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Vishay General Semiconductor - Diodes Division SMBG64CA-E3/52
- Part No.:
- SMBG64CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG64CA-E3/52.pdf
- Description:
- TVS DIODE 64VWM 103VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,429
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Product details
Overview
SMBG64CA-E3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping ESD and surge transients on signal/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 maximum clamping voltage (VC) at 5.8 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG64CA-E3/52 datasheet, SMBG64CA-E3/52 pinout, SMBG64CA-E3/52 application, or SMBG64CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM ≈ 1.61), MSL Level 1 reflow compatibility, TJ max = 150 °C, and compliance with UL 497B for telecom/sensor protection.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and IPPM specifications in either direction. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5).
The device uses a planar silicon avalanche structure optimized for low incremental surge resistance and repeatable clamping behavior under repetitive 0.01% duty-cycle pulses. Thermal design relies on RθJA = 100 °C/W (on 5.0 mm × 5.0 mm Cu pads) and RθJL = 20 °C/W, supporting operation from –55 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing margin. |
| VBR (min/max) | 71.1 V / 78.6 V at 1 mA - Ensures reliable avalanche initiation without premature conduction during normal operation. |
| VC @ IPPM | 103 V at 5.8 A - Clamped voltage seen by protected circuit during 600 W transient; limits stress on downstream ICs. |
| PPPM | 600 W (10/1000 μs) - Peak surge energy handling capacity; supports industrial and automotive surge immunity requirements. |
| ID @ VWM | <1.0 μA - Ultra-low leakage preserves signal integrity and battery life in high-impedance sensor interfaces. |
| TJ max | +150 °C - Enables placement near heat sources (e.g., power converters) in engine control units or ADAS modules. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile (max height 1.90 mm), UL 94 V-0 molded compound, matte tin-plated leads solderable per J-STD-002/JESD 22-B102. Bidirectional construction means no polarity marking; terminals are symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Either terminal serves as input/output for bidirectional clamping; no cathode band marking required. |
| Case (exposed pad) | Thermal and mechanical anchor | Not electrically connected; provides thermal conduction to PCB copper and mechanical stability during reflow. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, LIN, RS-485) without polarity concerns. |
| 600 W peak pulse power | Meets IEC 61000-4-5 Level 4 (4 kV line-to-line) when used with appropriate series impedance. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture-related delamination risk. |
| UL 497B recognition (QVGQ2) | Validated for telecom/data line protector classification, simplifying safety certification for end equipment. |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio alternatives. |
Applications
| Automotive Sensor Protection | Industrial Fieldbus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments subject to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed between sensor output and microcontroller ADC input to clamp transients before they reach sensitive analog front-end. Use Value: Prevents ADC saturation and latch-up during 100 V/50 ms load dump events while maintaining <1 μA leakage for accurate 12-bit measurements. | Use Scenario: Shielding RS-485 transceiver I/O pins in programmable logic controllers exposed to long cable runs and ground potential differences. IC Role / Device Role / Timing Role: Placed across differential pair (A/B) and common-mode (GND) to suppress common-mode surges up to ±2 kV per IEC 61000-4-5. Use Value: Maintains signal integrity at 10 Mbps data rate by limiting clamping overshoot to ≤103 V, avoiding receiver input damage. |
| Automotive Body Control Module | Telecom Line Interface |
Use Scenario: Safeguarding LIN bus transceivers in door modules against ESD (±8 kV contact) and battery reverse connection transients. IC Role / Device Role / Timing Role: Connected between LIN pin and ground to absorb fast-rising ESD events and slow-rising reverse-battery induced surges. Use Value: AEC-Q101 qualification ensures survival over 15-year vehicle lifetime; low capacitance avoids signal edge degradation at 19.2 kbps. | Use Scenario: Protecting Ethernet PHY interface (10/100BASE-TX) magnetics secondary side from lightning-induced surges entering via telephone line coupling. IC Role / Device Role / Timing Role: Installed across transformer center-taps and ground to clamp common-mode surges before reaching PHY's internal ESD structures. Use Value: UL 497B recognition satisfies telecom safety standards; 64 V VWM aligns with typical 48 V phantom power margins. |
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 lower PPPM = 600 W (same rating), different package (SMB vs SMBG); slightly larger footprint (DO-214AA). | Less suitable for ultra-dense layouts due to 2.79 mm height vs SMBG's 1.90 mm; same thermal performance on equivalent pads. | Select SMBJ64CA only if legacy SMB footprint is already established and height constraint is not critical. |
| SMCJ64CA | Higher PPPM = 1500 W, same VWM/VBR, larger SMC (DO-214AB) package; RθJA = 35 °C/W vs 100 °C/W. | Better for high-energy surges (e.g., 10/1000 μs >100 A), but excessive for typical sensor-level protection; requires more PCB area. | Choose SMCJ64CA only when system-level surge testing exceeds 600 W requirements-otherwise over-engineered and costlier. |
Compared with SMBJ64CA and SMCJ64CA, SMBG64CA-E3/52 delivers optimal balance of compact size (SMBG), automotive qualification, and precise 600 W surge handling-making it ideal for space-constrained, AEC-Q101–mandated applications where board real estate and thermal profile are tightly controlled.
