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Diodes Incorporated SMBJ36A-13-F
- Part No.:
- SMBJ36A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36A-13-F.pdf
- Description:
- TVS DIODE 36VWM 58.1VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:40,653
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Product details
Overview
SMBJ36A-13-F from Diodes Incorporated is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power lines and signal interfaces. It features a 36V reverse standoff voltage (VRWM), 40.0V minimum breakdown voltage (VBR), 58.1V maximum clamping voltage (VC) at 10.3A peak pulse current, and SMB package with JEDEC-standard footprint. It is deployed in industrial power supplies to protect downstream DC-DC converters from induced surges.
For engineers reviewing the SMBJ36A-13-F datasheet, SMBJ36A-13-F pinout, SMBJ36A-13-F application, or SMBJ36A-13-F equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD rails, peak pulse current capability under IEC 61000-4-5 surge waveforms, thermal derating above +25°C, and compatibility with automated SMT reflow profiles for SMB packages.
Technical Context
This TVS operates as a voltage-clamped crowbar device: under normal bias (VRWM ≤ 36V), leakage remains ≤5.0µA; when transient voltage exceeds VBR (40.0–46.0V), it avalanches into low-impedance conduction within <1ns, limiting voltage across protected circuitry to ≤58.1V at 10.3A. Its glass-passivated die ensures stable avalanche characteristics and long-term reliability under repetitive surge stress.
The SMBJ36A-13-F is rated for non-repetitive 8.3ms half-sine surges up to 100A (IFSM), with steady-state power dissipation of 5.0W at TL = +75°C and full operational junction temperature range from –55°C to +150°C - enabling use in harsh ambient environments such as factory automation controllers and outdoor telecom equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single IEC 61000-4-5 Level 4 (4kV/2Ω) surge without failure |
| Reverse Standoff Voltage | 36V - maximum continuous DC operating voltage before leakage rises significantly |
| Breakdown Voltage | 40.0–46.0V @ 1.0mA - defines precise avalanche initiation threshold for predictable clamping onset |
| Clamping Voltage | 58.1V @ 10.3A - limits transient voltage seen by downstream 3.3V/5V/12V logic or analog circuits |
| Leakage Current | ≤5.0µA @ 36V - negligible loading on 24V/48V supply rails during normal operation |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMT outline compatible with IPC-7351B footprint |
| Operating Temperature | –55°C to +150°C - supports deployment in automotive engine bays and industrial motor drives |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with UL 94V-0 flammability rating, matte tin-plated terminals, 0.1g mass. Cathode band denotes polarity for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to system ground or low-impedance reference plane to complete surge current loop |
| Cathode | Protected line connection | Connected to input rail (e.g., 24V DC bus); clamps positive transients to ground via avalanche conduction |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse power | Enables robust protection against high-energy lightning-induced surges per IEC 61000-4-5 |
| Glass-passivated die | Ensures stable VBR and low parameter drift over 10+ years of field operation |
| Lead-free, RoHS-compliant finish | Meets global environmental regulations and supports Pb-free reflow soldering (JEDEC J-STD-020) |
| Moisture sensitivity level 1 | Eliminates need for dry-packaging or baking prior to assembly - reduces manufacturing overhead |
| UL 94V-0 flammability rating | Prevents flame propagation in safety-critical industrial enclosures and power distribution units |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Protects 24V sensor input channels from load dump and inductive switching transients in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between field-side terminal and isolated signal conditioner IC. Use Value: Clamps 100V/10A transients to ≤58.1V, preserving integrity of ±10V analog front-end op-amps and ADC references. |
Use Scenario: Shields LIN bus transceivers and microcontroller GPIOs from battery line disturbances during alternator load dump events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12V supply rail feeding body control module sub-circuits. Use Value: Limits voltage excursion to 58.1V within 1ns, preventing latch-up in 5V LDO regulators and CAN/LIN PHYs. |
| Telecom Power Feeds | Renewable Energy Inverters |
Use Scenario: Guards PoE-powered Ethernet switch ports against ESD and fast-rising surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Secondary-level TVS on 48V PSE output side, downstream of primary MOV protection. Use Value: Provides low-capacitance (<50pF), fast-response clamping that preserves 100BASE-TX signal integrity up to 100MHz. |
