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Vishay General Semiconductor - Diodes Division P4SMA110AHM3/H
- Part No.:
- P4SMA110AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110AHM3/H.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,151
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Product details
Overview
P4SMA110AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 110 V breakdown voltage (VBR = 105–116 V at 1 mA), 94.0 V maximum standoff voltage (VWM), and clamps transients to ≤152 V at 2.0 A peak pulse current (IPPM) under 10/1000 µs waveform - delivering 400 W peak pulse power capability up to 91 V and 300 W above that threshold. It is AEC-Q101 qualified, halogen-free, RoHS-compliant, and packaged in SMA (DO-214AC) for automotive and industrial power supply protection.
For engineers reviewing the P4SMA110AHM3/H datasheet, P4SMA110AHM3/H pinout, P4SMA110AHM3/H application, or P4SMA110AHM3/H equivalent, this device serves as a high-reliability, low-profile TVS solution for DC power line surge suppression where precise clamping, fast response (<1 ns), and automotive-grade qualification are required.
Technical Context
The P4SMA110AHM3/H operates as a unidirectional avalanche diode with cathode-band polarity marking. Its junction is glass passivated for stable performance and long-term reliability under repetitive surge stress. The device meets MSL Level 1 per J-STD-020 and withstands peak reflow temperatures up to 260 °C.
It delivers 400 W peak pulse power (10/1000 µs) at TA = 25 °C on 0.2" × 0.2" copper pads, derating linearly above 25 °C with RθJA = 120 °C/W. With a maximum clamping voltage of 152 V at IPPM = 2.0 A and reverse leakage <1.0 µA at VWM, it provides tight voltage margin control for 110 V nominal systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V at 1 mA - defines precise avalanche onset range for predictable turn-on during overvoltage events |
| VWM | 94.0 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | ≤152 V at 2.0 A (10/1000 µs) - ensures protected circuitry sees no more than 152 V during worst-case surge |
| PPPM | 300 W above 91 V - sustained energy absorption capacity for industrial-grade transient immunity |
| IR @ VWM | <1.0 µA - negligible standby power loss and minimal loading on sensitive 110 V bias networks |
| TJ max. | +150 °C - enables operation in under-hood automotive and high-ambient industrial environments |
| Package | SMA (DO-214AC) - industry-standard SMD footprint compatible with automated assembly and IPC-7351B land patterns |
Pinout & Package
SMA (DO-214AC) package: surface-mount, molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, cathode indicated by band. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward conduction | Connected to ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Current exit point in forward conduction; avalanche terminal in reverse | Connected to protected line (e.g., 110 V DC input); band-marked end for orientation verification |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics including engine control units and body modules |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-20D, supporting green manufacturing requirements |
| 400 W / 300 W peak pulse rating | Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 110 V DC bus without degradation |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a) |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow assembly without moisture sensitivity concerns |
Applications
| Automotive Power Supply Protection | Industrial DC Power Rail Clamping |
|---|---|
Use Scenario: Protecting 110 V DC battery-fed circuits in commercial vehicle ECUs against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +110 V rail and chassis ground to clamp transients below 152 V. Use Value: Prevents damage to downstream DC-DC converters and microcontrollers during 120 V/200 ms load dump events per ISO 16750-2. |
Use Scenario: Safeguarding programmable logic controller (PLC) analog input modules powered from 110 V DC field supplies. IC Role / Device Role / Timing Role: Standoff protection element absorbing induced lightning surges on 24–110 V auxiliary power inputs. Use Value: Maintains system uptime by limiting voltage excursions to ≤152 V during 1 kV/500 A 10/1000 µs surges per IEC 61000-4-5. |
| Telecom Power Interface Protection | Renewable Energy Charge Controller Input |
Use Scenario: Shielding remote radio head (RRH) power interfaces from induced surges on outdoor 110 V DC feeder lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on -48 V to +110 V hybrid telecom power buses. Use Value: Ensures uninterrupted RF transmission by preventing latch-up or burnout in PMICs during multi-kV EFT bursts. |
Use Scenario: Protecting solar charge controller MOSFET drivers connected to 110 V nominal battery banks in off-grid inverters. IC Role / Device Role / Timing Role: Fast-acting shunt device diverting surge current away from gate drivers and sensing ICs. Use Value: Extends product lifetime by suppressing >1000 V transients from PV array switching and lightning coupling. |
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), but rated for 400 W only up to 91 V; no AEC-Q101 qualification; standard RoHS (not halogen-free) | Limited to commercial-grade industrial equipment; not approved for automotive under-hood use | Select when cost sensitivity outweighs automotive qualification and halogen-free requirements |
| 1.5SMC110A | Higher package thermal mass (DO-214AB), 1500 W peak power rating, but larger footprint and 2× higher RθJA (150 °C/W) | Better suited for high-energy surges in AC mains-derived 110 V DC supplies; incompatible with space-constrained PCB layouts | Choose when surge energy exceeds 300 W and board area permits larger SMC package |
Compared with SMAJ110A and 1.5SMC110A, the P4SMA110AHM3/H uniquely combines AEC-Q101 qualification, halogen-free construction, and SMA footprint - making it the only option among the three qualified for automotive power modules requiring both reliability and regulatory compliance in compact designs.
