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Vishay General Semiconductor - Diodes Division SMBJ64CA-E3/52
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- Part No.:
- SMBJ64CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64CA-E3/52.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,677
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Product details
Overview
SMBJ64CA-E3/52 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 64 V standoff voltage (VWM), 71.1–78.6 V breakdown range (VBR at 1 mA), 103 V maximum clamping voltage (VC) at 5.8 A peak pulse current, and 600 W peak pulse power (10/1000 µs waveform), used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ64CA-E3/52 datasheet, SMBJ64CA-E3/52 pinout, SMBJ64CA-E3/52 application, or SMBJ64CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.37), MSL Level 1 moisture sensitivity, and RoHS-compliant matte tin plating - critical for automotive-grade surge protection layout validation and IEC 61000-4-5 compliance design.
Technical Context
This bidirectional TVS operates symmetrically across both polarities with identical VBR, VC, and IPPM specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5).
The device uses a planar silicon junction structure optimized for low incremental surge resistance (rd ≈ 17.8 Ω derived from ΔVC/ΔIPPM) and thermal robustness up to 150 °C junction temperature. Mounted on 5.0 mm × 5.0 mm copper pads, it achieves 100 °C/W junction-to-ambient thermal resistance, supporting repetitive surge duty cycles up to 0.01 %.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin below breakdown. |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - Confirmed breakdown threshold range; ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | 103 V at 5.8 A - Clamped voltage under 600 W 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak pulse power handling per single transient; validates suitability for IEC 61000-4-5 Level 4 (4 kV) testing. |
| ID @ VWM | <1.0 µA - Reverse leakage at standoff voltage; minimizes standby power loss in high-impedance sensor lines. |
| TJ max | 150 °C - Maximum junction temperature; supports operation in enclosed industrial enclosures without forced cooling. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, MSL Level 1, 260 °C reflow peak, UL 94 V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | For bidirectional operation, functions as cathode in one polarity and anode in the other; no marking on body. |
| Cathode | Current exit terminal in forward bias | Identical physical terminal as Anode; symmetrical construction eliminates polarity dependency in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 600 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity requirements for industrial equipment up to Level 4 (4 kV). |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes voltage overshoot during transients, reducing stress on downstream 75 V-rated MOSFETs or logic ICs. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking, simplifying SMT manufacturing flow. |
| RoHS-compliant, matte tin plating | Ensures solderability per J-STD-002 and whisker resistance per JESD 201 Class 2 for long-term reliability. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers against inductive kickback from 24 V DC motor switching. IC Role / Device Role / Timing Role: Bidirectional TVS placed across MOSFET source-drain or op-amp inputs to clamp ±100 V transients. Use Value: Limits voltage excursion to ≤103 V, preventing latch-up or oxide breakdown in 100 V-rated SiC gate drivers. |
Use Scenario: Shielding LIN bus transceivers and microcontroller I/O pins from load-dump and jump-start surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on power rail and data line inputs to absorb 12 V system-level transients. Use Value: Maintains <1 µA leakage at 13.5 V nominal supply, avoiding false wake-up or battery drain in sleep mode. |
| Telecom Power Feeds | Industrial Sensor Interfaces |
Use Scenario: Safeguarding PoE-powered Ethernet PHYs and DC-DC controllers from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Bidirectional clamping device on secondary-side 48 V output rails and data pair terminations. Use Value: Withstands 600 W pulses without degradation, meeting GR-1089-CORE telecom surge immunity standards. |
Use Scenario: Protecting 4–20 mA loop transmitters and analog front-ends from field-wiring ESD and cable coupling. IC Role / Device Role / Timing Role: Low-capacitance TVS on current-loop input/output paths to avoid signal distortion. Use Value: Junction capacitance <100 pF at 0 V bias ensures minimal impact on 1 kHz–10 kHz sensor 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 |
|---|---|---|---|
| SMBJ64CA-M3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package. | No difference in circuit function or layout; selected when halogen-free BOM compliance is required. | Choose for environmental compliance mandates without performance trade-offs. |
| SMCJ64CA-E3/52 | Same VWM/VBR/VC but in larger SMC (DO-214AB) package; 1500 W PPPM. | Higher surge capacity suits higher-energy environments (e.g., outdoor telecom cabinets); requires larger PCB area. | Select when 600 W is insufficient and board space allows SMC footprint. |
Compared with SMBJ64CA-E3/52, the M3 variant offers identical protection performance with halogen-free materials, while the SMCJ64CA-E3/52 delivers 2.5× higher surge energy handling at the cost of 40 % larger board area - enabling tiered design flexibility across industrial, automotive, and telecom platforms.
