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Vishay General Semiconductor - Diodes Division SMBJ10CA-M3/5B
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- Part No.:
- SMBJ10CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10CA-M3/5B.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,258
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Product details
Overview
SMBJ10CA-M3/5B 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 and power lines. It features 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 interface protection.
For engineers reviewing the SMBJ10CA-M3/5B datasheet, SMBJ10CA-M3/5B pinout, SMBJ10CA-M3/5B application, or SMBJ10CA-M3/5B equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM ≈ 1.7), MSL Level 1 moisture sensitivity, halogen-free RoHS compliance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates symmetrically in both directions, enabling protection of AC-coupled or differential signal lines without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the low incremental surge resistance supports fast energy dissipation during ESD or lightning-induced surges.
The device is rated for -55 °C to +150 °C operating junction temperature and exhibits a typical thermal resistance of 100 °C/W (junction-to-ambient) on standard PCB pads. Its 10/1000 μs waveform response delivers repeatable clamping performance at 0.01% duty cycle, making it suitable for infrequent but high-energy transients in industrial control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 12 V nominal bus lines. |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - Confirmed breakdown range ensures reliable triggering across process variation and temperature. |
| VC @ IPPM | 17.0 V at 35.3 A - Clamping voltage limits downstream IC stress during 600 W transient events; VC/VWM = 1.7 enables robust margin over 12 V logic rails. |
| PPPM | 600 W (10/1000 μs) - Peak pulse power rating validated under JEDEC-standard waveform; supports IEC 61000-4-5 Level 3 surge immunity. |
| ID @ VWM | ≤1.0 μA - Ultra-low reverse leakage preserves signal integrity and battery life in always-on sensor interfaces. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm max length, 4.06 mm max width, and 2.20 mm max height; optimized for high-density PCB layouts. |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; supports standard reflow without dry-pack or baking requirements. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional terminal pair | No functional distinction between terminals; either side connects to protected line, other to ground or reference rail - enables single-component protection of AC or floating signals. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 surge test Level 3 (1 kV line-to-ground, 2 kV line-to-line) without derating on standard PCB pads. |
| Clamping voltage ≤17.0 V at 35.3 A | Provides ≥5 V headroom below 22 V absolute maximum ratings of common 12 V automotive and industrial microcontrollers. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and EU Directive 2011/65/EU Annex II substance restrictions. |
| Low profile SMB package | 0.084–0.096 inch (2.13–2.44 mm) height allows use in space-constrained modules such as IoT edge sensors and motor drive feedback circuits. |
| Fast response time & low surge resistance | Sub-nanosecond turn-on and <0.1 Ω dynamic impedance limit voltage overshoot during ESD events (IEC 61000-4-2 ±8 kV contact). |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loop) and digital I/O (CAN/LIN stubs) from load dump and inductive switching transients in factory automation PLCs. IC Role / Device Role: Bidirectional clamping element placed between signal line and chassis ground, absorbing energy before it reaches precision ADCs or isolators. Use Value: Prevents latch-up or permanent damage to 12-bit SAR ADCs (e.g., ADS1115) by limiting transient voltage to ≤17.0 V during 100 V/μs edge events. |
Use Scenario: Shielding LIN bus transceivers and window motor driver ICs from battery line transients during ignition cycling and alternator load dump in door modules. IC Role / Device Role: Secondary-level TVS placed directly at connector entry point, complementing primary fuse and LC filtering. Use Value: Maintains LIN physical layer integrity by clamping 100 V/100 ms load dump spikes to <20 V, ensuring uninterrupted communication during ISO 7637-2 Pulse 5a testing. |
| Telecom Power Supply Input | Consumer USB-C Port Protection |
|
Use Scenario: Safeguarding 48 V DC input stage of PoE-powered network switches against induced surges from nearby AC mains wiring and lightning coupling. IC Role / Device Role: Front-end transient suppressor on primary-side DC bus, coordinated with upstream MOV and downstream DC-DC converter OVP. Use Value: Limits surge voltage to ≤17.0 V × (48 V / 10 V) = 81.6 V equivalent clamping at system level, preventing MOSFET avalanche failure in active OR-ing circuits. |
Use Scenario: Protecting USB-C CC and VCONN lines in portable speakers and docking stations from ESD and hot-plug voltage spikes. IC Role / Device Role: Low-capacitance bidirectional clamp integrated into Type-C receptacle flex circuit, adjacent to EMI filter. Use Value: Achieves <3 pF junction capacitance (typ.) at zero bias, preserving USB 2.0 signal integrity while passing ±15 kV air/±8 kV contact IEC 61000-4-2 ESD testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA-E3/5B | Same electrical specs and SMB package; RoHS-compliant but not halogen-free (E3 vs. M3). | Preferred for commercial-grade non-automotive designs where halogen content is unrestricted. | Select SMBJ10CA-E3/5B when cost optimization is prioritized and halogen-free certification is not required by end-equipment standards. |
| SMAJ10CA-M3 | Lower PPPM (400 W), higher VC (20.0 V), same VWM/VBR; SMA (DO-214AC) package with smaller footprint (4.5 × 2.7 mm vs. 5.6 × 4.1 mm). | Better suited for space-constrained consumer ports; insufficient for 600 W industrial surge requirements. | Choose SMAJ10CA-M3 only for compact USB or audio jack protection where peak power demand is ≤400 W and board area is critical. |
Compared with SMBJ10CA-E3/5B, the SMBJ10CA-M3/5B adds halogen-free compliance without sacrificing clamping performance or thermal capability; versus SMAJ10CA-M3, it delivers 50% higher surge power handling and lower clamping voltage in a slightly larger but more robust SMB outline.
