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Vishay General Semiconductor - Diodes Division SMBG64CAHE3/52
- Part No.:
- SMBG64CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG64CAHE3/52.pdf
- Description:
- TVS DIODE 64VWM 103VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,459
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Product details
Overview
SMBG64CAHE3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of signal and power lines. It features a 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), clamping voltage of 103 V at 5.8 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG64CAHE3/52 datasheet, SMBG64CAHE3/52 pinout, SMBG64CAHE3/52 application, or SMBG64CAHE3/52 equivalent, key selection criteria include bidirectional clamping behavior, low clamping ratio (VC/VWM ≈ 1.61), junction temperature range (−55 °C to +150 °C), RoHS-compliant AEC-Q101 qualification, and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
This TVS operates symmetrically in both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), critical for suppressing ESD and lightning-induced transients before sensitive downstream circuitry is damaged.
The device uses a planar silicon avalanche structure optimized for low incremental surge resistance and repeatable clamping performance under repetitive 0.01% duty-cycle surges. Thermal resistance (RθJA = 100 °C/W) and RθJL = 20 °C/W reflect its suitability for PCB layouts with minimal copper thermal relief, while MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for protected line. |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 103 V at 5.8 A - Clamped voltage during 600 W transient; limits stress on downstream ICs or MOSFETs. |
| PPPM | 600 W (10/1000 µs) - Peak surge energy handling capacity; validated per ANSI/IEEE C62.35 waveform standards. |
| ID @ VWM | ≤1.0 µA - Ultra-low reverse leakage at rated stand-off; preserves signal integrity and battery life in always-on systems. |
| TJ Range | −55 °C to +150 °C - Full automotive-grade junction temperature range; supports under-hood and ADAS module deployment. |
| Qualification | AEC-Q101 qualified - Validated reliability for automotive electronics per stress test requirements (HTOL, TCT, etc.). |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing leadframe with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. No polarity marking - bidirectional symmetry eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Both terminals function identically; surge current flows bidirectionally through the same avalanche junction. |
| Leads (gull-wing) | Thermal and electrical interface | Provide mechanical anchoring, low-inductance surge conduction, and heat dissipation to PCB copper pads (0.2" × 0.2"). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines, differential buses (e.g., CAN, RS-485), or ungrounded sensor outputs without polarity routing constraints. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) when mounted per recommended pad layout. |
| AEC-Q101 qualification | Validated for automotive powertrain, body control, and infotainment modules requiring long-term reliability under thermal cycling and vibration. |
| MSL Level 1, 260 °C peak | Supports standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk. |
| Glass-passivated junction | Ensures stable VBR tolerance, low leakage drift over time, and immunity to humidity-induced parameter shift. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-supplied ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Primary clamping element placed at board entry point, shunting surge energy to ground before DC-DC regulators or microcontrollers. Use Value: Limits transient voltage to ≤103 V, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic and power management ICs. | Use Scenario: Safeguarding analog output pins of pressure or temperature sensors connected to PLC analog input cards. IC Role / Device Role / Timing Role: Bidirectional shunt protector on 4–20 mA or 0–10 V signal lines exposed to field wiring induced surges. Use Value: Maintains signal fidelity with <1.0 µA leakage at 64 V, while clamping ±1 kV EFT bursts to safe levels for precision ADC front-ends. |
| Automotive CAN Bus Protection | Consumer USB Port ESD Protection |
Use Scenario: Shielding high-speed CAN FD transceivers (e.g., TJA1044) from ISO 16750-2 electrical disturbances and ESD events. IC Role / Device Role / Timing Role: Low-capacitance (typ. 100 pF at 0 V) bidirectional clamp across CANH–CANL differential pair. Use Value: Preserves signal edge integrity (tr < 1 ns response) without distorting >2 Mbps CAN FD waveforms or increasing bit error rate. | Use Scenario: Hardening USB 2.0 data lines (D+/D−) in automotive infotainment head units against contact discharge per IEC 61000-4-2 Level 4 (±15 kV). IC Role / Device Role / Timing Role: Secondary-level TVS placed after common-mode choke, providing final-stage low-clamp-voltage protection. Use Value: Achieves sub-110 V clamping at 5.8 A, reducing stress on USB PHY transceivers and avoiding system resets during hot-plug events. |
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 | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating), different package (SMB, DO-214AA) with higher RθJA (110 °C/W). | Less effective thermal dissipation in high-density layouts; not AEC-Q101 qualified. | Select when cost sensitivity outweighs automotive qualification or thermal margin requirements. |
| SMCJ64CAHE3/A | Higher PPPM = 1500 W, larger SMC (DO-214AB) package, same VWM/VBR, AEC-Q101 qualified. | Requires more PCB area; better suited for primary-level protection in high-energy surge environments (e.g., alternator lines). | Select when system-level surge testing exceeds IEC 61000-4-5 Level 4 or when higher single-pulse energy absorption is required. |
Compared with SMBJ64CA-E3/52 and SMCJ64CAHE3/A, SMBG64CAHE3/52 delivers optimal balance of AEC-Q101 compliance, compact SMBG footprint, and verified 600 W surge capability-making it ideal for space-constrained automotive modules where qualification and thermal performance are jointly critical.
