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Diodes Incorporated SMBJ36AQ-13-F
- Part No.:
- SMBJ36AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36AQ-13-F.pdf
- Description:
- TVS DIODE 36VWM 58.1VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:1,286
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Product details
Overview
SMBJ36AQ-13-F from Diodes Incorporated is a unidirectional 600W surface-mount automotive transient voltage suppressor (TVS) diode with 36V reverse standoff voltage, 40.0V minimum breakdown voltage, and 58.1V maximum clamping voltage at 10.3A peak pulse current. It is AEC-Q101 qualified and designed to protect CAN, LIN, and power-line circuits in engine control units and body electronics against ISO7637-2 Pulse 1/2a/3a/3b transients and ISO10605 ESD events.
For engineers reviewing the SMBJ36AQ-13-F datasheet, SMBJ36AQ-13-F pinout, SMBJ36AQ-13-F application, or SMBJ36AQ-13-F equivalent, this part is selected for robust automotive-grade surge protection where clamping performance, low leakage (<0.5µA @ 36V), and IATF 16949 traceable manufacturing are mandatory.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: under normal bias it presents <0.5µA reverse leakage at VRWM = 36V; during transients, it avalanches at VBR ≥40.0V (1mA test current) and clamps to ≤58.1V at IPP = 10.3A (10×1000µs waveform). Its thermal design supports continuous operation from –55°C to +175°C junction temperature.
The device uses silicon avalanche junction technology in an SMB package with cathode band polarity marking. It meets ISO7637-2 Pulse 1 (–150V), Pulse 2a (+112V), Pulse 3a (–220V), and Pulse 3b (+150V), and passes ISO10605 30kV air/contact discharge testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 10×1000µs surges without failure under defined thermal conditions |
| Reverse Standoff Voltage (VRWM) | 36V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 40.0V min @ 1mA - guaranteed avalanche initiation threshold for reliable clamping onset |
| Clamping Voltage (VC) | 58.1V max @ 10.3A - limits downstream circuit voltage during worst-case transient |
| Peak Pulse Current (IPP) | 10.3A @ 10×1000µs - quantifies surge-handling capacity under standardized waveform |
| Leakage Current (IR) | 0.5µA max @ 36V - ensures minimal power loss and signal integrity in standby state |
| Operating Temperature | –55°C to +175°C - enables placement near high-temperature engine compartments or power stages |
Pinout & Package
Package: SMB (Surface-Mount Small Outline), molded plastic UL 94V-0, 0.1g mass, moisture sensitivity level 1. Cathode band denotes terminal polarity for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to ground or low-impedance reference; completes clamping loop during overvoltage |
| Cathode | Protected line connection | Connected to protected signal/power rail; blocks reverse leakage up to 36V, avalanches during positive transients |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use with PPAP capability 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 and contact discharge immunity per 150pF/330Ω network |
| Lead-free & green construction | RoHS 3 compliant, halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb) |
| Steady-state power rating | 5.0W @ TL = +75°C - supports continuous dissipation in thermally constrained PCB layouts |
Applications
| Engine Control Unit (ECU) Power Input | CAN Bus Transceiver Protection |
|---|---|
Use Scenario: 12V battery-supplied microcontroller power rail exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and GND to clamp negative-going transients (Pulse 1) and positive spikes (Pulse 2a/3b). Use Value: Limits voltage excursion to ≤58.1V, protecting 3.3V/5V LDOs and MCU I/Os without adding series impedance or propagation delay. |
Use Scenario: High-speed CANH/CANL lines interfacing with external connectors subject to ESD and coupled noise. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices (one per line) referenced to common ground, suppressing fast-rising ESD pulses and slow surges. Use Value: Maintains signal integrity with <10pF typical capacitance while surviving 30kV contact discharge and ISO7637-2 Pulse 3a (–220V). |
| Body Control Module (BCM) LIN Bus | Automotive Lighting Driver Input |
Use Scenario: Single-wire LIN bus node powered from vehicle battery, connected via external harness. IC Role / Device Role / Timing Role: TVS on LIN line to ground, absorbing induced transients from nearby solenoid switching or relay bounce. Use Value: Clamps to 58.1V within nanoseconds, preventing latch-up or damage to LIN transceivers rated for ≤40V absolute maximum. |
