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Vishay General Semiconductor - Diodes Division SMCJ110AHE3_A/I
- Part No.:
- SMCJ110AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ110AHE3_A/I.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,607
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Product details
Overview
SMCJ110AHE3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 110 V standoff voltage (VWM), 177 V clamping voltage (VC) at 8.5 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM). It protects MOSFETs, ICs, and sensor signal lines in automotive power systems and industrial control interfaces.
For engineers reviewing the SMCJ110AHE3_A/I datasheet, SMCJ110AHE3_A/I pinout, SMCJ110AHE3_A/I application, or SMCJ110AHE3_A/I equivalent, key selection criteria include clamping performance under 10/1000 µs transients, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 122–135 V breakdown range (VBR) at 1 mA test current. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), enabling suppression of ESD and lightning-induced surges before downstream components are damaged.
Designed for surface-mount use on PCBs with minimum pad layout per JEDEC DO-214AB, it delivers 1500 W peak pulse power handling with low incremental surge resistance and meets MSL level 1 (260 °C reflow peak). The HE3 suffix confirms RoHS compliance and AEC-Q101 qualification for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 110 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V–48 V bus systems. |
| VBR (Breakdown Voltage) | 122–135 V at 1 mA - Avalanche onset range; ensures predictable turn-on during overvoltage events without premature conduction. |
| VC (Clamping Voltage) | 177 V at IPPM = 8.5 A - Peak voltage seen by protected circuit during 10/1000 µs surge; determines maximum stress on downstream ICs. |
| PPPM (Peak Pulse Power) | 1500 W - Energy-handling capability under standardized 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 surge immunity. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on recommended 8.0 mm × 8.0 mm copper pads; enables thermal design for sustained 6.5 W power dissipation at TA = 50 °C. |
| TJ max. | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments and industrial enclosures. |
| Polarity | Unidirectional - Cathode marked with band; blocks forward current above ~3.5 V (VF at 100 A), conducts only in reverse avalanche mode. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); carries surge current during reverse clamping. |
| Cathode | Avalanche clamping terminal | Marked with band; connected to protected line (e.g., 110 V rail); initiates avalanche breakdown when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) across temperature and lifetime, critical for long-term reliability in automotive ECUs. |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces per stress test requirements. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving clamping precision for sensitive 3.3 V/5 V logic interfaces. |
| MSL level 1 rating | Supports standard lead-free reflow profiles up to 260 °C peak without moisture-related damage during assembly. |
| 1500 W peak pulse power | Meets IEC 61000-4-5 surge immunity requirements for industrial equipment and telecom infrastructure ports. |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V supply rails in engine control units against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp absorbing >100 V spikes while maintaining low leakage during normal operation. Use Value: Prevents latch-up or gate oxide damage in microcontrollers and power MOSFETs exposed to ISO 7637-2 Pulse 5a/b surges. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) from ESD and field wiring faults in factory automation. IC Role / Device Role / Timing Role: Fast-response surge shunt placed directly at connector entry point to limit transient energy entering signal conditioning circuitry. Use Value: Maintains signal integrity below 177 V clamping threshold, preserving ADC accuracy and preventing op-amp saturation. |
| Telecom DC Power Input | Consumer Device USB/DC Jack Protection |
Use Scenario: Safeguarding primary-side DC-DC converters in base station power supplies subjected to lightning-induced surges on -48 V input. IC Role / Device Role / Timing Role: High-power unidirectional clamp rated for 1500 W pulses, placed upstream of rectifier and filter stages. Use Value: Enables compliance with ITU-T K.20/21 immunity standards without derating or parallel device stacking. | Use Scenario: Protecting internal 5 V/9 V/12 V DC input circuits in smart home hubs and set-top boxes from user-insertion surges and AC adapter faults. IC Role / Device Role / Timing Role: Standoff-rated TVS (110 V) used on secondary-side DC input to avoid false triggering during normal operation. Use Value: Provides robust 177 V clamping without affecting efficiency or standby current due to sub-µA leakage at 110 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ110A-E3/57T | Lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W), same VWM/VBR/VC ratings. | Suitable for space-constrained consumer designs with lower surge threat levels; not rated for AEC-Q101. | Select when board area is limited and automotive qualification is unnecessary. |
| SMCJ110CAHE3_A/I | Bidirectional variant (symmetrical clamping), identical VWM/VBR/VC/PPPM, same AEC-Q101 qualification and package. | Required for AC-coupled or floating signal lines where polarity reversal occurs (e.g., RS-485, CAN FD data lines). | Choose for bidirectional protection needs; otherwise SMCJ110AHE3_A/I offers optimized unidirectional performance. |
Compared with SMAJ110A-E3/57T, SMCJ110AHE3_A/I delivers 3.75× higher surge power handling and automotive qualification; versus SMCJ110CAHE3_A/I, it provides superior clamping efficiency for DC-biased rails due to absence of reverse conduction path.
