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Vishay General Semiconductor - Diodes Division P4SMA22A-E3/61
- Part No.:
- P4SMA22A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA22A-E3/61.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:1,800
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Product details
Overview
P4SMA22A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P4SMA series, designed for clamping voltage transients on power and signal lines. It features a 22 V breakdown voltage (VBR = 20.9–23.1 V at IT = 1.0 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 to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P4SMA22A-E3/61 datasheet, P4SMA22A-E3/61 pinout, P4SMA22A-E3/61 application, or P4SMA22A-E3/61 equivalent, key selection considerations include its unidirectional polarity, SMA (DO-214AC) package, 18.8 V stand-off voltage (VWM), <1.0 µA reverse leakage at VWM, and AEC-Q101 qualification eligibility via HE3/HM3 variants.
Technical Context
The P4SMA22A-E3/61 operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling precise clamping during fast transients (response time <1 ns). It is rated for repetitive 10/1000 µs pulses at 0.01% duty cycle, delivering 400 W peak power up to 91 V and 300 W above that level.
Thermally, it exhibits RθJA = 120 °C/W (junction-to-ambient) and RθJL = 30 °C/W (junction-to-lead), supporting operation from –65 °C to +150 °C. The cathode band denotes polarity, and its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 20.9–23.1 V at 1.0 mA test current - defines precise clamping onset under transient stress |
| Stand-off Voltage VWM | 18.8 V - maximum continuous reverse voltage before leakage exceeds 1.0 µA |
| Clamping Voltage VC | 30.6 V at 13.1 A peak pulse current - limits protected circuit voltage during ESD/surge events |
| Peak Pulse Power PPPM | 400 W (10/1000 µs waveform) - sustains high-energy transients without failure |
| Peak Pulse Current IPPM | 13.1 A - maximum non-repetitive surge current the device safely clamps |
| Operating Temperature | –65 °C to +150 °C - supports harsh environments including under-hood automotive use |
| Package | SMA (DO-214AC) - low-profile SMD footprint compatible with automated placement and reflow |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case with matte tin-plated leads. Cathode indicated by a band on the body; anode is unmarked end. Meets UL 94 V-0 flammability rating and J-STD-020 MSL Level 1 (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge (e.g., reverse-biased protection) |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential side; avalanches to clamp transients when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V/24 V rails |
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime, minimizing parameter drift in long-term deployments |
| Low profile SMA package | Reduces board space vs. DO-15/DO-201; supports high-density layouts in compact sensor modules and ECUs |
| AEC-Q101 qualification path | HE3/HM3 variants available - meets automotive reliability requirements for engine control and ADAS subsystems |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying manufacturing logistics |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground, clamping transients within nanoseconds to prevent latch-up or damage to downstream ASICs. Use Value: With VC = 30.6 V and 13.1 A IPPM, it holds protected node voltage below 31 V during 10/1000 µs surges - well below typical 36 V ABS max ratings. |
Use Scenario: Safeguarding digital input/output channels on programmable logic controllers exposed to relay coil flyback, motor drive noise, and field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on each I/O pin, operating at 18.8 V VWM to avoid false triggering while clamping >22 V transients. Use Value: 1.0 µA max leakage at VWM prevents signal distortion on high-impedance 24 V DC inputs; 400 W rating handles repeated 2 kV/12 Ω surges per IEC 61000-4-4. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters and USB-C PD power supplies after rectification and filtering. IC Role / Device Role / Timing Role: Unidirectional TVS across DC output rail (e.g., 19 V, 20 V), absorbing turn-on spikes and regulator fault conditions. Use Value: VBR = 20.9–23.1 V aligns with 20 V nominal outputs; clamping at 30.6 V prevents damage to downstream DC-DC converters rated for 36 V max input. |
