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Vishay General Semiconductor - Diodes Division SMBJ64CAHE3/52
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- Part No.:
- SMBJ64CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64CAHE3/52.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,676
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Product details
Overview
SMBJ64CAHE3/52 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 power and signal lines. It features a 64 V standoff voltage (VWM), 71.1–78.6 V breakdown voltage (VBR) at 1 mA, 103 V maximum clamping voltage (VC) at 5.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, sensor interfaces, and industrial I/O circuits against ESD and inductive switching surges.
For engineers reviewing the SMBJ64CAHE3/52 datasheet, SMBJ64CAHE3/52 pinout, SMBJ64CAHE3/52 application, or SMBJ64CAHE3/52 equivalent, key selection considerations include bidirectional clamping capability, AEC-Q101 qualification, RoHS-compliant construction, and compatibility with automated SMT placement on PCBs requiring robust surge immunity per IEC 61000-4-2/4-4/4-5.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both directions, enabling use on AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the 100 °C/W junction-to-ambient thermal resistance supports operation up to +150 °C junction temperature under defined pad layout conditions.
The SMBJ64CAHE3/52 delivers repeatable transient suppression with <1 ps response time and low incremental surge resistance, maintaining clamping performance across repetitive 0.01% duty cycle pulses. It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive-grade reliability - confirmed by HE3 suffix and Vishay's automotive ordering code designation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 64 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 71.1–78.6 V at 1 mA - Guaranteed avalanche initiation range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 103 V at 5.8 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Maximum transient energy absorption capability; enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth). |
| IPPM (Peak Pulse Current) | 5.8 A - Surge current level at which VC is specified; correlates directly with system-level surge test compliance. |
| TJmax | +150 °C - Maximum allowable junction temperature; supports operation in under-hood or high-ambient industrial environments. |
| Leakage Current (ID) | <1.0 µA at 64 V - Minimal standby power loss and signal integrity impact in always-on sensing or communication lines. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional distinction - either end serves as input/output for transient energy; enables placement on differential or AC lines without orientation check. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics - ensures reliability under thermal cycling, vibration, and humidity stress. |
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity up to 4 kV in 2 Ω source impedance configurations without derating. |
| Low-profile SMB package | Enables high-density PCB layouts and compatibility with standard pick-and-place equipment; footprint matches industry-standard DO-214AA land patterns. |
| Glass passivated junction | Provides stable VBR tolerance and long-term parameter consistency across temperature and lifetime - critical for safety-critical protection circuits. |
| MSL Level 1 (260 °C peak reflow) | Allows single-pass lead-free reflow assembly without moisture sensitivity concerns or baking requirements. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback sensors against inductive kickback from 24 V DC solenoids and relay coils. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across motor driver output terminals or sensor supply rails. Use Value: Limits transient voltage to ≤103 V during 5.8 A surges, preventing latch-up or permanent damage to 65 V-rated MOSFETs and op-amps. |
Use Scenario: ESD and load dump protection on LIN bus transceivers and interior lighting control ICs. IC Role / Device Role / Timing Role: Primary TVS element on 12 V power input and bidirectional data lines in BCM subassemblies. Use Value: Withstands ±30 kV contact ESD (IEC 61000-4-2) and 12 V load dump spikes up to 35 V sustained, enabled by AEC-Q101 qualification and 150 °C TJmax. |
| Telecom Power Feeds | Consumer Sensor Interfaces |
|
Use Scenario: Surge protection on -48 V DC telecom power distribution boards feeding remote radio units. IC Role / Device Role / Timing Role: Secondary-stage clamping device downstream of primary MOVs, handling fast-rising transients missed by bulk suppressors. Use Value: Responds in <1 ps to clamp 600 W surges within 103 V, preserving integrity of isolated DC/DC controllers rated for 75 V input max. |
Use Scenario: Input protection for MEMS accelerometers and environmental sensors connected to USB-powered IoT hubs. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) bidirectional clamp on analog supply and I²C lines exposed to user-accessible ports. Use Value: Prevents sensor offset drift or digital lockup caused by 8 kV air-gap ESD events while adding negligible quiescent current to battery-operated systems. |
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-E3/52 | Commercial-grade version without AEC-Q101 qualification; identical electrical specs and SMB package. | Approved for industrial/commercial use only; not certified for automotive production programs. | Select when AEC-Q101 is not required and cost optimization is prioritized. |
| SMAJ64CAHE3/A | Same VWM/VC ratings but lower PPPM (400 W vs. 600 W); SMA (DO-214AC) package with smaller footprint and higher thermal resistance. | Limited to lower-energy surge environments (e.g., consumer USB ports); unsuitable for 4 kV IEC 61000-4-5 testing. | Choose only if board space is constrained and peak surge energy remains below 400 W. |
Compared with SMBJ64CA-E3/52, the SMBJ64CAHE3/52 adds automotive qualification without trade-offs in clamping performance; versus SMAJ64CAHE3/A, it provides 50% higher surge power handling and superior thermal dissipation in the larger SMB package - making it the preferred choice for mission-critical industrial and automotive power rail protection.
