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Vishay General Semiconductor - Diodes Division 1.5SMC110AHE3/9AT
- Part No.:
- 1.5SMC110AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC110AHE3/9AT.pdf
- Description:
- TVS DIODE 94VWM 152VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:6,063
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Product details
Overview
1.5SMC110AHE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 110 V breakdown voltage (VBR = 105–116 V at IT = 1.0 mA), 1500 W peak pulse power (10/1000 µs), and clamping voltage of 152 V at 9.9 A peak pulse current. It protects automotive-grade power rails and signal lines against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5SMC110AHE3/9AT datasheet, 1.5SMC110AHE3/9AT pinout, 1.5SMC110AHE3/9AT application, or 1.5SMC110AHE3/9AT equivalent, this AEC-Q101 qualified TVS offers verified clamping performance, low incremental surge resistance, and RoHS-compliant matte tin-plated leads suitable for automated SMT assembly in harsh-environment electronics.
Technical Context
This unidirectional TVS operates with a standoff voltage (VWM) of 94.0 V and exhibits ≤1.0 µA reverse leakage at that voltage. Its thermal resistance junction-to-ambient is 75 °C/W on standard 8.0 mm × 8.0 mm copper pads, enabling reliable operation up to TJ = 150 °C.
The device features glass-passivated chip junction construction, meets MSL Level 1 per J-STD-020 (260 °C peak reflow), and delivers fast response time (<1 ns) with excellent clamping ratio (VC/VBR ≈ 1.36). It is not bidirectional - polarity is marked by cathode band.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V at 1.0 mA test current - defines precise voltage threshold where avalanche conduction begins |
| VWM | 94.0 V - maximum continuous reverse operating voltage before significant leakage occurs |
| VC @ IPPM | 152 V at 9.9 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak transient power handling capability under standardized surge waveform |
| IPPM | 9.9 A - maximum non-repetitive peak pulse current the device safely clamps |
| TJ max. | 150 °C - maximum junction temperature supporting automotive under-hood deployment |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference in unidirectional TVS configuration | Provides return path during surge conduction; must be routed with low-inductance connection to minimize VL = L·di/dt overshoot |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., 12 V rail, CAN_H) | Marked by visible band; carries full surge current into ground path during transient event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| 1500 W peak pulse power (10/1000 µs) | Withstands high-energy transients common in 12 V/24 V vehicle electrical systems without degradation |
| Clamping voltage ≤152 V at 9.9 A | Ensures protected ICs (e.g., microcontrollers, transceivers) remain below absolute maximum ratings during ISO 7637-2 Pulse 5a events |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or baking |
| Glass-passivated junction | Enhances long-term stability and moisture resistance in humid or thermally cycled environments |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground, conducting only during overvoltage events. Use Value: Clamps transients to ≤152 V, preventing damage to 36 V-rated DC-DC converters and MCU power supplies. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Standoff protection element on 4–20 mA loop or 0–10 V output lines exposed to ESD and cable discharge. Use Value: Sub-1 ns response ensures no transient energy couples into precision ADC front-ends, preserving measurement integrity. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding Ethernet PHY power pins and auxiliary rails in outdoor telecom base station line cards. IC Role / Device Role / Timing Role: Primary overvoltage clamp on +3.3 V/+5 V supply nets subject to lightning-induced surges via shared chassis ground. Use Value: 1500 W rating handles multiple 10/1000 µs surges without parameter shift, supporting Telcordia GR-1089-CORE compliance. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., washing machine control boards). IC Role / Device Role / Timing Role: Freewheeling path across motor terminals or across H-bridge MOSFET drains. Use Value: Low clamping voltage (152 V) prevents MOSFET avalanche failure while maintaining fast recovery for high-duty-cycle operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A-E3/52T | Same VBR range (105–116 V), but lower PPPM = 600 W and SMB package (smaller footprint, higher RθJA = 90 °C/W) | Best suited for space-constrained consumer PCBs where surge energy is limited to <600 W | Select when board area is critical and surge threat level is moderate (e.g., IEC 61000-4-5 Level 3) |
| 1.5KE110A | Through-hole DO-201 package, identical VBR/VC specs, but slower thermal response and no AEC-Q101 qualification | Used in legacy industrial power supplies where manual assembly or high-reliability through-hole mounting is required | Choose only for non-automotive, non-SMT designs where rework tolerance and mechanical robustness outweigh surface-mount advantages |
Compared with SMBJ110A-E3/52T and 1.5KE110A, the 1.5SMC110AHE3/9AT uniquely combines AEC-Q101 qualification, 1500 W surge capacity, and SMC package thermal performance - making it the preferred choice for new automotive and high-reliability industrial designs requiring both high energy handling and production scalability.
