My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG9.0CA-M3/52
- Part No.:
- SMBG9.0CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG9.0CA-M3/52.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,015
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG9.0CA-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 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1 mA, 15.4 V maximum clamping voltage (VC) at 39.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect automotive sensor interfaces and industrial I/O lines against ESD and load dump.
For engineers reviewing the SMBG9.0CA-M3/52 datasheet, SMBG9.0CA-M3/52 pinout, SMBG9.0CA-M3/52 application, or SMBG9.0CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a symmetrical avalanche diode, conducting in both directions when reverse voltage exceeds VBR, with identical electrical characteristics in forward and reverse polarity. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the low Rsurge enables effective energy diversion during transient events.
The SMBG9.0CA-M3/52 is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020, and is qualified to AEC-Q101 for automotive under-hood applications. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead) under specified mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse working voltage before clamping begins; sets operating margin for protected line. |
| VBR @ IT = 1 mA | 10.0–11.1 V - Breakdown threshold where avalanche conduction initiates; defines minimum overvoltage trip point. |
| VC @ IPPM = 39.0 A | 15.4 V - Clamped voltage during 600 W transient; determines maximum stress imposed on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; validates robustness against IEC 61000-4-5 surge events. |
| IPPM | 39.0 A - Corresponding peak pulse current at VC; used to size PCB trace width and thermal pad area. |
| Junction Temp Range | -55 °C to +150 °C - Enables deployment in engine control units, motor drives, and industrial PLCs without derating. |
| Qualification | AEC-Q101 qualified - Confirmed reliability for automotive electronics per stress test requirements including HTOL, TC, and UHAST. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (reverse bias) | One terminal of symmetrical junction; conducts during positive or negative overvoltage event relative to cathode. |
| Cathode | Transient current exit (reverse bias) | Second terminal of symmetrical junction; forms bidirectional clamping path with anode; no band marking. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC in both polarities - eliminates need for polarity-aware layout in AC-coupled or differential signal protection. |
| 600 W peak pulse power | Validated with 10/1000 μs waveform at 0.01% duty cycle - supports immunity to ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave surges. |
| AEC-Q101 qualification | Qualified for automotive under-hood use - includes high-temp operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST). |
| Halogen-free & RoHS compliant (M3) | Meets JEDEC JESD201 Class 2 whisker resistance and IPC-1752 material declaration requirements - suitable for green manufacturing programs. |
| Low-profile SMBG package | Height ≤ 2.10 mm - enables compact placement near connectors or ICs without interfering with adjacent components or shields. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control modules from load dump and ESD. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed between signal line and ground, absorbing transients before they reach the IC's ESD structure. Use Value: Limits induced voltage to ≤15.4 V during 39 A surge, preventing latch-up or gate oxide damage in 5 V or 3.3 V interface ICs. | Use Scenario: Safeguarding RS-485/RS-422 transceiver pins in programmable logic controllers exposed to field wiring surges and lightning-induced coupling. IC Role / Device Role / Timing Role: Line-side transient suppressor mounted directly at connector entry point, shunting surge energy to chassis ground. Use Value: Maintains signal integrity by clamping within 1 ns and limiting post-clamp overshoot to <1.5 V above VC, preserving data timing margins. |
| Consumer Power Adapter Input | Telecom DSL Line Protection |
Use Scenario: Secondary-side DC input protection in USB-C PD adapters subjected to hot-plug transients and capacitive discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS across VIN–GND rail, activated only during overvoltage excursions exceeding 9.0 V. Use Value: Prevents brownout or reset of downstream DC-DC controllers by clamping at 15.4 V, well below typical 20 V absolute max ratings. | Use Scenario: Primary protection for ADSL/VDSL line drivers connected to outside plant wiring vulnerable to induced surges and AC power cross-talk. IC Role / Device Role / Timing Role: First-stage protector in hybrid protection circuit, paired with gas discharge tube (GDT) for coordinated staging. Use Value: Provides low-capacitance (<100 pF at 0 V) clamping without degrading high-frequency DSL signal integrity up to 30 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating), different package: SMB (DO-214AA), slightly larger footprint (4.57 mm × 3.94 mm × 2.31 mm height). | Not AEC-Q101 qualified; intended for industrial/commercial use only. | Select SMBJ9.0CA only if AEC-Q101 is not required and existing PCB uses SMB land pattern. |
| SMAJ9.0CA | Same electrical specs, but lower PPPM = 400 W; SMA (DO-214AC) package, smaller footprint (4.57 mm × 2.92 mm × 2.31 mm) and higher thermal resistance (RθJA = 140 °C/W). | Limited to lower-energy transients; unsuitable for automotive load dump or IEC 61000-4-5 Level 3+ testing. | Choose SMAJ9.0CA only for space-constrained consumer applications with verified <400 W surge exposure. |
Compared with SMBJ9.0CA and SMAJ9.0CA, the SMBG9.0CA-M3/52 delivers identical clamping performance in a lower-profile, AEC-Q101-qualified, halogen-free package - making it the preferred choice for automotive and high-reliability industrial designs where board height and qualification compliance are critical.
