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Vishay General Semiconductor - Diodes Division P4SMA220CAHE3/5A
- Part No.:
- P4SMA220CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA220CAHE3/5A.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA220CAHE3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 220 V breakdown voltage (VBR = 209–231 V at 1 mA), 185 V maximum standoff voltage (VWM), and 328 V clamping voltage (VC) at 0.91 A peak pulse current (IPPM). It delivers 400 W peak pulse power (10/1000 µs waveform) and is AEC-Q101 qualified for automotive-grade reliability in signal-line surge protection.
For engineers reviewing the P4SMA220CAHE3/5A datasheet, P4SMA220CAHE3/5A pinout, P4SMA220CAHE3/5A application, or P4SMA220CAHE3/5A equivalent, this device serves as a robust, low-capacitance transient protector for high-voltage sensor interfaces, CAN/LIN bus lines, and industrial I/O circuits where bidirectional clamping and MSL Level 1 reflow compatibility are required.
Technical Context
The P4SMA220CAHE3/5A operates as a bidirectional avalanche diode with symmetrical clamping in both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1 µA at VWM), while the 120 °C/W junction-to-ambient thermal resistance supports operation up to 150 °C junction temperature.
Designed for transient suppression per IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump), it exhibits sub-nanosecond response time and low dynamic impedance (ZPP ≈ 361 Ω derived from VC/IPPM). The device is qualified to AEC-Q101 and meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 209–231 V at 1 mA test current - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| Standoff Voltage VWM | 185 V maximum - ensures no conduction during normal 200 V-class system operation |
| Clamping Voltage VC | 328 V at 0.91 A (10/1000 µs) - limits transient voltage seen by downstream ICs to safe margin below damage thresholds |
| Peak Pulse Power PPPM | 400 W (10/1000 µs) - sustains high-energy surges common in industrial and automotive environments |
| Leakage Current ID | <1 µA at VWM - prevents signal distortion or bias shift in high-impedance sensor interfaces |
| Operating Temperature | −65 °C to +150 °C - supports under-hood automotive and wide-temperature industrial deployments |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM/MM |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102; meets UL 94 V-0 and MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; one side of bidirectional clamping path | Connected to protected line; forms symmetrical avalanche junction with cathode for bidirectional protection |
| Cathode | Current exit terminal in forward bias; other side of bidirectional clamping path | Connected to protected line; identical electrical role to anode due to bidirectional construction - no polarity marking on device |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC, differential, or floating signals without polarity-sensitive layout constraints |
| 400 W peak pulse power | Withstands high-energy transients from inductive switching or lightning-induced surges in industrial control systems |
| AEC-Q101 qualification | Validates reliability for automotive applications including body electronics, ADAS sensor interfaces, and powertrain modules |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for 3.3 V/5 V logic and analog front-ends |
| MSL Level 1 rating | Allows single-reflow assembly without moisture sensitivity concerns - eliminates bake requirements pre-SMT |
Applications
| Automotive Sensor Interface | Industrial Analog Input Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control units against load dump and ESD. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between sensor output and microcontroller ADC input or LIN transceiver. Use Value: Limits transient voltage to ≤328 V while maintaining <1 µA leakage, preserving signal integrity and preventing ADC saturation or latch-up. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in PLC analog modules from field wiring surges and ground potential differences. IC Role / Device Role / Timing Role: Primary overvoltage clamp across input terminals, upstream of precision op-amp conditioning circuitry. Use Value: Clamps 1 kV/1 A surge events within nanoseconds, avoiding damage to 24 V-rated op-amps and maintaining loop accuracy over temperature. |
| Telecom Line Interface | Power Supply Rail Clamp |
Use Scenario: Protecting RS-485 transceiver I/O pins in outdoor telecom equipment exposed to induced lightning surges. IC Role / Device Role / Timing Role: Secondary-level TVS placed directly at connector, complementing primary gas discharge tube (GDT) protection. Use Value: Provides low-clamping, fast-response backup protection with 328 V VC, ensuring transceiver survival under combined GDT follow-on current and fast-rising transients. |
Use Scenario: Clamping 24 V DC power rail against reverse battery connection or inductive kickback in motor drive PCBs. IC Role / Device Role / Timing Role: Bidirectional shunt device across rail and ground, absorbing energy before it reaches DC-DC converters or gate drivers. Use Value: Absorbs 400 W pulses without degradation, preventing rail collapse and protecting downstream FETs rated for ≤40 V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | Same VBR range (209–231 V), but SMB package (DO-214AA); 600 W PPPM, higher thermal mass, larger footprint | Better suited for higher-power industrial mains-side protection; less space-constrained than SMA layouts | Select when board area permits larger package and higher surge margin is needed beyond 400 W |
| 1.5KE220CA | Through-hole DO-201 package; same VBR/VC, but 1500 W PPPM; higher IPPM (6.8 A), slower response due to junction capacitance | Used in legacy power supply designs or prototyping where manual assembly or high-surge legacy compliance is required | Choose only for through-hole production or when 1.5 kW surge handling is mandatory and layout allows axial lead spacing |
Compared with SMBJ220CA and 1.5KE220CA, the P4SMA220CAHE3/5A offers optimal balance of automotive qualification, compact SMA footprint, and sufficient 400 W surge capability for modern surface-mount sensor and communication interface protection - without sacrificing AEC-Q101 compliance or reflow compatibility.
