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Vishay General Semiconductor - Diodes Division P4SMA180CAHE3/5A
- Part No.:
- P4SMA180CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA180CAHE3/5A.pdf
- Description:
- TVS DIODE 154VWM 246VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,419
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Product details
Overview
P4SMA180CAHE3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in the P4SMA series, designed for clamping voltage transients on signal and power lines. It features a 180 V standoff voltage (VWM), 207 V minimum breakdown voltage (VBR), 246 V maximum clamping voltage (VC) at 1.2 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P4SMA180CAHE3/5A datasheet, P4SMA180CAHE3/5A pinout, P4SMA180CAHE3/5A application, or P4SMA180CAHE3/5A equivalent, this device delivers AEC-Q101-qualified transient suppression in SMA (DO-214AC) package with bidirectional symmetry, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive ECUs and industrial control modules.
Technical Context
The P4SMA180CAHE3/5A operates as a bidirectional avalanche diode, exhibiting symmetrical clamping behavior in both polarities with no polarity marking. Its glass-passivated junction enables fast response time (<1 ns) and stable breakdown characteristics over temperature, supported by a ±0.108 %/°C VBR temperature coefficient.
It is rated for 400 W peak pulse power (10/1000 µs) up to TA = 25 °C, derating linearly above that per Figure 2; thermal resistance is 120 °C/W junction-to-ambient (RθJA) on standard 0.2" × 0.2" copper pads. The device meets UL 497B recognition and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 180 V - Maximum continuous reverse working voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 207–234 V at IT = 1 mA - Voltage at which avalanche conduction initiates; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 246 V at IPPM = 1.2 A - Maximum voltage seen across protected circuit during 10/1000 µs surge; limits stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs) - Sustains single high-energy surges without failure; derates to 300 W above 91 V per spec note. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - Negligible standby current; avoids loading sensitive analog or low-power circuits. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and enclosed industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per AEC standard. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetric anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Conducts during negative-going surges; forms symmetrical path with cathode for bidirectional protection. |
| Cathode | Transient current entry (positive polarity) | Conducts during positive-going surges; identical electrical role to anode due to bidirectional construction. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware layout in AC-coupled or floating signal lines. |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive electronics including engine control, body modules, and ADAS sensors - supports PPAP documentation. |
| MSL Level 1 rating | Reflow-compatible up to 260 °C peak without baking - enables direct placement into high-volume SMT lines without moisture mitigation. |
| Glass-passivated junction | Stable leakage and breakdown over time and temperature - prevents parameter drift in long-life industrial deployments. |
| UL 497B recognition (QVGQ2) | Approved for telecom and industrial surge protection systems requiring certified safety compliance - reduces end-equipment certification effort. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and relay driver outputs from load dump and inductive switching spikes in vehicle door modules and lighting controls. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail and signal line to clamp transients before they reach MCU I/O or level-shifters. Use Value: Prevents latch-up or permanent damage to 5 V/12 V interface ICs during 100 V/100 ms load dump events per ISO 7637-2 Pulse 5a. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring surges and ground potential differences. IC Role / Device Role / Timing Role: Low-leakage TVS shunting induced transients between signal and return paths without affecting loop accuracy. Use Value: Maintains <1 µA leakage at 180 V standoff, ensuring full-scale measurement integrity while surviving 400 W surge pulses. |
| Telecom Base Station Sensor Interface | Consumer Appliance Motor Drive Feedback |
Use Scenario: Shielding temperature and humidity sensor signal lines in outdoor telecom cabinets from lightning-induced surges on long interconnect traces. IC Role / Device Role / Timing Role: Fast-response TVS placed at connector entry point to divert energy before it couples into ADC front-end or op-amp buffers. Use Value: Sub-1 ns response time and 246 V clamping limit ensure sensor output remains within ADC input range during 1 kV/1.2 µs surge events. |
Use Scenario: Protecting hall-effect rotor position feedback lines in BLDC motor drives inside washing machines and HVAC compressors. IC Role / Device Role / Timing Role: Bidirectional suppressor guarding differential encoder signals against commutation noise and back-EMF coupling. Use Value: Symmetrical clamping preserves signal integrity on AC-coupled feedback paths while surviving repetitive 300 W surges per duty cycle spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ180CA | Same VWM (180 V), but lower PPPM (400 W vs. P4SMA180CAHE3/5A's 400 W); identical DO-214AC package and bidirectional function. | No AEC-Q101 qualification; rated commercial grade only - unsuitable for automotive production. | Select SMAJ180CA only for cost-sensitive non-automotive applications where qualification is not required. |
| SMCJ180CA | Higher PPPM (1500 W), larger SMC (DO-214AB) package; same VWM and bidirectional behavior. | Requires PCB layout change due to larger footprint and higher thermal mass - not drop-in compatible. | Choose SMCJ180CA when system-level surge requirements exceed 400 W, accepting larger board area and rework. |
Compared with SMAJ180CA and SMCJ180CA, the P4SMA180CAHE3/5A uniquely combines AEC-Q101 qualification, SMA footprint compatibility, and 400 W surge capability - making it the only option qualified for automotive use without sacrificing board space or requiring layout revision.
