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Diodes Incorporated SMBJ58AQ-13-F
- Part No.:
- SMBJ58AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58AQ-13-F.pdf
- Description:
- TVS DIODE 58VWM 93.6VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:280
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Product details
Overview
SMBJ58AQ-13-F from Diodes Incorporated is a unidirectional 600W automotive-grade transient voltage suppressor (TVS) diode with 58V reverse standoff voltage, 93.6V max clamping voltage at 6.4A peak pulse current, and AEC-Q101 qualification for under-hood electronics. It protects CAN/LIN bus interfaces, body control modules, and power supply rails against ISO7637-2 Pulse 1/2a/3a/3b transients and ISO10605 ESD events.
For engineers reviewing the SMBJ58AQ-13-F datasheet, SMBJ58AQ-13-F pinout, SMBJ58AQ-13-F application, or SMBJ58AQ-13-F equivalent, this device delivers verified clamping performance in 8.3ms surge waveforms, supports IATF 16949-compliant production, and meets stringent automotive EMC immunity requirements including ±150V Pulse 2a and −220V Pulse 3a.
Technical Context
This TVS diode operates as a unidirectional clamping device in series with power or signal lines, activating above 58V VRWM to shunt surge energy to ground. Its 600W peak pulse power rating is defined per 10×1000μs waveform, with thermal derating starting at +25°C (4.8W/°C).
Designed for automotive environments, it features −55°C to +175°C operating junction temperature range, 100A non-repetitive forward surge capability, and RoHS-compliant matte tin plating compatible with lead-free reflow profiles per MIL-STD-202.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - Sustains 10×1000μs transients without failure in automotive load-dump scenarios |
| Reverse Standoff Voltage | 58V - Blocks normal 12V/24V system operation while triggering only during overvoltage events |
| Max Clamping Voltage | 93.6V @ 6.4A - Limits downstream IC voltage to safe level during ISO7637-2 Pulse 1 (−150V) |
| Breakdown Voltage | 64.4–71.2V @ 1mA - Ensures reliable turn-on margin above VRWM for robust noise immunity |
| Leakage Current | <0.5µA @ 58V - Prevents battery drain in always-on vehicle modules |
| Operating Temperature | −55°C to +175°C - Supports placement near engines, inverters, and other high-heat zones |
Pinout & Package
Package: SMB (Surface-Mount Bimetal), molded plastic UL 94V-0 housing, 0.1g weight, moisture sensitivity level 1. Cathode band denotes polarity on unidirectional variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path | Connected to ground or low-impedance chassis return to complete clamping loop |
| Cathode | Protected line input | Connected to power rail or signal line requiring protection; cathode band marks this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use with PPAP documentation and IATF 16949 manufacturing control |
| ISO7637-2 compliance | Withstands Pulse 1 (−150V), Pulse 2a (+112V), Pulse 3a (−220V), Pulse 3b (+150V) without degradation |
| ISO10605 ESD rating | 30kV air/contact discharge tolerance enables direct integration into infotainment and ADAS sensor interfaces |
| Lead-free & green construction | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb) meets global environmental mandates |
Applications
| Infotainment Power Rail Protection | CAN FD Transceiver Interface |
|---|---|
Use Scenario: 12V supply line feeding head unit MCU and display drivers in passenger cabin. IC Role / Device Role / Timing Role: Unidirectional TVS clamps load dump surges before they reach LDOs and PMICs. Use Value: Prevents latch-up or burnout of 3.3V/5V regulators during alternator field decay events. | Use Scenario: CAN FD data lines (CANH/CANL) connecting gateway ECU to radar sensors. IC Role / Device Role / Timing Role: Bidirectional clamping (using SMBJ58CAQ variant) limits ESD-induced common-mode spikes. Use Value: Maintains signal integrity below 1Vpp differential noise floor during 30kV contact discharge. |
| Body Control Module Input | Electric Power Steering (EPS) Sensor Supply |
Use Scenario: 24V input to BCM controlling door locks, lighting, and HVAC actuators. IC Role / Device Role / Timing Role: Primary surge suppression stage ahead of DC-DC converter input. Use Value: Survives repeated ISO7637-2 Pulse 3b (+150V) transients from relay switching in harness bundles. | Use Scenario: 5V reference supply for torque and position sensors inside EPS motor housing. IC Role / Device Role / Timing Role: Low-leakage TVS ensures stable bias voltage during engine cranking dips. Use Value: Sub-0.5µA IR prevents voltage droop that would corrupt analog sensor ADC readings. |
Availability
SMBJ58AQ-13-F is available at Aetrix Electronics and suitable for automotive infotainment systems, body control modules, electric power steering ECUs, and ADAS camera power supplies requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for SMBJ58AQ-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 integrated circuits, specializing in high-reliability components for automotive, industrial, and computing applications.
The SMBJ(AQ) series is engineered specifically for automotive transient suppression, delivering AEC-Q101-qualified TVS diodes with validated ISO7637-2 and ISO10605 performance in compact SMB packages.
FAQ
What is the difference between SMBJ58AQ-13-F and SMBJ58CAQ-13-F?
The "AQ" suffix denotes AEC-Q101 qualification and automotive PPAP capability; the "C" in SMBJ58CAQ indicates bi-directional configuration. SMBJ58AQ-13-F is unidirectional with cathode-anode polarity, while SMBJ58CAQ-13-F suppresses surges in both directions and lacks a cathode band marking. Both share identical VRWM, clamping, and power ratings but differ in circuit topology requirements.
Can SMBJ58AQ-13-F be used in 48V mild-hybrid systems?
No - its 58V VRWM and 93.6V clamping voltage are insufficient for 48V nominal systems where load dump can exceed 100V. For 48V architectures, Diodes recommends SMBJ100AQ-13-F (100V VRWM, 162V clamping) or SMBJ130AQ-13-F (130V VRWM, 209V clamping), both qualified to the same AEC-Q101 standard and package form factor.
Does SMBJ58AQ-13-F require heatsinking in typical automotive PCB layouts?
No external heatsink is required. Its 5.0W steady-state power dissipation at TL = +75°C and SMB package thermal resistance (junction-to-lead ≈ 25°C/W) allow safe operation with standard 1oz copper pads and 2–4 thermal vias. Derating curves confirm full 600W pulse capability at ambient temperatures up to +85°C when mounted per recommended pad layout.
How does SMBJ58AQ-13-F compare to SMAJ58A in terms of surge handling?
SMBJ58AQ-13-F offers 600W peak pulse power versus SMAJ58A's 400W, enabling higher surge current tolerance (6.4A vs 4.3A at same clamping voltage). The SMB package also provides 20% lower thermal resistance than SMA, improving reliability in sustained transient conditions. Both are AEC-Q101 qualified, but SMBJ's larger body improves mechanical robustness in vibration-prone automotive mounting locations.
SMBJ58AQ-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:
- 1
- Bidirectional Channels:
- -
- 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
SMBJ58AQ-13-F FAQ
1.How can I place an order for SMBJ58AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58AQ-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 SMBJ58AQ-13-F reliable?
The price and inventory of SMBJ58AQ-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 SMBJ58AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ58AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58AQ-13-F?
SMBJ58AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58AQ-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 SMBJ58AQ-13-F?
For technical support, including SMBJ58AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58AQ-13-F requirements.
6.How does Aetrix verify that SMBJ58AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ58AQ-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 SMBJ58AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ58AQ-13-F?
All SMBJ58AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58AQ-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 SMBJ58AQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ58AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58AQ-13-F Tags
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