Availability
P4SMA220CAHE3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial analog input protection, telecom line interfaces, and 24 V DC rail clamping requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P4SMA220CAHE3/5A 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, efficiency, and application-specific performance.
The P4SMA Series is designed for robust transient voltage suppression in space-constrained, high-reliability applications including automotive electronics, industrial controls, and communications infrastructure - delivering consistent clamping with AEC-Q101 validation and MSL Level 1 process compatibility.
FAQ
What is the clamping voltage of P4SMA220CAHE3/5A at its rated peak pulse current?
The P4SMA220CAHE3/5A has a maximum clamping voltage (VC) of 328 V at 0.91 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88367 and defines the upper voltage limit imposed on protected circuitry during surge events. The P4SMA220CAHE3/5A maintains this clamping performance across its full operating temperature range.
Is P4SMA220CAHE3/5A suitable for automotive applications?
Yes, P4SMA220CAHE3/5A is AEC-Q101 qualified and carries the "HE3" suffix denoting RoHS-compliant and automotive-grade qualification. It undergoes stress testing including high-temperature operating life (HTOL), temperature cycling (TCT), and human-body-model ESD per AEC-Q101 Rev D. The P4SMA220CAHE3/5A is approved for use in engine control, body electronics, and ADAS sensor interfaces where transient immunity and long-term reliability are critical.
What does the "CA" suffix indicate in P4SMA220CAHE3/5A?
The "CA" suffix in P4SMA220CAHE3/5A designates a bidirectional configuration - meaning the device provides symmetrical transient voltage suppression in both polarities, with identical VBR, VC, and IPPM characteristics regardless of voltage polarity applied. Unlike unidirectional variants (e.g., P4SMA220A), the P4SMA220CAHE3/5A has no cathode band marking and is used where signal lines lack defined DC bias or require AC-coupled protection.
What is the standoff voltage rating for P4SMA220CAHE3/5A?
The maximum standoff voltage (VWM) for P4SMA220CAHE3/5A is 185 V, meaning it remains in high-impedance state with leakage <1 µA up to this DC or RMS voltage level. This allows safe integration into 200 V-class systems such as industrial 24 V/48 V rails or telecom line interfaces where continuous operating voltage must remain below breakdown threshold. The P4SMA220CAHE3/5A's VWM is derived from its 220 V nominal breakdown rating with 5% tolerance.
Does P4SMA220CAHE3/5A require special PCB layout considerations?
Yes - for optimal surge performance, P4SMA220CAHE3/5A should be mounted using the minimum recommended pad layout per Vishay specification: 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pads per terminal to ensure rated 400 W pulse power dissipation. Short, low-inductance traces to protected nodes and ground are essential; routing near high-dI/dt paths or noisy grounds must be avoided. The P4SMA220CAHE3/5A's SMA package supports automated placement but requires controlled thermal profile per J-STD-020 MSL Level 1.
P4SMA220CAHE3/5A 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):
- 185V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 900mA
- 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)
P4SMA220CAHE3/5A FAQ
1.How can I place an order for P4SMA220CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA220CAHE3/5A 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 P4SMA220CAHE3/5A reliable?
The price and inventory of P4SMA220CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA220CAHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA220CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA220CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA220CAHE3/5A?
P4SMA220CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA220CAHE3/5A 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 P4SMA220CAHE3/5A?
For technical support, including P4SMA220CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA220CAHE3/5A requirements.
6.How does Aetrix verify that P4SMA220CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA220CAHE3/5A 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 P4SMA220CAHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA220CAHE3/5A?
All P4SMA220CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA220CAHE3/5A, 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 P4SMA220CAHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA220CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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