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Vishay General Semiconductor - Diodes Division SMBJ10CA-M3/52
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- Part No.:
- SMBJ10CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10CA-M3/52.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,353
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Product details
Overview
SMBJ10CA-M3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 1 mA, 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), used in industrial sensor protection and telecom interface surge suppression.
For engineers reviewing the SMBJ10CA-M3/52 datasheet, SMBJ10CA-M3/52 pinout, SMBJ10CA-M3/52 application, or SMBJ10CA-M3/52 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal resistance (RθJA = 100 °C/W), JEDEC-compliant SMB package dimensions, and AEC-Q101-qualified alternatives - all critical for ESD/surge design validation and BOM selection.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR min/max (11.1–12.3 V), VC (17.0 V), and IPPM (35.3 A) in either direction. Its glass-passivated junction ensures stable leakage (<5.0 µA at VWM) and fast response time (<1.0 ns), enabling effective suppression of inductive switching spikes and lightning-induced surges on differential or AC-coupled lines.
The device complies with ANSI/IEEE C62.35 for transient suppressor definitions and meets MSL Level 1 per J-STD-020 (peak reflow 260 °C). Its low incremental surge resistance and excellent clamping ratio (VC/VBR ≈ 1.53) support robust protection without overstressing downstream ICs like RS-485 transceivers or microcontroller I/O pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range. |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - Confirmed breakdown threshold in both directions; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 17.0 V at 35.3 A (10/1000 µs) - Clamped voltage seen by protected circuit; limits stress on 3.3 V or 5 V logic interfaces. |
| PPPM | 600 W - Peak transient energy handling capability; supports repetitive surge events at 0.01 % duty cycle. |
| ID @ VWM | ≤5.0 µA - Low reverse leakage preserves signal integrity and battery life in always-on sensor nodes. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs derating above 25 °C. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial enclosures. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant (M3 suffix), matte tin-plated terminals solderable per J-STD-002. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); polarity-unmarked for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; symmetrical with cathode in bidirectional mode | Enables clamping during positive or negative transients - no polarity dependency in PCB layout. |
| Cathode | Current exit terminal in forward bias; symmetrical with anode in bidirectional mode | Matches anode behavior - both terminals function identically for transient conduction in either direction. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both polarities - eliminates need for polarity-aware placement in AC or differential lines. |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation when mounted per recommended pad layout. |
| Low clamping voltage ratio | VC/VBR ≈ 1.53 - minimizes overvoltage exposure to protected ICs compared to higher-ratio suppressors. |
| MSL Level 1 rating | Compatible with standard SMT reflow profiles up to 260 °C peak - no moisture sensitivity handling required. |
| Halogen-free construction | M3 suffix confirms compliance with IPC-4101D/105 and EU Directive 2011/65/EU Annex II - supports green manufacturing requirements. |
Applications
| Industrial Sensor Interface Protection | RS-485/RS-422 Data Line Surge Suppression |
|---|---|
|
Use Scenario: Protecting analog output (4–20 mA) and digital I/O lines of pressure/temperature sensors in factory automation cabinets exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, responding within <1 ns to transients exceeding 10 V. Use Value: Limits induced spike voltage to ≤17.0 V, preventing latch-up or gate oxide damage in connected ADCs or isolators. |
Use Scenario: Shielding half-duplex RS-485 transceivers (e.g., MAX13487) in building management systems from cable discharge events and nearby lightning coupling. IC Role / Device Role / Timing Role: Differential-line TVS connected across A/B bus lines and ground, conducting surge current away from transceiver ESD structures. Use Value: Maintains signal integrity under 1 kV/µs slew-rate transients while adding <0.5 pF capacitance - no data rate degradation at 10 Mbps. |
| Telecom Power Supply Input Clamp | Automotive Body Control Module (BCM) Signal Protection |
|
Use Scenario: Safeguarding 12 V DC input rails of PoE-powered network switches against load dump and hot-swap transients. IC Role / Device Role / Timing Role: Parallel-connected TVS shunting surge energy to chassis ground before it reaches DC-DC converter input stage. Use Value: Absorbs 600 W pulses without thermal runaway, enabling single-device protection instead of multi-stage RC+TVS networks. |
Use Scenario: Securing LIN bus and switch inputs in BCMs subjected to ISO 7637-2 Pulse 1/2a/5a test waveforms in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamp on each LIN line referenced to battery ground, activated only during overvoltage excursions. Use Value: Survives 100 A surge pulses (Pulse 5a) with <150 °C junction limit - validated for AEC-Q101-compliant variants (HM3 suffix). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3) | Preferred for commercial-grade non-automotive designs where halogen content is unrestricted | Select E3 for cost-sensitive consumer electronics with standard RoHS compliance. |
| SMBJ10CAHM3_B/I | AEC-Q101 qualified; same SMB package, halogen-free, 13" tape-and-reel (3200 pcs) | Required for automotive body electronics requiring PPAP documentation and extended temperature validation | Choose HM3_B/I for OEM automotive programs needing full qualification traceability. |
Compared with SMBJ10CA-M3/52, the E3 variant offers identical protection performance at lower material cost for non-automotive use, while the HM3_B/I adds AEC-Q101 validation and larger reel packaging - enabling drop-in replacement in existing layouts but requiring qualification for safety-critical vehicle subsystems.
