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Vishay General Semiconductor - Diodes Division SMBJ13-E3/5B
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- Part No.:
- SMBJ13-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13-E3/5B.pdf
- Description:
- TVS DIODE 13VWM 23.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,456
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Product details
Overview
SMBJ13-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, 21.5 V maximum clamping voltage (VC) at 27.9 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial motor drives, automotive body control modules, and industrial sensor interfaces.
For engineers reviewing the SMBJ13-E3/5B datasheet, SMBJ13-E3/5B pinout, SMBJ13-E3/5B application, or SMBJ13-E3/5B equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, RoHS-compliant commercial-grade packaging, and direct alternatives validated for similar TVS protection roles in 12–15 V DC systems.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VWM = 13 V, then avalanches sharply at VBR ≥ 14.4 V to divert transients away from downstream ICs. Its low incremental surge resistance ensures stable clamping at VC = 21.5 V under 27.9 A (10/1000 µs), enabling reliable protection of 12 V logic supplies and MOSFET gate drivers.
Thermal design is constrained by RθJA = 100 °C/W (typ.) and TJ(max) = 150 °C, requiring minimum 5.0 mm × 5.0 mm copper pads per terminal for rated 600 W pulse handling. The device meets MSL Level 1 (260 °C peak reflow) and supports automated SMT placement with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before leakage exceeds 1 µA; sets upper limit for protected circuit's nominal DC rail. |
| VBR (min/max) | 14.4 V / 15.9 V at IT = 1 mA - Confirmed avalanche onset range; ensures consistent turn-on across production lots and temperature. |
| VC @ IPPM | 21.5 V at 27.9 A (10/1000 µs) - Clamped voltage seen by protected load during worst-case surge; defines safe margin for 12 V ICs. |
| PPPM | 600 W - Peak transient energy absorption capability; enables single-device protection against IEC 61000-4-5 Level 3 surges (1 kV/2 Ω). |
| IFSM | 100 A (8.3 ms half-sine) - Surge current withstand for unidirectional forward conduction; supports inductive kickback suppression. |
| TJ(max) | 150 °C - Maximum junction temperature; limits ambient + power dissipation budget in enclosed enclosures or high-TA environments. |
| RθJA | 100 °C/W (typ.) - Thermal resistance from junction to ambient on standard 0.2" × 0.2" pads; dictates required PCB copper area for sustained 5 W dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to system ground or low-side reference; completes clamping loop when cathode is tied to protected line. |
| Cathode | Protected line connection / avalanche node | Connected to the 13 V rail or signal line needing protection; conducts surge current to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device compliance with IEC 61000-4-5 surge immunity requirements for industrial 12 V subsystems. |
| 21.5 V clamping voltage at 27.9 A | Provides ≥2.5 V margin above 12 V rail for safe operation of 13.5 V tolerant microcontrollers and CAN transceivers. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning; eliminates moisture-related popcorning risk in high-volume SMT lines. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure in automotive under-hood applications. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets EU RoHS Directive 2011/65/EU and JEDEC JESD201 Class 2 whisker resistance; suitable for global commercial electronics manufacturing. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 12 V DC input stage against inductive switching spikes from relay coils and solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between 12 V rail and chassis ground to clamp transients up to ±1 kV. Use Value: Limits voltage excursion to ≤21.5 V during 27.9 A surges, preventing latch-up or gate oxide damage in upstream PMICs and MCU power supervisors. |
Use Scenario: Guarding LIN bus transceiver supply pins against load dump and jump-start induced overvoltages. IC Role / Device Role / Timing Role: Standoff-rated TVS on VCC pin of LIN transceivers (e.g., TLE7259-3GE) to maintain <13 V operation during normal mode. Use Value: Clamps 10/1000 µs surges to 21.5 V within 1 ns response time, preserving transceiver functionality without reset or brownout. |
| Industrial Sensor Interfaces | Power Supply Input Staging |
Use Scenario: Shielding analog front-end inputs of 4–20 mA loop-powered sensors from ESD and field wiring transients. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA at 13 V) TVS on sensor VSENSE line to avoid signal offset drift during standby. Use Value: Maintains <1 µA reverse leakage at 13 V while delivering 21.5 V clamping - critical for sub-µV-level precision ADC references. |
Use Scenario: Primary overvoltage clamp ahead of DC-DC converter input in 12 V distributed power architecture. IC Role / Device Role / Timing Role: First-line defense against battery reversal, alternator load dump, and hot-swap transients on main 12 V bus. Use Value: Absorbs 600 W peak pulses without degradation, allowing downstream converters to operate reliably under EN 50155 transient profiles. |
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 and package; identical marking code "LG" and VBR/VC values; differs only in ordering suffix convention (A vs. no letter). | No functional difference; used interchangeably in BOMs where legacy part numbering requires "A" suffix. | Select SMBJ13A-E3/5B if sourcing alignment with Vishay's standard SMBJxxA family designation. |
| 1.5SMC13A | Same VWM (13 V), VBR (14.4–15.9 V), and VC (21.5 V), but in larger SMC (DO-214AB) package with higher RθJA (75 °C/W) and 1.5 kW PPPM. | Better thermal performance and surge margin, but requires larger PCB footprint (7.11 mm × 6.22 mm vs. 4.57 mm × 3.94 mm). | Choose 1.5SMC13A only when 600 W is insufficient and board space allows SMC footprint; otherwise SMBJ13-E3/5B offers optimal size/power density. |
Compared with SMBJ13A-E3/5B (identical function, minor suffix variation) and 1.5SMC13A (higher power, larger package), SMBJ13-E3/5B delivers best-in-class 600 W surge protection in the smallest standardized SMB outline - ideal for space-constrained 12 V power rails where thermal management relies on tight pad layout rather than bulkier packages.
