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Vishay General Semiconductor - Diodes Division SMBG150CA-E3/52
- Part No.:
- SMBG150CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG150CA-E3/52.pdf
- Description:
- TVS DIODE 150VWM 243VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,669
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Product details
Overview
SMBG150CA-E3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of signal and power lines. 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 SMBG150CA-E3/52 datasheet, SMBG150CA-E3/52 pinout, SMBG150CA-E3/52 application, or SMBG150CA-E3/52 equivalent, key selection criteria include bidirectional surge clamping performance, junction temperature range (−55 °C to +150 °C), low leakage (<1.0 µA at VWM), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR, IPPM, and VC specifications for positive and negative transients. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the low incremental surge resistance enables effective energy diversion during ESD or lightning-induced surges.
The device is rated for 600 W peak pulse power under standardized 10/1000 µs waveform at 0.01% duty cycle, with thermal resistance RθJA = 100 °C/W (on 0.2" × 0.2" copper pads) and RθJL = 20 °C/W, supporting reliable operation in high-temperature automotive and industrial environments up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12 V/24 V/48 V system rails. |
| VBR (min/max) | 167 V / 185 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 243 V at 2.5 A - Clamped voltage under full-rated surge; limits downstream IC stress during 600 W transient. |
| ID @ VWM | <1.0 µA - Ultra-low leakage preserves signal integrity and battery life in always-on circuits. |
| PPPM | 600 W (10/1000 µs) - Peak surge handling capacity; meets ISO 7637-2 Pulse 1/2/3a and IEC 61000-4-5 Level 3 requirements. |
| TJ Range | −55 °C to +150 °C - Full automotive temperature coverage; supports under-hood and ADAS module deployment. |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; compatible with standard reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMBG (DO-215AA) - surface-mount, low-profile (max height 1.96 mm), gull-wing leads, matte tin-plated terminals solderable per J-STD-002/JESD 22-B102, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal A (bidirectional) | One end of symmetrical junction; no polarity marking; connects to protected line (e.g., CAN_H or LIN). |
| Cathode | Terminal K (bidirectional) | Other end of symmetrical junction; no polarity marking; connects to reference (e.g., ground or chassis). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal and humidity stress. |
| 600 W peak pulse power | Handles repetitive surge events without degradation when derated per Fig. 2 above 25 °C ambient. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during fast transients, protecting sensitive gate drivers and transceivers. |
| MSL Level 1, 260 °C peak | Eliminates bake-out requirement and supports high-volume automated assembly without moisture-related defects. |
Applications
| Automotive CAN Bus Protection | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L differential pair in vehicle body control modules against load dump and ESD. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between data lines and chassis ground to shunt surge energy. Use Value: Maintains signal integrity below 243 V clamp during 600 W transients, preserving CAN FD timing margins and preventing transceiver latch-up. | Use Scenario: Shielding 4–20 mA current loop or RS-485 bus in factory automation sensors from inductive switching noise. IC Role / Device Role / Timing Role: Line-to-ground TVS on each conductor to limit common-mode overvoltage without affecting DC bias. Use Value: Sub-1 µA leakage avoids current loop error; 150 V VWM accommodates 24 V supply headroom while clamping at 243 V. |
| Telecom Power Feeds | Consumer USB Port ESD Protection |
Use Scenario: Safeguarding PoE (Power over Ethernet) midspan injectors against lightning-induced surges on 48 V DC feed lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input rail upstream of DC/DC converter. Use Value: 600 W rating handles multi-kA induced surges; 150 V VWM aligns with IEEE 802.3af/at hold-up voltage requirements. | Use Scenario: Board-level ESD protection for USB 2.0 D+/D− lines in portable audio devices exposed to human-body-model (HBM) discharges. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at connector to divert ESD before reaching PHY IC. Use Value: Symmetric clamping prevents signal inversion; <1.0 µA leakage avoids pull-up/pull-down interference on idle lines. |
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-T | Same VWM/VBR/PPPM; SMB (DO-214AA) package (larger footprint, higher RθJA = 125 °C/W). | Less suitable for space-constrained automotive PCBs; requires larger pad layout. | Select when legacy SMB footprint is fixed and thermal derating margin exists. |
| SMCJ150CA | Same electrical specs; SMC (DO-214AB) package (higher PPPM = 1500 W, but larger size and higher cost). | Over-specified for 600 W needs; adds unnecessary board area and BOM cost. | Choose only if future-proofing for >1 kW surge standards is required. |
Compared with SMBJ150CA-T and SMCJ150CA, SMBG150CA-E3/52 delivers identical clamping performance in the smallest qualified footprint (SMBG), enabling higher-density layouts and lower thermal resistance (RθJA = 100 °C/W) - critical for under-hood automotive modules where airflow is limited.
