My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ64CAHE3_A/I
;;2.jpg)
- Part No.:
- SMBJ64CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64CAHE3_A/I.pdf
- Description:
- TVS DIODE 64VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,917
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ64CAHE3_A/I 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 stand-off 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 (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the SMBJ64CAHE3_A/I datasheet, SMBJ64CAHE3_A/I pinout, SMBJ64CAHE3_A/I application, or SMBJ64CAHE3_A/I equivalent, this device is selected for robust ESD and surge immunity in bidirectional AC-coupled or floating signal paths where polarity-agnostic clamping and AEC-Q101 qualification are required.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR min/max (71.1–78.6 V), VC (103 V), and IPPM (5.8 A) in either direction. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of lightning-induced surges and inductive switching transients without affecting normal signal integrity.
The device is AEC-Q101 qualified (suffix HE3), RoHS-compliant, and rated for TJ = –55 °C to +150 °C operation. Thermal resistance is RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting reliable performance under repetitive surge conditions when mounted per recommended 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 71.1 V / 78.6 V at IT = 1 mA - Confirmed breakdown threshold ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 103 V at 5.8 A - Clamped voltage level limits stress on downstream ICs during 10/1000 µs surge events. |
| PPPM | 600 W - Peak transient energy handling capacity with standard 10/1000 µs waveform at 0.01% duty cycle. |
| ID @ VWM | 1.0 µA - Ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance nodes. |
| TJ max. | +150 °C - Enables use in under-hood automotive and industrial environments with elevated ambient temperatures. |
| Package | SMB (DO-214AA) - Surface-mount footprint compatible with automated assembly; 5.59 mm × 4.06 mm × 2.20 mm body size. |
Pinout & Package
Two-terminal bidirectional device in SMB (DO-214AA) package; no polarity marking on case. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, with MSL Level 1 rating (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | Either terminal serves as anode or cathode depending on transient polarity; no DC bias dependency. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV) in properly designed PCB layouts with adequate copper pour. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes overvoltage overshoot during fast transients, reducing risk of latch-up or gate oxide damage in MOSFETs/ICs. |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; compatible with standard lead-free reflow profiles up to 260 °C peak. |
| Glass passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift vs. epoxy-passivated alternatives. |
Applications
| Industrial Sensor Signal Lines | Automotive CAN Bus Protection |
|---|---|
|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA, 0–10 V) from ESD and load dump in factory automation sensors. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal trace and ground, upstream of ADC input or op-amp buffer. Use Value: Limits transient voltage to ≤103 V while maintaining <1.0 µA leakage at 64 V, preserving measurement accuracy and long-term calibration stability. |
Use Scenario: Safeguarding CANH/CANL differential pair against ISO 7637-2 pulse 1/2/5a surges in body control modules. IC Role / Device Role / Timing Role: Symmetrical TVS pair (one per line) referenced to chassis ground, absorbing common-mode transients without disrupting 1 Mbps data integrity. Use Value: AEC-Q101 qualification and 150 °C max junction temperature ensure compliance with automotive environmental requirements and thermal derating margins. |
| Telecom Line Interface | AC Power Input Stage |
|
Use Scenario: Shielding Ethernet PHY magnetics or RS-485 transceivers from induced surges on outdoor cabling in security or building management systems. IC Role / Device Role / Timing Role: Bidirectional clamp across differential pair or single-ended line-to-ground, placed immediately after connector. Use Value: 600 W rating and sub-ns response suppress multi-kV transients before they propagate into sensitive PHY silicon, avoiding bit errors or reset events. |
Use Scenario: Secondary-side transient suppression on DC outputs of AC/DC adapters used in medical or test equipment. IC Role / Device Role / Timing Role: Clamp placed across +VOUT and GND to limit voltage spikes caused by transformer ringing or rectifier reverse recovery. Use Value: 64 V VWM aligns with 48–56 V nominal DC bus levels; 103 V VC prevents overvoltage damage to downstream regulators and load switches. |
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 | Halogen-free, RoHS-compliant, commercial-grade (non-AEC-Q101); same VWM, VBR, VC, and package. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select SMBJ64CA-M3 when cost optimization is prioritized and automotive reliability testing is unnecessary. |
| SMCJ64CAHE3_A/I | Same electrical specs but in larger SMC (DO-214AB) package; higher thermal mass, RθJA = 50 °C/W (typ.), IPPM = 12.3 A. | Better suited for higher-energy surge environments (e.g., mains-connected equipment) requiring >600 W dissipation margin. | Choose SMCJ64CAHE3_A/I when PCB layout allows larger footprint and system-level surge tests exceed 600 W capability. |
Compared with SMBJ64CA-M3 and SMCJ64CAHE3_A/I, the SMBJ64CAHE3_A/I uniquely balances AEC-Q101 compliance, SMB footprint constraints, and 600 W surge handling - making it optimal for space-constrained automotive and industrial modules needing certified reliability without board redesign.
