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Vishay General Semiconductor - Diodes Division SMBJ110CA-M3/5B
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- Part No.:
- SMBJ110CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110CA-M3/5B.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,614
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Product details
Overview
SMBJ110CA-M3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 110 V standoff voltage (VWM), 122–135 V breakdown range (VBR at 1 mA), 177 V maximum clamping voltage (VC) at 3.4 A peak pulse current, and 600 W peak pulse power (10/1000 µs waveform). It is widely deployed to protect MOSFETs, ICs, and sensor signal lines in industrial motor drives and telecom power interfaces.
For engineers reviewing the SMBJ110CA-M3/5B datasheet, SMBJ110CA-M3/5B pinout, SMBJ110CA-M3/5B application, or SMBJ110CA-M3/5B equivalent, key selection considerations include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.44), halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT placement on PCBs requiring IEC 61000-4-5 surge immunity.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior during positive and negative transients - critical for AC-coupled signal lines and ungrounded bus protection. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and repeatable breakdown characteristics over temperature (-55 °C to +150 °C).
The device uses a planar silicon avalanche structure optimized for fast response (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges (IEC 61000-4-5). Its MSL Level 1 rating supports lead-free reflow up to 260 °C without popcorn cracking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 110 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 122–135 V at 1 mA - Guaranteed avalanche initiation range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 177 V at 3.4 A (10/1000 µs) - Peak voltage seen by protected circuit during rated surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Maximum transient energy absorption capability under standardized 10/1000 µs waveform; validates surge robustness. |
| IPPM (Peak Pulse Current) | 3.4 A - Corresponding surge current at VC; used to size PCB trace widths and verify system-level surge path integrity. |
| Junction Temperature Range | -55 °C to +150 °C - Enables deployment in harsh environments including industrial controls and outdoor telecom equipment. |
| Package | SMB (DO-214AA) - Standardized 2-pin SMD outline with 5.59 mm × 4.06 mm footprint; compatible with JEDEC MS-012AC and automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - both terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical avalanche behavior in either direction; connects across protected line and return (e.g., RS-485 A/B, Ethernet pairs, AC power rails). |
| Cathode Band (absent) | Polarity indicator | Not present on bidirectional variants - confirms non-polarized installation; eliminates risk of reverse orientation during assembly. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or floating differential buses without external polarity management. |
| 600 W peak pulse power (10/1000 µs) | Validated against IEC 61000-4-5 Level 3 (1 kV line-to-line, 2 kV line-to-earth) surge requirements. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration standards and supports environmentally regulated industrial OEM programs. |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and enables standard lead-free assembly without baking or special handling. |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes voltage overshoot during clamping, reducing stress on 120 V-rated downstream ICs and gate drivers. |
Applications
| Industrial Motor Drives | Telecom Power Interfaces |
|---|---|
|
Use Scenario: Protection of gate driver inputs and feedback sensing lines against switching-induced voltage spikes in 3-phase inverters. IC Role / Device Role / Timing Role: Bidirectional TVS placed across isolated gate drive transformer secondaries or current-sense amplifier inputs. Use Value: Limits transient excursions to ≤177 V, preventing latch-up or permanent damage to 200 V-rated SiC gate drivers and precision op-amps. |
Use Scenario: Surge suppression on -48 V DC telecom power distribution boards exposed to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Parallel-connected TVS between power rail and chassis ground to shunt common-mode surges. Use Value: Absorbs 600 W surges without degradation, maintaining <1 µA leakage at nominal -48 V operation and ensuring long-term reliability. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
|
Use Scenario: Input protection for LIN bus transceivers and load switch controllers subjected to ISO 7637-2 pulse 1 and pulse 2a transients. IC Role / Device Role / Timing Role: Bidirectional clamp across LIN data line and local ground to suppress coupled supply noise and load dump coupling. Use Value: Responds in <1 ns to clamp pulses up to 100 V, preserving signal integrity while meeting AEC-Q101 qualification via HM3 variant lineage. |
Use Scenario: Protection of analog outputs (4–20 mA, 0–10 V) in programmable logic controller (PLC) analog I/O modules. IC Role / Device Role / Timing Role: TVS placed across output terminals to prevent field-wiring faults (e.g., accidental 24 V short) from damaging DACs and current sources. Use Value: Clamps fault voltage to 177 V before fuse interruption, allowing safe shutdown without component destruction or calibration drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA-E3/5B | RoHS-compliant but not halogen-free; same electrical specs and SMB package. | Preferred for commercial-grade applications where halogen content is unrestricted. | Select when cost optimization is prioritized and halogen-free certification is not required by end-customer specifications. |
| SMLJ110CA-M3 | Higher 1500 W peak pulse power; larger SMC (DO-214AB) package; otherwise identical VWM, VBR, and VC. | Suitable where higher surge margin is needed and board space allows larger footprint. | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and PCB layout accommodates 7.11 mm × 6.22 mm SMC outline. |
Compared with SMBJ110CA-E3/5B, the M3 version adds halogen-free compliance without performance trade-offs; versus SMLJ110CA-M3, the SMBJ offers identical protection in a 30% smaller footprint but with lower 600 W surge rating - making it optimal for space-constrained industrial and telecom designs requiring certified green materials.
