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Vishay General Semiconductor - Diodes Division SMBJ13CA-E3/5B
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- Part No.:
- SMBJ13CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13CA-E3/5B.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,579
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Product details
Overview
SMBJ13CA-E3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 13 V standoff 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 - used to protect MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ13CA-E3/5B datasheet, SMBJ13CA-E3/5B pinout, SMBJ13CA-E3/5B application, or SMBJ13CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.45), MSL Level 1 moisture sensitivity, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports rapid energy dissipation during transient events.
The device complies with ANSI/IEEE C62.35 for surge protector terminology and is rated for operation from –55 °C to +150 °C junction temperature. Thermal resistance is 100 °C/W (junction-to-ambient, typical) and 20 °C/W (junction-to-lead), confirming suitability for moderate-power transient suppression without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before significant conduction begins; defines safe operating margin below clamping threshold. |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - Confirmed breakdown range ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 21.5 V at 27.9 A - Clamped voltage under 600 W 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak pulse power handling capacity; validates robustness against lightning-induced or inductive-switching transients. |
| IPPM | 27.9 A - Peak surge current supported at VC; correlates directly with PCB trace sizing and layout thermal design. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in high-ambient environments like industrial motor drives or base stations. |
| MSL Level | Level 1 per J-STD-020 - No floor life limitation; compatible with standard reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional configuration has no polarity marking; terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides low-impedance path to ground or reference rail during either polarity surge event. |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode in bidirectional devices; forms symmetrical clamping junction across terminals. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded power rails without polarity constraints. |
| 600 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV surge) compliance when combined with appropriate series impedance. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during clamping, reducing risk of latch-up or damage to downstream 15 V-tolerant ICs. |
| MSL Level 1 rating | Eliminates bake-out requirements and allows direct placement into high-volume SMT lines using standard JEDEC reflow profiles. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage performance across temperature and lifetime, critical for automotive and industrial deployments. |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protecting gate drivers and feedback sensing circuits from inductive kickback during IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across DC bus or gate-source terminals to clamp spikes <100 ns after onset. Use Value: Limits voltage excursion to ≤21.5 V, preventing gate oxide rupture in 25 V-rated MOSFETs and maintaining control loop integrity. | Use Scenario: Safeguarding -48 V DC power input stages of telecom line cards against lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Primary surge arrestor mounted at board edge, coordinated with upstream GDT or PTC for multi-stage protection. Use Value: Absorbs 600 W transient energy without degradation, preserving downstream DC/DC converter input stage reliability. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
Use Scenario: Shielding LIN bus transceivers and microcontroller I/O pins from load dump and jump-start transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed on LIN data line to clamp both positive and negative excursions relative to ground. Use Value: Maintains signal integrity below 21.5 V clamping level while surviving repetitive 10/1000 µs pulses per ISO 7637-2 Pulse 1/2/5a test profiles. | Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors connected to long harnesses in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ < 200 pF at 0 V) installed at connector interface to shunt ESD and EFT bursts. Use Value: Prevents sensor output saturation or ADC offset shift by limiting transient voltage to 21.5 V while adding <0.5 pF parasitic capacitance at signal frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA-M3/5B | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package. | No functional difference; selected where halogen-free material compliance is mandated (e.g., EU public infrastructure projects). | Choose SMBJ13CA-M3/5B when halogen-free bill-of-materials is required; otherwise SMBJ13CA-E3/5B offers standard commercial-grade compliance. |
| SMCJ13CA-E3/57T | Higher 1500 W peak pulse power, larger SMC (DO-214AB) package, same VWM/VBR/VC ratings. | Used where higher surge margin is needed (e.g., outdoor power supplies), but requires larger PCB footprint and different pad layout. | Select SMCJ13CA-E3/57T only if 600 W is insufficient; verify thermal derating and layout compatibility before substitution. |
Compared with SMBJ13CA-M3/5B, the SMBJ13CA-E3/5B offers identical protection performance with standard RoHS compliance, while SMCJ13CA-E3/57T provides 2.5× higher surge capacity at the cost of increased size and thermal mass - making SMBJ13CA-E3/5B optimal for space-constrained, cost-sensitive industrial and telecom designs requiring certified 600 W clamping.
Availability
SMBJ13CA-E3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, and automotive body control modules requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBJ13CA-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, precision, and application-specific optimization.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting industrial automation, telecommunications infrastructure, and automotive subsystems where failure tolerance and long-term parametric stability are critical.
FAQ
What is the clamping voltage of SMBJ13CA-E3/5B under a 10/1000 µs surge?
The SMBJ13CA-E3/5B clamps to a maximum of 21.5 V when subjected to its rated peak pulse current of 27.9 A, corresponding to a 600 W 10/1000 µs waveform. This value is measured per Fig. 1 and Table 1 in Vishay Document 88392 and defines the upper voltage limit imposed on protected circuitry during transient events.
Is SMBJ13CA-E3/5B suitable for automotive applications?
The SMBJ13CA-E3/5B is a commercial-grade part; for automotive use, Vishay offers AEC-Q101 qualified variants such as SMBJ13CAHE3_B/I. While SMBJ13CA-E3/5B meets many electrical requirements, it lacks formal automotive qualification - select HE3/HM3 suffix parts when compliance with AEC-Q101 stress testing is mandatory.
Does SMBJ13CA-E3/5B have polarity markings on the package?
No - SMBJ13CA-E3/5B is a bidirectional TVS diode and carries no cathode band or polarity marking. Its symmetrical construction means either terminal may serve as anode or cathode depending on transient polarity, simplifying layout and eliminating orientation errors during automated assembly.
What is the maximum reverse leakage current for SMBJ13CA-E3/5B at rated standoff voltage?
At VWM = 13 V and TA = 25 °C, the SMBJ13CA-E3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA. This low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes standby power loss in always-on systems.
Can SMBJ13CA-E3/5B be used in place of a unidirectional SMBJ13A-E3/5B?
No - SMBJ13CA-E3/5B is bidirectional and electrically distinct from unidirectional SMBJ13A-E3/5B. Substituting them risks improper clamping on DC-biased lines and violates polarity-dependent circuit protection schemes; always match device directionality (A vs. CA suffix) to system grounding and signal architecture.
SMBJ13CA-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ13CA-E3/5B FAQ
1.How can I place an order for SMBJ13CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13CA-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 SMBJ13CA-E3/5B reliable?
The price and inventory of SMBJ13CA-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 SMBJ13CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ13CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13CA-E3/5B?
SMBJ13CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13CA-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 SMBJ13CA-E3/5B?
For technical support, including SMBJ13CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13CA-E3/5B requirements.
6.How does Aetrix verify that SMBJ13CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ13CA-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 SMBJ13CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ13CA-E3/5B?
All SMBJ13CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13CA-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 SMBJ13CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ13CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13CA-E3/5B Tags
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