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Vishay General Semiconductor - Diodes Division SMBJ13A-M3/5B
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- Part No.:
- SMBJ13A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13A-M3/5B.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,191
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Product details
Overview
SMBJ13A-M3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive switching transients and ESD events on power and signal lines. It features a 13 V stand-off voltage (VWM), 21.5 V maximum clamping voltage at 27.9 A peak pulse current (10/1000 μs), and 600 W peak pulse power rating - deployed in industrial sensor interfaces and automotive body control modules.
For engineers reviewing the SMBJ13A-M3/5B datasheet, SMBJ13A-M3/5B pinout, SMBJ13A-M3/5B application, or SMBJ13A-M3/5B equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under standardized surge waveforms, and halogen-free RoHS-compliant sourcing details for production-grade ESD protection design-in.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp with cathode-band polarity marking. Its junction exhibits low incremental surge resistance (typical <0.5 Ω), fast response time (<1.0 ps), and temperature coefficient of breakdown voltage of +0.084 %/°C - enabling stable clamping across -55 °C to +150 °C operating range.
Designed for PCB-level surge immunity per IEC 61000-4-5 (Level 3–4), it delivers 27.9 A peak pulse current into 21.5 V clamping at 10/1000 μs waveform, with 1.0 μA max reverse leakage at 13 V stand-off - validated under JEDEC J-STD-020 MSL Level 1 reflow conditions (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 13 V - maximum continuous reverse voltage before significant leakage; sets minimum system operating margin. |
| VBR (Breakdown Voltage) | 14.4 V min / 15.9 V max at 1.0 mA - defines onset of avalanche conduction during overvoltage events. |
| VC (Clamping Voltage) | 21.5 V at IPPM = 27.9 A (10/1000 μs) - actual voltage seen by protected IC during worst-case surge. |
| PPPM (Peak Pulse Power) | 600 W - maximum transient energy absorption capability under standard 10/1000 μs waveform. |
| ID (Reverse Leakage) | 1.0 μA max at VWM = 13 V - ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| TJ max | +150 °C - enables operation in under-hood automotive and industrial motor drive environments. |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with automated placement; 5.21 mm × 4.06 mm × 2.20 mm body. |
Pinout & Package
Package: SMB (DO-214AA), unidirectional configuration with cathode band marking on one end. Matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or lowest potential rail; forms return path during clamping conduction. |
| Cathode | Protected line input | Connected to I/O line or power rail being safeguarded; avalanche conduction occurs from cathode to anode. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-ground) without derating on 5.0 mm × 5.0 mm copper pads. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and EU Directive 2015/863 for restricted substances. |
| MSL Level 1 moisture sensitivity | Enables single-pass reflow assembly without baking; peak reflow temperature up to 260 °C per J-STD-020. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage stress on downstream MOSFET gates or MCU I/O pins during transient events. |
| 150 °C maximum junction temperature | Permits use in engine control units and industrial PLCs where ambient temperatures exceed 105 °C. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 12 V CAN/LIN bus transceivers and analog sensor outputs (e.g., temperature, pressure) from load-dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between signal line and chassis ground, triggered within picoseconds of overvoltage onset. Use Value: Limits transient voltage to ≤21.5 V, preventing latch-up or gate oxide rupture in 3.3 V/5 V interface ICs while maintaining <1.0 μA leakage at nominal 13 V supply. |
Use Scenario: Safeguarding microcontroller GPIOs and power distribution switches in door module ECUs exposed to ISO 7637-2 pulse 1/2a/5a. IC Role / Device Role / Timing Role: Primary front-end surge suppression device on 12 V switched power rails and wake-up signal inputs. Use Value: Absorbs 600 W surges without degradation, with clamping voltage below 22 V to preserve 24 V tolerant logic thresholds and avoid false wake-ups. |
| Consumer Power Adapter Input | Telecom PoE Data Line Protection |
Use Scenario: Secondary-side DC input protection in USB-C PD adapters and AC/DC wall adapters subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary rectification but before DC-DC controller ICs and optocouplers. Use Value: Withstands repeated 10/1000 μs transients up to 27.9 A while maintaining 13 V nominal operating margin - critical for UL 62368-1 compliance. |
Use Scenario: Per-port transient suppression on Ethernet data pairs (10/100/1000BASE-T) in IEEE 802.3af/at/bt powered devices. IC Role / Device Role / Timing Role: Unidirectional clamp on each differential pair, referenced to local ground plane with controlled trace impedance. Use Value: Delivers 21.5 V clamping at full 600 W rating without capacitive loading >100 pF - preserving signal integrity up to 100 MHz bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A-E3/5B | Same electrical specs; RoHS-compliant but not halogen-free (SnPb-free matte tin, no brominated flame retardants specified). | Acceptable for commercial-grade consumer electronics where halogen content is unrestricted. | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 qualification is unnecessary. |
| SMBJ13AHM3_B/I | AEC-Q101 qualified variant; identical VWM/VC/PPPM but validated for automotive temperature cycling and humidity testing. | Required for ASIL-B compliant body electronics and infotainment power domains. | Choose for automotive OEM programs needing PPAP documentation and extended reliability validation. |
Compared with SMBJ13A-M3/5B, the E3/5B offers identical surge performance at lower cost for non-automotive use, while the HM3_B/I adds automotive qualification with no trade-off in clamping or thermal specs - enabling direct BOM substitution where qualification is mandated.
