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Vishay General Semiconductor - Diodes Division SMCJ110CAHE3_A/I
- Part No.:
- SMCJ110CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ110CAHE3_A/I.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,306
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Product details
Overview
SMCJ110CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 1500 W peak pulse power rating, 110 V standoff voltage (VWM), and clamping voltage of 177 V at 8.5 A peak pulse current. It protects sensitive ICs and MOSFETs against inductive switching transients and lightning-induced surges in automotive and industrial power rails.
For engineers reviewing the SMCJ110CAHE3_A/I datasheet, SMCJ110CAHE3_A/I pinout, SMCJ110CAHE3_A/I application, or SMCJ110CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1500 W surge rating, low incremental surge resistance, and compatibility with automated SMT assembly on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical breakdown behavior in both directions due to its bidirectional construction. It exhibits a typical junction temperature range of −55 °C to +150 °C and thermal resistance of 75 °C/W (junction-to-ambient) under standard mounting conditions.
The SMCJ110CAHE3_A/I delivers stable clamping performance with a maximum clamping voltage (VC) of 177 V at IPPM = 8.5 A using a 10/1000 μs waveform, and maintains <1.0 μA reverse leakage at 110 V standoff. Its glass-passivated junction ensures robust reliability and fast response time (<1.0 ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12 V–48 V DC bus systems. |
| VBR min/max | 122 V / 135 V at IT = 1 mA - Verified breakdown threshold ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 177 V at 8.5 A - Clamping voltage limits downstream component stress during 10/1000 μs surge; critical for MOSFET gate-source and IC supply rail protection. |
| PPPM | 1500 W - Peak pulse power handling capacity determines survivability against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω). |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with J-STD-020 MSL level 1 reflow. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per AEC-Q101 Rev D. |
Pinout & Package
SMCJ110CAHE3_A/I uses the SMC (DO-214AB) package: a two-terminal, non-polarized surface-mount case with matte tin-plated leads solderable per J-STD-002. Bidirectional construction means no cathode/anode marking; terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Surge Input / Line Side | Connects to protected line (e.g., CAN_H, 24 V supply rail); accepts bidirectional transient energy from either polarity. |
| Terminal 2 | Surge Return / Ground Reference | Connects to local system ground or return path; completes low-inductance clamping loop essential for sub-10 ns response. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN FD) without polarity concerns. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| 1500 W peak pulse rating | Withstands IEC 61000-4-5 combination wave surges up to 4 kV open-circuit / 2 Ω source impedance without degradation. |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes voltage overshoot during clamping-critical for protecting 130 V-rated components on 110 V nominal systems. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile use without baking, reducing manufacturing complexity. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply inputs in engine control modules against load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary transient shunt element placed directly at connector entry point before DC/DC converter input. Use Value: Limits transient voltage to ≤177 V, preventing damage to downstream 36 V-rated regulators and microcontrollers. |
Use Scenario: Safeguarding analog output lines (4–20 mA) of pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional clamp across signal and return lines to suppress EFT bursts and inductive kickback. Use Value: Maintains signal integrity by clamping transients within ±177 V while adding <0.5 pF parasitic capacitance at 0 V bias. |
| Telecom DC Feeder Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding -48 V DC power feeds in remote radio head units from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage protector mounted at board edge, coordinated with upstream gas discharge tube (GDT). Use Value: Responds in <1 ns to clamp 10/1000 μs surges to 177 V, enabling GDT to handle bulk energy while TVS handles fast rise-time spikes. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in smart home vacuum cleaners. IC Role / Device Role / Timing Role: Parallel-mounted across motor terminals to absorb inductive energy during PWM commutation. Use Value: Absorbs 1500 W peak pulses without failure, extending motor driver MOSFET lifetime and eliminating audible coil whine. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC110CA | Same VWM (110 V) and PPPM (1500 W), but SOD-123FL package (smaller footprint, lower thermal mass). | Limited to lower average power dissipation (PD = 3.0 W vs. 6.5 W); unsuitable for repeated surge duty cycles. | Select SAC110CA only for space-constrained consumer designs with infrequent transients and adequate board-level heat sinking. |
| TPSMD110CA | Identical electrical specs and SMC package, but TI's version lacks AEC-Q101 qualification and has higher VC (185 V). | Not approved for automotive use; clamps 8 V higher than SMCJ110CAHE3_A/I, risking overvoltage stress on 130 V-rated ICs. | Choose TPSMD110CA only for cost-sensitive industrial applications where AEC-Q101 is not required and 185 V clamping is acceptable. |
Compared with SAC110CA and TPSMD110CA, the SMCJ110CAHE3_A/I uniquely combines AEC-Q101 qualification, 6.5 W steady-state power handling, and the lowest clamping voltage (177 V) in its 110 V VWM class-making it the preferred choice for automotive and high-reliability industrial surge protection.