Availability
P4SMA180CAHE3/5A is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC analog inputs, telecom sensor interfaces, and consumer appliance motor feedback systems requiring stable component supply and long-term lifecycle support.
Supply support for P4SMA180CAHE3/5A 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, and protection devices with emphasis on reliability, efficiency, and application-specific performance.
The P4SMA series was developed for high-volume surface-mount transient suppression in automotive, industrial, and telecom systems - prioritizing AEC-Q101 compliance, tight parameter distribution, and robust surge handling in compact SMA packages.
FAQ
What is the clamping voltage of P4SMA180CAHE3/5A at its rated peak pulse current?
The P4SMA180CAHE3/5A has a maximum clamping voltage (VC) of 246 V at 1.2 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per Figure 1 and Table on page 2 of the Vishay datasheet 88367, and defines the upper voltage limit imposed on protected circuitry during surge events. The P4SMA180CAHE3/5A maintains this clamping performance consistently across its operating temperature range.
Is P4SMA180CAHE3/5A suitable for automotive applications?
Yes, P4SMA180CAHE3/5A is AEC-Q101 qualified (indicated by the HE3 suffix), having passed stress tests including temperature cycling, high-temperature reverse bias, and ESD per automotive reliability standards. It is explicitly intended for use in automotive body electronics, infotainment interfaces, and ADAS sensor protection - confirmed in the "Mechanical Data" and "Ordering Information" sections of Vishay document 88367.
What does the "CA" suffix mean in P4SMA180CAHE3/5A?
The "CA" suffix in P4SMA180CAHE3/5A denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P4SMA180A), the CA version has no polarity marking and identical electrical characteristics in either direction, making it ideal for AC signal lines, differential buses, and floating power domains.
What is the maximum operating junction temperature for P4SMA180CAHE3/5A?
The maximum operating junction temperature (TJ max) for P4SMA180CAHE3/5A is +150 °C, as specified in the "Maximum Ratings" table on page 2 of Vishay document 88367. This rating enables reliable operation in under-hood automotive environments and sealed industrial enclosures, and is validated through AEC-Q101 thermal cycling and HTGB testing.
Does P4SMA180CAHE3/5A require special handling for moisture sensitivity?
No - P4SMA180CAHE3/5A is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and can be subjected to standard lead-free reflow profiles with peak temperatures up to 260 °C without pre-baking. This is confirmed in the "Features" section of the datasheet and simplifies integration into high-throughput SMT assembly lines.
P4SMA180CAHE3/5A 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):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 1.2A
- Power - Peak Pulse:
- 400W
- 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)
P4SMA180CAHE3/5A FAQ
1.How can I place an order for P4SMA180CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA180CAHE3/5A 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 P4SMA180CAHE3/5A reliable?
The price and inventory of P4SMA180CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA180CAHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA180CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA180CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA180CAHE3/5A?
P4SMA180CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA180CAHE3/5A 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 P4SMA180CAHE3/5A?
For technical support, including P4SMA180CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA180CAHE3/5A requirements.
6.How does Aetrix verify that P4SMA180CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA180CAHE3/5A 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 P4SMA180CAHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA180CAHE3/5A?
All P4SMA180CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA180CAHE3/5A, 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 P4SMA180CAHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA180CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA180CAHE3/5A Tags
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