Availability
SMBG64CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial fieldbus nodes, body control modules, and telecom line protection requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBG64CA-E3/52 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 TRANSZORB® series was engineered for high-reliability surface-mount transient suppression in automotive, industrial, and telecom systems where compact size, AEC-Q101 compliance, and repeatable clamping performance are mandatory.
FAQ
What does the "CA" suffix indicate in SMBG64CA-E3/52?
The "CA" suffix denotes a bidirectional configuration, meaning SMBG64CA-E3/52 provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMBG64A), it has no cathode marking and functions identically regardless of polarity-critical for protecting AC-coupled or differential signal paths such as CAN or RS-485 where voltage swings occur in both directions.
Is SMBG64CA-E3/52 compatible with lead-free reflow processes?
Yes, SMBG64CA-E3/52 meets J-STD-020 MSL Level 1 with a maximum peak reflow temperature of 260 °C, making it fully compatible with standard lead-free soldering profiles. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for reliable wetting and intermetallic formation, and its molding compound is RoHS compliant per the E3 suffix designation.
How does the clamping voltage of SMBG64CA-E3/52 compare to its stand-off voltage?
SMBG64CA-E3/52 has a stand-off voltage (VWM) of 64 V and a maximum clamping voltage (VC) of 103 V at 5.8 A, yielding a clamping ratio of 1.61. This ratio indicates how tightly the device limits overvoltage during surge events-lower ratios provide better protection margin for downstream ICs rated for ≤100 V absolute maximum ratings, such as many automotive microcontrollers and transceivers.
Can SMBG64CA-E3/52 be used in place of a unidirectional TVS like SMBG64A?
No-SMBG64CA-E3/52 is bidirectional and lacks polarity marking, while SMBG64A is unidirectional with a defined cathode band. Substituting SMBG64CA-E3/52 for SMBG64A in DC-biased circuits may cause unintended forward conduction or failure to clamp correctly. Use SMBG64CA-E3/52 only where true bidirectional protection is required, such as across differential pairs or AC signal lines.
What is the maximum operating temperature range for SMBG64CA-E3/52?
SMBG64CA-E3/52 is rated for an operating junction and storage temperature range of –55 °C to +150 °C. This wide range supports deployment in under-hood automotive applications (e.g., engine control, transmission sensors) and industrial environments with ambient extremes, provided PCB copper pad layout follows Vishay's recommended 5.0 mm × 5.0 mm thermal pad dimensions to maintain thermal resistance within specification.
SMBG64CA-E3/52 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG64CA-E3/52 FAQ
1.How can I place an order for SMBG64CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG64CA-E3/52 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 SMBG64CA-E3/52 reliable?
The price and inventory of SMBG64CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG64CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG64CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG64CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG64CA-E3/52?
SMBG64CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG64CA-E3/52 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 SMBG64CA-E3/52?
For technical support, including SMBG64CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG64CA-E3/52 requirements.
6.How does Aetrix verify that SMBG64CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG64CA-E3/52 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 SMBG64CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG64CA-E3/52?
All SMBG64CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG64CA-E3/52, 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 SMBG64CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBG64CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG64CA-E3/52 Tags
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