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Vishay General Semiconductor - Diodes Division P4SMA110AHM3/I
- Part No.:
- P4SMA110AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110AHM3/I.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,941
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Product details
Overview
P4SMA110AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 110 V breakdown voltage (VBR = 105–116 V at IT = 1.0 mA), 152 V maximum clamping voltage (VC) at 2.0 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - suitable for automotive-grade ESD and surge protection in sensor interfaces and DC power rails.
For engineers reviewing the P4SMA110AHM3/I datasheet, P4SMA110AHM3/I pinout, P4SMA110AHM3/I application, or P4SMA110AHM3/I equivalent, this device delivers AEC-Q101 qualification, halogen-free RoHS compliance (HM3 suffix), SMA (DO-214AC) package compatibility, and verified clamping performance under repetitive transient stress per IEC 61000-4-5 and ISO 7637-2.
Technical Context
The P4SMA110AHM3/I operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its specified breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling precise, repeatable clamping during fast transients (response time < 1 ns).
Thermally, it supports operation from −65 °C to +150 °C with RθJA = 120 °C/W (on 0.2" × 0.2" copper pads) and is rated for 3.3 W steady-state power dissipation. The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V at 1.0 mA test current - defines reliable conduction onset under transient overvoltage |
| VWM | 94.0 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 152 V at 2.0 A - clamping voltage limiting downstream circuit stress during 10/1000 µs surge |
| PPPM | 400 W - peak pulse power handling capability with standard lightning/surge waveform |
| IFSM | 40 A - single half-sine surge current rating (8.3 ms), supporting high-energy inductive switch-off events |
| Junction Temp | −65 °C to +150 °C - enables deployment in under-hood automotive and industrial environments |
| Package | SMA (DO-214AC) - industry-standard SMD outline with 5.0 mm × 5.0 mm thermal pad footprint |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case with matte tin-plated leads. Cathode indicated by band on body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connects to protected line; conducts surge current to ground when VREV > VBR |
| Anode (unbanded end) | Reference node | Typically tied to system ground or low-impedance return path for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress-test requirements including temperature cycling, HTRB, and ESD |
| Halogen-free & RoHS-compliant (HM3) | Meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability for safety-critical assemblies |
| 400 W peak pulse power (10/1000 µs) | Protects against IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes voltage overshoot across protected ICs, reducing risk of latch-up or gate oxide damage |
| Fast response time (< 1 ns) | Engages before most microsecond-scale transients fully develop, preserving signal integrity |
Applications
| Automotive Sensor Interface Protection | Industrial DC Power Rail Clamping |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp reverse polarity and surge events. Use Value: Maintains signal fidelity below 152 V during 10/1000 µs surges up to 2.0 A while meeting AEC-Q101 reliability requirements. |
Use Scenario: Safeguarding 24 V and 48 V DC power inputs in PLC modules, motor drives, and power supplies against inductive switching spikes. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor absorbing energy from relay coil flyback or contact arcing. Use Value: Limits rail voltage excursion to ≤152 V during 400 W surges, preventing overvoltage shutdown or MOSFET avalanche failure. |
| Telecom Line Card Surge Protection | Consumer Device USB/DC Jack Protection |
Use Scenario: Front-end protection for Ethernet PHYs and PoE injectors exposed to lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Primary clamping device on power and data lines, coordinated with GDT or MOV secondary stages. Use Value: Provides fast, low-capacitance (<100 pF at VWM) suppression without degrading 100BASE-TX signal integrity. |
Use Scenario: Input-stage protection for wall adapters, USB-C PD ports, and battery chargers subject to user-handling ESD and plug-in surges. IC Role / Device Role / Timing Role: First-line defense against ±8 kV contact ESD (IEC 61000-4-2) and 100 V/ms fast transients. Use Value: Delivers sub-1 ns response and 152 V clamping to prevent damage to USB controller ICs and charging ICs. |
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 | Same VBR range (105–116 V), identical SMA package, but rated for 400 W with 10/1000 µs waveform and no AEC-Q101 qualification | Commercial/industrial use only; not validated for automotive temperature cycling or humidity testing | Select SMAJ110A for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
| 1.5SMC110A | Higher power rating (1500 W), DO-214AB (SMC) package - larger footprint (7.11 mm × 6.22 mm) and higher thermal mass | Used where sustained surge energy exceeds 400 W or board layout allows larger SMD footprint | Choose 1.5SMC110A when protecting high-power systems like inverters or telecom rectifiers requiring >1 kW surge margin |
Compared with SMAJ110A and 1.5SMC110A, the P4SMA110AHM3/I uniquely combines AEC-Q101 qualification, halogen-free construction, and compact SMA packaging - making it the preferred choice for space-constrained automotive modules needing certified reliability without PCB redesign.
