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Vishay General Semiconductor - Diodes Division SMBG150CAHE3/5B
- Part No.:
- SMBG150CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG150CAHE3/5B.pdf
- Description:
- TVS DIODE 150VWM 243VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,665
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Product details
Overview
SMBG150CAHE3/5B 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 standoff 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 SMBG150CAHE3/5B datasheet, SMBG150CAHE3/5B pinout, SMBG150CAHE3/5B application, or SMBG150CAHE3/5B equivalent, key selection criteria include bidirectional surge suppression capability, low clamping ratio (VC/VBR ≈ 1.45), MSL Level 1 moisture sensitivity, matte tin-plated leads compliant with J-STD-002, and suitability for automotive power line and sensor interface protection.
Technical Context
This device operates as a voltage-clamped shunt protector, responding within <1 ps to transients by avalanche breakdown across both polarities. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and repeatable clamping performance under repetitive 0.01% duty cycle surges.
The SMBG150CAHE3/5B is thermally rated for TJ = –55 °C to +150 °C, with RθJA = 100 °C/W (on 5.0 mm × 5.0 mm copper pads) and RθJL = 20 °C/W, enabling reliable operation in high-temperature engine bay or industrial control environments without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for 12 V/24 V/48 V system interfaces. |
| VBR (min/max) | 167 V / 185 V at IT = 1 mA - Ensures tight breakdown tolerance for predictable turn-on during ESD or load dump events. |
| VC @ IPPM | 243 V at 2.5 A (10/1000 μs) - Clamping voltage limits downstream IC stress; clamping ratio VC/VBR ≈ 1.45 indicates efficient energy diversion. |
| PPPM | 600 W - Sustains high-energy transients (e.g., ISO 7637-2 Pulse 5a) without failure when mounted per recommended pad layout. |
| ID @ VWM | <1.0 μA - Ultra-low leakage preserves signal integrity on high-impedance sensor lines and battery-backed circuits. |
| Package | SMBG (DO-215AA) - Surface-mount, low-profile (1.96 mm height), AEC-Q101 qualified, RoHS-compliant, MSL Level 1. |
Pinout & Package
SMBG150CAHE3/5B uses a 2-terminal SMBG (DO-215AA) package with no polarity marking-bidirectional symmetry means both terminals are functionally identical. The case conforms to JEDEC DO-215AA outline with gull-wing leads, matte tin plating, and UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Either terminal conducts during positive or negative overvoltage; no cathode band-enables flexible PCB layout and eliminates orientation errors. |
| Case (exposed metal slug) | Thermal conduction path | Integral heat-spreading structure; requires thermal pad connection to PCB copper for optimal RθJA performance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive powertrain and chassis applications requiring extended temperature cycling, humidity bias, and mechanical shock resistance. |
| 600 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Load Dump (Pulse 5a) and IEC 61000-4-5 Surges up to 4 kV without degradation when properly heatsinked. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage over 15+ year field life, even under thermal cycling and humidity exposure. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without pre-baking; eliminates moisture-related popcorning risk. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN/CAN transceivers and microcontrollers connected to 12 V/24 V battery rails against load dump and jump-start transients. IC Role / Device Role / Timing Role: Shunt clamping TVS placed directly at connector entry point to divert >95% of surge energy before it reaches protected ICs. Use Value: Limits clamped voltage to 243 V, well below typical 36 V absolute maximum ratings of CAN/LIN PHYs, preventing latch-up or gate oxide damage. | Use Scenario: Safeguarding analog outputs (4–20 mA) and digital sensor signals (e.g., pressure, temperature) in PLC I/O modules exposed to inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional clamp across signal pair to suppress ±1 kV EFT bursts and ±2 kV ESD per IEC 61000-4-4/4-2 without distorting DC signal levels. Use Value: Sub-μA leakage at 150 V standoff preserves millivolt-level accuracy in precision current loops and avoids offset drift in instrumentation amplifiers. |
| Telecom DC Power Feeding | Consumer Appliance Motor Drive Protection |
Use Scenario: Protecting PoE-powered devices (e.g., IP cameras, access points) receiving 48 V DC over Ethernet cables subject to lightning-induced surges. IC Role / Device Role / Timing Role: Primary front-end TVS on PSE-side DC input, coordinated with secondary GDT or MOV for staged surge handling. Use Value: Fast response (<1 ps) and low clamping ratio ensure downstream DC-DC converters see <250 V peak, avoiding overvoltage shutdown or capacitor rupture. | Use Scenario: Shielding MCU GPIOs and gate drivers controlling BLDC motors in washing machines or HVAC systems from commutation spikes. IC Role / Device Role / Timing Role: Localized TVS at motor driver output pins to clamp inductive kickback (L·di/dt) before reaching logic-level inputs. Use Value: 2.5 A peak pulse current rating handles repeated 100 ns–1 μs spikes from PWM-driven MOSFETs without parametric shift or thermal runaway. |
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; 1.0 mm taller, higher RθJA (125 °C/W). | Limited to non-AEC-Q101 industrial use; not qualified for automotive underhood deployment. | Select when cost sensitivity outweighs automotive qualification and thermal margin requirements. |
| SMCJ150CA | Same electrical specs, but larger SMC (DO-214AB) package; 1500 W PPPM, lower RθJA (50 °C/W), higher IPPM. | Better suited for high-repetition surge environments (e.g., factory automation), but occupies ~2.5× PCB area. | Choose when surge repetition rate exceeds 0.01% duty cycle or board space permits larger footprint. |
Compared with SMBJ150CA and SMCJ150CA, the SMBG150CAHE3/5B uniquely delivers AEC-Q101 compliance in the smallest qualified footprint (SMBG), balancing automotive reliability, thermal performance, and space-constrained PCB layouts-making it optimal for modern ADAS sensor hubs and compact ECU designs.
