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Vishay General Semiconductor - Diodes Division P4SMA110CAHE3_A/H
- Part No.:
- P4SMA110CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110CAHE3_A/H.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA110CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P4SMA series, designed for clamping voltage transients on signal or power lines. It features a 110 V standoff voltage (VWM), 152 V maximum clamping voltage at 2.0 A peak pulse current, and 400 W peak pulse power rating with a 10/1000 µs waveform - suitable for protecting automotive sensor interfaces and industrial I/O lines against ESD and inductive switching surges.
For engineers reviewing the P4SMA110CAHE3_A/H datasheet, P4SMA110CAHE3_A/H pinout, P4SMA110CAHE3_A/H application, or P4SMA110CAHE3_A/H equivalent, this device is evaluated for AEC-Q101-qualified transient suppression in bidirectional configurations, with verified thermal resistance (RθJA = 120 °C/W), low leakage (<1 µA at VWM), and SMA (DO-214AC) package compatibility for automated SMT assembly.
Technical Context
The P4SMA110CAHE3_A/H operates as a symmetrical avalanche diode, conducting equally in both directions above its breakdown threshold (VBR min = 105 V, max = 116 V at 1 mA). Its glass-passivated junction ensures stable reverse leakage and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5).
Rated for 150 °C maximum junction temperature and MSL Level 1 moisture sensitivity, it supports reflow soldering up to 260 °C peak. The device delivers 300 W peak pulse power above 91 V per derating curve, with 0.01% duty cycle capability and 3.3 W steady-state power dissipation on infinite heatsink at 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 94.0 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 105–116 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 152 V at IPPM = 2.0 A (10/1000 µs) - Peak voltage seen by protected circuit under rated surge; critical for IC-level protection. |
| PPPM (Peak Pulse Power) | 400 W - Surge energy handling capacity with standard 10/1000 µs waveform; derates to 300 W above 91 V. |
| ID (Reverse Leakage) | <1.0 µA at VWM - Minimal standby current draw; preserves signal integrity and battery life in always-on systems. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance; informs PCB copper pad sizing (0.2" × 0.2") for thermal reliability. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC specification. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal 1 | One side of symmetrical junction; connects to line being protected (e.g., CAN_H or RS-485 A). |
| Cathode | Terminal 2 | Other side of symmetrical junction; connects to same line (bidirectional operation requires no polarity assignment). |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against ISO 7637-2 pulse 1/2a/5a surges without derating in compact layouts. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics where field failure risk must be minimized. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow without preconditioning; eliminates moisture-related popcorning. |
| Glass passivated junction | Ensures stable leakage and breakdown characteristics across -65 °C to +150 °C operating range. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Bus |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤152 V during 100 V/50 ms load dump events, preserving 12-bit ADC accuracy and preventing latch-up. |
Use Scenario: Shielding RS-485 transceivers in factory automation PLCs from ground loop surges and ESD on long cable runs. IC Role / Device Role / Timing Role: Line-to-line and line-to-ground TVS pair across differential A/B bus lines. Use Value: Clamps common-mode surges to <152 V within <1 ns, maintaining signal integrity at 10 Mbps while meeting IEC 61000-4-4 level 4. |
| Consumer USB-C Port Protection | Telecom DSL Line Interface |
Use Scenario: Safeguarding USB-C CC and VCONN lines in portable chargers against hot-plug ESD and cable-induced transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector pins before ESD filter and controller. Use Value: Withstands ±15 kV contact discharge (IEC 61000-4-2) while adding <0.5 pF capacitance, avoiding USB 2.0 signal degradation. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers in residential gateways subjected to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Primary surge suppressor between transformer secondary and line driver IC. Use Value: Absorbs 400 W surge energy without degradation, maintaining >60 dB return loss up to 30 MHz per ITU-T G.992.1. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Same VWM (94 V) and VC (152 V), but SMB package (DO-214AA); 600 W PPPM rating. | Higher power handling but larger footprint (5.28 mm × 4.50 mm vs. SMA's 4.93 mm × 3.99 mm); less suitable for space-constrained automotive modules. | Select when board layout allows larger pad area and higher surge margin is required beyond 400 W. |
| 1.5KE110CA | Through-hole TO-204AE (DO-201AE); same electrical specs but 1500 W PPPM and higher RθJA (70 °C/W). | Not SMT-compatible; requires wave soldering; used in legacy telecom power supplies where manual assembly is acceptable. | Choose only for through-hole designs needing higher surge endurance and where rework tolerance outweighs automation needs. |
Compared with SMBJ110CA and 1.5KE110CA, the P4SMA110CAHE3_A/H offers optimal balance of AEC-Q101 qualification, compact SMA packaging, and precise 400 W surge capability - making it the preferred choice for new automotive and industrial SMT designs requiring validated reliability and minimal board area.