Availability
SMCJ110AHE3_A/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, telecom DC input hardening, and consumer device DC jack safeguarding requiring stable component supply and full traceability.
Supply support for SMCJ110AHE3_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, power efficiency, and automotive-grade validation.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications demanding AEC-Q101 qualification and 1500 W surge capability.
FAQ
What is the clamping voltage of SMCJ110AHE3_A/I at its rated peak pulse current?
The SMCJ110AHE3_A/I has a maximum clamping voltage (VC) of 177 V at its specified peak pulse current (IPPM) of 8.5 A under a 10/1000 µs waveform. This value is measured with the device mounted on 8.0 mm × 8.0 mm copper pads per the datasheet's thermal test condition, ensuring realistic system-level protection performance for SMCJ110AHE3_A/I in high-surge applications.
Is SMCJ110AHE3_A/I qualified for automotive use?
Yes, SMCJ110AHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its ordering code and explicit notation in Vishay's datasheet revision 09-Jan-2024. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, making SMCJ110AHE3_A/I suitable for under-hood and chassis-mounted automotive electronics where reliability under thermal and mechanical stress is critical.
What does the "_A/I" suffix mean in SMCJ110AHE3_A/I?
The "_A/I" suffix in SMCJ110AHE3_A/I indicates packaging and reel configuration: "A" denotes the revision code (document revision A), and "I" specifies 13-inch diameter plastic tape and reel delivery containing 3500 units. This matches Vishay's ordering information table, where SMCJ110AHE3_A/I is explicitly listed with unit weight 0.211 g and delivery mode "13\" diameter plastic tape and reel" - confirming full traceability and standard SMT handling for SMCJ110AHE3_A/I.
How does the thermal resistance of SMCJ110AHE3_A/I affect its power handling?
SMCJ110AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 8.0 mm × 8.0 mm copper pads. At ambient temperature of 50 °C, this allows continuous power dissipation up to 6.5 W - sufficient for managing residual leakage and repetitive low-energy transients without exceeding the +150 °C maximum junction temperature, thereby sustaining long-term reliability of SMCJ110AHE3_A/I in thermally constrained layouts.
Can SMCJ110AHE3_A/I be used in bidirectional signal lines like RS-485?
No, SMCJ110AHE3_A/I is unidirectional and unsuitable for bidirectional signal lines such as RS-485 or CAN, where voltage polarity reverses during normal operation. For those applications, the bidirectional variant SMCJ110CAHE3_A/I - with symmetrical clamping in both directions and identical electrical ratings - must be used instead. Using SMCJ110AHE3_A/I on bidirectional lines would result in forward conduction and potential damage during negative half-cycles, compromising protection integrity for SMCJ110AHE3_A/I.
SMCJ110AHE3_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:
- 1
- Bidirectional Channels:
- -
- 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)
SMCJ110AHE3_A/I FAQ
1.How can I place an order for SMCJ110AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ110AHE3_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 SMCJ110AHE3_A/I reliable?
The price and inventory of SMCJ110AHE3_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 SMCJ110AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ110AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ110AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ110AHE3_A/I?
SMCJ110AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ110AHE3_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 SMCJ110AHE3_A/I?
For technical support, including SMCJ110AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ110AHE3_A/I requirements.
6.How does Aetrix verify that SMCJ110AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ110AHE3_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 SMCJ110AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ110AHE3_A/I?
All SMCJ110AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ110AHE3_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 SMCJ110AHE3_A/I part is unused and in its original packaging.
Return procedure for SMCJ110AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ110AHE3_A/I Tags
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Diodes Incorporated
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