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Vishay General Semiconductor - Diodes Division SMBG6.5CAHE3/52
- Part No.:
- SMBG6.5CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5CAHE3/52.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,952
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Product details
Overview
SMBG6.5CAHE3/52 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 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 interfaces and industrial I/O protection.
For engineers reviewing the SMBG6.5CAHE3/52 datasheet, SMBG6.5CAHE3/52 pinout, SMBG6.5CAHE3/52 application, or SMBG6.5CAHE3/52 equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, 150 °C junction temperature rating, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1 μA leakage at 6.5 V), but triggers into low-impedance conduction when transient voltage exceeds its symmetric breakdown threshold in either polarity. Its glass-passivated junction ensures stable VBR tolerance and repeatable clamping performance across temperature.
The SMBG6.5CAHE3/52 is rated for 600 W peak pulse power per 10/1000 μs waveform at 0.01% duty cycle, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling robust transient energy absorption without thermal runaway in properly laid-out PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 5 V logic/sensor rails. |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - Confirmed symmetric breakdown in both directions; ensures consistent turn-on regardless of transient polarity. |
| VC @ IPPM | 11.2 V at 53.6 A - Clamping voltage limits downstream IC stress during worst-case surge; stays below typical 12 V rail absolute max ratings. |
| PPPM | 600 W - Peak surge power handling capability with 10/1000 μs waveform; sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3. |
| TJ max | +150 °C - Maximum junction temperature rating supports under-hood automotive use and high-temperature industrial environments. |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking; matte tin-plated leads, RoHS-compliant, MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Conducts surge current toward ground when voltage exceeds +VBR; forms symmetrical path with cathode. |
| Cathode | Transient current entry (negative half-cycle) | Conducts surge current toward ground when voltage exceeds –VBR; identical electrical role to anode in bidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC in both polarities enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 600 W surge rating | Handles repetitive 10/1000 μs transients up to 53.6 A without degradation - suitable for CAN bus, LIN, and sensor analog front-ends. |
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including HTGB, TCT, and uHAST - supports Tier-1 production deployment. |
| Low-profile SMBG package | 0.235" × 0.130" footprint with 0.030" height enables dense layout in space-constrained ECUs and ADAS modules. |
Applications
| Automotive Sensor Protection | Industrial Digital I/O |
|---|---|
Use Scenario: Protecting ABS wheel speed sensor outputs from load dump and inductive switching transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Shunt TVS placed between signal line and chassis ground, clamping surges within nanoseconds to prevent damage to MCU input buffers. Use Value: Maintains signal integrity by limiting transient overvoltage to ≤11.2 V while surviving repeated 600 W pulses - critical for ASIL-B functional safety compliance. | Use Scenario: Safeguarding PLC digital input channels against field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Bidirectional clamp on 24 V DC input lines, absorbing fast-rising transients from relay coil de-energization or motor drive noise. Use Value: Eliminates need for separate unidirectional devices per line; reduces BOM count and PCB area while meeting IEC 61000-4-4/5 immunity requirements. |
| Automotive CAN FD Bus | Consumer Appliance Control Board |
Use Scenario: Protecting CAN_H/CAN_L differential pair in automotive infotainment head units exposed to battery disconnect spikes. IC Role / Device Role / Timing Role: Low-capacitance (typ. 300 pF at 0 V) bidirectional TVS placed across differential lines to suppress common-mode transients without distorting data eye. Use Value: Enables reliable 5 Mbps CAN FD communication by clamping surges to <12 V while adding <0.5 ns propagation delay - preserves signal timing margins. | Use Scenario: Shielding microcontroller GPIOs on washing machine control boards from ESD events during user interface interaction. IC Role / Device Role / Timing Role: Localized ESD suppression at button/keypad traces, diverting >8 kV HBM discharges away from sensitive CMOS inputs. Use Value: Achieves IEC 61000-4-2 Level 4 (8 kV contact / 15 kV air) immunity without external RC filters - simplifies layout and lowers system cost. |
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) and higher IPPM = 62.2 A; SMB (DO-214AA) package, slightly larger footprint (0.295" × 0.175"). | Compatible with same surge standards but requires larger pad layout; not AEC-Q101 qualified. | Select SMBJ6.5CA only if AEC-Q101 is not required and board space allows larger package. |
| SMCJ6.5CA | Same electrical specs but in SMC (DO-214AB) package; PPPM = 1500 W, IPPM = 132 A; significantly larger body (0.350" × 0.265") and higher thermal mass. | Over-specified for most 600 W applications; used where higher single-pulse energy or improved thermal dissipation is needed. | Choose SMCJ6.5CA only when system-level testing reveals insufficient margin with 600 W rating or when derating for elevated ambient temperatures is required. |
Compared with SMBJ6.5CA and SMCJ6.5CA, the SMBG6.5CAHE3/52 delivers identical clamping performance in a smaller, AEC-Q101-qualified package optimized for automotive and space-constrained industrial designs - making it the preferred choice where qualification and footprint are decisive.
