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Vishay General Semiconductor - Diodes Division SMBG150CAHE3/52
- Part No.:
- SMBG150CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG150CAHE3/52.pdf
- Description:
- TVS DIODE 150VWM 243VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,761
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Product details
Overview
SMBG150CAHE3/52 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 a 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), clamping voltage of 243 V at 2.5 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG150CAHE3/52 datasheet, SMBG150CAHE3/52 pinout, SMBG150CAHE3/52 application, or SMBG150CAHE3/52 equivalent, this device is selected for high-energy surge suppression in automotive power lines, industrial sensor interfaces, and telecom DC supply rails where bidirectional clamping, low leakage (<1.0 μA at VWM), and MSL Level 1 solderability are critical.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the low incremental surge resistance enables effective clamping under high-current transients such as ISO 7637-2 pulse 1/2a/5a or IEC 61000-4-5 surges.
The SMBG150CAHE3/52 is rated for continuous operation from −55 °C to +150 °C junction temperature and exhibits typical thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. Its unmarked terminals reflect bidirectional polarity, distinguishing it from unidirectional variants marked with cathode band.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 12 V/24 V/48 V systems. |
| VBR (min/max) | 167 V / 185 V at 1 mA - Ensures consistent breakdown onset across production lots; guarantees clamping activation above system nominal voltage. |
| VC @ IPPM | 243 V at 2.5 A - Peak clamped voltage during 10/1000 μs surge; limits stress on downstream MOSFETs or ICs. |
| PPPM | 600 W - Sustains high-energy transients without failure; validated per JEDEC JESD22-A114 (ESD) and IEC 61000-4-5 (surge). |
| ID @ VWM | <1.0 μA - Negligible leakage current preserves battery life and signal integrity in always-on circuits. |
| TJ max | +150 °C - Enables deployment in under-hood automotive environments and high-temperature industrial enclosures. |
| MSL Level | Level 1 (J-STD-020) - Supports lead-free reflow up to 260 °C peak without popcorn or delamination. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronic components including HTGB, HTRB, and TCT. |
Pinout & Package
Package: SMBG (DO-215AA) - Surface-mount, low-profile (max height 1.96 mm), RoHS-compliant, matte tin-plated leads, UL 94 V-0 molding compound. Terminals are unmarked due to bidirectional symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Surge current path (reversible) | No polarity marking required; conducts equally in either direction during overvoltage events. |
| Case (body) | Thermal and mechanical interface | Exposed metal frame provides primary heat dissipation path to PCB copper; requires minimum 5.0 mm × 5.0 mm pad per terminal. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Withstands automotive load dump and inductive switching surges without degradation or parametric shift. |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage across temperature and humidity stress conditions. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance. |
| Low profile SMBG package | Enables compact PCB layouts in space-constrained modules such as ECU power supplies and CAN/LIN bus protectors. |
| MSL Level 1 rating | Eliminates pre-bake requirement and supports high-throughput automated assembly with standard lead-free reflow profiles. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power inputs in engine control units against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed upstream of DC-DC converters and microcontrollers. Use Value: Limits voltage to ≤243 V during 100 A/10 ms surge, preventing latch-up or gate oxide damage in downstream FETs and regulators. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) shunt protector on differential signal pairs or single-ended sensor lines. Use Value: Clamps sub-100 ns ESD pulses to safe levels while adding <0.5 pF parasitic capacitance-preserving signal bandwidth up to 10 MHz. |
| Telecom DC Power Rail Protection | Motor Drive Gate Driver Protection |
Use Scenario: Safeguarding -48 V or +24 V telecom power distribution boards from lightning-induced surges (IEC 61000-4-5 Level 4). IC Role / Device Role / Timing Role: Primary surge arrestor on input bulk capacitor rail, coordinated with upstream fuses and secondary TVS stages. Use Value: Absorbs 600 W peak energy without thermal runaway, maintaining VWM = 150 V margin above nominal -48 V system voltage. | Use Scenario: Protecting high-side/low-side gate drivers in BLDC motor inverters from shoot-through-inducing voltage spikes during switching transitions. IC Role / Device Role / Timing Role: Fast-clamping TVS placed between gate and source terminals of power MOSFETs/IGBTs. Use Value: Responds in <1 ns to clamp gate-source voltage to ≤243 V, preventing unintended turn-on and destructive cross-conduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | Same VWM/VBR/PPPM, but SMB (DO-214AA) package; 1.5× larger footprint and higher RθJA (120 °C/W). | Less suitable for ultra-dense automotive modules; acceptable for industrial PCBs with larger thermal pads. | Select SMBJ150CA only if existing layout uses SMB footprint and thermal derating allows. |
| SMCJ150CA | Same electrical specs, but SMC (DO-214AB) package; 2.5× higher PPPM rating (1500 W), larger size, and higher mounting mass. | Better for high-reliability industrial UPS or solar charge controllers where mechanical robustness outweighs board space. | Choose SMCJ150CA when surge duty cycle exceeds 0.01 % or mechanical shock resistance is prioritized. |
Compared with SMBJ150CA and SMCJ150CA, the SMBG150CAHE3/52 delivers identical clamping performance in the smallest possible surface-mount form factor, optimized for AEC-Q101 compliance and high-volume automotive SMT assembly-making it the preferred choice where board area, thermal efficiency, and automotive qualification are jointly constrained.
