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Vishay General Semiconductor - Diodes Division SMBG150CA-M3/52
- Part No.:
- SMBG150CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG150CA-M3/52.pdf
- Description:
- TVS DIODE 150VWM 243VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,229
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Product details
Overview
SMBG150CA-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 150 V stand-off voltage (VWM), 243 V maximum clamping voltage (VC) at 2.5 A peak pulse current, 600 W peak pulse power rating (10/1000 μs), and AEC-Q101 qualification for automotive-grade reliability. It protects MOSFETs, ICs, and sensor signal lines against inductive switching surges.
For engineers reviewing the SMBG150CA-M3/52 datasheet, SMBG150CA-M3/52 pinout, SMBG150CA-M3/52 application, or SMBG150CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, 150 V reverse stand-off rating, 243 V clamping performance at rated surge current, AEC-Q101 qualification status, and halogen-free RoHS-compliant construction per M3 suffix.
Technical Context
This device operates as a voltage-clamping protector with symmetrical breakdown behavior in both polarities due to its bidirectional construction. Its glass-passivated junction ensures stable avalanche characteristics and low leakage (<1.0 μA at VWM), while the low incremental surge resistance enables consistent clamping under repetitive transients.
The SMBG150CA-M3/52 delivers 600 W peak pulse power handling with a 10/1000 μs waveform at TA = 25 °C, derating linearly above 25 °C per the published thermal curve. Its junction-to-lead thermal resistance (RθJL = 20 °C/W) supports reliable energy dissipation during short-duration surges when mounted on recommended 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V–48 V automotive and industrial bus protection. |
| VBR (min/max) | 167 V / 185 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold across production lots. |
| VC @ IPPM | 243 V - Clamped voltage at 2.5 A peak pulse current; limits downstream voltage stress during ESD or load-dump events. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; supports robust protection against ISO 7637-2 Pulse 1/2a/2b and IEC 61000-4-5 surges. |
| ID @ VWM | <1.0 μA - Reverse leakage at stand-off voltage; minimizes quiescent power loss and avoids false triggering in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments and industrial enclosures without derating. |
| Qualification | AEC-Q101 qualified - Validated for automotive electronic systems per stress test requirements including HTGB, HTRB, and temperature cycling. |
| Package | SMBG (DO-215AA) - Surface-mount gull-wing package with 5.97 mm × 4.06 mm footprint; compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
SMBG150CA-M3/52 uses the SMBG (DO-215AA) surface-mount package: gull-wing leads, no polarity marking (bidirectional), matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102, MSL Level 1 rated (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts surge current during negative-going transients; forms symmetrical clamping path with cathode. |
| Cathode | Transient current entry (positive polarity) | Accepts surge current during positive-going transients; forms symmetrical clamping path with anode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns-e.g., CAN bus, RS-485, or sensor differential pairs. |
| 600 W peak pulse power | Withstands high-energy transients such as ISO 7637-2 Load Dump (Pulse 5a) up to 120 V peak when used with appropriate series impedance. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body electronics, and ADAS modules where field failure risk must be minimized. |
| Halogen-free & RoHS compliant (M3) | Meets environmental compliance requirements for global OEM programs and industrial equipment sold in EU, China, and Japan. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage exposure to protected ICs-critical for 3.3 V or 5 V logic interfaces sharing same PCB net with higher-voltage domains. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and jump-start surges per ISO 7637-2. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed upstream of DC-DC converter input or LDO regulator. Use Value: Limits transient voltage to ≤243 V, preventing damage to downstream PMICs and microcontrollers rated for 36 V absolute maximum input. | Use Scenario: Safeguarding analog output pins of pressure or temperature sensors exposed to cable-induced ESD and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional shunt protector on 0–5 V or 4–20 mA signal lines interfacing with PLCs or data acquisition systems. Use Value: Maintains signal integrity by clamping transients below 243 V while adding <1.0 μA leakage-no impact on measurement accuracy or loop calibration. |
| Automotive CAN FD Bus Protection | Telecom DC Power Feed Protection |
Use Scenario: Shielding high-speed CAN FD transceivers (e.g., TCAN1042) from ESD and board-level surges in vehicle networking. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed across CANH–CANL differential pair near connector. Use Value: Provides sub-100 ps response with 243 V clamping, preserving signal edge integrity and meeting ISO 11898-2 EMC immunity targets. | Use Scenario: Protecting -48 V telecom power feeds from lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Primary clamping device on DC input rail upstream of hot-swap controller and backup battery circuitry. Use Value: Handles 600 W surge energy without degradation, enabling compliance with GR-1089-CORE Level 3 (10/1000 μs, 1 kA) when combined with series impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG150CA-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3 suffix); no AEC-Q101 qualification. | Approved for industrial-grade designs only; not suitable for automotive Tier-1 BOMs requiring AEC-Q101. | Select when halogen-free content is not mandated and automotive qualification is unnecessary. |
| SMBJ150CA | Same VWM and VC, but lower PPPM = 600 W (same rating) yet larger SMB (DO-214AA) package; RθJA = 110 °C/W vs. 100 °C/W. | Compatible footprint not guaranteed; requires PCB redesign due to different pad layout and lead pitch. | Choose only if existing design uses SMB package and thermal margin allows higher junction temp rise. |
Compared with SMBG150CA-E3/52 and SMBJ150CA, the SMBG150CA-M3/52 uniquely combines halogen-free construction, AEC-Q101 qualification, and SMBG's optimized thermal performance-making it the preferred choice for next-generation automotive and industrial designs requiring full regulatory alignment and long-term supply stability.