Availability
SMBG9.0CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, and telecom line safeguarding requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for SMBG9.0CA-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, MOSFETs, and protection devices with emphasis on high-reliability, automotive-grade, and industry-standard solutions.
The SMBG series is engineered specifically for high-power transient suppression in space-constrained, thermally demanding environments - targeting automotive powertrain, ADAS, and industrial automation systems requiring AEC-Q101 validation and robust surge immunity.
FAQ
What does the "CA" suffix indicate in SMBG9.0CA-M3/52?
The "CA" suffix denotes a bidirectional configuration: SMBG9.0CA-M3/52 provides symmetrical clamping in both polarities, with identical breakdown and clamping characteristics for positive and negative transients. This eliminates polarity concerns during layout and supports AC-coupled or differential signal protection - unlike unidirectional variants (e.g., SMBG9.0A) that require correct cathode orientation.
Is SMBG9.0CA-M3/52 suitable for automotive under-hood applications?
Yes, SMBG9.0CA-M3/52 is AEC-Q101 qualified and rated for -55 °C to +150 °C junction temperature, making it suitable for under-hood automotive applications such as engine control units, transmission control modules, and body electronics. Its halogen-free (M3) construction and MSL Level 1 moisture sensitivity further support reflow-compatible manufacturing in automotive supply chains.
How does the SMBG package differ from SMB or SMA packages in terms of thermal performance?
The SMBG (DO-215AA) package used in SMBG9.0CA-M3/52 offers lower profile (2.10 mm height) than SMB (DO-214AA, 2.31 mm) and improved thermal resistance: RθJL = 20 °C/W vs. ~25–30 °C/W for SMB/SMA. Its optimized leadframe design enhances heat dissipation to PCB copper pads, supporting sustained 600 W pulse handling when mounted on 5.0 mm × 5.0 mm pads per terminal.
What is the maximum clamping voltage of SMBG9.0CA-M3/52 and at what current is it specified?
The maximum clamping voltage (VC) of SMBG9.0CA-M3/52 is 15.4 V, measured at a peak pulse current (IPPM) of 39.0 A using a 10/1000 μs waveform. This value represents the worst-case voltage seen by protected circuitry during a full 600 W transient event and is critical for ensuring downstream ICs remain within their absolute maximum ratings.
Does SMBG9.0CA-M3/52 require a heatsink for standard operation?
No external heatsink is required for SMBG9.0CA-M3/52 under standard transient conditions. Its thermal design relies on PCB copper pads (minimum 5.0 mm × 5.0 mm per terminal) to dissipate surge energy. With RθJA = 100 °C/W and short-duration pulses (≤1 ms), junction temperature rise remains within safe limits. Continuous power dissipation is not applicable - this device is rated only for non-repetitive surges.
SMBG9.0CA-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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 39A
- 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)
SMBG9.0CA-M3/52 FAQ
1.How can I place an order for SMBG9.0CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG9.0CA-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 SMBG9.0CA-M3/52 reliable?
The price and inventory of SMBG9.0CA-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 SMBG9.0CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG9.0CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG9.0CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG9.0CA-M3/52?
SMBG9.0CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG9.0CA-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 SMBG9.0CA-M3/52?
For technical support, including SMBG9.0CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG9.0CA-M3/52 requirements.
6.How does Aetrix verify that SMBG9.0CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG9.0CA-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 SMBG9.0CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG9.0CA-M3/52?
All SMBG9.0CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG9.0CA-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 SMBG9.0CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBG9.0CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG9.0CA-M3/52 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
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 …
