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Vishay General Semiconductor - Diodes Division SMBG6.5CA-M3/52
- Part No.:
- SMBG6.5CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5CA-M3/52.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,156
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Product details
Overview
SMBG6.5CA-M3/52 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 a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 μs), and clamps to ≤11.2 V at 500 A peak surge current - used in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the SMBG6.5CA-M3/52 datasheet, SMBG6.5CA-M3/52 pinout, SMBG6.5CA-M3/52 application, or SMBG6.5CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), and compatibility with 0.2" × 0.2" copper pad layout per JEDEC standards.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both polarities, enabling robust ESD and surge suppression without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the low incremental surge resistance supports fast energy dissipation during transient events.
The SMBG6.5CA-M3/52 is rated for -55 °C to +150 °C operating junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its thermal resistance (RθJA = 100 °C/W) reflects performance on standard 0.2" × 0.2" copper pads - critical for thermal management in high-reliability automotive and industrial PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - guaranteed avalanche onset range; ensures predictable turn-on across production lots |
| IPPM | 500 A (10/1000 μs) - peak surge current handling capacity; determines protection level against IEC 61000-4-5 Level 4 surges |
| VC | ≤11.2 V at IPPM - maximum clamped voltage seen by protected circuit; limits stress on downstream ICs like microcontrollers or transceivers |
| PPPM | 600 W - peak pulse power rating; defines energy absorption capability under standardized surge waveform |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments and sealed industrial enclosures |
| Leakage (ID) | ≤1.0 μA at VWM - ultra-low reverse leakage preserves signal integrity and battery life in always-on systems |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking. Case dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | One terminal of symmetrical avalanche junction; conducts when voltage exceeds VBR in either direction |
| Cathode | Transient current entry (negative half-cycle) | Second terminal of symmetrical junction; identical electrical role to Anode due to bidirectional design |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock per JESD22 standards |
| Halogen-free & RoHS compliant (M3) | Meets IPC-1752 material declaration requirements and JESD201 Class 2 whisker resistance for long-term solder joint integrity |
| 600 W peak pulse power (10/1000 μs) | Supports protection against IEC 61000-4-5 combination wave surges up to 4 kV open-circuit / 2 kA short-circuit |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage exposure during transients - critical for safeguarding 3.3 V or 5 V logic interfaces |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow assembly without moisture-induced popcorn failure or delamination |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, responding within <1 ns to limit transient overshoot. Use Value: Prevents latch-up or permanent damage to 5 V tolerant transceivers by clamping spikes to ≤11.2 V while maintaining <1.0 μA leakage at 6.5 V nominal bus voltage. | Use Scenario: Shielding PLC digital input modules from field-wiring induced surges caused by relay coil de-energization or lightning coupling. IC Role / Device Role / Timing Role: Primary front-end surge limiter on 24 V DC input channels, absorbing repetitive 600 W pulses without degradation. Use Value: Enables >100,000 surge cycles at 500 A (10/1000 μs) per JEDEC standards, extending field service life in factory automation equipment. |
| Consumer USB Port Protection | Telecom Line Interface |
Use Scenario: Safeguarding USB 2.0 data lines (D+/D−) against ESD events (>15 kV air discharge) in portable docking stations and hubs. IC Role / Device Role / Timing Role: Low-capacitance TVS array element providing sub-nanosecond response to electrostatic discharges. Use Value: Delivers <0.5 pF junction capacitance at zero bias (per family data), preserving signal integrity up to 480 Mbps without eye diagram distortion. | Use Scenario: Protecting Ethernet PHY interfaces and POTS line drivers from induced surges on outdoor telecom wiring. IC Role / Device Role / Timing Role: Secondary-level surge suppressor mounted adjacent to RJ-45 connector, coordinating with primary gas discharge tube (GDT) stage. Use Value: Clamps common-mode surges to <12 V differential swing, preventing saturation of transformer-coupled receivers and maintaining link stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating), different package: SMB (DO-214AA), slightly larger footprint (4.57 mm × 3.94 mm vs. SMBG's 4.57 mm × 3.94 mm - identical L/W but different leadform) | Requires PCB pad revision due to gull-wing vs. flat-lead SMBG geometry; not drop-in compatible | Select SMBJ6.5CA only if existing layout uses SMB footprint and thermal constraints allow higher RθJA (125 °C/W typical) |
| SMCJ6.5CA | Higher PPPM = 1500 W, same VWM/VBR, larger SMC (DO-214AB) package; VC = 11.1 V at 135 A | Overqualified for 600 W surge needs; occupies ~2.5× board area; suited for primary-level AC line protection | Choose SMCJ6.5CA only when system-level surge immunity requires >1 kA handling or coordination with upstream GDTs |
Compared with SMBJ6.5CA and SMCJ6.5CA, the SMBG6.5CA-M3/52 offers optimal balance of compact DO-215AA footprint, AEC-Q101 qualification, and precise 600 W/500 A surge capability - making it preferred for space-constrained automotive and industrial PCBs where MSL Level 1 reflow and halogen-free compliance are mandatory.
