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Vishay General Semiconductor - Diodes Division SMCJ110CAHE3/9AT
- Part No.:
- SMCJ110CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ110CAHE3/9AT.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,437
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Product details
Overview
SMCJ110CAHE3/9AT from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features 110 V standoff voltage (VWM), 1500 W peak pulse power (PPPM), 177 A peak pulse current (IPPM), and 177 V maximum clamping voltage (VC) at IPPM - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial systems.
For engineers reviewing the SMCJ110CAHE3/9AT datasheet, SMCJ110CAHE3/9AT pinout, SMCJ110CAHE3/9AT application, or SMCJ110CAHE3/9AT equivalent, key selection criteria include bidirectional surge capability, AEC-Q101 qualification, 1500 W transient immunity, low clamping ratio (VC/VWM = 1.61), and compatibility with automated SMT assembly on 8 mm × 8 mm copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while the low incremental surge resistance supports fast energy dissipation during 10/1000 μs transients.
The device is rated for continuous operation from −55 °C to +150 °C junction temperature and meets MSL level 1 per J-STD-020 with 260 °C reflow peak. Its thermal resistance (RθJA = 75 °C/W) and RθJL = 15 °C/W reflect optimized heat transfer through leads under standard PCB mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 122 V / 135 V at IT = 1 mA - verified breakdown range ensuring reliable turn-on margin |
| VC @ IPPM | 177 V - clamped voltage during 1500 W transient, limiting downstream stress |
| PPPM | 1500 W - peak pulse power handling per 10/1000 μs waveform, defining surge robustness |
| ID @ VWM | ≤1.0 μA - ultra-low leakage preserves signal integrity and system quiescent current |
| TJ max | +150 °C - enables use in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 | Qualified - validated for automotive electronics reliability per stress test requirements |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Surge current path | Both terminals function identically; transient current flows either direction with identical VBR and VC |
| Case (cathode band absent) | Mechanical reference | No polarity marking required; eliminates orientation errors during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines, differential buses, or ungrounded sensors without external polarity management |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
| MSL Level 1 rating | Supports standard lead-free reflow without baking or special handling prior to assembly |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converters and microcontrollers. Use Value: Withstands 1500 W surges and clamps to 177 V, preventing damage to downstream 36 V-rated regulators and logic. | Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA, 0–10 V) of PLC I/O modules from field wiring transients. IC Role / Device Role / Timing Role: Bidirectional shunt protector across signal and return lines to suppress common-mode and differential noise. Use Value: Symmetric response ensures equal protection regardless of signal polarity or grounding scheme, reducing BOM count. |
| Telecom Data Line Surge Suppression | Consumer Equipment AC Adapter Input Protection |
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS placed after gas discharge tube (GDT) primary protection. Use Value: Fast response (<1 ns) and low VC limit residual voltage to safe levels for 5 V tolerant transceivers. | Use Scenario: Hardening USB-C PD adapter input stage against EFT and surge events per IEC 61000-4-4/5. IC Role / Device Role / Timing Role: Front-end transient suppressor across AC-DC rectifier output rails. Use Value: 110 V VWM matches typical 100–120 VAC-derived DC bus; RoHS-compliant HE3 suffix satisfies global regulatory requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ110CAHE3/9AT | Lower PPPM (400 W), smaller SMA package, same VWM/VC specs | Suitable only for lower-energy transients; not recommended for automotive load dump | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 contact discharge |
| SMCJ110AHE3/9AT | Unidirectional version; includes cathode band marking; identical VWM, VC, and PPPM | Requires correct polarity placement; unsuitable for AC or floating lines | Choose only if circuit topology guarantees fixed polarity and layout allows orientation control |
Compared with SMCJ110CAHE3/9AT, SMAJ110CAHE3/9AT offers footprint reduction at the cost of 73 % lower surge capacity, while SMCJ110AHE3/9AT trades bidirectionality for identical power handling - making the CA variant optimal for polarity-agnostic, high-energy protection where layout flexibility and reliability are prioritized.
Availability
SMCJ110CAHE3/9AT is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and telecom infrastructure requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SMCJ110CAHE3/9AT 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 and application-specific performance.
The SMCJ series targets high-power transient suppression in harsh environments, engineered specifically for automotive, industrial, and telecom systems demanding >1000 W surge immunity and extended temperature operation.
FAQ
What does the "CA" suffix indicate in SMCJ110CAHE3/9AT?
The "CA" suffix denotes a bidirectional configuration - meaning SMCJ110CAHE3/9AT provides symmetrical clamping in both polarities, unlike unidirectional "A" variants. This eliminates polarity dependency during PCB placement and enables protection of AC signals, differential buses, or floating nodes without external circuitry. The device has identical VBR, VC, and IPPM characteristics in either direction.
Is SMCJ110CAHE3/9AT qualified for automotive use?
Yes, SMCJ110CAHE3/9AT is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code "HE3". This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and accelerated life testing - validating its suitability for under-hood and chassis-mounted automotive electronics where reliability under thermal and mechanical stress is critical.
What is the maximum clamping voltage of SMCJ110CAHE3/9AT during a surge event?
The maximum clamping voltage (VC) of SMCJ110CAHE3/9AT is 177 V when subjected to its rated peak pulse current (IPPM = 177 A) under the standard 10/1000 μs waveform. This value is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during worst-case transient events, ensuring compatibility with 200 V-rated downstream components.
How does the SMC (DO-214AB) package of SMCJ110CAHE3/9AT affect thermal performance?
The SMC (DO-214AB) package of SMCJ110CAHE3/9AT delivers RθJA = 75 °C/W and RθJL = 15 °C/W under standard mounting conditions (0.31″ × 0.31″ copper pads). This enables effective heat dissipation during repetitive surge events and supports sustained operation up to TJ = +150 °C - critical for automotive and industrial applications where ambient temperatures exceed 85 °C.
Can SMCJ110CAHE3/9AT be used in place of a unidirectional TVS like SMCJ110AHE3/9AT?
SMCJ110CAHE3/9AT can replace SMCJ110AHE3/9AT only if the circuit requires bidirectional protection - for example, on AC-coupled lines or floating sensor outputs. However, it is not a direct drop-in substitute in polarity-sensitive designs because the CA version lacks a cathode band marking and exhibits identical behavior in both directions. Layout and schematic review must confirm that polarity independence is acceptable before substitution.
SMCJ110CAHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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)
SMCJ110CAHE3/9AT FAQ
1.How can I place an order for SMCJ110CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ110CAHE3/9AT 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 SMCJ110CAHE3/9AT reliable?
The price and inventory of SMCJ110CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ110CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ110CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ110CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ110CAHE3/9AT?
SMCJ110CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ110CAHE3/9AT 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 SMCJ110CAHE3/9AT?
For technical support, including SMCJ110CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ110CAHE3/9AT requirements.
6.How does Aetrix verify that SMCJ110CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ110CAHE3/9AT 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 SMCJ110CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ110CAHE3/9AT?
All SMCJ110CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ110CAHE3/9AT, 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 SMCJ110CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCJ110CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ110CAHE3/9AT Tags
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