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Diodes Incorporated SMBJ15A-13-F
- Part No.:
- SMBJ15A-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ15A-13-F.pdf
- Description:
- TVS DIODE 15VWM 24.4VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:371,536
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Product details
Overview
SMBJ15A-13-F from Diodes Incorporated is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with 15.0V reverse standoff voltage, 16.7–19.2V breakdown voltage at 1.0mA test current, and 24.4V max clamping voltage at 24.0A peak pulse current. It protects DC power rails and I/O lines in industrial motor drives, telecom power supplies, and automotive body control modules against ESD and lightning-induced surges.
For engineers reviewing the SMBJ15A-13-F datasheet, SMBJ15A-13-F pinout, SMBJ15A-13-F application, or SMBJ15A-13-F equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, peak pulse current capability under 8.3ms half-sine waveform, thermal derating above +25°C, and compatibility with SMB package reflow profiles.
Technical Context
This TVS operates as a fast-acting shunt clamp during overvoltage transients, leveraging avalanche breakdown in silicon to divert surge current away from downstream circuitry. Its glass-passivated die ensures stable leakage and consistent VBR across temperature.
Designed for single-pulse suppression per REA 10/1000μs waveform, it delivers 600W peak power at TA = +25°C with 4.8W/°C linear derating above that ambient. It supports unidirectional polarity only, with cathode band marking for correct PCB orientation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 8.3ms surge without failure under defined test conditions |
| Reverse Standoff Voltage | 15.0V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage | 16.7–19.2V @ 1.0mA - precise avalanche onset range enabling tight protection margins |
| Clamping Voltage | 24.4V @ 24.0A - limits voltage seen by protected load during worst-case transient |
| Leakage Current | ≤5.0μA @ 15.0V - negligible standby power loss and minimal impact on high-impedance circuits |
| Package | SMB - industry-standard surface-mount outline with 3.3–3.94mm height and 5.0–5.59mm length |
| Operating Temp | −55°C to +150°C - suitable for under-hood automotive and industrial environments |
Pinout & Package
The SMBJ15A-13-F uses an SMB (DO-214AA) surface-mount package with two terminals: Cathode (marked with band) and Anode. The device is unidirectional and must be oriented with cathode toward the protected line's higher potential side.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink | Connected to protected line; conducts avalanche current to ground during overvoltage |
| Anode | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| 600W Peak Pulse Power | Enables robust protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges on 12V/24V rails |
| Glass Passivated Die | Ensures long-term parameter stability and low parametric drift over 10+ year service life |
| Lead-Free & RoHS Compliant | Meets IPC-J-STD-020 moisture sensitivity level 1 for standard reflow assembly |
| UL 94V-0 Molded Case | Provides flame-retardant housing essential for industrial and automotive safety compliance |
| Low Clamping Ratio (VC/VRWM = 1.63) | Minimizes voltage overshoot during clamping-critical for protecting 16V-tolerant microcontrollers |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing inputs against switching transients from IGBTs and MOSFETs. IC Role / Device Role: Shunt TVS placed between isolated gate drive output and ground to clamp inductive kickback. Use Value: Prevents latch-up or permanent damage to SiC/GaN driver ICs rated for ≤30V absolute maximum. | Use Scenario: Input-stage surge suppression on 48V DC-DC converter front-ends exposed to lightning-induced surges. IC Role / Device Role: Primary-level TVS mounted directly at connector entry point before bulk capacitance. Use Value: Limits input voltage to ≤24.4V during 24A transient, preserving upstream fuse and EMI filter integrity. |
| Automotive Body Control Modules | Industrial PLC I/O Terminals |
Use Scenario: CAN bus power rail protection in BCMs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role: Unidirectional clamp on 12V supply feeding CAN transceivers and microcontroller VDD. Use Value: Maintains <15.0V standby leakage while clamping 12V rail to 24.4V during 100A/50ms load dump event. | Use Scenario: Digital input protection for 24V dry-contact sensors in factory automation systems. IC Role / Device Role: Series-connected TVS on each discrete input channel to absorb field-wiring induced transients. Use Value: Enables reliable operation with ≤5μA leakage at 24V nominal, avoiding false triggering of optocoupled inputs. |
Availability
SMBJ15A-13-F is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply and full traceability through J-STD-020 Level 1 reflow compatibility.
Supply support for SMBJ15A-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, automotive, and communications markets.
The SMBJ series is part of Diodes' transient voltage suppressor product line, engineered specifically for robust, standardized surge immunity in space-constrained surface-mount applications where repeatable clamping performance and long-term reliability are critical.
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A-E3/52 (Vishay) | Same SMB package, identical VRWM (15V), but slightly higher clamping voltage (25.0V @ 24A) | Marginally reduced protection headroom for 16V-rated loads | Select when Vishay qualification or dual-sourcing is required; verify layout clearance for 0.1V higher VC |
| P6SMB15A (ON Semiconductor) | Same electrical specs and SMB footprint, but lead-free plating differs (NiPdAu vs. matte tin) | No functional impact; compatible with same reflow profile and soldering process | Preferred for legacy ON Semi BOMs or where specific plating chemistry is mandated for corrosion resistance |
Compared with SMBJ15A-13-F, the Vishay alternative offers marginally less clamping headroom, while the ON Semiconductor version matches all electrical parameters but uses different terminal metallurgy-both require no PCB redesign but differ in supply chain origin and plating-related reliability testing scope.
FAQ
What is the maximum peak pulse current the SMBJ15A-13-F can handle?
The SMBJ15A-13-F is rated for 24.0A peak pulse current (IPP) under the standard 8.3ms single half-sine waveform condition. This value is derived from its 600W peak pulse power rating and 24.4V clamping voltage (IPP = PPK/VC). Derating applies above +25°C ambient at 4.8W/°C.
Is SMBJ15A-13-F suitable for bi-directional signal line protection?
No. SMBJ15A-13-F is a unidirectional TVS diode, indicated by the absence of "C" in its part number. It features a cathode band and conducts only when the anode is negative relative to cathode. For bi-directional protection (e.g., RS-485, USB D+/D−), use SMBJ15CA-13-F instead.
Does this device meet automotive AEC-Q200 stress testing requirements?
No. While SMBJ15A-13-F operates from −55°C to +150°C and is used in automotive body control modules, it is not AEC-Q200 qualified. Diodes Incorporated offers the AEC-Q200-qualified SMBJ15AQ-13-F variant for automotive-grade applications requiring formal qualification documentation.
How does the SMB package compare to SMA in terms of thermal performance?
The SMB package has a larger copper pad area and thicker lead frame than SMA, resulting in lower thermal resistance (RθJA ≈ 50°C/W vs. ~65°C/W for SMA). This enables higher steady-state power dissipation (5.0W @ TL = +75°C) and improved surge energy handling without board-level thermal relief.
SMBJ15A-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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 24A
- 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
SMBJ15A-13-F FAQ
1.How can I place an order for SMBJ15A-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ15A-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 SMBJ15A-13-F reliable?
The price and inventory of SMBJ15A-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 SMBJ15A-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ15A-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ15A-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ15A-13-F?
SMBJ15A-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ15A-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 SMBJ15A-13-F?
For technical support, including SMBJ15A-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ15A-13-F requirements.
6.How does Aetrix verify that SMBJ15A-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ15A-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 SMBJ15A-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ15A-13-F?
All SMBJ15A-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ15A-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 SMBJ15A-13-F part is unused and in its original packaging.
Return procedure for SMBJ15A-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ15A-13-F Tags
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Diodes Incorporated
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