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Vishay General Semiconductor - Diodes Division SMBJ64CAHE3_B/I
- Part No.:
- SMBJ64CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64CAHE3_B/I.pdf
- Description:
- 600W,64V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,831
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Product details
Overview
SMBJ64CAHE3_B/I from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. 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 a 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives.
For engineers reviewing the SMBJ64CAHE3_B/I datasheet, SMBJ64CAHE3_B/I pinout, SMBJ64CAHE3_B/I application, or SMBJ64CAHE3_B/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, clamping performance under surge conditions, and precise mechanical dimensions for PCB layout validation.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection against voltage transients induced by inductive load switching or lightning surges without polarity sensitivity. 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.
The device meets J-STD-020 MSL Level 1 moisture sensitivity and is qualified to AEC-Q101 for automotive applications. Its 20 °C/W junction-to-lead thermal resistance enables effective heat transfer to PCB copper pads, and its 0.057 %/°C VBR temperature coefficient ensures predictable voltage tolerance drift over temperature.
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 1 mA - Confirmed breakdown threshold range; ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | 103 V at 5.8 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on downstream components. |
| PPPM | 600 W - Peak pulse power handling capability; validates suitability for IEC 61000-4-5 Level 3/4 surge immunity testing. |
| IPPM | 5.8 A - Peak pulse current supported at VC; directly correlates with energy absorption capacity (≈3.0 J). |
| TJ max. | +150 °C - Maximum junction temperature; enables use in high-ambient environments like engine control units. |
| RθJA | 100 °C/W - Thermal resistance to ambient on standard 0.2" × 0.2" copper pads; informs derating requirements above 25 °C. |
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 compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (bidirectional) | Accepts surge current in either polarity; connects to line being protected (e.g., CAN_H or RS-485 A). |
| Cathode | Transient current exit point (bidirectional) | Completes surge path to ground or return rail; requires low-inductance connection to minimize clamping overshoot. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validates compliance with IEC 61000-4-5 surge immunity standards for industrial and automotive interfaces. |
| AEC-Q101 qualified (HE3 suffix) | Confirms reliability for automotive powertrain and body electronics where extended temperature and lifetime validation are required. |
| MSL Level 1 (260 °C reflow peak) | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure or delamination. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD or inductive kick), improving system-level robustness. |
| Glass passivated junction | Ensures stable VBR and low leakage (<1.0 µA) over time and temperature, critical for long-life embedded systems. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers from inductive flyback spikes during MOSFET switching in 24 V DC motor controllers. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power supply rails and signal inputs to clamp transients below IC absolute maximum ratings. Use Value: Limits clamped voltage to 103 V, preventing damage to 75 V-rated op-amps and logic-level MOSFETs during repetitive 5.8 A surges. |
Use Scenario: Surge suppression on LIN bus lines and sensor inputs (e.g., ambient temperature, door position) exposed to load dump and battery disconnect transients. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing 600 W pulses without degradation, maintaining signal integrity during ISO 7637-2 Pulse 5a events. Use Value: AEC-Q101 qualification and 150 °C TJ max ensure uninterrupted operation in under-hood environments exceeding 105 °C ambient. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Input-stage protection on 48 V PoE-powered equipment (e.g., IP cameras, access points) subjected to lightning-induced surges on Ethernet pairs. IC Role / Device Role / Timing Role: Bidirectional clamping device placed between transformer center-tap and ground to shunt common-mode surges. Use Value: 103 V clamping voltage prevents latch-up in 5 V/3.3 V PHY ICs when coupled with appropriate series impedance. |
Use Scenario: Overvoltage protection of microcontroller I/O pins and relay coil drivers in washing machine main control boards exposed to relay contact bounce and pump motor back-EMF. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 µA) TVS placed at MCU input pins to prevent false triggering or latch-up during 100 ns–1 µs transients. Use Value: Glass-passivated junction ensures <1 µA leakage at 64 V, eliminating standby current errors in battery-backed real-time clocks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CAHM3_B/I | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free material compliance is mandated (e.g., EU WEEE, specific OEM specs). | Choose SMBJ64CAHM3_B/I when halogen-free construction is required; otherwise SMBJ64CAHE3_B/I offers standard RoHS compliance. |
| SMAJ64CAHE3_A/H | Lower 400 W PPPM, SMA (DO-214AC) package, same VWM/VBR/VC but reduced surge current (4.2 A). | Not suitable for 600 W surge requirements; limited to lower-energy transients or space-constrained designs where SMB footprint is unavailable. | Select SMAJ64CAHE3_A/H only if board area is constrained and 400 W rating suffices; SMBJ64CAHE3_B/I provides 50 % higher energy handling. |
Compared with SMBJ64CAHM3_B/I, the SMBJ64CAHE3_B/I offers identical protection performance with standard RoHS compliance; versus SMAJ64CAHE3_A/H, it delivers 50 % higher peak pulse power and superior thermal dissipation via larger SMB package - critical for sustained surge duty cycles in industrial controls.
