My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG150CA-E3/5B
- Part No.:
- SMBG150CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG150CA-E3/5B.pdf
- Description:
- TVS DIODE 150VWM 243VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,127
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG150CA-E3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, rated for 150 V standoff voltage (VWM), 243 A peak pulse current (IPPM) at 10/1000 μs, 600 W peak pulse power (PPPM), and clamping voltage of 243 V at IPPM, used to protect automotive sensor signal lines against ESD and load-dump transients.
For engineers reviewing the SMBG150CA-E3/5B datasheet, SMBG150CA-E3/5B pinout, SMBG150CA-E3/5B application, or SMBG150CA-E3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, bidirectional clamping behavior, thermal resistance (RθJA = 100 °C/W), and mounting pad layout compliance per J-STD-020 MSL level 1.
Technical Context
This device operates as a voltage-clamped surge protector with symmetrical breakdown in both directions (VBR min/max = 167 V / 185 V at IT = 1 mA), enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns).
Designed for repetitive surge events at 0.01% duty cycle, it sustains 600 W peak pulse power under 10/1000 μs waveform when mounted on 5.0 mm × 5.0 mm copper pads, with thermal resistance RθJL = 20 °C/W ensuring reliable junction temperature control during transient dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR (min/max) | 167 V / 185 V at IT = 1 mA - Confirmed bidirectional breakdown threshold; ensures symmetric clamping onset across polarity. |
| IPPM | 243 A at 10/1000 μs - Peak surge current handling capacity; determines survivability against ISO 7637-2 Pulse 1/2/5a transients. |
| VC | 243 V at IPPM - Clamped voltage during full-rated surge; sets upper voltage limit imposed on downstream ICs or MOSFETs. |
| PPPM | 600 W - Peak pulse power dissipation capability; validates suitability for automotive load-dump suppression per SAE J1113-11. |
| TJ max | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive environments. |
| MSL Level | Level 1 (260 °C peak reflow) - Enables standard lead-free PCB assembly without moisture sensitivity concerns. |
| AEC-Q101 | Qualified - Certified for automotive-grade reliability including HTOL, TC, and ESD testing per AEC specification. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking; case dimensions 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal A | One side of symmetrical PN junction; connects to line under protection (e.g., CAN_H or LIN bus). |
| Cathode | Terminal K | Other side of symmetrical PN junction; connects to same line (bidirectional), forming common-mode clamp path. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validated surge energy handling for automotive load-dump events without degradation over 1000 cycles. |
| AEC-Q101 qualification | Meets automotive stress test requirements including temperature cycling, high-temperature operating life, and ESD robustness. |
| Low incremental surge resistance | Ensures minimal voltage overshoot during fast-rising transients (<1 ns response), critical for protecting high-speed interfaces. |
| MSL Level 1 moisture sensitivity | Eliminates bake-out requirement prior to reflow, reducing manufacturing cost and process complexity. |
| Glass passivated chip junction | Provides stable leakage current (<1.0 μA at VWM) and long-term parameter stability under thermal cycling. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensor output lines from inductive switching spikes and battery dump transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between sensor output and microcontroller input, shunting surge energy to ground. Use Value: Limits voltage seen by downstream MCU ADC input to ≤243 V during 100 V/50 ms load dump, preventing latch-up or permanent damage. | Use Scenario: Safeguarding CAN transceiver (e.g., TJA1042) pins against ESD and coupled noise in factory automation PLC networks. IC Role / Device Role / Timing Role: Common-mode TVS connected across CAN_H/CAN_L differential pair, clamping surges equally on both lines. Use Value: Maintains CAN signal integrity by clamping common-mode transients to <243 V while preserving differential voltage swing required for bit decoding. |
| Telecom Line Interface | Power Supply Input Stage |
Use Scenario: Shielding RS-485 transceivers in base station remote units from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Bidirectional TVS installed at connector entry point, referenced to local ground plane. Use Value: Absorbs up to 600 W of induced surge energy within 1000 μs, limiting residual voltage to ≤243 V at transceiver pins. | Use Scenario: Secondary-level overvoltage protection on 24 V DC input rail feeding industrial motor controllers. IC Role / Device Role / Timing Role: Parallel-connected TVS across input capacitor, activated only during overvoltage events exceeding 150 V. Use Value: Prevents upstream DC/DC converter failure by clamping input surges to 243 V before they reach primary-side FETs or controller ICs. |
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-M3/5B | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free material compliance is mandated by OEM environmental policy. | Choose SMBG150CA-M3/5B when halogen-free bill-of-materials is required; otherwise SMBG150CA-E3/5B is standard industrial grade. |
| SMC150CAHE3/5B | Same VWM/VC ratings but in larger SMC (DO-214AB) package; higher thermal mass, RθJA = 40 °C/W vs. 100 °C/W. | Better suited for high-repetition-rate surges or elevated ambient temperatures due to superior heat dissipation. | Select SMC150CAHE3/5B when board space allows and thermal derating margin is critical; SMBG150CA-E3/5B prioritizes compactness and automated placement. |
Compared with SMBG150CA-M3/5B, the SMBG150CA-E3/5B offers identical protection performance in a standard RoHS-compliant package, while SMC150CAHE3/5B trades footprint size for enhanced thermal robustness-making SMBG150CA-E3/5B optimal for space-constrained automotive modules requiring AEC-Q101 assurance.