Use Scenario: Protects DC-link monitoring circuits in solar string inverters exposed to grid-switching transients and EMP-like events. IC Role / Device Role / Timing Role: Surge suppression on 600–1000V DC bus voltage dividers feeding isolation amplifiers. Use Value: Withstands repeated 8.3ms surges up to 100A while maintaining stable VBR - critical for long-life field deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA-13-F | Bi-directional variant; symmetrical clamping for AC-coupled or bidirectional signal lines | Required for RS-485, CAN, or audio differential pairs where negative transients occur | Select only if protecting bidirectional signals; otherwise, unidirectional SMBJ36A offers tighter VRWM margin |
| SAC36A-13-F | Same VRWM/VBR/VC specs but in smaller SOD-123 package; 400W peak power rating | Limited to lower-energy surges (e.g., ESD-only); unsuitable for IEC 61000-4-5 Level 3/4 | Choose for space-constrained designs with <300W surge requirements; verify thermal margin at TL > +60°C |
Compared with SMBJ36CA-13-F, the SMBJ36A-13-F provides superior unidirectional clamping margin for DC rails; compared with SAC36A-13-F, it delivers 50% higher surge energy handling and proven thermal stability in SMB-footprint layouts.
Availability
SMBJ36A-13-F is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and telecom power feeds requiring stable component supply across multi-year production cycles.
Supply support for SMBJ36A-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 protection, power management, and signal integrity solutions for industrial and automotive markets.
The SMBJ series belongs to Diodes' transient voltage suppressor product line, engineered specifically for robust, standardized overvoltage protection in high-volume SMT applications where consistent clamping performance and JEDEC-compliant packaging are mandatory.
FAQ
What is the maximum clamping voltage of SMBJ36A-13-F at its rated peak pulse current?
The maximum clamping voltage (VC) is 58.1V at 10.3A peak pulse current (Ipp), measured using the 8.3ms half-sine waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage imposed on protected circuitry during worst-case surge events.
Can SMBJ36A-13-F be used in bidirectional signal lines like RS-485?
No - SMBJ36A-13-F is unidirectional and conducts only for positive transients relative to its cathode. For RS-485 or other bidirectional interfaces, the bi-directional variant SMBJ36CA-13-F must be used, which clamps both positive and negative excursions symmetrically around ground.
How does the SMBJ36A-13-F handle repeated surge events?
It is rated for non-repetitive pulses only: maximum 4 pulses per minute at 25°C ambient. Repeated surges require thermal derating per Figure 1 in DS19002; at 75°C ambient, peak pulse power drops to ~450W. For repetitive surge environments, consider active crowbar circuits or hybrid TVS-MOV designs.
Is the SMBJ36A-13-F compatible with lead-free reflow soldering processes?
Yes - it features matte tin-plated terminals qualified to MIL-STD-202, Method 208, and supports standard Pb-free reflow profiles (peak temperature ≤260°C, time above liquidus ≤60 seconds). Its moisture sensitivity level is 1, eliminating pre-bake requirements.
SMBJ36A-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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
SMBJ36A-13-F FAQ
1.How can I place an order for SMBJ36A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36A-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 SMBJ36A-13-F reliable?
The price and inventory of SMBJ36A-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 SMBJ36A-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ36A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36A-13-F?
SMBJ36A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36A-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 SMBJ36A-13-F?
For technical support, including SMBJ36A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36A-13-F requirements.
6.How does Aetrix verify that SMBJ36A-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ36A-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 SMBJ36A-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ36A-13-F?
All SMBJ36A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36A-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 SMBJ36A-13-F part is unused and in its original packaging.
Return procedure for SMBJ36A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36A-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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