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Vishay General Semiconductor - Diodes Division SMBG5.0CAHE3/52
- Part No.:
- SMBG5.0CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5.0CAHE3/52.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,246
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Product details
Overview
SMBG5.0CAHE3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features 5.0 V stand-off voltage (VWM), 6.4–7.25 V breakdown range (VBR), 600 W peak pulse power (10/1000 µs), <1 ns response time, and AEC-Q101 qualification - deployed on automotive sensor signal lines, CAN transceivers, and industrial I/O interfaces.
For engineers reviewing the SMBG5.0CAHE3/52 datasheet, SMBG5.0CAHE3/52 pinout, SMBG5.0CAHE3/52 application, or SMBG5.0CAHE3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping voltage (9.2 V at 65.2 A), RoHS-compliant AEC-Q101 qualification, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped surge protector using an avalanche junction structure, enabling symmetrical conduction in both polarities. Its glass-passivated chip junction ensures stable VBR tolerance (±5% typical) and low leakage (<800 µA at VWM), while the low incremental surge resistance supports effective energy diversion during ESD or lightning-induced transients.
The SMBG5.0CAHE3/52 is rated for repetitive 10/1000 µs pulses at 0.01% duty cycle and derates linearly above TA = 25 °C per Fig. 2. Junction temperature is limited to 150 °C, and it meets MSL Level 1 (260 °C peak reflow), making it suitable for high-reliability automotive PCB assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line operating margin. |
| VBR min/max | 6.4 V / 7.25 V - Breakdown occurs within this range at 10 mA test current; ensures predictable turn-on across production lots. |
| VC @ IPPM | 9.2 V at 65.2 A - Clamping voltage under 600 W surge; limits downstream IC stress to sub-10 V during worst-case transients. |
| PPPM | 600 W - Peak pulse power handling (10/1000 µs waveform); supports IEC 61000-4-5 Level 4 surge immunity compliance. |
| IPPM | 65.2 A - Corresponding peak pulse current at VC; determines minimum trace width and pad thermal design. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient on standard 0.2" × 0.2" copper pads; informs board-level thermal management. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H), matte tin-plated leads, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | One terminal of symmetrical avalanche junction; conducts during negative surges relative to cathode reference. |
| Cathode | Transient current entry (positive polarity) | Other terminal of symmetrical junction; conducts during positive surges; no band marking for bidirectional devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN, LIN) without polarity constraints. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, ADAS, and body electronics. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV (open-circuit)/2 kA (short-circuit) when properly laid out. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes voltage overshoot during clamping - critical for protecting 3.3 V or 5 V logic interfaces with tight VIH/VIL margins. |
| MSL Level 1 rating | Allows direct placement into lead-free reflow ovens at 260 °C peak without baking, reducing manufacturing complexity and cost. |
Applications
| Automotive Sensor Protection | CAN Bus Transient Suppression |
|---|---|
Use Scenario: Protecting analog output pins of pressure, temperature, and position sensors in engine control modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at sensor connector interface to shunt transients before reaching ADC input or signal conditioner. Use Value: Limits transient voltage to ≤9.2 V, preserving sensor accuracy and preventing latch-up in 5 V supply domain microcontrollers. | Use Scenario: Safeguarding CANH/CANL differential pair against ESD (IEC 61000-4-2 ±8 kV contact) and burst noise in vehicle networking gateways. IC Role / Device Role / Timing Role: Bidirectional clamping element mounted at CAN controller PHY interface, symmetrically suppressing both polarities of fast-rising transients. Use Value: Maintains CAN signal integrity by clamping common-mode surges below ISO 11898-2 receiver thresholds, avoiding bus lockup or bit errors. |
| Industrial PLC I/O Protection | Consumer USB Port ESD Guard |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input optocoupler front-end, placed before series current-limiting resistor. Use Value: Absorbs 600 W surge energy without degradation, ensuring >100,000 surge cycles per IEC 61000-4-5 compliance testing. | Use Scenario: Providing secondary ESD protection on USB 2.0 D+/D− lines in smart home hubs after primary TVS array. IC Role / Device Role / Timing Role: Low-capacitance (CJ ≈ 600 pF at 0 V) bidirectional clamp minimizing signal distortion on high-speed data lines. Use Value: Delivers <1 ns response with 9.2 V clamping to prevent USB PHY damage while maintaining full-speed (480 Mbps) eye diagram integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CA | Same VWM (5.0 V), lower PPPM (600 W → 400 W), higher VC (11.2 V vs. 9.2 V), SMB (DO-214AA) package. | Larger footprint (4.57 mm × 3.94 mm → 4.57 mm × 3.94 mm same L/W but taller profile), less thermal mass. | Select SMBJ5.0CA only if board space allows larger height or if lower surge rating suffices for Class B IEC 61000-4-5. |