Availability
SMBG150CA-M3/52 is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, automotive CAN FD bus protection, and telecom DC power feed protection requiring stable component supply and long-term lifecycle support.
Supply support for SMBG150CA-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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was developed to deliver high-power transient suppression in compact surface-mount packages for automotive and industrial applications demanding AEC-Q101 qualification, low profile, and repeatable clamping performance-exemplified by the SMBG150CA-M3/52.
FAQ
What is the clamping voltage of SMBG150CA-M3/52 at its rated peak pulse current?
The SMBG150CA-M3/52 has a maximum clamping voltage (VC) of 243 V at its rated peak pulse current of 2.5 A (10/1000 μs waveform). This value is measured per ANSI/IEEE C62.35 standards and confirmed in Vishay's datasheet revision 09-Jan-2024, ensuring predictable overvoltage limiting for protected circuits. The SMBG150CA-M3/52 maintains this clamping performance across its qualified temperature range.
Is SMBG150CA-M3/52 suitable for automotive applications?
Yes, SMBG150CA-M3/52 is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and ADAS modules. Its halogen-free (M3) construction, 150 °C maximum junction temperature, and validated performance under temperature cycling and humidity testing meet Tier-1 OEM requirements. The SMBG150CA-M3/52 is listed in Vishay's AEC-Q101 qualified product portfolio.
What does the "CA" suffix indicate in SMBG150CA-M3/52?
The "CA" suffix in SMBG150CA-M3/52 denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMBG150A), the SMBG150CA-M3/52 has no polarity marking and functions identically in either orientation-ideal for protecting AC-coupled or floating signal paths such as CAN, RS-485, or differential sensor outputs.
How does SMBG150CA-M3/52 differ from SMBG150A-M3/52?
SMBG150CA-M3/52 is bidirectional with symmetrical breakdown and clamping in both polarities, while SMBG150A-M3/52 is unidirectional and conducts only in reverse bias (cathode-to-anode). The SMBG150CA-M3/52 has no band marking and supports AC transient suppression; SMBG150A-M3/52 requires correct polarity placement and includes a cathode band. Both share identical VWM, VBR, and PPPM, but their circuit integration differs fundamentally.
What is the thermal resistance of SMBG150CA-M3/52, and how does it affect layout?
The SMBG150CA-M3/52 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 100 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. To maintain reliability during repetitive surges, PCB layout must follow Vishay's recommended pad dimensions and avoid excessive trace length or narrow copper pours. The SMBG150CA-M3/52's thermal performance directly impacts its ability to sustain multiple 600 W pulses without exceeding TJ = 150 °C.
SMBG150CA-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):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- 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)
SMBG150CA-M3/52 FAQ
1.How can I place an order for SMBG150CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG150CA-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 SMBG150CA-M3/52 reliable?
The price and inventory of SMBG150CA-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 SMBG150CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG150CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG150CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG150CA-M3/52?
SMBG150CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG150CA-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 SMBG150CA-M3/52?
For technical support, including SMBG150CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG150CA-M3/52 requirements.
6.How does Aetrix verify that SMBG150CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG150CA-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 SMBG150CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG150CA-M3/52?
All SMBG150CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG150CA-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 SMBG150CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBG150CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG150CA-M3/52 Tags
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