Availability
SMBG150CA-E3/52 is available at Aetrix Electronics and suitable for automotive CAN bus protection, industrial sensor signal conditioning, and telecom power feed applications requiring stable component supply, AEC-Q101 compliance, and RoHS-compliant manufacturing.
Supply support for SMBG150CA-E3/52 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 reliability, automotive qualification, and high-volume manufacturability.
The SMBG series is engineered specifically for space-constrained, high-reliability transient suppression in automotive and industrial systems - prioritizing low profile, AEC-Q101 validation, and consistent clamping across temperature.
FAQ
What is the maximum clamping voltage of SMBG150CA-E3/52 under rated surge conditions?
The SMBG150CA-E3/52 has a maximum clamping voltage (VC) of 243 V when subjected to its rated peak pulse current of 2.5 A (10/1000 µs waveform). This value is measured per Figure 1 in Vishay document 88456 and reflects worst-case clamping performance at TA = 25 °C with recommended 5.0 mm × 5.0 mm copper pads. The SMBG150CA-E3/52 maintains this clamping level across its full operating temperature range.
Is SMBG150CA-E3/52 suitable for automotive applications?
Yes, SMBG150CA-E3/52 is AEC-Q101 qualified per Vishay documentation (Rev. 09-Jan-2024, Doc. #88456), confirming compliance with stress tests including high-temperature reverse bias, high-temperature operating life, and temperature cycling. Its −55 °C to +150 °C junction temperature range, MSL Level 1 rating, and RoHS-compliant E3 suffix make it appropriate for engine control units, ADAS cameras, and body electronics. The SMBG150CA-E3/52 is explicitly listed in Vishay's automotive-grade product matrix.
How does the SMBG150CA-E3/52 differ from unidirectional variants like SMBG150A-E3/52?
The SMBG150CA-E3/52 is bidirectional, meaning it clamps symmetrically for both positive and negative transients, with identical VBR, IPPM, and VC in either polarity. In contrast, SMBG150A-E3/52 is unidirectional, featuring a cathode band marking and conducting only in reverse bias - requiring correct orientation on PCB. The "CA" suffix denotes bidirectional function; the SMBG150CA-E3/52 has no polarity marking and is used where AC-coupled or differential lines need protection without directional constraints.
What is the leakage current specification for SMBG150CA-E3/52 at its stand-off voltage?
At its rated stand-off voltage (VWM) of 150 V and TA = 25 °C, the SMBG150CA-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA, as specified in Table "ELECTRICAL CHARACTERISTICS" on page 2 of Vishay document 88456. This ultra-low leakage ensures minimal power loss in always-on systems and avoids interference with precision analog or current-loop interfaces. The SMBG150CA-E3/52 maintains this spec across its full temperature range with minor increase per derating curves.
Does SMBG150CA-E3/52 require special PCB layout considerations?
Yes - Vishay specifies mounting on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power and thermal performance (RθJA = 100 °C/W). Trace width and copper thickness must support 2.5 A surge current without excessive voltage drop. The SMBG150CA-E3/52 has no polarity marking, so orientation is non-critical, but thermal vias under pads are recommended for high-reliability automotive use to manage junction temperature rise.
SMBG150CA-E3/52 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:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG150CA-E3/52 FAQ
1.How can I place an order for SMBG150CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG150CA-E3/52 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-E3/52 reliable?
The price and inventory of SMBG150CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG150CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG150CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG150CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG150CA-E3/52?
SMBG150CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG150CA-E3/52 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-E3/52?
For technical support, including SMBG150CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG150CA-E3/52 requirements.
6.How does Aetrix verify that SMBG150CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG150CA-E3/52 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-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG150CA-E3/52?
All SMBG150CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG150CA-E3/52, 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-E3/52 part is unused and in its original packaging.
Return procedure for SMBG150CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG150CA-E3/52 Tags
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