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Vishay General Semiconductor - Diodes Division P4SMA110AHM3_A/I
- Part No.:
- P4SMA110AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110AHM3_A/I.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,942
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Product details
Overview
P4SMA110AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, rated for 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 (IPPM), and 400 W peak pulse power (10/1000 µs waveform). It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges in automotive and industrial power rails.
For engineers reviewing the P4SMA110AHM3_A/I datasheet, P4SMA110AHM3_A/I pinout, P4SMA110AHM3_A/I application, or P4SMA110AHM3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 120 °C/W), halogen-free RoHS compliance, and real-world clamping behavior under standardized surge conditions.
Technical Context
The P4SMA110AHM3_A/I operates as a unidirectional avalanche diode with cathode-band polarity marking, leveraging glass-passivated junction technology for stable breakdown and low incremental surge resistance. Its clamping action begins at VWM = 94.0 V (stand-off voltage), limiting transient overvoltage to ≤152 V at 2.0 A IPPM, while maintaining <1.0 µA reverse leakage at VWM.
Designed for surface-mount assembly on 5.0 mm × 5.0 mm copper pads per terminal, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and supports repetitive surge duty cycles up to 0.01% - delivering 300 W peak pulse power above 91 V per specification note (1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 105 V / 116 V at 1.0 mA test current - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 94.0 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 152 V at 2.0 A - clamped voltage during 10/1000 µs surge, directly limiting stress on downstream components |
| PPPM | 400 W (≤91 V), 300 W (>91 V) - peak transient energy absorption capability under standard waveform |
| RθJA | 120 °C/W - junction-to-ambient thermal resistance determines derating requirements for sustained power dissipation |
| TJmax | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground or low-side rail | Enables unidirectional clamping from cathode to anode during positive transients on cathode side |
| Cathode | Current exit point in forward bias; marked with band; connects to line under protection | Acts as high-side transient sink - absorbs surge energy when line voltage exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Supports robust protection of 12 V/24 V automotive power nets against ISO 7637-2 Pulse 1/2a/5a surges without derating |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive electronics including engine control units, body controllers, and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green manufacturing |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), improving protection margin for sensitive ICs |
| MSL Level 1 moisture sensitivity | Allows direct placement without baking; compatible with standard SMT reflow profiles up to 260 °C peak |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (ISO 7637-2 Pulse 5a) on 12 V battery-fed ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input stage of voltage regulator or microcontroller power supply. Use Value: Clamps 120 V/200 ms surge to ≤152 V, preventing regulator latch-up and preserving system uptime. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector interface to shunt transients before reaching ADC input. Use Value: Limits induced voltage to <152 V within nanoseconds, avoiding ADC saturation and data corruption. |
| Telecom DC Power Input Protection | Consumer Device USB/DC Jack Protection |
|
Use Scenario: Guarding PoE-powered switch ports against lightning-induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary TVS on DC input rail upstream of DC-DC converter and isolation circuitry. Use Value: Absorbs 300 W surge energy without degradation, maintaining >94 V stand-off for normal operation. |
Use Scenario: Protecting USB-C PD adapter inputs from accidental AC mains misconnection or surge coupling. IC Role / Device Role / Timing Role: First-line unidirectional clamp on 20 V input path before buck controller and gate drivers. Use Value: Prevents catastrophic failure of primary FETs by clamping 110 V transients to safe levels below 152 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110AHE3_A/H | Same VBR range (105–116 V), but SMB (DO-214AA) package - 20% larger footprint, RθJA = 100 °C/W | Better thermal performance in high-power-density layouts; less suitable for ultra-compact PCBs | Select when higher surge repetition rate or lower thermal resistance is required over space-constrained mounting |
| 1.5SMC110A | Same electrical specs, but SMC (DO-214AB) package - 30% larger than SMA, RθJA = 85 °C/W, 1500 W PPPM | Higher peak power rating enables single-device protection for 48 V telecom systems with stricter surge margins | Choose for legacy designs using SMC footprints or where 1500 W surge handling is mandated by system-level standards |
Compared with SMBJ110AHE3_A/H and 1.5SMC110A, the P4SMA110AHM3_A/I offers optimal balance of compact SMA footprint, AEC-Q101 qualification, halogen-free compliance, and sufficient 400 W surge capacity for cost-sensitive automotive and industrial modules where board area is constrained.
