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Vishay General Semiconductor - Diodes Division SMBJ110CAHM3_A/I
- Part No.:
- SMBJ110CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110CAHM3_A/I.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,553
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Product details
Overview
SMBJ110CAHM3_A/I 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 stand-off voltage (VWM), 122–135 V breakdown voltage (VBR) at 1 mA, 177 V maximum clamping voltage (VC) at 3.4 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), deployed on signal lines and power rails in industrial sensor interfaces.
For engineers reviewing the SMBJ110CAHM3_A/I datasheet, SMBJ110CAHM3_A/I pinout, SMBJ110CAHM3_A/I application, or SMBJ110CAHM3_A/I equivalent, this device is selected for high-energy transient suppression in automotive-grade, halogen-free, RoHS-compliant designs requiring AEC-Q101 qualification, low clamping ratio, and MSL Level 1 moisture sensitivity compliance.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the low incremental surge resistance enables rapid energy diversion during ESD or lightning-induced transients.
The device is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 20 °C/W (junction-to-lead), supporting reliable operation under repetitive surge conditions when mounted on recommended 5.0 mm × 5.0 mm copper pads. Its 0.107 %/°C VBR temperature coefficient ensures predictable voltage threshold drift over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR min/max | 122 V / 135 V at 1 mA - Confirmed breakdown threshold window; ensures consistent turn-on across production lots. |
| VC @ IPPM | 177 V at 3.4 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out. |
| ID @ VWM | ≤1.0 µA - Reverse leakage at stand-off voltage; minimizes standby power loss and avoids false triggering. |
| TJ max | +150 °C - Maximum junction temperature rating; enables use in under-hood automotive and high-ambient industrial environments. |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; allows unlimited exposure to ambient conditions prior to reflow. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. Bidirectional construction means no polarity marking; both terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve as interchangeable surge current entry/exit points; no cathode band marking required for bidirectional types. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients common in industrial motor drives and telecom line surges. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including body control modules and infotainment power supplies. |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for global OEM supply chains and end-of-life recycling. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage overshoot during clamping, reducing risk of damage to 120 V-rated components. |
Applications
| Industrial Sensor Signal Protection | Automotive Body Control Module Power Rail |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loops) from inductive switching spikes in factory automation PLCs. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at connector interface to shunt transients before reaching precision ADC or op-amp front-end. Use Value: Limits induced voltage to ≤177 V during 3.4 A surges, preserving signal integrity and preventing latch-up in 12-bit DACs. |
Use Scenario: Safeguarding 12 V supply inputs to BCM microcontrollers against load-dump and jump-start events. IC Role / Device Role / Timing Role: Secondary-level TVS parallel to bulk input capacitor, activated after primary fuse or polyfuse opens. Use Value: Absorbs up to 600 W for 1 ms, maintaining <110 V rail stability during ISO 7637-2 Pulse 5a (load dump) testing. |
| Telecom Line Interface Protection | Consumer Appliance Motor Drive Feedback Path |
Use Scenario: Shielding RS-485 transceiver I/O pins from EFT and surge coupling in building management systems. IC Role / Device Role / Timing Role: Bidirectional clamping element between differential pair and transceiver, referenced to local ground plane. Use Value: Symmetric 122–135 V breakdown ensures equal protection for both A and B lines without polarity misalignment. |
Use Scenario: Securing hall-effect sensor outputs in smart washing machine motor controllers exposed to brush-commutator noise. IC Role / Device Role / Timing Role: Localized TVS at sensor PCB edge, minimizing trace inductance to achieve sub-1 ns response to fast-rising spikes. Use Value: Glass-passivated junction delivers <1 ns response time, clamping 100 V transients before damaging 3.3 V MCU GPIOs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CAHE3_A/I | Same electrical specs, but RoHS-compliant commercial grade (not AEC-Q101 qualified); uses standard tin plating instead of whisker-tested matte tin. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select SMBJ110CAHE3_A/I when cost sensitivity outweighs automotive reliability requirements and halogen-free content is not required. |
| SMAJ110CAHM3_A/I | Lower PPPM (400 W vs. 600 W); same VWM/VBR/VC but reduced surge current handling (2.3 A vs. 3.4 A). | Insufficient for IEC 61000-4-5 Level 4; limited to lower-energy transients in consumer-grade equipment. | Choose SMAJ110CAHM3_A/I only if board space constraints force SMA package adoption and surge threat level is below 2 kV. |
Compared with SMBJ110CAHM3_A/I, SMBJ110CAHE3_A/I offers identical clamping performance without automotive qualification or halogen-free assurance, while SMAJ110CAHM3_A/I trades 33 % peak power capacity for smaller footprint-neither is pin-compatible due to differing package outlines (SMB vs. SMA).