| 1.5KE5.0CA | Higher PPPM (1500 W), axial-leaded DO-201AD package, VC = 9.6 V, no AEC-Q101 qualification. | Through-hole mounting only; unsuitable for automated SMT lines or vibration-prone automotive environments. | Choose 1.5KE5.0CA only for prototyping or legacy through-hole designs where RoHS and AEC-Q101 are not mandated. |
Compared with SMBJ5.0CA and 1.5KE5.0CA, SMBG5.0CAHE3/52 delivers superior clamping performance in a compact, AEC-Q101-qualified SMT package - essential for modern automotive and industrial edge nodes requiring zero-layout compromise and long-term supply stability.
Availability
SMBG5.0CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, CAN bus nodes, industrial PLC I/O modules, and consumer USB port protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMBG5.0CAHE3/52 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, precision, and automotive-grade qualification.
The SMBG series was engineered specifically for high-density, high-reliability transient suppression in automotive and industrial surface-mount applications - balancing low clamping voltage, robust surge handling, and MSL-1 process compatibility.
FAQ
What does the "HE3" suffix indicate in SMBG5.0CAHE3/52?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads meeting J-STD-002 solderability standards. It confirms the SMBG5.0CAHE3/52 is approved for automotive electronics use, including under-hood applications requiring extended temperature and reliability validation beyond industrial-grade parts.
Is SMBG5.0CAHE3/52 unidirectional or bidirectional?
SMBG5.0CAHE3/52 is a bidirectional transient voltage suppressor, as indicated by the "CA" suffix. It provides symmetrical clamping for both positive and negative voltage transients without polarity marking on the SMBG (DO-215AA) package - ideal for AC-coupled or floating signal paths like CAN, RS-485, or audio lines.
What is the maximum clamping voltage of SMBG5.0CAHE3/52 and at what current?
The SMBG5.0CAHE3/52 has a maximum clamping voltage (VC) of 9.2 V at a peak pulse current (IPPM) of 65.2 A, measured with a 10/1000 µs waveform. This value is guaranteed across temperature and production lot, ensuring consistent overvoltage limiting for protected ICs downstream.
Does SMBG5.0CAHE3/52 meet automotive qualification standards?
Yes, SMBG5.0CAHE3/52 is AEC-Q101 qualified, verified per stress tests including HTGB, HTRB, temperature cycling, and ESD (HBM ≥ 8 kV). This certification applies specifically to the HE3 variant and confirms suitability for automotive powertrain, chassis, and body electronics per ISO/TS 16949 requirements.
What is the thermal resistance of SMBG5.0CAHE3/52 and how does it affect layout?
The SMBG5.0CAHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C during repeated surges, PCB layout must provide adequate copper area and avoid thermal bottlenecks - especially critical in sealed automotive enclosures.
SMBG5.0CAHE3/52 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- 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)
SMBG5.0CAHE3/52 FAQ
1.How can I place an order for SMBG5.0CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5.0CAHE3/52 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 SMBG5.0CAHE3/52 reliable?
The price and inventory of SMBG5.0CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5.0CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG5.0CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5.0CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5.0CAHE3/52?
SMBG5.0CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5.0CAHE3/52 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 SMBG5.0CAHE3/52?
For technical support, including SMBG5.0CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5.0CAHE3/52 requirements.
6.How does Aetrix verify that SMBG5.0CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG5.0CAHE3/52 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 SMBG5.0CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG5.0CAHE3/52?
All SMBG5.0CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5.0CAHE3/52, 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 SMBG5.0CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBG5.0CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5.0CAHE3/52 Tags
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