Availability
SMBJ64CAHE3_A/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive CAN bus protection, and telecom line interface applications requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ64CAHE3_A/I 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, efficiency, and application-specific validation.
The SMBJ series was engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where compact size, repeatable clamping, and qualification rigor are non-negotiable.
FAQ
What is the clamping voltage of SMBJ64CAHE3_A/I at its rated peak pulse current?
The SMBJ64CAHE3_A/I has a maximum clamping voltage (VC) of 103 V at 5.8 A peak pulse current (IPPM), measured using the standard 10/1000 µs waveform. This value ensures downstream components experience controlled overvoltage stress during surge events, and it is confirmed in the Vishay datasheet Document Number 88392, page 2.
Is SMBJ64CAHE3_A/I suitable for automotive applications?
Yes, SMBJ64CAHE3_A/I is AEC-Q101 qualified (indicated by the HE3 suffix), making it suitable for automotive applications such as body electronics, infotainment interfaces, and CAN/LIN bus protection. Its operating junction temperature range of –55 °C to +150 °C and validated reliability testing meet automotive environmental requirements.
How does the bidirectional configuration of SMBJ64CAHE3_A/I affect its circuit placement?
The SMBJ64CAHE3_A/I is inherently bidirectional with no polarity marking, allowing placement across any two nodes subject to reversible overvoltage - such as differential signal pairs or AC-coupled lines. Unlike unidirectional TVS diodes, it requires no orientation check during assembly and provides symmetrical clamping regardless of transient polarity.
What is the maximum reverse leakage current of SMBJ64CAHE3_A/I at its stand-off voltage?
The SMBJ64CAHE3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 64 V stand-off voltage (VWM), measured at TA = 25 °C. This ultra-low leakage preserves signal fidelity in high-impedance sensor circuits and avoids unintended loading of precision analog stages.
Does SMBJ64CAHE3_A/I require special PCB layout considerations for optimal surge performance?
Yes - optimal performance requires mounting SMBJ64CAHE3_A/I on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. This layout reduces thermal impedance and maintains clamping effectiveness during repetitive surges; inadequate copper area may cause premature thermal failure or elevated VC.
SMBJ64CAHE3_A/I 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:
- -
- 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_A/I FAQ
1.How can I place an order for SMBJ64CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64CAHE3_A/I 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_A/I reliable?
The price and inventory of SMBJ64CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ64CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ64CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64CAHE3_A/I?
SMBJ64CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64CAHE3_A/I 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_A/I?
For technical support, including SMBJ64CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64CAHE3_A/I requirements.
6.How does Aetrix verify that SMBJ64CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ64CAHE3_A/I 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_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ64CAHE3_A/I?
All SMBJ64CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64CAHE3_A/I, 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_A/I part is unused and in its original packaging.
Return procedure for SMBJ64CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64CAHE3_A/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