Availability
SMBG150CAHE3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and motor drive gate protection requiring stable component supply and full traceability.
Supply support for SMBG150CAHE3/52 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, precision, and application-specific optimization.
The SMBG series was developed specifically for high-density, automotive-qualified transient suppression-balancing low profile, AEC-Q101 compliance, and repeatable clamping performance in harsh environments.
FAQ
What is the clamping voltage of SMBG150CAHE3/52 and how is it measured?
The SMBG150CAHE3/52 has a maximum clamping voltage (VC) of 243 V at 2.5 A peak pulse current, tested with a 10/1000 μs waveform per IEC 61000-4-5. This value represents the upper limit of voltage seen by protected circuitry during standardized surge events and is guaranteed across the full operating temperature range (−55 °C to +150 °C). The SMBG150CAHE3/52 achieves this with low incremental resistance, ensuring predictable and repeatable protection behavior.
Is SMBG150CAHE3/52 suitable for automotive applications?
Yes, the SMBG150CAHE3/52 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction-including glass-passivated junction, MSL Level 1 reflow compatibility, and operation up to +150 °C junction temperature-meets requirements for engine control, body electronics, and ADAS modules. The HE3 suffix denotes AEC-Q101 qualification and RoHS compliance, confirming its suitability for automotive production environments.
How does the bidirectional nature of SMBG150CAHE3/52 affect its circuit placement?
The SMBG150CAHE3/52 has no polarity marking and functions identically in both directions, making it ideal for AC-coupled lines, differential buses (e.g., CAN, LIN), or DC rails where reverse voltage transients may occur. Unlike unidirectional TVS diodes, it eliminates orientation errors during automated placement and simplifies schematic symbol usage-no cathode/anode designation is needed. This symmetry is confirmed in the Vishay datasheet, where VBR and VC values are identical for both polarities.
What is the thermal resistance of SMBG150CAHE3/52 and how does it impact layout?
The SMBG150CAHE3/52 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 safe junction temperatures under repetitive surges, PCB layout must provide adequate copper area and thermal vias. Reducing pad size or omitting thermal relief increases RθJA, potentially exceeding the +150 °C TJ max during sustained surge activity-so the SMBG150CAHE3/52 requires strict adherence to Vishay's recommended pad dimensions.
Does SMBG150CAHE3/52 have any special handling or storage requirements?
The SMBG150CAHE3/52 is supplied in moisture-sensitive packaging (MSL Level 1) and does not require dry pack or baking prior to assembly. It is compatible with standard J-STD-020 lead-free reflow profiles peaking at 260 °C. Storage should be at ambient conditions (≤30 °C, ≤60 % RH); no special desiccant or nitrogen environment is needed. The HE3 suffix confirms industrial-grade reliability and halogen-free compliance per Vishay's material categorization guidelines.
SMBG150CAHE3/52 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG150CAHE3/52 FAQ
1.How can I place an order for SMBG150CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG150CAHE3/52 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 SMBG150CAHE3/52 reliable?
The price and inventory of SMBG150CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG150CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG150CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG150CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG150CAHE3/52?
SMBG150CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG150CAHE3/52 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 SMBG150CAHE3/52?
For technical support, including SMBG150CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG150CAHE3/52 requirements.
6.How does Aetrix verify that SMBG150CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG150CAHE3/52 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 SMBG150CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG150CAHE3/52?
All SMBG150CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG150CAHE3/52, 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 SMBG150CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBG150CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG150CAHE3/52 Tags
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