Availability
SMBJ64CAHE3/52 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and consumer sensor interfaces requiring stable component supply across extended production lifecycles.
Supply support for SMBJ64CAHE3/52 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where consistent clamping performance and AEC-Q101 validation are mandatory.
FAQ
What does the "CA" suffix indicate in SMBJ64CAHE3/52?
The "CA" suffix denotes a bidirectional configuration, meaning the SMBJ64CAHE3/52 provides symmetrical transient voltage clamping in both polarities. This allows it to protect AC-coupled signals, differential buses, or floating power rails without regard to orientation - unlike unidirectional variants (e.g., SMBJ64AHE3/52) that require correct cathode/anode placement.
Is SMBJ64CAHE3/52 suitable for IEC 61000-4-5 surge testing?
Yes, SMBJ64CAHE3/52 is rated for 600 W peak pulse power with a 10/1000 µs waveform, supporting compliance with IEC 61000-4-5 Level 4 (4 kV line-to-earth, 2 Ω source impedance). Its 103 V clamping voltage at 5.8 A ensures protected circuits remain within safe operating limits during standardized surge events.
How does the HE3 suffix affect SMBJ64CAHE3/52 specifications?
The HE3 suffix indicates RoHS-compliant construction with AEC-Q101 qualification - confirming SMBJ64CAHE3/52 meets automotive reliability standards for temperature cycling, humidity resistance, and mechanical shock. Electrical parameters remain identical to non-HE3 variants; only qualification scope and material compliance differ.
What is the maximum operating temperature for SMBJ64CAHE3/52?
The SMBJ64CAHE3/52 has a maximum junction temperature (TJmax) of +150 °C, validated per its thermal characterization. When mounted on the recommended 0.2" × 0.2" copper pads, it sustains full 600 W surge capability up to +85 °C ambient; derating applies above that per Figure 2 in the Vishay datasheet 88392.
Can SMBJ64CAHE3/52 replace SMBJ64AHE3/52 in an existing design?
No - SMBJ64CAHE3/52 is bidirectional while SMBJ64AHE3/52 is unidirectional. Substituting them requires verifying circuit topology: SMBJ64CAHE3/52 may be used where polarity is undefined or AC-coupled, but it cannot replace SMBJ64AHE3/52 in DC-coupled unidirectional paths without risking improper clamping or increased leakage.
SMBJ64CAHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ64CAHE3/52 FAQ
1.How can I place an order for SMBJ64CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64CAHE3/52 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 SMBJ64CAHE3/52 reliable?
The price and inventory of SMBJ64CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ64CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ64CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64CAHE3/52?
SMBJ64CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64CAHE3/52 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 SMBJ64CAHE3/52?
For technical support, including SMBJ64CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64CAHE3/52 requirements.
6.How does Aetrix verify that SMBJ64CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ64CAHE3/52 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 SMBJ64CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ64CAHE3/52?
All SMBJ64CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64CAHE3/52, 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 SMBJ64CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ64CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64CAHE3/52 Tags
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