Availability
SMBJ110CAHM3_A/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and telecom line protection requiring stable component supply, full AEC-Q101 traceability, and halogen-free compliance.
Supply support for SMBJ110CAHM3_A/I 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 targets high-reliability transient suppression in harsh environments, with design focus on automotive, industrial, and telecom infrastructure where robustness against repetitive surges and long-term stability are critical.
FAQ
What is the clamping voltage of SMBJ110CAHM3_A/I at its rated peak pulse current?
The SMBJ110CAHM3_A/I has a maximum clamping voltage (VC) of 177 V at its specified peak pulse current (IPPM) of 3.4 A under the 10/1000 µs waveform condition. This value is measured per ANSI/IEEE C62.35 standards and reflects the actual voltage seen by protected circuitry during worst-case surge events. The SMBJ110CAHM3_A/I maintains this clamping performance across its full operating temperature range.
Is SMBJ110CAHM3_A/I suitable for automotive applications?
Yes, SMBJ110CAHM3_A/I is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials, making it suitable for automotive applications such as body control modules, infotainment power supplies, and sensor interfaces. Its MSL Level 1 rating and 150 °C junction temperature capability further support under-hood and cabin deployment. The SMBJ110CAHM3_A/I meets automotive reliability and environmental requirements without derating.
How does the bidirectional configuration of SMBJ110CAHM3_A/I affect its layout and usage?
The bidirectional configuration of SMBJ110CAHM3_A/I eliminates polarity concerns-both terminals are functionally identical, and no cathode marking is present. This simplifies PCB layout for AC-coupled or floating signals (e.g., RS-485, CAN bus stubs) and avoids orientation errors during automated placement. The SMBJ110CAHM3_A/I must be placed symmetrically across the protected node and reference plane, with minimal trace inductance to preserve sub-nanosecond response.
What is the thermal resistance specification for SMBJ110CAHM3_A/I?
The SMBJ110CAHM3_A/I has a typical thermal resistance of 20 °C/W from junction to lead (RθJL) and 100 °C/W from junction to ambient (RθJA) under standard test conditions (mounted on 0.2" × 0.2" copper pads). These values inform heatsinking decisions and duty-cycle limits for repetitive surge events. For sustained operation near TJ max, the SMBJ110CAHM3_A/I benefits from thermal relief via internal copper planes or external thermal vias.
Does SMBJ110CAHM3_A/I require special handling or baking before reflow soldering?
No, SMBJ110CAHM3_A/I is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no dry-packaging, baking, or moisture sensitivity controls prior to reflow. Its molding compound meets UL 94 V-0 flammability rating, and terminals are matte tin-plated for compatibility with standard lead-free reflow profiles peaking at 260 °C. The SMBJ110CAHM3_A/I can be processed directly from tape-and-reel without preconditioning.
SMBJ110CAHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ110CAHM3_A/I FAQ
1.How can I place an order for SMBJ110CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110CAHM3_A/I 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 SMBJ110CAHM3_A/I reliable?
The price and inventory of SMBJ110CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ110CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ110CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110CAHM3_A/I?
SMBJ110CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110CAHM3_A/I 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 SMBJ110CAHM3_A/I?
For technical support, including SMBJ110CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110CAHM3_A/I requirements.
6.How does Aetrix verify that SMBJ110CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ110CAHM3_A/I 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 SMBJ110CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ110CAHM3_A/I?
All SMBJ110CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110CAHM3_A/I, 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 SMBJ110CAHM3_A/I part is unused and in its original packaging.
Return procedure for SMBJ110CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110CAHM3_A/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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