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Vishay General Semiconductor - Diodes Division P4SMA22CA-E3/5A
- Part No.:
- P4SMA22CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA22CA-E3/5A.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,362
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Product details
Overview
P4SMA22CA-E3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal and power lines. It features a 22 V standoff voltage (VWM), 24.4–26.9 V breakdown voltage (VBR) at 1 mA, 30.6 V maximum clamping voltage (VC) at 13.1 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P4SMA22CA-E3/5A datasheet, P4SMA22CA-E3/5A pinout, P4SMA22CA-E3/5A application, or P4SMA22CA-E3/5A equivalent, key selection criteria include bidirectional clamping capability, SMA (DO-214AC) package compatibility, AEC-Q101 qualification status, thermal resistance (RθJA = 120 °C/W), and compliance with UL 497B for protector classification.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, delivering identical clamping performance regardless of transient polarity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at VWM), while the low incremental surge resistance enables rapid energy diversion during ESD or lightning-induced surges.
The device is rated for repetitive 10/1000 µs pulses at 0.01% duty cycle (400 W up to 91 V; derated to 300 W above), with a maximum junction temperature of +150 °C and MSL Level 1 moisture sensitivity per J-STD-020 - supporting lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 22 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 24 V nominal systems. |
| VBR (Breakdown Voltage) | 24.4–26.9 V at 1 mA - Confirmed breakdown threshold range ensuring reliable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 30.6 V at 13.1 A - Peak voltage seen by protected circuit under 10/1000 µs surge; critical for IC-level voltage tolerance alignment. |
| PPPM (Peak Pulse Power) | 400 W - Sustained transient energy absorption capacity with standard 10/1000 µs waveform; supports IEC 61000-4-5 Level 3/4 testing. |
| IPPM (Peak Pulse Current) | 13.1 A - Maximum non-repetitive surge current handled without degradation; derived directly from VC and PPPM. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance; determines required PCB copper area (0.2" × 0.2") for thermal management. |
| TJmax | +150 °C - Absolute maximum junction temperature; enables operation in under-hood automotive environments. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking - symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides low-impedance path to ground or rail during positive or negative transients; electrically identical to cathode. |
| Cathode | Transient return path (bidirectional) | Functionally interchangeable with anode; no band marking distinguishes polarity in CA-suffix devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 400 W peak pulse power | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive electronics. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
| MSL Level 1 | Allows unlimited floor life and standard reflow without baking; compatible with high-volume SMT assembly. |
| UL 497B recognized | Qualified as a listed protector (QVGQ2, E136766), enabling use in safety-critical telecom and industrial systems. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential or single-ended signal lines to clamp ±30 V transients before they reach MCU ADC inputs or transceivers. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs while maintaining signal integrity below 30.6 V clamping threshold. |
Use Scenario: Shielding PLC digital input modules from field-side surge coupling via long wiring runs in factory automation systems. IC Role / Device Role / Timing Role: Front-end transient suppressor mounted directly at terminal block entry points to divert >1 kV/500 A surges per IEC 61000-4-5. Use Value: Enables system-level compliance with EN 61000-6-2 immunity standards using minimal board space and no external components. |
| Telecom Line Interface | Consumer USB/Display Port ESD Protection |
|
Use Scenario: Safeguarding Ethernet PHYs, DSL line drivers, and PoE injectors against lightning-induced common-mode surges on twisted-pair cables. IC Role / Device Role / Timing Role: Common-mode TVS pair (two P4SMA22CA-E3/5A) across line pairs to suppress differential and common-mode transients simultaneously. Use Value: Achieves >15 kV ESD (IEC 61000-4-2) and 1 kV surge (IEC 61000-4-5) protection without signal distortion or insertion loss. |
Use Scenario: Adding secondary-level surge protection downstream of integrated ESD arrays in notebook docking stations and monitor hubs. IC Role / Device Role / Timing Role: Standoff-clamp TVS on VBUS and data lines to absorb residual energy after primary ESD diodes trigger. Use Value: Extends system lifetime under repeated hot-plug events by limiting voltage overshoot to ≤30.6 V during 13.1 A transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22CA | Higher PPPM (600 W), larger SMB (DO-214AA) package, same VWM/VC specs. | Better suited for higher-energy surges; requires larger PCB footprint and different pad layout. | Select when surge test levels exceed 400 W or when thermal budget allows larger package. |
| 1.5KE22CA | Through-hole TO-204AE (DO-15), 1500 W PPPM, same VWM/VC; higher IPPM (65.2 A). | Designed for legacy through-hole assembly or high-power front-end protection where board space is not constrained. | Choose for cost-sensitive industrial power supplies or retrofit designs requiring axial-leaded parts. |
Compared with SMBJ22CA and 1.5KE22CA, the P4SMA22CA-E3/5A delivers optimal balance of compact SMA packaging, AEC-Q101 qualification, and 400 W surge handling - making it preferred for space-constrained automotive and portable industrial modules where surface-mount scalability matters.