Availability
SMBJ13-E3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and power supply input staging requiring stable component supply, full traceability, and RoHS-compliant commercial-grade TVS diodes.
Supply support for SMBJ13-E3/5B 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in compact surface-mount formats, targeting cost-sensitive yet robust protection needs in automotive, industrial, and computing power systems.
FAQ
What is the clamping voltage of SMBJ13-E3/5B under a 10/1000 µs surge?
The SMBJ13-E3/5B clamps to a maximum of 21.5 V when subjected to its rated peak pulse current of 27.9 A with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024, ensuring predictable protection margin for 12 V circuits. The SMBJ13-E3/5B maintains this clamping performance across its specified operating temperature range.
Is SMBJ13-E3/5B RoHS-compliant and lead-free?
Yes, SMBJ13-E3/5B is RoHS-compliant and lead-free, as indicated by the "E3" suffix per Vishay's ordering nomenclature. It meets EU Directive 2011/65/EU and is manufactured with matte tin-plated leads compliant to J-STD-002. The SMBJ13-E3/5B also passes JESD 201 Class 2 whisker testing, confirming long-term solder joint integrity in commercial applications.
Does SMBJ13-E3/5B have AEC-Q101 qualification?
No, SMBJ13-E3/5B is not AEC-Q101 qualified. It is a commercial-grade device (E3 suffix). For automotive-qualified equivalents, Vishay offers SMBJ13HE3 variants (e.g., SMBJ13HE3_B/I), which carry the "HE3" suffix and explicit AEC-Q101 certification noted in the datasheet's Mechanical Data section. The SMBJ13-E3/5B is intended for industrial and consumer applications where automotive qualification is not required.
What is the thermal resistance of SMBJ13-E3/5B, and how does it affect layout?
The SMBJ13-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To sustain its 5.0 W steady-state power dissipation or repeated 600 W pulses, PCB layout must allocate minimum copper area per pad as specified in Vishay's mounting pad layout diagram. Reducing pad size increases RθJA, risking thermal runaway - a key constraint in the SMBJ13-E3/5B design implementation.
How does SMBJ13-E3/5B differ from bidirectional SMBJ13CA variants?
The SMBJ13-E3/5B is unidirectional, with polarity marked by a cathode band and intended for DC rail protection where reverse conduction is blocked. In contrast, SMBJ13CA is bidirectional, offering symmetrical clamping for AC or floating signal lines, with identical VWM (13 V) but dual-directional VBR. The SMBJ13-E3/5B cannot replace SMBJ13CA in AC-coupled applications due to its inherent polarity - using it there would cause forward conduction and failure.
SMBJ13-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 25.2A
- 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)
SMBJ13-E3/5B FAQ
1.How can I place an order for SMBJ13-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13-E3/5B 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 SMBJ13-E3/5B reliable?
The price and inventory of SMBJ13-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ13-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13-E3/5B?
SMBJ13-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13-E3/5B 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 SMBJ13-E3/5B?
For technical support, including SMBJ13-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13-E3/5B requirements.
6.How does Aetrix verify that SMBJ13-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ13-E3/5B 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 SMBJ13-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ13-E3/5B?
All SMBJ13-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13-E3/5B, 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 SMBJ13-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ13-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13-E3/5B Tags
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