Use Scenario: LED driver IC input subjected to load dump and jump-start surges in headlamp or tail lamp modules. IC Role / Device Role / Timing Role: Primary overvoltage clamp on HV input rail, upstream of buck controller and gate drivers. Use Value: Absorbs 600W peak energy without failure, enabling compact thermal design and eliminating need for secondary crowbar circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-13-F | Same electrical specs but not AEC-Q101 qualified; RoHS-compliant but lacks PPAP documentation and IATF 16949 traceability | Acceptable for non-safety-critical industrial or consumer designs; unsuitable for Tier-1 automotive BOMs requiring change control | Select only if automotive qualification is not required and cost is prioritized over supply chain auditability |
| SMCJ36A-Q | Higher 1500W peak power rating in larger SMC package; identical VRWM/VBR/VC but 28.5A IPP; higher thermal mass | Better suited for high-energy transients (e.g., 24V commercial vehicle load dump); requires larger PCB footprint and different layout | Choose when system-level surge testing exceeds 600W requirements or when board space allows SMC footprint |
Compared with SMBJ36A-13-F, this part adds AEC-Q101 validation and full automotive supply chain support; compared with SMCJ36A-Q, it trades peak power for compact SMB size-ideal for space-constrained ECUs where 600W suffices.
Availability
SMBJ36AQ-13-F is available at Aetrix Electronics and suitable for engine control units, CAN/LIN bus nodes, body control modules, and automotive lighting systems requiring stable component supply across multi-year production cycles.
Supply support for SMBJ36AQ-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.
This device belongs to Diodes' AEC-Q101-qualified SMBJ-AQ automotive TVS family, engineered specifically for ISO7637-2 and ISO10605 compliance in harsh-temperature vehicle subsystems.
FAQ
What is the polarity configuration of SMBJ36AQ-13-F?
SMBJ36AQ-13-F is a unidirectional TVS diode with cathode band marking. The cathode terminal connects to the protected line (e.g., CANH, VBAT), and the anode connects to ground. It blocks reverse current up to 36V and conducts only during positive overvoltage events on the cathode side.
Does this TVS require external series impedance for optimal clamping?
No external series resistor or inductor is required for basic clamping function. However, a small series ferrite bead (e.g., 60Ω @ 100MHz) is recommended between the TVS cathode and protected IC to damp high-frequency ringing and reduce stress on the avalanche junction during fast ESD events.
How does SMBJ36AQ-13-F perform under repeated transient stress?
It is rated for non-repetitive pulses only: maximum 4 pulses per minute at 8.3ms half-sine waveform. For repetitive surges, derating per Figure 6 applies-e.g., at +100°C ambient, peak power drops to ~65% of 600W. Continuous operation relies on its 5.0W steady-state rating at lead temperature ≤+75°C.
Can SMBJ36AQ-13-F be used in bidirectional signal lines like RS-485?
No-it is unidirectional only. For bidirectional data lines, use the bi-directional variant SMBJ36CAQ-13-F (marked with "C" suffix), which provides symmetrical clamping for ±36V standoff and equal VC in both polarities, essential for differential bus protection.
SMBJ36AQ-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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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
SMBJ36AQ-13-F FAQ
1.How can I place an order for SMBJ36AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36AQ-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 SMBJ36AQ-13-F reliable?
The price and inventory of SMBJ36AQ-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 SMBJ36AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ36AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36AQ-13-F?
SMBJ36AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36AQ-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 SMBJ36AQ-13-F?
For technical support, including SMBJ36AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36AQ-13-F requirements.
6.How does Aetrix verify that SMBJ36AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ36AQ-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 SMBJ36AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ36AQ-13-F?
All SMBJ36AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36AQ-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 SMBJ36AQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ36AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36AQ-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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Diodes Incorporated
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