Availability
P4SMA110AHM3/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC power rails, telecom remote power feeds, and renewable energy charge controllers requiring stable component supply across extended production lifecycles.
Supply support for P4SMA110AHM3/H 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series is engineered for high-volume, high-reliability transient suppression in automotive, industrial, and telecom power systems - prioritizing low clamping voltage, fast response, and robust surge endurance in compact surface-mount packages.
FAQ
What is the maximum clamping voltage of the P4SMA110AHM3/H under standard test conditions?
The P4SMA110AHM3/H has a maximum clamping voltage (VC) of 152 V when subjected to a 10/1000 µs peak pulse current of 2.0 A. This value is measured at TA = 25 °C on specified copper pad layout and defines the upper voltage limit imposed on protected circuitry during surge events. The P4SMA110AHM3/H maintains this clamping performance consistently across its qualified temperature range.
Is the P4SMA110AHM3/H suitable for automotive applications?
Yes, the P4SMA110AHM3/H is AEC-Q101 qualified and specifically designated for automotive use with the "HM3" suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It is validated for under-hood environments with operating junction temperatures up to +150 °C and meets MSL Level 1 reflow requirements - making the P4SMA110AHM3/H appropriate for engine control units, body control modules, and ADAS power supplies.
What does the "HM3" suffix signify in P4SMA110AHM3/H?
The "HM3" suffix in P4SMA110AHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. The "H" indicates 7-inch tape-and-reel packaging (1800 pcs/reel), while "M3" confirms compliance with JEDEC J-STD-20D MSL Level 1 and JESD 201 Class 2 whisker resistance. This distinguishes the P4SMA110AHM3/H from commercial-grade variants like E3 or M3-only parts.
How does the P4SMA110AHM3/H compare to bidirectional TVS diodes in 110 V applications?
The P4SMA110AHM3/H is unidirectional and intended for DC circuits where polarity is fixed - such as +110 V power rails referenced to ground. Bidirectional variants (e.g., P4SMA110CA) would be inappropriate here because they conduct in both directions and lack defined anode/cathode polarity. The P4SMA110AHM3/H provides superior clamping precision and lower leakage for DC protection, whereas bidirectional types serve AC-coupled or floating signal lines.
What is the thermal resistance of the P4SMA110AHM3/H, and how does it affect power handling?
The P4SMA110AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" copper pads. This value determines derating behavior: above 25 °C ambient, its 300 W peak pulse capability decreases linearly, reaching ~210 W at 75 °C. Proper PCB copper area and airflow are essential to sustain the P4SMA110AHM3/H's full surge rating in thermally constrained enclosures.
P4SMA110AHM3/H 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/H FAQ
1.How can I place an order for P4SMA110AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110AHM3/H 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/H reliable?
The price and inventory of P4SMA110AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA110AHM3/H is usually 5 days.
3.What payment methods are accepted for P4SMA110AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110AHM3/H?
P4SMA110AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110AHM3/H 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/H?
For technical support, including P4SMA110AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110AHM3/H requirements.
6.How does Aetrix verify that P4SMA110AHM3/H is sourced from the original manufacturer or authorized distributors?
All P4SMA110AHM3/H 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/H meets industry standards.
7.What is the process for return or replacement of P4SMA110AHM3/H?
All P4SMA110AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110AHM3/H, 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/H part is unused and in its original packaging.
Return procedure for P4SMA110AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA110AHM3/H Tags
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