Availability
P4SMA22CA-E3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, and telecom line surge suppression requiring stable component supply, RoHS-compliant sourcing, and AEC-Q101 traceability.
Supply support for P4SMA22CA-E3/5A 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 optimization.
The P4SMA Series targets high-volume, space-constrained transient protection needs in automotive, industrial, and telecom systems - engineered for automated placement, thermal robustness, and standardized surge compliance.
FAQ
What is the clamping voltage of P4SMA22CA-E3/5A at its rated peak pulse current?
The P4SMA22CA-E3/5A has a maximum clamping voltage (VC) of 30.6 V at 13.1 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88367 and defines the upper voltage limit imposed on protected circuits during surge events - critical for ensuring compatibility with 3.3 V or 5 V logic interfaces. The P4SMA22CA-E3/5A maintains this clamping performance bidirectionally.
Is P4SMA22CA-E3/5A qualified for automotive applications?
Yes, P4SMA22CA-E3/5A is AEC-Q101 qualified per Vishay's documentation (Revision 09-Jan-2024, Document Number 88367). It undergoes stress testing for temperature cycling, high-temperature reverse bias, and ESD robustness required for automotive electronics. The "HE3" or "HM3" suffix variants are explicitly designated for automotive use, but the E3/5A version shares the same die and qualification baseline - confirmed by Vishay's material categorization and UL recognition (E136766).
What does the "CA" suffix indicate in P4SMA22CA-E3/5A?
The "CA" suffix in P4SMA22CA-E3/5A denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional "A" variants (e.g., P4SMA22A), the CA version has no polarity marking and functions identically in either orientation, making it ideal for AC signal lines, differential buses, or floating grounds. Electrical characteristics apply equally in both directions.
What is the thermal resistance of P4SMA22CA-E3/5A, and how does it affect PCB layout?
The P4SMA22CA-E3/5A 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 dictates minimum copper area needed to maintain junction temperature below 150 °C during repetitive surges. Reducing pad size increases RθJA, risking thermal runaway - so PCB layout must follow Vishay's recommended mounting pad dimensions in the DO-214AC outline drawing.
Does P4SMA22CA-E3/5A meet any safety certifications?
Yes, P4SMA22CA-E3/5A is Underwriters Laboratories (UL) recognized under standard UL 497B for protectors, with file number E136766. This certification validates its suitability in safety-critical telecom and industrial applications where surge protection devices must comply with insulation, flammability (UL 94 V-0), and failure-mode requirements. The SMA molding compound meets UL 94 V-0, and the device is rated for use in classified protector systems.
P4SMA22CA-E3/5A 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 13.1A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA22CA-E3/5A FAQ
1.How can I place an order for P4SMA22CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA22CA-E3/5A 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 P4SMA22CA-E3/5A reliable?
The price and inventory of P4SMA22CA-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA22CA-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA22CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA22CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA22CA-E3/5A?
P4SMA22CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA22CA-E3/5A 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 P4SMA22CA-E3/5A?
For technical support, including P4SMA22CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA22CA-E3/5A requirements.
6.How does Aetrix verify that P4SMA22CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA22CA-E3/5A 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 P4SMA22CA-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA22CA-E3/5A?
All P4SMA22CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA22CA-E3/5A, 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 P4SMA22CA-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA22CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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