Availability
SMBJ10CA-M3/5B is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control module, telecom power supply input, and consumer USB-C port protection requiring stable component supply and full traceability.
Supply support for SMBJ10CA-M3/5B 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, efficiency, and application-specific optimization.
The SMBJ series was developed for high-energy transient suppression in harsh environments, targeting industrial automation, automotive subsystems, and infrastructure equipment where long-term stability and surge survivability are critical.
FAQ
What is the maximum clamping voltage of SMBJ10CA-M3/5B at its rated peak pulse current?
The SMBJ10CA-M3/5B has a maximum clamping voltage (VC) of 17.0 V at its specified peak pulse current (IPPM) of 35.3 A under the 10/1000 μs waveform condition. This value is measured per JEDEC standard and ensures predictable voltage limiting during surge events. The SMBJ10CA-M3/5B maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C), with minimal drift due to its stable glass-passivated junction structure.
Is SMBJ10CA-M3/5B suitable for automotive applications requiring AEC-Q101 qualification?
No, SMBJ10CA-M3/5B is not AEC-Q101 qualified. It carries the M3 suffix indicating halogen-free RoHS compliance for commercial-grade use. For automotive applications, Vishay offers the SMBJ10CA-HM3_B/I variant, which adds AEC-Q101 qualification while retaining identical electrical parameters and SMB packaging. The SMBJ10CA-M3/5B remains appropriate for industrial and telecom systems where AEC-Q101 is not mandated.
How does the bidirectional nature of SMBJ10CA-M3/5B affect its placement on a PCB?
The SMBJ10CA-M3/5B has no polarity marking and functions identically in both directions, so orientation during placement is irrelevant. Either terminal may connect to the protected line and the other to ground or reference potential - simplifying layout and eliminating risk of reverse installation. This symmetry makes SMBJ10CA-M3/5B ideal for protecting AC-coupled data lines, differential pairs, or floating sensor outputs where voltage polarity reverses during normal operation.
What is the thermal resistance of SMBJ10CA-M3/5B, and how does it impact power dissipation?
The SMBJ10CA-M3/5B 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 value determines steady-state power handling: at 25 °C ambient, its 5.0 W continuous power rating implies a maximum junction temperature of 275 °C - but the device's 150 °C TJ(max) limits usable DC dissipation to ~1.25 W. The SMBJ10CA-M3/5B is intended for transient, not continuous, power absorption.
Can SMBJ10CA-M3/5B be used in parallel to increase surge current handling?
No, SMBJ10CA-M3/5B should not be paralleled for increased IPPM. Minor VBR mismatches between units cause uneven current sharing, leading to premature failure of the lower-breakdown device. For higher surge capacity, select a higher-rated part (e.g., SMBJ15CA-M3/5B) or implement staged protection with upstream current-limiting resistors and downstream TVS devices. The SMBJ10CA-M3/5B datasheet explicitly warns against parallel operation without derating and matching.
SMBJ10CA-M3/5B 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-M3/5B FAQ
1.How can I place an order for SMBJ10CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10CA-M3/5B 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 SMBJ10CA-M3/5B reliable?
The price and inventory of SMBJ10CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ10CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10CA-M3/5B?
SMBJ10CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10CA-M3/5B 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 SMBJ10CA-M3/5B?
For technical support, including SMBJ10CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10CA-M3/5B requirements.
6.How does Aetrix verify that SMBJ10CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ10CA-M3/5B 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 SMBJ10CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ10CA-M3/5B?
All SMBJ10CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10CA-M3/5B, 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 SMBJ10CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ10CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10CA-M3/5B Tags
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