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Vishay General Semiconductor - Diodes Division SMBG8.0CAHE3/52
- Part No.:
- SMBG8.0CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG8.0CAHE3/52.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,939
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Product details
Overview
SMBG8.0CAHE3/52 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 8.0 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), 13.6 V maximum clamping voltage at rated surge current, and AEC-Q101 qualification for automotive-grade reliability in ECU and sensor protection applications.
For engineers reviewing the SMBG8.0CAHE3/52 datasheet, SMBG8.0CAHE3/52 pinout, SMBG8.0CAHE3/52 application, or SMBG8.0CAHE3/52 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal resistance (RθJA = 100 °C/W), RoHS-compliant HE3 suffix marking, and AEC-Q101 qualification status - all critical for automotive electronics surge protection design and component selection.
Technical Context
This bidirectional TVS operates symmetrically in both polarities with identical breakdown (VBR min/max = 8.89–9.83 V at IT = 1.0 mA) and clamping characteristics. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time to sub-nanosecond transients.
Designed for surface-mount automated placement, it uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets MSL Level 1 (260 °C peak reflow). The SMBG package provides 100 °C/W junction-to-ambient thermal resistance under standard 5.0 mm × 5.0 mm copper pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line operating margin. |
| VBR (min/max) | 8.89 V / 9.83 V at IT = 1.0 mA - Confirmed bidirectional breakdown range; ensures consistent turn-on across polarity. |
| VC @ IPPM | 13.6 V at 44.1 A - Clamping voltage during 600 W 10/1000 μs surge; limits downstream IC stress to safe levels. |
| PPPM | 600 W - Peak pulse power handling per JEDEC standard; supports repetitive 0.01% duty cycle surges. |
| IPPM | 44.1 A - Peak pulse current capability; derived from VC and PPPM, validates surge robustness. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| RθJA | 100 °C/W - Thermal resistance with recommended pad layout; informs board-level thermal design for sustained surge duty. |
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); molded compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | One terminal of symmetrical junction; accepts surge current in either direction without damage. |
| Cathode | Transient current entry (positive polarity) | Second terminal of symmetrical junction; completes bidirectional conduction path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use including engine control units and ADAS sensor interfaces. |
| 600 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 surge waveforms without degradation. |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR = ~4.8 V), minimizing voltage overshoot during fast transients. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without preconditioning or special handling. |
| RoHS-compliant HE3 suffix | Industrial-grade, AEC-Q101 qualified variant with matte tin terminations and JESD 201 Class 2 whisker resistance. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protection of microcontroller I/O and LIN bus pins against load dump and inductive switching spikes in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping device placed directly at connector entry point to shunt surge energy before reaching sensitive logic. Use Value: Limits transient voltage to ≤13.6 V during 44.1 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V MCUs. | Use Scenario: Guarding differential CANH/CANL lines against ESD and coupled noise in factory automation PLCs. IC Role / Device Role / Timing Role: Symmetrical TVS pair (one per line) providing common-mode and differential-mode transient suppression. Use Value: Maintains signal integrity by clamping transients within CAN physical layer tolerance (±40 V common-mode), avoiding bus lockup. |
| Automotive Occupant Detection Sensor | Consumer Smart Rearview Mirror |
Use Scenario: Safeguarding capacitive or piezoresistive seat sensor analog front-end from ignition noise and battery disconnect transients. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 μA) bidirectional clamp ensuring minimal DC offset impact on precision ADC inputs. Use Value: Preserves measurement accuracy while enabling <1 ns response to fast-rising airbag deployment circuit noise. | Use Scenario: Protecting USB-C and display data lines from ESD events during user interaction and vehicle charging. IC Role / Device Role / Timing Role: Compact SMBG footprint allows placement adjacent to connectors without PCB real estate penalty. Use Value: Delivers 600 W surge immunity in space-constrained mirror housing where thermal dissipation is limited. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA-E3/52 | Same VWM/VC, but lower PPPM = 600 W (same rating), different package (SMB vs SMBG); RθJA = 110 °C/W. | Less thermally efficient; requires larger copper area for same surge duty cycle. | Select when legacy SMB footprint compatibility is required over AEC-Q101 qualification. |
| 1.5SMC8.0CA | Higher PPPM = 1500 W, DO-214AB package, VC = 13.4 V; not AEC-Q101 qualified. | Over-specified power handling increases cost and board area; lacks automotive qualification evidence. | Choose only for non-automotive industrial applications needing higher single-pulse margin. |
Compared with SMBJ8.0CA-E3/52 and 1.5SMC8.0CA, SMBG8.0CAHE3/52 uniquely combines AEC-Q101 qualification, SMBG's optimized thermal performance (RθJA = 100 °C/W), and HE3's whisker-resistant terminations - making it the preferred choice for new automotive designs requiring long-term reliability validation.
