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Vishay General Semiconductor - Diodes Division P4SMA110CAHE3/5A
- Part No.:
- P4SMA110CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110CAHE3/5A.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,428
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Product details
Overview
P4SMA110CAHE3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal or power lines. It features a 94.0 V standoff voltage (VWM), 105–116 V breakdown voltage (VBR) at 1 mA, 152 V maximum clamping voltage (VC) at 2.0 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 μs waveform - suitable for protecting automotive sensor interfaces and industrial I/O lines.
For engineers reviewing the P4SMA110CAHE3/5A datasheet, P4SMA110CAHE3/5A pinout, P4SMA110CAHE3/5A application, or P4SMA110CAHE3/5A equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMA (DO-214AC) package compatibility, and thermal derating behavior above 25 °C ambient.
Technical Context
This device operates as a voltage-clamping protector in both polarities, leveraging an avalanche junction to divert transient energy away from downstream circuitry. Its bidirectional symmetry ensures identical electrical characteristics in forward and reverse directions, with no polarity marking required on the SMA package.
It delivers 400 W peak pulse power (10/1000 μs) up to 91 V and 300 W above 91 V, with a low 152 V clamping voltage at 2.0 A IPPM and 0.107 %/°C temperature coefficient of VBR - enabling stable overvoltage protection across automotive-grade temperature ranges (−65 °C to +150 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 94.0 V - Maximum continuous working voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 105–116 V at 1 mA - Confirmed avalanche initiation range; ensures reliable turn-on during transients without premature leakage. |
| VC (Clamping) | 152 V at IPPM = 2.0 A - Measured peak voltage across device during 10/1000 μs surge; directly limits stress on protected ICs. |
| PPPM | 400 W (≤91 V), 300 W (>91 V) - Peak pulse power handling per 10/1000 μs waveform; determines survivability against common ESD/lightning surges. |
| ID (Leakage) | 1.0 μA max at VWM - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive and industrial environments. |
| AEC-Q101 | Qualified - Validated for automotive reliability including temperature cycling, HTRB, and ESD; enables use in ASIL-B compatible systems. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Matte tin-plated leads, MSL Level 1, RoHS-compliant and halogen-free (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (reverse polarity) | One terminal of symmetrical PN junction; accepts surge current in either direction during bidirectional clamping. |
| Cathode | Transient current entry (forward polarity) | Second terminal of symmetrical PN junction; completes low-impedance path to ground or rail during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware layout in differential or AC-coupled signal paths. |
| AEC-Q101 qualification | Validated for automotive under-hood applications including temperature cycling, HTRB, and ESD - supports functional safety requirements without additional qualification effort. |
| 400 W peak pulse power | Robust surge handling per 10/1000 μs waveform - meets IEC 61000-4-5 Level 3 (1 kV line-to-line, 2 kV line-to-ground) when properly mounted. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Efficient voltage limiting with minimal overshoot - reduces risk of latch-up or damage to 3.3 V/5 V/12 V logic and analog front-ends. |
| MSL Level 1, 260 °C reflow | Compatible with standard lead-free SMT assembly processes - no special baking or handling required prior to placement. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor signal lines (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between signal line and chassis ground to shunt surge energy before it reaches the sensor interface IC. Use Value: Maintains signal integrity during 12 V/24 V system transients up to ±152 V peak, supporting AEC-Q101-compliant design without external biasing. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to clamp transients before they reach optocoupler or Schmitt trigger input stages. Use Value: Enables reliable operation under IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity testing with no degradation after repeated 2.0 A pulses. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Control Board |
Use Scenario: Secondary-level protection on Ethernet PHY or RS-485 bus lines in telecom access equipment subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response clamping device placed after primary GDT or polymer PTC, limiting residual voltage to <152 V during 10/1000 μs events. Use Value: Reduces downstream IC failure rate by limiting transient voltage to levels compatible with 3.3 V or 5 V PHY transceivers. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines or HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role / Timing Role: Low-leakage bidirectional suppressor across motor terminals or H-bridge outputs to absorb inductive kickback. Use Value: Prevents MCU reset or ADC corruption caused by >100 V spikes, with <1.0 μA leakage preserving battery-backed real-time clock accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Same VWM (94 V), higher PPPM (600 W), larger SMB (DO-214AA) package - 2.5× footprint area vs. SMA. | Preferred where higher surge margin is needed and PCB space allows larger package; not drop-in due to different pad layout. | Select SMBJ110CA only if 600 W rating is required and layout revision is acceptable. |
| 1.5KE110CA | Same VWM and VC, but through-hole DO-15 package, 1500 W PPPM, higher thermal mass - requires wave solder or hand-soldering. | Suitable for prototyping or legacy through-hole designs; incompatible with automated SMT lines using 7" or 13" reels. | Choose 1.5KE110CA only for manual assembly or when higher single-pulse energy absorption is critical. |
Compared with SMBJ110CA and 1.5KE110CA, P4SMA110CAHE3/5A offers optimal balance of AEC-Q101 compliance, compact SMA footprint, and reel-ready packaging for high-volume automotive and industrial SMT production - without sacrificing clamping performance or thermal robustness.