Availability
SMBJ64CA-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and industrial sensor interfaces requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBJ64CA-E3/52 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, and protection devices with emphasis on reliability, precision, and automotive qualification.
The SMBJ series is engineered for robust transient suppression in harsh environments, targeting industrial automation, automotive electronics, and telecommunications infrastructure where repeatable clamping and AEC-Q101 readiness matter.
FAQ
What is the maximum clamping voltage of SMBJ64CA-E3/52 under a 600 W surge?
The SMBJ64CA-E3/52 clamps to a maximum of 103 V at its rated peak pulse current of 5.8 A (10/1000 µs waveform), directly corresponding to its 600 W peak pulse power rating. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The SMBJ64CA-E3/52 maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ64CA-E3/52 suitable for automotive applications?
SMBJ64CA-E3/52 is RoHS-compliant and qualified to AEC-Q101 when ordered with HE3 or HM3 suffixes (e.g., SMBJ64CAHE3_B/H); the E3/52 variant itself is commercial-grade and not AEC-Q101 certified. For automotive use, engineers must specify the HE3 or HM3 version to ensure qualification for under-hood and body-control module environments. The SMBJ64CA-E3/52 shares identical electrical characteristics with its AEC-Q101 counterparts but lacks the extended reliability test documentation required for automotive deployment.
How does the bidirectional design of SMBJ64CA-E3/52 affect PCB layout?
The SMBJ64CA-E3/52 has no polarity marking and operates identically in both directions, eliminating orientation constraints during placement. Unlike unidirectional TVS diodes, it requires no cathode band alignment on the PCB, simplifying layout and reducing assembly errors. This symmetry also enables single-device protection of AC signals, differential buses, or floating grounds without additional routing complexity. The SMBJ64CA-E3/52's DO-214AA footprint remains unchanged regardless of signal polarity.
What is the thermal resistance of SMBJ64CA-E3/52, and how does it impact derating?
SMBJ64CA-E3/52 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. At ambient temperatures above 25 °C, its peak pulse power must be linearly derated - e.g., at 75 °C ambient, maximum PPPM drops to 400 W per Figure 2 in Vishay document 88392. This derating ensures junction temperature stays within the 150 °C absolute maximum, preserving long-term reliability during repetitive surge events. The SMBJ64CA-E3/52's RθJL of 20 °C/W further supports localized heat dissipation through leads.
Does SMBJ64CA-E3/52 meet moisture sensitivity requirements for lead-free reflow?
Yes, SMBJ64CA-E3/52 is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and withstands peak reflow temperatures up to 260 °C without preconditioning or baking. Its molding compound meets UL 94 V-0 flammability standards, and matte tin-plated leads comply with J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements. This makes the SMBJ64CA-E3/52 fully compatible with standard lead-free SMT assembly processes used in industrial and telecom manufacturing.
SMBJ64CA-E3/52 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):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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)
SMBJ64CA-E3/52 FAQ
1.How can I place an order for SMBJ64CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64CA-E3/52 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 SMBJ64CA-E3/52 reliable?
The price and inventory of SMBJ64CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ64CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ64CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64CA-E3/52?
SMBJ64CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64CA-E3/52 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 SMBJ64CA-E3/52?
For technical support, including SMBJ64CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64CA-E3/52 requirements.
6.How does Aetrix verify that SMBJ64CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ64CA-E3/52 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 SMBJ64CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ64CA-E3/52?
All SMBJ64CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64CA-E3/52, 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 SMBJ64CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ64CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64CA-E3/52 Tags
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