Availability
SMBJ13A-M3/5B is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and consumer power adapter designs requiring stable component supply with halogen-free compliance and MSL Level 1 reflow compatibility.
Supply support for SMBJ13A-M3/5B 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-volume manufacturability.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust, low-leakage transient suppression in automotive, industrial, and telecom infrastructure applications where repeatable clamping and long-term stability are critical.
FAQ
What is the maximum clamping voltage of SMBJ13A-M3/5B under a 10/1000 μs surge?
The SMBJ13A-M3/5B has a maximum clamping voltage (VC) of 21.5 V when subjected to its rated peak pulse current of 27.9 A using the standardized 10/1000 μs waveform. This value is measured at TA = 25 °C with devices mounted on 0.2" × 0.2" copper pads per JEDEC test conditions - ensuring predictable overvoltage limiting for downstream ICs.
Is SMBJ13A-M3/5B halogen-free and RoHS-compliant?
Yes, SMBJ13A-M3/5B carries the M3 suffix, indicating it is both RoHS-compliant and halogen-free per IPC-1752A definitions. The molding compound meets UL 94 V-0 flammability rating, and terminals are matte tin plated - satisfying environmental requirements for consumer, industrial, and automotive applications without compromising surge performance.
Does SMBJ13A-M3/5B meet automotive qualification standards?
No, SMBJ13A-M3/5B is commercial-grade and not AEC-Q101 qualified. For automotive use, select the SMBJ13AHM3_B/I variant, which shares identical electrical characteristics but includes full AEC-Q101 stress testing and PPAP documentation - required for body control, lighting, and infotainment systems.
What is the thermal resistance from junction to ambient for SMBJ13A-M3/5B?
The typical thermal resistance from junction to ambient (RθJA) for SMBJ13A-M3/5B is 100 °C/W under standard JEDEC test conditions (single device on FR-4 board with 0.2" × 0.2" copper pads). This value supports thermal design in compact layouts where airflow is limited, especially when combined with its 150 °C maximum junction temperature rating.
How does SMBJ13A-M3/5B differ from bidirectional variants like SMBJ13CA?
SMBJ13A-M3/5B is unidirectional with cathode-band polarity, intended for DC-biased lines such as power rails or single-ended signals. In contrast, SMBJ13CA provides symmetrical clamping for AC-coupled or floating lines like data buses. Their VWM (13 V vs. 13 V), VC (21.5 V vs. 21.5 V), and PPPM (600 W) are identical, but polarity and application context differ fundamentally - mixing them risks incorrect circuit protection.
SMBJ13A-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 27.9A
- 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:
- DO-214AA (SMBJ)
SMBJ13A-M3/5B FAQ
1.How can I place an order for SMBJ13A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13A-M3/5B 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 SMBJ13A-M3/5B reliable?
The price and inventory of SMBJ13A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ13A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13A-M3/5B?
SMBJ13A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13A-M3/5B 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 SMBJ13A-M3/5B?
For technical support, including SMBJ13A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13A-M3/5B requirements.
6.How does Aetrix verify that SMBJ13A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ13A-M3/5B 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 SMBJ13A-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ13A-M3/5B?
All SMBJ13A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13A-M3/5B, 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 SMBJ13A-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ13A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13A-M3/5B Tags
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