Availability
SMCJ110CAHE3_A/I is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, telecom DC feeder shielding, and consumer appliance motor drive circuits requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ110CAHE3_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 SMCJ series targets high-energy transient suppression in harsh environments-designed specifically for automotive, industrial, and telecom infrastructure where robustness, AEC-Q101 compliance, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of SMCJ110CAHE3_A/I at its rated peak pulse current?
The SMCJ110CAHE3_A/I has a maximum clamping voltage (VC) of 177 V when subjected to its specified peak pulse current (IPPM) of 8.5 A using a 10/1000 μs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCJ110CAHE3_A/I achieves this clamping performance while maintaining low incremental surge resistance, ensuring minimal voltage overshoot beyond the 110 V standoff rating.
Is SMCJ110CAHE3_A/I suitable for automotive applications?
Yes, the SMCJ110CAHE3_A/I is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments with operating junction temperatures up to +150 °C. Its bidirectional architecture, 1500 W surge rating, and validated reliability testing (including temperature cycling and HTRB) make it appropriate for engine control units, body control modules, and ADAS sensor interfaces. The "HE3" suffix confirms RoHS-compliant and AEC-Q101 qualified construction, distinguishing it from commercial-grade variants.
How does the SMCJ110CAHE3_A/I differ from unidirectional SMCJ110A variants?
The SMCJ110CAHE3_A/I is bidirectional, meaning it clamps transients of either polarity symmetrically-ideal for AC-coupled or floating signal lines like CAN or RS-485. In contrast, unidirectional SMCJ110A types have a defined cathode band and conduct only in reverse bias; they cannot protect against positive-going transients on grounded lines. Electrically, both share identical VWM (110 V) and PPPM (1500 W), but the SMCJ110CAHE3_A/I exhibits matched breakdown in both directions (VBR = 122–135 V), whereas SMCJ110A specifies VBR only for reverse bias.
What PCB layout considerations apply to SMCJ110CAHE3_A/I?
For optimal surge performance, the SMCJ110CAHE3_A/I must be mounted on minimum recommended pad layout: 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, per Vishay Document 88394. Short, wide traces to ground and protected line minimize inductance, preserving sub-1 ns response. Thermal relief is discouraged-solid copper connections maximize heat dissipation given its 6.5 W power dissipation rating at TA = 50 °C. Avoid routing sensitive signals near the device body to prevent coupling.
Does SMCJ110CAHE3_A/I require derating at elevated ambient temperatures?
Yes, the SMCJ110CAHE3_A/I requires thermal derating above TA = 25 °C, as shown in Figure 2 of Vishay Document 88394. Its peak pulse power (PPPM) decreases linearly with increasing junction temperature, reaching ~75 % of rated 1500 W at TA = 85 °C under standard mounting. Derating is governed by RθJA = 75 °C/W; designers must calculate actual TJ using PD = 6.5 W and ensure operation remains within −55 °C to +150 °C junction range. For high-temperature applications, additional copper area or thermal vias are recommended.
SMCJ110CAHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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):
- 8.5A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ110CAHE3_A/I FAQ
1.How can I place an order for SMCJ110CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ110CAHE3_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 SMCJ110CAHE3_A/I reliable?
The price and inventory of SMCJ110CAHE3_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 SMCJ110CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ110CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ110CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ110CAHE3_A/I?
SMCJ110CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ110CAHE3_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 SMCJ110CAHE3_A/I?
For technical support, including SMCJ110CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ110CAHE3_A/I requirements.
6.How does Aetrix verify that SMCJ110CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ110CAHE3_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 SMCJ110CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ110CAHE3_A/I?
All SMCJ110CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ110CAHE3_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 SMCJ110CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMCJ110CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ110CAHE3_A/I Tags
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