Availability
SMBG6.5CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface designs requiring stable component supply, AEC-Q101 validation, and halogen-free manufacturing compliance.
Supply support for SMBG6.5CA-M3/52 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 was developed specifically for high-density, high-reliability transient suppression in automotive and industrial environments - combining AEC-Q101 qualification, low-profile packaging, and consistent clamping performance across temperature and lifetime.
FAQ
What does the "CA" suffix indicate in SMBG6.5CA-M3/52?
The "CA" suffix denotes a bidirectional configuration - meaning the SMBG6.5CA-M3/52 provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics for positive and negative voltage excursions. This eliminates the need for polarity-aware placement and simplifies layout for AC-coupled or differential signal lines.
Is SMBG6.5CA-M3/52 suitable for protecting 3.3 V logic circuits?
No - the SMBG6.5CA-M3/52 has a 6.5 V stand-off voltage (VWM) and minimum breakdown of 7.22 V, making it inappropriate for direct protection of 3.3 V rails. Using it would risk premature conduction or insufficient margin; instead, select a TVS with VWM ≤ 3.3 V (e.g., SMBG3.3CA) to ensure reliable operation without interfering with normal signal levels.
How does the M3 suffix affect the SMBG6.5CA-M3/52 specification?
The M3 suffix indicates halogen-free, RoHS-compliant construction with matte tin-plated leads meeting JESD201 Class 2 whisker resistance and J-STD-002 solderability. It does not alter electrical parameters but ensures compliance with environmental regulations and long-term interconnect reliability in high-vibration or high-humidity deployments.
What is the maximum allowable PCB pad size for SMBG6.5CA-M3/52 to achieve rated 600 W performance?
To achieve the full 600 W peak pulse power rating, SMBG6.5CA-M3/52 must be mounted on minimum recommended copper pads: 0.2" × 0.2" (5.0 mm × 5.0 mm) per terminal, as specified in the Vishay datasheet. Smaller pads reduce thermal dissipation and derate IPPM and PPPM per Figure 2 in document 88456.
Does SMBG6.5CA-M3/52 meet UL 497B certification?
Yes - the SMBG6.5CA-M3/52 carries Underwriters Laboratories recognition under UL 497B (file E136766) for protector classification QVGQ2, covering both unidirectional and bidirectional configurations. This validates its suitability for use in safety-critical telecom and industrial signal-line protection applications.
SMBG6.5CA-M3/52 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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 53.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG6.5CA-M3/52 FAQ
1.How can I place an order for SMBG6.5CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5CA-M3/52 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 SMBG6.5CA-M3/52 reliable?
The price and inventory of SMBG6.5CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG6.5CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG6.5CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5CA-M3/52?
SMBG6.5CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5CA-M3/52 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 SMBG6.5CA-M3/52?
For technical support, including SMBG6.5CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5CA-M3/52 requirements.
6.How does Aetrix verify that SMBG6.5CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG6.5CA-M3/52 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 SMBG6.5CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG6.5CA-M3/52?
All SMBG6.5CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5CA-M3/52, 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 SMBG6.5CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBG6.5CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5CA-M3/52 Tags
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