Availability
SMBG8.0CAHE3/52 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial CAN bus hardening, and consumer smart mirror surge suppression requiring stable component supply across production lifecycles.
Supply support for SMBG8.0CAHE3/52 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 high-reliability and automotive-grade solutions.
The SMBG series was developed specifically for AEC-Q101-compliant transient suppression in space-constrained automotive and industrial modules, balancing low-profile packaging, precise clamping, and validated surge endurance.
FAQ
What does the "CA" suffix indicate in SMBG8.0CAHE3/52?
The "CA" suffix denotes a bidirectional configuration - meaning SMBG8.0CAHE3/52 provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMBG8.0A), it has no cathode marking and exhibits identical VBR and VC characteristics in either polarity, making it ideal for AC-coupled or differential signal lines such as CAN or LIN buses.
Is SMBG8.0CAHE3/52 suitable for ISO 7637-2 compliance testing?
Yes, SMBG8.0CAHE3/52 is engineered to meet ISO 7637-2 requirements for automotive transient immunity. With its 600 W peak pulse power rating (10/1000 μs), 13.6 V clamping voltage at 44.1 A, and AEC-Q101 qualification, SMBG8.0CAHE3/52 reliably suppresses Pulse 1 (inductive load dump), Pulse 2a (sudden load disconnection), and Pulse 3a/b (capacitive coupling) without degradation when mounted per recommended pad layout.
How does the HE3 suffix differ from E3 or M3 in SMBG8.0CAHE3/52?
The HE3 suffix in SMBG8.0CAHE3/52 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - distinguishing it from E3 (RoHS, industrial grade only) and M3 (halogen-free + RoHS, industrial grade). This makes SMBG8.0CAHE3/52 the only variant approved for automotive under-hood applications where long-term reliability under thermal cycling and vibration is mandatory.
What is the maximum operating temperature for SMBG8.0CAHE3/52?
SMBG8.0CAHE3/52 has a specified operating junction temperature range of −55 °C to +150 °C. Its thermal resistance (RθJA = 100 °C/W) is measured with 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. At ambient temperatures up to +105 °C and full 600 W surge duty, proper PCB layout ensures SMBG8.0CAHE3/52 remains within safe thermal limits for automotive ECU deployment.
Can SMBG8.0CAHE3/52 replace SMBJ8.0CA in an existing design?
SMBG8.0CAHE3/52 is not a direct drop-in replacement for SMBJ8.0CA due to differing package outlines (SMBG/DO-215AA vs SMB/DO-214AA) and thermal characteristics (RθJA = 100 °C/W vs 110 °C/W). While both share identical VWM, VBR, and VC, the SMBG's slightly larger body and optimized pad layout require PCB footprint revision. However, SMBG8.0CAHE3/52 offers superior AEC-Q101 validation and thermal performance for new automotive designs.
SMBG8.0CAHE3/52 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 44.1A
- 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)
SMBG8.0CAHE3/52 FAQ
1.How can I place an order for SMBG8.0CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG8.0CAHE3/52 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 SMBG8.0CAHE3/52 reliable?
The price and inventory of SMBG8.0CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG8.0CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG8.0CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG8.0CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG8.0CAHE3/52?
SMBG8.0CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG8.0CAHE3/52 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 SMBG8.0CAHE3/52?
For technical support, including SMBG8.0CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG8.0CAHE3/52 requirements.
6.How does Aetrix verify that SMBG8.0CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG8.0CAHE3/52 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 SMBG8.0CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG8.0CAHE3/52?
All SMBG8.0CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG8.0CAHE3/52, 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 SMBG8.0CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBG8.0CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG8.0CAHE3/52 Tags
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