Availability
SMBG6.5CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, CAN FD bus protection, and consumer appliance control boards requiring stable component supply and long-term lifecycle support.
Supply support for SMBG6.5CAHE3/52 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-reliability surface-mount transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, low-profile packaging, and precise bidirectional clamping performance.
FAQ
What does the "CA" suffix indicate in SMBG6.5CAHE3/52?
The "CA" suffix denotes a bidirectional configuration - meaning the SMBG6.5CAHE3/52 provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMBG6.5A), it has no polarity marking and functions identically in either direction, making it ideal for AC-coupled or floating signal lines such as CAN bus or differential sensor outputs.
Is SMBG6.5CAHE3/52 suitable for automotive applications?
Yes, SMBG6.5CAHE3/52 is AEC-Q101 qualified and explicitly designed for automotive use. Its construction includes glass-passivated junctions, MSL Level 1 moisture sensitivity, and validation across temperature cycling, high-temperature reverse bias, and ESD tests. It is deployed in engine control units, ADAS sensors, and infotainment systems where reliability under harsh conditions is mandatory.
What is the maximum clamping voltage of SMBG6.5CAHE3/52 under surge conditions?
The SMBG6.5CAHE3/52 has a maximum clamping voltage (VC) of 11.2 V at its rated peak pulse current of 53.6 A (10/1000 μs waveform). This value is guaranteed across temperature and ensures protected circuits - such as 12 V automotive MCUs or 5 V logic interfaces - remain within safe operating voltage limits during transient events.
How does the SMBG (DO-215AA) package compare to SMB (DO-214AA) in size and thermal performance?
The SMBG (DO-215AA) package measures 0.235" × 0.130" - approximately 20% smaller than SMB (DO-214AA) - while maintaining comparable thermal resistance: RθJA = 100 °C/W and RθJL = 20 °C/W. Its compact size supports high-density layouts, and its leadframe design enables efficient heat transfer to PCB copper pads, especially when mounted on 5.0 mm × 5.0 mm thermal pads as specified.
Does SMBG6.5CAHE3/52 require orientation during PCB placement?
No, SMBG6.5CAHE3/52 does not require specific orientation because it is a bidirectional device with no polarity marking. The SMBG6.5CAHE3/52 functions identically regardless of how it is placed on the board - unlike unidirectional TVS diodes that must align the cathode band with the protected node's reference potential. This simplifies automated assembly and eliminates orientation-related assembly errors.
SMBG6.5CAHE3/52 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG6.5CAHE3/52 FAQ
1.How can I place an order for SMBG6.5CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5CAHE3/52 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 SMBG6.5CAHE3/52 reliable?
The price and inventory of SMBG6.5CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG6.5CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG6.5CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5CAHE3/52?
SMBG6.5CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5CAHE3/52 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 SMBG6.5CAHE3/52?
For technical support, including SMBG6.5CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5CAHE3/52 requirements.
6.How does Aetrix verify that SMBG6.5CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG6.5CAHE3/52 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 SMBG6.5CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG6.5CAHE3/52?
All SMBG6.5CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5CAHE3/52, 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 SMBG6.5CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBG6.5CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5CAHE3/52 Tags
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