Availability
SMBG150CAHE3/5B is available at Aetrix Electronics and suitable for automotive infotainment head units, industrial PLC analog I/O modules, telecom PoE injectors, and consumer appliance motor controllers requiring stable component supply across multi-year production cycles.
Supply support for SMBG150CAHE3/5B 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, automotive qualification, and high-volume manufacturability.
The SMBG TRANSZORB® series was engineered specifically for space-constrained, high-reliability transient suppression in automotive and industrial systems-prioritizing AEC-Q101 compliance, low-profile packaging, and consistent clamping performance across temperature and lifetime.
FAQ
What does the "CA" suffix indicate in SMBG150CAHE3/5B?
The "CA" suffix denotes a bidirectional configuration: SMBG150CAHE3/5B provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMBG150A), it has no cathode marking and exhibits identical VBR, VC, and leakage characteristics in either polarity-critical for AC-coupled or floating signal lines where polarity reversal may occur.
Is SMBG150CAHE3/5B suitable for protecting CAN FD bus lines?
Yes-SMBG150CAHE3/5B is appropriate for CAN FD physical layer protection when placed at the connector interface. Its 150 V VWM exceeds the CAN FD common-mode range (±40 V), while its 243 V clamping voltage remains safely below the 36 V absolute maximum rating of most CAN FD transceivers. Its bidirectional nature matches the differential signaling architecture, and AEC-Q101 qualification supports automotive deployment.
How does the HE3 suffix affect SMBG150CAHE3/5B's compliance status?
The "HE3" suffix indicates RoHS compliance and AEC-Q101 qualification-distinct from base "E3" (RoHS only) or "HM3" (halogen-free + AEC-Q101). For SMBG150CAHE3/5B, HE3 confirms full automotive qualification including stress testing per AEC-Q101 Rev D, making it acceptable for safety-critical subsystems like body control modules and ADAS sensors where component pedigree is audited.
What is the maximum recommended PCB pad size for optimal thermal performance of SMBG150CAHE3/5B?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal for SMBG150CAHE3/5B to achieve the published RθJA = 100 °C/W. Using smaller pads increases junction temperature under surge conditions, potentially reducing clamping consistency and long-term reliability. Thermal vias under the slug are recommended for sustained high-duty-cycle applications.
Can SMBG150CAHE3/5B be used in parallel to increase surge current handling?
No-SMBG150CAHE3/5B should not be paralleled without external current-balancing resistors. Minor VBR tolerances (167–185 V) cause uneven current sharing during transients, risking thermal runaway in the lower-breakdown unit. For higher IPPM, select a single higher-rated device (e.g., SMCJ150CA) or implement staged protection with upstream GDT plus SMBG150CAHE3/5B as secondary clamp.
SMBG150CAHE3/5B 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)
SMBG150CAHE3/5B FAQ
1.How can I place an order for SMBG150CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG150CAHE3/5B 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 SMBG150CAHE3/5B reliable?
The price and inventory of SMBG150CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG150CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG150CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG150CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG150CAHE3/5B?
SMBG150CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG150CAHE3/5B 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 SMBG150CAHE3/5B?
For technical support, including SMBG150CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG150CAHE3/5B requirements.
6.How does Aetrix verify that SMBG150CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG150CAHE3/5B 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 SMBG150CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG150CAHE3/5B?
All SMBG150CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG150CAHE3/5B, 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 SMBG150CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBG150CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG150CAHE3/5B Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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