Availability
P4SMA110AHM3/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial power supply protection, and telecom line card development requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for P4SMA110AHM3/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 passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for fast clamping, low leakage, and robust surge endurance in harsh thermal and electrical environments.
FAQ
What is the clamping voltage of the P4SMA110AHM3/I under a 10/1000 µs surge?
The P4SMA110AHM3/I has a maximum clamping voltage (VC) of 152 V at 2.0 A peak pulse current with a 10/1000 µs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and reflects the upper limit of voltage seen by downstream circuitry during surge events. The P4SMA110AHM3/I maintains this clamping performance across its full operating temperature range.
Is the P4SMA110AHM3/I suitable for automotive applications?
Yes, the P4SMA110AHM3/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction validated for automotive use. It meets stress-test requirements including temperature cycling, high-temperature reverse bias (HTRB), and ESD immunity - making the P4SMA110AHM3/I appropriate for engine control units, ADAS sensors, and infotainment power rails.
What does the "HM3" suffix mean in P4SMA110AHM3/I?
The "HM3" suffix in P4SMA110AHM3/I denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and UL 94 V-0 flammability rating. It also indicates AEC-Q101 qualification and packaging in 13" tape-and-reel (I-type carrier). The P4SMA110AHM3/I is distinct from E3/M3 variants, which lack automotive qualification.
How does the P4SMA110AHM3/I compare to bidirectional TVS diodes?
The P4SMA110AHM3/I is unidirectional and intended for DC-biased lines where reverse polarity protection is required - unlike bidirectional types (e.g., P4SMA110CA) that protect AC or symmetrical signals. Its cathode band must be oriented toward the positive rail. The P4SMA110AHM3/I offers tighter VBR tolerance and lower leakage than equivalent bidirectional devices, optimizing performance in regulated power domains.
What is the thermal resistance of the P4SMA110AHM3/I?
The P4SMA110AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Its junction-to-lead resistance (RθJL) is 30 °C/W. These values enable reliable operation at 3.3 W steady-state dissipation up to +50 °C ambient, provided PCB layout follows Vishay's pad recommendations.
P4SMA110AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, 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):
- 2A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA110AHM3/I FAQ
1.How can I place an order for P4SMA110AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110AHM3/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 P4SMA110AHM3/I reliable?
The price and inventory of P4SMA110AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA110AHM3/I is usually 5 days.
3.What payment methods are accepted for P4SMA110AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110AHM3/I?
P4SMA110AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110AHM3/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 P4SMA110AHM3/I?
For technical support, including P4SMA110AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110AHM3/I requirements.
6.How does Aetrix verify that P4SMA110AHM3/I is sourced from the original manufacturer or authorized distributors?
All P4SMA110AHM3/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 P4SMA110AHM3/I meets industry standards.
7.What is the process for return or replacement of P4SMA110AHM3/I?
All P4SMA110AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110AHM3/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 P4SMA110AHM3/I part is unused and in its original packaging.
Return procedure for P4SMA110AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA110AHM3/I Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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