Availability
SMBJ64CAHE3_B/I is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and consumer appliance control boards requiring stable component supply and AEC-Q101-qualified surge protection.
Supply support for SMBJ64CAHE3_B/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive-grade qualification.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where consistent clamping performance and long-term stability are essential.
FAQ
What is the clamping voltage of SMBJ64CAHE3_B/I at its rated peak pulse current?
The SMBJ64CAHE3_B/I has a maximum clamping voltage (VC) of 103 V at its rated peak pulse current (IPPM) of 5.8 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ64CAHE3_B/I maintains this clamping performance across its full operating temperature range.
Is SMBJ64CAHE3_B/I qualified for automotive applications?
Yes, SMBJ64CAHE3_B/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its ordering code. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating its use in automotive body electronics, infotainment systems, and power distribution modules where reliability under thermal and vibration stress is mandatory.
What is the standoff voltage (VWM) and why does it matter for SMBJ64CAHE3_B/I?
The standoff voltage (VWM) of SMBJ64CAHE3_B/I is 64 V - the maximum DC or RMS voltage the device can withstand continuously without entering conduction. This parameter ensures the SMBJ64CAHE3_B/I remains non-conductive during normal operation, minimizing leakage and power loss, while still triggering reliably during overvoltage events exceeding its breakdown range (71.1–78.6 V).
How does the SMB (DO-214AA) package of SMBJ64CAHE3_B/I affect thermal performance?
The SMB (DO-214AA) package of SMBJ64CAHE3_B/I provides a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W on standard 0.2" × 0.2" copper pads, and 20 °C/W junction-to-lead. This enables efficient heat dissipation during repetitive surge events and supports operation up to +150 °C junction temperature - a key advantage over smaller packages like SMA when managing 600 W peak power pulses.
Can SMBJ64CAHE3_B/I be used in bidirectional signal line protection?
Yes, SMBJ64CAHE3_B/I is explicitly designed for bidirectional applications, as indicated by the "CA" suffix. Its symmetrical VBR and VC characteristics in both polarities make it suitable for protecting AC-coupled or differential signal lines such as RS-485, CAN, or Ethernet PHY interfaces - unlike unidirectional variants which require correct polarity orientation and cannot suppress negative-going transients.
SMBJ64CAHE3_B/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:
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ64CAHE3_B/I FAQ
1.How can I place an order for SMBJ64CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64CAHE3_B/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_B/I reliable?
The price and inventory of SMBJ64CAHE3_B/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_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ64CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64CAHE3_B/I?
SMBJ64CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64CAHE3_B/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_B/I?
For technical support, including SMBJ64CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64CAHE3_B/I requirements.
6.How does Aetrix verify that SMBJ64CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ64CAHE3_B/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_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ64CAHE3_B/I?
All SMBJ64CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64CAHE3_B/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_B/I part is unused and in its original packaging.
Return procedure for SMBJ64CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64CAHE3_B/I Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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