Availability
SMBJ10CA-M3/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, RS-485 communication lines, telecom power inputs, and automotive BCM signal protection requiring stable component supply and halogen-free compliance.
Supply support for SMBJ10CA-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 reliability, power efficiency, and automotive-grade qualification.
The SMBJ series targets high-energy transient suppression in space-constrained applications, engineered for robustness against inductive switching, ESD, and lightning surges in industrial, telecom, and automotive environments.
FAQ
What is the clamping voltage of SMBJ10CA-M3/52 at its rated peak pulse current?
The SMBJ10CA-M3/52 has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current (IPPM) of 35.3 A under the standardized 10/1000 µs waveform. This value is measured across the device terminals during transient conduction and represents the upper voltage limit imposed on the protected circuit - critical for ensuring compatibility with 3.3 V or 5 V logic interfaces downstream. The SMBJ10CA-M3/52 maintains this clamping performance bidirectionally.
Is SMBJ10CA-M3/52 suitable for automotive applications?
The SMBJ10CA-M3/52 itself is commercial-grade and halogen-free but not AEC-Q101 qualified. However, Vishay offers the functionally identical SMBJ10CAHM3_B/I variant - same SMB package, halogen-free, RoHS-compliant, and fully AEC-Q101 qualified for automotive use. For non-safety-critical automotive modules (e.g., interior lighting controls), SMBJ10CA-M3/52 may be used with customer validation; for BCM or gateway applications, SMBJ10CAHM3_B/I is the designated qualified part. The SMBJ10CA-M3/52 remains ideal for industrial and telecom designs.
How does the bidirectional nature of SMBJ10CA-M3/52 affect PCB layout?
The SMBJ10CA-M3/52 has no polarity marking and conducts identically in both directions, so PCB layout requires no orientation alignment - the device can be placed in either direction across a signal line and ground or across differential lines (e.g., RS-485 A/B). This simplifies automated assembly and eliminates risk of reverse installation. Its symmetric VBR (11.1–12.3 V) and VC (17.0 V) ensure consistent protection regardless of transient polarity. No silkscreen polarity indicator is needed for SMBJ10CA-M3/52.
What is the thermal resistance and how does it impact power derating?
The SMBJ10CA-M3/52 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. This means junction temperature rises 100 °C per watt of steady-state power dissipation. Since SMBJ10CA-M3/52 is rated for 5.0 W continuous power (PD) at TA = 50 °C, its usable power must be linearly derated above that ambient - e.g., to ~3.5 W at 70 °C. Transient power (600 W) is not thermally limited by RθJA due to short duration, but repeated surges require attention to average power.
Does SMBJ10CA-M3/52 meet any industry surge immunity standards?
The SMBJ10CA-M3/52 is designed to meet key surge immunity requirements including IEC 61000-4-5 (surge immunity) Level 4 (4 kV line-earth, 2 kV line-line) when implemented with proper PCB layout (e.g., short traces, ground plane, recommended pad size). Its 600 W peak pulse power and 17.0 V clamping voltage enable compliance in conjunction with system-level filtering. While the device itself is not "certified" to the standard, its published parameters align with test conditions defined in IEC 61000-4-5 Ed. 3, and Vishay provides application notes validating its use in such test setups. SMBJ10CA-M3/52 is also compliant with ANSI/IEEE C62.35 for transient suppressor definitions.
SMBJ10CA-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 35.3A
- 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 (SMBJ)
SMBJ10CA-M3/52 FAQ
1.How can I place an order for SMBJ10CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10CA-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 SMBJ10CA-M3/52 reliable?
The price and inventory of SMBJ10CA-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 SMBJ10CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ10CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10CA-M3/52?
SMBJ10CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10CA-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 SMBJ10CA-M3/52?
For technical support, including SMBJ10CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10CA-M3/52 requirements.
6.How does Aetrix verify that SMBJ10CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ10CA-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 SMBJ10CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ10CA-M3/52?
All SMBJ10CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10CA-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 SMBJ10CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ10CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10CA-M3/52 Tags
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