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Vishay General Semiconductor - Diodes Division SMBG64CAHE3/5B
- Part No.:
- SMBG64CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG64CAHE3/5B.pdf
- Description:
- TVS DIODE 64VWM 103VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,898
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Product details
Overview
SMBG64CAHE3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping voltage transients on signal or power lines. It features 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), <103 V clamping voltage at peak surge current, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG64CAHE3/5B datasheet, SMBG64CAHE3/5B pinout, SMBG64CAHE3/5B application, or SMBG64CAHE3/5B equivalent, key selection criteria include bidirectional clamping capability, 600 W surge rating, 150 °C max junction temperature, RoHS-compliant AEC-Q101 qualification, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR, IPPM, and VC specifications for positive and negative surges. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), enabling protection of sensitive analog and digital interfaces against ESD, lightning-induced transients, and inductive switching spikes.
The device uses a low-inductance SMBG (DO-215AA) surface-mount package with matte tin-plated leads, rated MSL Level 1 (260 °C reflow peak), and achieves thermal resistance of 100 °C/W (junction-to-ambient) when mounted per recommended 0.2" × 0.2" copper pad layout.
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 line. |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - Confirmed breakdown threshold range; ensures reliable triggering above VWM with margin. |
| VC @ IPPM | 103 V - Clamped voltage during 600 W surge (10/1000 µs); limits stress on downstream ICs or MOSFETs. |
| PPPM | 600 W - Peak pulse power handling; supports high-energy transients without failure under defined waveform. |
| IPPM | 5.8 A - Peak pulse current corresponding to 600 W at 103 V; determines minimum trace/solder joint robustness. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial environments. |
| AEC-Q101 | Qualified - Validated for automotive reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking; case meets UL 94 V-0 flammability rating and JEDEC J-STD-020 MSL Level 1 reflow profile (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts surge current during negative excursions; connects to protected line or ground return path. |
| Cathode | Transient current entry (positive polarity) | Accepts surge current during positive excursions; symmetrical role to Anode in bidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware layout in AC-coupled or floating signal paths. |
| 600 W peak pulse power | Withstands 10/1000 µs transients up to 5.8 A at 103 V - protects against ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges. |
| AEC-Q101 qualification | Validated for automotive under-hood applications - ensures reliability across -55 °C to +150 °C with extended lifetime under thermal cycling. |
| Low-profile SMBG package | Height ≤ 0.030" (0.76 mm) - enables compact PCB designs in space-constrained modules such as ADAS sensors or body control units. |
| Glass-passivated junction | Stable leakage <1.0 µA at 64 V - prevents DC loading on high-impedance sensor inputs or reference lines. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and microcontroller GPIOs in vehicle door modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, absorbing transients before they reach the transceiver's ESD structure. Use Value: Limits voltage to ≤103 V during 600 W surges, preventing latch-up or permanent damage to AEC-Q100 qualified transceivers like TCAN1042. | Use Scenario: Safeguarding differential CAN_H/CAN_L lines in factory automation PLCs subjected to motor drive switching noise and ground bounce. IC Role / Device Role / Timing Role: Common-mode TVS pair (one per line) referenced to chassis ground, suppressing >1 kV common-mode transients per IEC 61000-4-5. Use Value: Maintains signal integrity by clamping within 103 V while adding <1 pF junction capacitance at 0 V bias - no data rate degradation at 1 Mbps. |
| Consumer Power Adapter Input | Telecom DSL Line Interface |
Use Scenario: Secondary-side overvoltage protection on 12 V/24 V DC outputs of wall adapters used in smart home hubs. IC Role / Device Role / Timing Role: Final-stage clamp after primary-side regulation and filtering, catching residual transients from shared AC mains or nearby switching loads. Use Value: Responds in <1 ns to limit output overshoot to 103 V, protecting downstream PMICs and USB-C PD controllers without affecting steady-state regulation. | Use Scenario: Protecting ADSL/VDSL line drivers and receivers in customer premises equipment (CPE) connected to outdoor telephone lines vulnerable to lightning induction. IC Role / Device Role / Timing Role: Series-connected bidirectional TVS on tip/ring lines, shunting surges to ground before reaching transformer-coupled front-end circuitry. Use Value: Withstands repeated 600 W surges per ITU-T K.20/K.21 requirements while maintaining <1 µA leakage at 64 V - avoids false disconnects or line noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA | Same VWM/VBR/VC, but unqualified for AEC-Q101; lower surge rating (600 W same, but not validated for automotive temp cycling) | Not suitable for under-hood automotive use; acceptable for industrial or consumer grade where AEC-Q101 is not mandated | Select SMBJ64CA only if AEC-Q101 compliance is unnecessary and cost is prioritized. |
| SMAJ64CA | Same electrical specs but in smaller SMA (DO-214AC) package; higher RθJA (150 °C/W vs. 100 °C/W), lower IPPM derating above 25 °C | Limited to lower-power or ambient-temperature applications; unsuitable for high-temperature enclosures or sustained surge duty | Choose SMAJ64CA only for space-constrained non-automotive designs with verified thermal margin. |
Compared with SMBJ64CA and SMAJ64CA, the SMBG64CAHE3/5B delivers guaranteed AEC-Q101 reliability and superior thermal performance in the SMBG package-critical for automotive ECUs and industrial controllers requiring long-term surge immunity at elevated ambient temperatures.