Availability
P4SMA110AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom DC power inputs, and consumer USB-C adapter protection requiring stable component supply and long-term lifecycle support.
Supply support for P4SMA110AHM3_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, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The P4SMA Series targets surface-mount transient suppression in space-constrained, high-reliability applications - engineered for automotive, industrial, and telecom systems demanding AEC-Q101 qualification and consistent clamping performance across temperature.
FAQ
What is the clamping voltage of the P4SMA110AHM3_A/I at its rated peak pulse current?
The P4SMA110AHM3_A/I has a maximum clamping voltage (VC) of 152 V at 2.0 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured with the device mounted on 5.0 mm × 5.0 mm copper pads per terminal and represents the upper limit of voltage seen by downstream circuitry during a defined transient event. The P4SMA110AHM3_A/I maintains this clamping performance across its full operating temperature range.
Is the P4SMA110AHM3_A/I qualified for automotive applications?
Yes, the P4SMA110AHM3_A/I is AEC-Q101 qualified, as indicated by the "HM3" suffix - denoting halogen-free, RoHS-compliant, and automotive-grade reliability testing. It undergoes stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per AEC-Q101 Rev D. The P4SMA110AHM3_A/I is approved for use in engine control units, body electronics, and ADAS sensor interfaces where transient immunity and long-term stability are critical.
What does the "_A/I" suffix mean in P4SMA110AHM3_A/I?
The "_A/I" suffix in P4SMA110AHM3_A/I specifies two key attributes: "A" indicates the device belongs to the AEC-Q101 qualified variant group (for P4SMA6.8A to P4SMA220A), and "I" denotes packaging in 13-inch diameter plastic tape and reel, with a base quantity of 7500 units. This format ensures automated SMT placement compatibility and traceable lot control for high-volume production of the P4SMA110AHM3_A/I.
How does the P4SMA110AHM3_A/I differ from the non-automotive P4SMA110A variant?
The P4SMA110AHM3_A/I differs from the commercial-grade P4SMA110A in three verified ways: it carries AEC-Q101 qualification (HM3 suffix), uses halogen-free molding compound, and is supplied in 13″ tape-and-reel (I) rather than standard 7″ (H). Electrically, both share identical VBR, VWM, VC, and PPPM specs - but only the P4SMA110AHM3_A/I is certified for automotive deployment per industry stress-test requirements.
What is the thermal resistance of the P4SMA110AHM3_A/I, and how does it affect layout design?
The P4SMA110AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on minimum recommended pad layout (0.2″ × 0.2″ copper pads). This value dictates derating curves - for example, at 75 °C ambient, its power dissipation must be reduced to ~1.8 W to maintain TJ ≤ 150 °C. Layouts should use generous copper pour on both sides connected via vias to maximize heat spreading, especially in automotive under-hood applications where the P4SMA110AHM3_A/I operates near thermal limits.
P4SMA110AHM3_A/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:
- Active
- 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_A/I FAQ
1.How can I place an order for P4SMA110AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110AHM3_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 P4SMA110AHM3_A/I reliable?
The price and inventory of P4SMA110AHM3_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 P4SMA110AHM3_A/I is usually 5 days.
3.What payment methods are accepted for P4SMA110AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110AHM3_A/I?
P4SMA110AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110AHM3_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 P4SMA110AHM3_A/I?
For technical support, including P4SMA110AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110AHM3_A/I requirements.
6.How does Aetrix verify that P4SMA110AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA110AHM3_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 P4SMA110AHM3_A/I meets industry standards.
7.What is the process for return or replacement of P4SMA110AHM3_A/I?
All P4SMA110AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110AHM3_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 P4SMA110AHM3_A/I part is unused and in its original packaging.
Return procedure for P4SMA110AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA110AHM3_A/I Tags
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