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Vishay General Semiconductor - Diodes Division SMBG6.5CA-E3/52
- Part No.:
- SMBG6.5CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5CA-E3/52.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG6.5CA-E3/52 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 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), 53.6 A peak pulse current (IPPM), and 11.2 V maximum clamping voltage (VC) - deployed in automotive sensor protection and industrial I/O interfaces.
For engineers reviewing the SMBG6.5CA-E3/52 datasheet, SMBG6.5CA-E3/52 pinout, SMBG6.5CA-E3/52 application, or SMBG6.5CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 11.2 V clamping at 53.6 A, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping positive and negative transients without polarity dependence. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the low incremental surge resistance enables rapid energy dissipation during ESD or lightning-induced surges.
The SMBG6.5CA-E3/52 is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). It meets UL 497B recognition (QVGQ2) and complies with JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse working voltage before clamping begins |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - guaranteed avalanche onset range under standardized test conditions |
| VC @ IPPM | 11.2 V at 53.6 A - clamped voltage during 600 W transient, defining protected circuit's worst-case overvoltage |
| IPPM | 53.6 A - peak surge current it safely diverts using 10/1000 μs waveform |
| PPPM | 600 W - transient power handling capacity, derated above 25 °C per Fig. 2 |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| MSL Level | Level 1 (J-STD-020) - no floor life limitation; safe for reflow up to 260 °C peak |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, gull-wing leadform, matte tin-plated terminals solderable per J-STD-002 and JESD22-B102. No polarity marking - bidirectional symmetry eliminates cathode/anode distinction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient conduction path | Either terminal serves as input/output; clamps both polarities identically - no orientation required during placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails |
| 600 W peak pulse power (10/1000 μs) | Robust suppression of ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surge events |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream ICs like CAN transceivers or microcontrollers |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom and industrial signal line protectors without additional certification |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow without baking or special handling |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and ground, clamping ±11.2 V spikes within nanoseconds. Use Value: Prevents latch-up or permanent damage to 5 V rail-tied op-amps and ADC inputs while maintaining signal integrity below 6.5 V nominal. | Use Scenario: Shielding RS-485 transceiver data lines in factory automation PLCs from EFT and surge coupling via long cable runs. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF at 0 V) bidirectional clamp across differential pair, referenced to local ground. Use Value: Limits common-mode overvoltage to <11.2 V without distorting 10 Mbps differential signaling due to symmetrical clamping behavior. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
Use Scenario: Safeguarding AC-DC adapter primary-side control ICs against lightning-induced surges entering via mains input. IC Role / Device Role / Timing Role: Parallel-connected TVS across bridge rectifier output, absorbing repetitive 600 W transients with 0.01% duty cycle. Use Value: Extends reliability of 12 V auxiliary rails by clamping to 11.2 V before 30 V-rated MOSFET gate oxide breakdown occurs. | Use Scenario: Front-end protection for POTS line interface ICs in VoIP gateways exposed to tip-ring surges per GR-1089-CORE. IC Role / Device Role / Timing Role: Bidirectional clamp between TIP and RING lines, referenced to isolated ground plane. Use Value: Meets UL 497B QVGQ2 requirements and withstands 10× 10/1000 μs surges without degradation, ensuring 10-year field life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA | Same VWM, VBR, and VC; lower PPPM (600 W vs. SMBJ's 600 W - identical rating), but SMBJ uses DO-214AA (SMB) package with larger pad area | SMBJ6.5CA has higher thermal mass and lower RθJA (85 °C/W), better for high-repetition surges | Select SMBJ6.5CA when board layout allows larger footprint and thermal performance is prioritized over space-constrained designs |
| 1.5KE6.8CA | Higher PPPM (1500 W), axial DO-15 package, VC = 11.5 V - slightly looser clamping than SMBG6.5CA's 11.2 V | Through-hole mounting only; unsuitable for automated SMT lines or dense PCBs | Choose 1.5KE6.8CA only for prototyping, repair, or legacy through-hole systems where rework tolerance outweighs production efficiency |
Compared with SMBG6.5CA-E3/52, SMBJ6.5CA offers identical electrical specs in a thermally superior but larger package, while 1.5KE6.8CA trades SMT compatibility and tighter clamping for higher single-pulse robustness and through-hole assembly - making SMBG6.5CA-E3/52 optimal for space-constrained, AEC-Q101-compliant automotive SMT designs.