Availability
SMBJ110CA-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom power interfaces, automotive body control modules, and PLC analog I/O requiring stable component supply across multi-year production cycles.
Supply support for SMBJ110CA-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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMBJ series targets high-volume industrial and automotive transient protection, engineered for automated manufacturing, extended temperature operation, and compliance with international surge immunity standards.
FAQ
What is the clamping voltage of SMBJ110CA-M3/5B at its rated peak pulse current?
The SMBJ110CA-M3/5B has a maximum clamping voltage (VC) of 177 V at 3.4 A peak pulse current under the 10/1000 µs waveform. This value is measured per IEC 61000-4-5 test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ110CA-M3/5B maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ110CA-M3/5B suitable for bidirectional signal line protection?
Yes, SMBJ110CA-M3/5B is explicitly designed as a bidirectional TVS diode, with symmetrical breakdown and clamping characteristics in both polarities. It is commonly applied across differential interfaces such as RS-485, CAN FD physical layers, and Ethernet PHY lines where polarity-agnostic surge suppression is required. The SMBJ110CA-M3/5B requires no orientation during placement due to its unmarked, non-polarized SMB package.
Does SMBJ110CA-M3/5B meet automotive qualification standards?
The base SMBJ110CA-M3/5B is commercial-grade and not AEC-Q101 qualified; however, it shares the same die and construction as the AEC-Q101-qualified HM3 variants (e.g., SMBJ110CAHM3_B/I). For automotive applications requiring formal qualification, the HM3-suffixed versions must be specified. The SMBJ110CA-M3/5B itself is widely used in non-safety-critical automotive subsystems where qualification is not mandated.
What is the thermal resistance of SMBJ110CA-M3/5B from junction to ambient?
The typical junction-to-ambient thermal resistance (RθJA) of SMBJ110CA-M3/5B is 100 °C/W when mounted on the minimum recommended copper pad layout (0.2" × 0.2" per terminal). This value assumes still air conditions and informs derating calculations for sustained power dissipation. For higher-power applications, the SMBJ110CA-M3/5B's RθJL of 20 °C/W supports localized heat sinking via PCB copper pours connected to its leads.
How does the M3 suffix affect the environmental compliance of SMBJ110CA-M3/5B?
The M3 suffix indicates that SMBJ110CA-M3/5B is halogen-free and RoHS-compliant, meeting IPC-1752A material declaration requirements and EU Directive 2011/65/EU Annex II. Unlike the E3 variant, M3 devices contain no brominated flame retardants or chlorine-based compounds in the molding compound or plating. This makes SMBJ110CA-M3/5B suitable for green electronics programs in industrial and telecom OEMs with strict substance restrictions.
SMBJ110CA-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):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 3.4A
- 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)
SMBJ110CA-M3/5B FAQ
1.How can I place an order for SMBJ110CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110CA-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 SMBJ110CA-M3/5B reliable?
The price and inventory of SMBJ110CA-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 SMBJ110CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ110CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110CA-M3/5B?
SMBJ110CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110CA-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 SMBJ110CA-M3/5B?
For technical support, including SMBJ110CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110CA-M3/5B requirements.
6.How does Aetrix verify that SMBJ110CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ110CA-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 SMBJ110CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ110CA-M3/5B?
All SMBJ110CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110CA-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 SMBJ110CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ110CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110CA-M3/5B Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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