Availability
1.5SMC110AHE3/9AT is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom line card surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC110AHE3/9AT 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, efficiency, and application-specific optimization.
The 1.5SMC Series was designed specifically for high-power transient suppression in automotive, industrial, and telecom systems - delivering robust clamping performance in compact SMC packages with AEC-Q101 and RoHS compliance built-in.
FAQ
What is the clamping voltage of the 1.5SMC110AHE3/9AT under a 10/1000 µs surge?
The 1.5SMC110AHE3/9AT clamps to a maximum of 152 V when subjected to its rated peak pulse current of 9.9 A under the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88303 and ensures downstream components remain within safe operating limits during surge events. The 1.5SMC110AHE3/9AT achieves this with low incremental surge resistance and fast avalanche response.
Is the 1.5SMC110AHE3/9AT suitable for automotive applications?
Yes, the 1.5SMC110AHE3/9AT is AEC-Q101 qualified and explicitly designated for automotive use with suffix "HE3", indicating RoHS-compliant and automotive-grade reliability. It supports operation from −65 °C to +150 °C and passes stress tests including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101. The 1.5SMC110AHE3/9AT is commonly deployed in engine control modules, body control units, and ADAS sensor interfaces.
What does the "9AT" suffix mean in 1.5SMC110AHE3/9AT?
The "9AT" suffix indicates packaging: 13-inch diameter plastic tape and reel, with 3500 units per reel. This format supports high-volume automated SMT placement and is compatible with industry-standard pick-and-place equipment. The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification, while "A" denotes unidirectional configuration. The 1.5SMC110AHE3/9AT is not a bidirectional device - polarity is marked by cathode band.
How does the 1.5SMC110AHE3/9AT compare to the 1.5SMC110CA variant?
The 1.5SMC110AHE3/9AT is unidirectional with cathode band marking and 94.0 V standoff voltage, whereas the 1.5SMC110CA is bidirectional with symmetric clamping in both directions and 94.0 V standoff per polarity. The 1.5SMC110AHE3/9AT is used where polarity is known and ground-referenced protection is needed (e.g., power rail); the CA version suits AC-coupled or floating signal lines. They share identical package, power rating, and AEC-Q101 status, but differ in circuit topology and marking.
What is the thermal resistance of the 1.5SMC110AHE3/9AT, and how does it affect layout?
The 1.5SMC110AHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C under sustained 6.5 W dissipation, PCB layout must provide adequate copper area and thermal vias. Reducing pad size increases RθJA, risking thermal runaway during repetitive surges. The 1.5SMC110AHE3/9AT requires adherence to Vishay's recommended pad layout in Document 88303 for rated performance.
1.5SMC110AHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 9.9A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC110AHE3/9AT FAQ
1.How can I place an order for 1.5SMC110AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC110AHE3/9AT 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 1.5SMC110AHE3/9AT reliable?
The price and inventory of 1.5SMC110AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC110AHE3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC110AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC110AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC110AHE3/9AT?
1.5SMC110AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC110AHE3/9AT 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 1.5SMC110AHE3/9AT?
For technical support, including 1.5SMC110AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC110AHE3/9AT requirements.
6.How does Aetrix verify that 1.5SMC110AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC110AHE3/9AT 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 1.5SMC110AHE3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC110AHE3/9AT?
All 1.5SMC110AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC110AHE3/9AT, 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 1.5SMC110AHE3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC110AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC110AHE3/9AT Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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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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Toshiba Semiconductor and Storage
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Diodes Incorporated
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