Availability
P4SMA110CAHE3/5A is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, telecom line cards, and consumer appliance motor control boards requiring stable component supply and long-term lifecycle support.
Supply support for P4SMA110CAHE3/5A 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 and automotive-grade qualification.
The P4SMA Series targets surface-mount transient suppression in space-constrained, high-reliability applications - engineered specifically for AEC-Q101 compliance, low-profile assembly, and consistent clamping performance across temperature.
FAQ
What does the "CA" suffix indicate in P4SMA110CAHE3/5A?
The "CA" suffix denotes a bidirectional configuration: the P4SMA110CAHE3/5A functions identically in both polarities, with symmetric breakdown and clamping characteristics. This eliminates polarity marking on the SMA package and simplifies layout for AC-coupled or differential signal lines. Unlike unidirectional variants (e.g., P4SMA110A), the CA version has no cathode band and supports clamping regardless of voltage polarity applied across its terminals.
Is P4SMA110CAHE3/5A qualified for automotive applications?
Yes, P4SMA110CAHE3/5A is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22 standards. This qualification validates its suitability for under-hood and cabin electronics such as body control modules, sensor interfaces, and infotainment power rails - provided thermal design adheres to RθJA = 120 °C/W limits.
What is the maximum clamping voltage of P4SMA110CAHE3/5A under surge conditions?
The maximum clamping voltage (VC) of P4SMA110CAHE3/5A is 152 V, measured at a peak pulse current (IPPM) of 2.0 A with a 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet and represents the highest voltage that will appear across the device during standardized surge events - directly limiting stress on downstream components like microcontrollers, transceivers, or analog sensors connected to the protected line.
How does the "HE3/5A" ordering code affect P4SMA110CAHE3/5A packaging and compliance?
The "HE3/5A" suffix specifies RoHS-compliant, AEC-Q101-qualified construction in a 13-inch plastic tape-and-reel format containing 7500 units. "HE3" indicates halogen-free, lead-free matte tin plating and automotive qualification; "5A" denotes the large reel size optimized for high-volume SMT placement. This differs from "/61" (7-inch reel, 1800 units) and ensures compatibility with automated pick-and-place systems used in Tier-1 automotive electronics manufacturing.
Can P4SMA110CAHE3/5A replace unidirectional TVS diodes in existing designs?
No - P4SMA110CAHE3/5A is strictly bidirectional and lacks polarity marking, so it cannot substitute for unidirectional TVS diodes (e.g., P4SMA110A) without circuit review. In unidirectional applications, such as DC power rail protection with defined anode/cathode orientation, using P4SMA110CAHE3/5A may result in unintended conduction or insufficient clamping margin. Always verify signal topology and grounding scheme before substitution.
P4SMA110CAHE3/5A 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 2A
- Power - Peak Pulse:
- 300W
- 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-214AC (SMA)
P4SMA110CAHE3/5A FAQ
1.How can I place an order for P4SMA110CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110CAHE3/5A 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 P4SMA110CAHE3/5A reliable?
The price and inventory of P4SMA110CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA110CAHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA110CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110CAHE3/5A?
P4SMA110CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110CAHE3/5A 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 P4SMA110CAHE3/5A?
For technical support, including P4SMA110CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110CAHE3/5A requirements.
6.How does Aetrix verify that P4SMA110CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA110CAHE3/5A 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 P4SMA110CAHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA110CAHE3/5A?
All P4SMA110CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110CAHE3/5A, 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 P4SMA110CAHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA110CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA110CAHE3/5A Tags
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