Availability
SMBG6.5CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line card surge suppression requiring stable component supply, full traceability, and AEC-Q101 compliance.
Supply support for SMBG6.5CA-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The SMBG series was engineered specifically for high-reliability surface-mount transient suppression in automotive and industrial environments, balancing low clamping voltage, AEC-Q101 validation, and MSL Level 1 process compatibility.
FAQ
What is the clamping voltage of SMBG6.5CA-E3/52 at its rated peak pulse current?
The SMBG6.5CA-E3/52 exhibits a maximum clamping voltage (VC) of 11.2 V when subjected to its rated peak pulse current of 53.6 A (10/1000 μs waveform). This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during transient events - critical for ensuring compatibility with 5 V or 3.3 V logic interfaces downstream of the SMBG6.5CA-E3/52.
Is SMBG6.5CA-E3/52 suitable for automotive applications?
Yes, SMBG6.5CA-E3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments with junction temperatures up to +150 °C. Its bidirectional clamping, UL 497B recognition (QVGQ2), and MSL Level 1 reflow compatibility make SMBG6.5CA-E3/52 appropriate for protecting LIN, CAN, and sensor signal lines in ECU modules per ISO 16750-2 and ISO 7637-2 requirements.
Does SMBG6.5CA-E3/52 have polarity markings on the package?
No, SMBG6.5CA-E3/52 has no polarity markings because it is a bidirectional TVS diode. The SMBG (DO-215AA) package is symmetric - both terminals function identically regardless of orientation. This eliminates placement errors during automated SMT assembly and simplifies PCB layout, unlike unidirectional variants (e.g., SMBG6.5A) which feature a cathode band.
What is the maximum reverse leakage current for SMBG6.5CA-E3/52 at its stand-off voltage?
At its 6.5 V stand-off voltage (VWM), the SMBG6.5CA-E3/52 guarantees a maximum reverse leakage current (ID) of 1.0 μA at 25 °C. This low leakage ensures minimal power loss in always-on circuits and prevents false triggering in high-impedance sensor bias networks - a key advantage over higher-leakage alternatives in battery-powered automotive modules.
How does the SMBG6.5CA-E3/52 package compare to SMBJ6.5CA in terms of board space and thermal performance?
The SMBG6.5CA-E3/52 uses the smaller DO-215AA (SMBG) package (0.235" × 0.130"), saving ~15% board area versus the DO-214AA (SMB) footprint of SMBJ6.5CA (0.265" × 0.150"). However, SMBJ6.5CA achieves lower junction-to-ambient thermal resistance (85 °C/W vs. 100 °C/W for SMBG6.5CA-E3/52), making it preferable for high-duty-cycle surge environments - while SMBG6.5CA-E3/52 remains optimal for space-constrained, AEC-Q101-compliant automotive SMT designs.
SMBG6.5CA-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):
- 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:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG6.5CA-E3/52 FAQ
1.How can I place an order for SMBG6.5CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5CA-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 SMBG6.5CA-E3/52 reliable?
The price and inventory of SMBG6.5CA-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 SMBG6.5CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG6.5CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5CA-E3/52?
SMBG6.5CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5CA-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 SMBG6.5CA-E3/52?
For technical support, including SMBG6.5CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5CA-E3/52 requirements.
6.How does Aetrix verify that SMBG6.5CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG6.5CA-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 SMBG6.5CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG6.5CA-E3/52?
All SMBG6.5CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5CA-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 SMBG6.5CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBG6.5CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5CA-E3/52 Tags
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