Availability
SMBG64CAHE3/52 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface hardening, and consumer USB port protection requiring stable component supply and long-term lifecycle support.
Supply support for SMBG64CAHE3/52 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 SMBG-series TRANSZORB® TVS family is engineered for high-reliability transient suppression in automotive, industrial, and telecom infrastructure-prioritizing low clamping ratio, AEC-Q101 qualification, and robust surge repetition capability.
FAQ
What is the clamping voltage of SMBG64CAHE3/52 and how is it measured?
The SMBG64CAHE3/52 has a maximum clamping voltage (VC) of 103 V, measured at a peak pulse current (IPPM) of 5.8 A using the standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed per Vishay's datasheet (Document Number 88456, Rev. 09-Jan-2024) and reflects worst-case voltage seen by protected circuitry during a 600 W transient event. The SMBG64CAHE3/52 maintains this clamping performance across its full operating temperature range.
Is SMBG64CAHE3/52 suitable for automotive applications?
Yes, SMBG64CAHE3/52 is explicitly AEC-Q101 qualified (per datasheet note and ordering code "HE3"), making it suitable for automotive powertrain, body electronics, and ADAS modules. Its −55 °C to +150 °C junction temperature range, MSL Level 1 reflow rating, and validation against HTOL, temperature cycling, and ESD stress ensure reliability in harsh vehicle environments. The SMBG64CAHE3/52 meets requirements for ISO 7637-2 and ISO 16750-2 compliance testing when applied per recommended layout.
How does the bidirectional nature of SMBG64CAHE3/52 affect its circuit implementation?
The SMBG64CAHE3/52 has no polarity marking and conducts identically in both directions, allowing direct placement across any two points needing symmetrical overvoltage protection-such as CANH/CANL, RS-485 A/B, or AC signal lines. Unlike unidirectional TVS diodes, the SMBG64CAHE3/52 eliminates orientation errors during assembly and avoids forward-bias conduction issues in AC-coupled paths. Its symmetric VBR (71.1–78.6 V) ensures matched clamping in either polarity.
What is the junction capacitance of SMBG64CAHE3/52 and why does it matter?
The SMBG64CAHE3/52 exhibits typical junction capacitance of ~100 pF at 0 V bias (per Fig. 4 in datasheet 88456), which increases slightly at higher reverse voltages. This value is critical for high-speed interfaces: in CAN FD or USB 2.0 applications, excessive capacitance can distort signal edges or attenuate high-frequency content. At 100 pF, the SMBG64CAHE3/52 strikes a balance between low clamping voltage and acceptable bandwidth-verified to preserve >2 Mbps CAN FD eye diagrams and USB full-speed signal integrity.
Can SMBG64CAHE3/52 replace SMBJ64CA-E3/52 in an existing design?
SMBG64CAHE3/52 is not a drop-in replacement for SMBJ64CA-E3/52 due to differing packages (SMBG vs. SMB) and thermal characteristics-SMBG offers lower RθJA (100 °C/W vs. 110 °C/W) and AEC-Q101 qualification, but requires updated land pattern and stencil design. While electrical parameters (VWM, VBR, VC, PPPM) match closely, the SMBG64CAHE3/52's enhanced automotive qualification and thermal performance justify redesign effort where reliability and thermal margin are prioritized over legacy footprint reuse.
SMBG64CAHE3/52 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)
SMBG64CAHE3/52 FAQ
1.How can I place an order for SMBG64CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG64CAHE3/52 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 SMBG64CAHE3/52 reliable?
The price and inventory of SMBG64CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG64CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG64CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG64CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG64CAHE3/52?
SMBG64CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG64CAHE3/52 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 SMBG64CAHE3/52?
For technical support, including SMBG64CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG64CAHE3/52 requirements.
6.How does Aetrix verify that SMBG64CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG64CAHE3/52 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 SMBG64CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG64CAHE3/52?
All SMBG64CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG64CAHE3/52, 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 SMBG64CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBG64CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG64CAHE3/52 Tags
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