58CAQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ58CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58CAQ-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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