Availability
SMBG150CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, telecom line interface, and power supply input stage applications requiring stable component supply and AEC-Q101 traceability.
Supply support for SMBG150CA-E3/5B 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 and automotive qualification.
The SMBG series is engineered specifically for surface-mount transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where compact size, AEC-Q101 compliance, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of SMBG150CA-E3/5B at its rated peak pulse current?
The SMBG150CA-E3/5B has a maximum clamping voltage (VC) of 243 V when subjected to its rated peak pulse current (IPPM) of 243 A under the standard 10/1000 μs waveform. This value is measured with the device mounted on 5.0 mm × 5.0 mm copper pads per the Vishay datasheet Figure 2 derating curve and defines the upper voltage limit imposed on protected circuitry during surge events.
Is SMBG150CA-E3/5B suitable for automotive applications?
Yes, SMBG150CA-E3/5B is AEC-Q101 qualified and explicitly designed for automotive use, including engine control units, body electronics, and ADAS sensor modules. Its 150 V standoff voltage, 243 V clamping, and ability to withstand load-dump transients per SAE J1113-11 make SMBG150CA-E3/5B appropriate for 12 V and 24 V vehicle systems where reliability under thermal and electrical stress is critical.
Does SMBG150CA-E3/5B have polarity markings?
No, SMBG150CA-E3/5B is a bidirectional TVS diode and carries no polarity marking on the package. Unlike unidirectional variants (e.g., SMBG150A), the CA suffix indicates symmetrical breakdown behavior, allowing it to protect AC-coupled or differential signal lines such as CAN, LIN, or RS-485 without regard to orientation during placement-simplifying assembly and eliminating risk of reverse installation.
What is the thermal resistance of SMBG150CA-E3/5B?
The SMBG150CA-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal, and a junction-to-lead resistance (RθJL) of 20 °C/W. These values are essential for calculating steady-state junction temperature rise during repetitive surge events and confirm SMBG150CA-E3/5B's suitability for high-temperature under-hood locations.
How does SMBG150CA-E3/5B differ from unidirectional SMBG150A-E3/5B?
SMBG150CA-E3/5B is bidirectional with symmetrical VBR (167–185 V) and no cathode band, while SMBG150A-E3/5B is unidirectional with anode/cathode polarity and forward voltage drop (~3.5 V at 50 A). The CA version protects both polarities equally-ideal for differential buses-whereas the A version only clamps reverse surges and conducts forward current, making SMBG150CA-E3/5B the correct choice for CAN, LIN, or Ethernet PHY protection.
SMBG150CA-E3/5B 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG150CA-E3/5B FAQ
1.How can I place an order for SMBG150CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG150CA-E3/5B 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 SMBG150CA-E3/5B reliable?
The price and inventory of SMBG150CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG150CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG150CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG150CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG150CA-E3/5B?
SMBG150CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG150CA-E3/5B 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 SMBG150CA-E3/5B?
For technical support, including SMBG150CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG150CA-E3/5B requirements.
6.How does Aetrix verify that SMBG150CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG150CA-E3/5B 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 SMBG150CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG150CA-E3/5B?
All SMBG150CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG150CA-E3/5B, 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 SMBG150CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBG150CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG150CA-E3/5B Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