Availability
SMBG64CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, consumer power adapter outputs, and telecom DSL line interfaces requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMBG64CAHE3/5B 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was developed for high-reliability surface-mount transient suppression in automotive and industrial systems, combining AEC-Q101 qualification, low-profile packaging, and precise bidirectional clamping for next-generation electronic control units.
FAQ
What is the maximum clamping voltage of SMBG64CAHE3/5B at its rated peak pulse current?
The SMBG64CAHE3/5B has a maximum clamping voltage (VC) of 103 V at its peak pulse current (IPPM) of 5.8 A, measured under the standard 10/1000 µs waveform. This value ensures downstream components see limited overvoltage stress during surge events, and it is confirmed in the Vishay datasheet Document Number 88456, page 2, Electrical Characteristics table for SMBG64A.
Is SMBG64CAHE3/5B suitable for automotive applications?
Yes, SMBG64CAHE3/5B is AEC-Q101 qualified (per datasheet note on page 3), RoHS compliant, and rated for operation from –55 °C to +150 °C. Its SMBG package meets MSL Level 1 and is designed for under-hood environments, making it suitable for automotive applications such as body control modules, ADAS sensors, and infotainment power rails.
What does the "HE3" suffix indicate in SMBG64CAHE3/5B?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification (per Mechanical Data section, page 1). It distinguishes this variant from industrial-grade "E3" or halogen-free "HM3" versions, confirming that SMBG64CAHE3/5B meets both environmental and automotive reliability standards.
How does the SMBG64CAHE3/5B differ from unidirectional TVS diodes like SMBG64A?
SMBG64CAHE3/5B is bidirectional, meaning it clamps voltage transients equally in both polarities with symmetric VBR and VC; SMBG64A is unidirectional and requires correct cathode orientation. The "CA" suffix explicitly indicates bidirectional functionality, critical for AC-coupled or floating signal lines where polarity is undefined.
What is the recommended PCB pad layout for SMBG64CAHE3/5B to achieve rated 600 W surge capability?
Vishay specifies mounting SMBG64CAHE3/5B on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal (page 1, Notes section). This layout ensures thermal dissipation sufficient for full 600 W rating; smaller pads reduce IPPM capability due to increased junction temperature and must be derated per Figure 2 in the datasheet.
SMBG64CAHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG64CAHE3/5B FAQ
1.How can I place an order for SMBG64CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG64CAHE3/5B 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 SMBG64CAHE3/5B reliable?
The price and inventory of SMBG64CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG64CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG64CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG64CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG64CAHE3/5B?
SMBG64CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG64CAHE3/5B 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 SMBG64CAHE3/5B?
For technical support, including SMBG64CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG64CAHE3/5B requirements.
6.How does Aetrix verify that SMBG64CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG64CAHE3/5B 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 SMBG64CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG64CAHE3/5B?
All SMBG64CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG64CAHE3/5B, 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 SMBG64CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBG64CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG64CAHE3/5B Tags
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