Availability
P4SMA110CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial RS-485 networks, consumer USB-C interface hardening, and telecom DSL line conditioning requiring stable component supply across production lifecycles.
Supply support for P4SMA110CAHE3_A/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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The P4SMA series targets cost-sensitive, high-volume transient suppression applications where AEC-Q101 qualification, low-profile SMT packaging, and consistent clamping performance are essential - especially in automotive body electronics and industrial communications interfaces.
FAQ
What is the maximum clamping voltage of the P4SMA110CAHE3_A/H under a 10/1000 µs surge?
The P4SMA110CAHE3_A/H has a maximum clamping voltage (VC) of 152 V when subjected to a 2.0 A peak pulse current with a 10/1000 µs waveform. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 88367, Rev. 09-Jan-2024) and represents the highest voltage the protected circuit will experience during that defined transient event. The P4SMA110CAHE3_A/H maintains this clamping performance consistently across its qualified temperature range.
Is the P4SMA110CAHE3_A/H suitable for automotive applications?
Yes, the P4SMA110CAHE3_A/H is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's P4SMA series datasheet. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD verification - making it appropriate for automotive body control modules, sensor interfaces, and infotainment system I/O protection. The P4SMA110CAHE3_A/H meets requirements for under-hood and cabin environments up to +125 °C ambient.
What does the "CA" suffix indicate in P4SMA110CAHE3_A/H?
The "CA" suffix in P4SMA110CAHE3_A/H denotes a bidirectional Transient Voltage Suppressor configuration. Unlike unidirectional variants (e.g., P4SMA110A), the CA version conducts identically in both directions, enabling symmetric clamping across differential lines or AC-coupled signals without polarity concerns. Electrical characteristics - including VWM, VBR, and VC - apply equally in forward and reverse bias, as verified in the Vishay P4SMA datasheet.
What is the thermal resistance (RθJA) of the P4SMA110CAHE3_A/H, and how does it affect PCB layout?
The P4SMA110CAHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value directly informs minimum copper pour size needed to maintain TJ ≤ 150 °C under sustained 3.3 W power dissipation. Reducing pad area increases RθJA, risking thermal runaway during repetitive surges - so the P4SMA110CAHE3_A/H requires adherence to Vishay's recommended layout for reliable operation.
Does the P4SMA110CAHE3_A/H have polarity markings on the package?
No, the P4SMA110CAHE3_A/H has no polarity markings because it is a bidirectional TVS diode. As stated in the Vishay P4SMA datasheet, "no marking on bidirectional types." Its symmetrical construction means either terminal may connect to either side of the protected line - simplifying layout and eliminating orientation errors during automated placement. This distinguishes the P4SMA110CAHE3_A/H from unidirectional variants, which use a cathode band for polarity identification.
P4SMA110CAHE3_A/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:
- Active
- 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_A/H FAQ
1.How can I place an order for P4SMA110CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110CAHE3_A/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 P4SMA110CAHE3_A/H reliable?
The price and inventory of P4SMA110CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA110CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for P4SMA110CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110CAHE3_A/H?
P4SMA110CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110CAHE3_A/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 P4SMA110CAHE3_A/H?
For technical support, including P4SMA110CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110CAHE3_A/H requirements.
6.How does Aetrix verify that P4SMA110CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P4SMA110CAHE3_A/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 P4SMA110CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of P4SMA110CAHE3_A/H?
All P4SMA110CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110CAHE3_A/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 P4SMA110CAHE3_A/H part is unused and in its original packaging.
Return procedure for P4SMA110CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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