Use Scenario: Protecting Ethernet PHY interfaces, RS-485 transceivers, and DSL line drivers from lightning-induced surges and ESD events. IC Role / Device Role / Timing Role: Primary-level TVS on differential pairs or supply rails, placed before isolation transformers or common-mode chokes. Use Value: Fast response (<1 ns) and low VC/VBR ratio (1.31) minimize voltage overshoot on sensitive PHY pins; SMA package allows placement near connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A (Bourns) | Same VBR range (20.9–23.1 V), but SMB package (DO-214AA); 600 W PPPM rating; RθJA = 100 °C/W | Higher power handling, but 1.6 mm taller package may conflict with height-constrained designs | Select SMBJ22A when higher surge margin is required and board clearance permits larger footprint |
| 1.5SMC22A (ON Semiconductor) | Identical VBR, VWM, VC; same SMA package; 400 W PPPM; slightly higher leakage (5 µA max at VWM) | Compatible pinout and layout, but less stringent leakage spec may affect ultra-low-power sensor nodes | Choose 1.5SMC22A for drop-in replacement where leakage <1 µA is not critical and second-source assurance is needed |
Compared with P4SMA22A-E3/61, SMBJ22A offers greater surge headroom in a physically larger package, while 1.5SMC22A provides identical form-factor compatibility with relaxed leakage tolerance - making P4SMA22A-E3/61 optimal for space-constrained, low-leakage industrial and automotive applications requiring AEC-Q101-ready variants.
Availability
P4SMA22A-E3/61 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line interface applications requiring stable component supply, RoHS-compliant sourcing, and consistent lead-time performance.
Supply support for P4SMA22A-E3/61 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, precision, and automotive-grade qualification.
The P4SMA series is engineered for high-reliability transient suppression in demanding environments - targeting automotive, industrial, and telecom systems where consistent clamping performance and long-term stability are critical.
FAQ
What is the breakdown voltage tolerance of P4SMA22A-E3/61?
The P4SMA22A-E3/61 has a breakdown voltage VBR of 20.9 V to 23.1 V at 1.0 mA test current, representing a ±5% tolerance around the nominal 22 V rating. This tight tolerance ensures predictable clamping behavior across production lots and temperature ranges, critical for protecting voltage-sensitive ICs without premature conduction.
Is P4SMA22A-E3/61 suitable for automotive applications?
Yes - while the base P4SMA22A-E3/61 is commercial-grade, Vishay offers AEC-Q101 qualified variants (e.g., P4SMA22AHE3_A) under the same P4SMA family. These HE3/HM3 versions undergo extended reliability testing per automotive standards and are approved for use in engine control, body electronics, and ADAS subsystems.
What is the maximum clamping voltage of P4SMA22A-E3/61 at rated peak pulse current?
The P4SMA22A-E3/61 clamps to a maximum of 30.6 V at its rated peak pulse current of 13.1 A (10/1000 µs waveform). This VC value is guaranteed across temperature and ensures protected circuits remain within safe operating limits during surge events - for example, preserving 3.3 V or 5 V logic rails downstream of series impedance.
Does P4SMA22A-E3/61 have polarity marking, and how is it identified?
Yes - P4SMA22A-E3/61 is unidirectional and features a cathode band printed on the device body. The banded end is the cathode; the opposite end is the anode. This marking is essential for correct orientation during PCB layout and assembly to ensure proper clamping direction on positive-rail protection applications.
What is the thermal resistance of P4SMA22A-E3/61, and how does it affect derating?
P4SMA22A-E3/61 has a typical junction-to-ambient thermal resistance RθJA of 120 °C/W and junction-to-lead RθJL of 30 °C/W. At ambient temperatures above 25 °C, its peak pulse power must be derated per Figure 2 in the datasheet - e.g., at 75 °C ambient, usable PPPM drops to ~280 W, directly impacting surge survivability in high-temperature enclosures.
P4SMA22A-E3/61 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:
- 1
- Bidirectional Channels:
- -
- 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)
P4SMA22A-E3/61 FAQ
1.How can I place an order for P4SMA22A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA22A-E3/61 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 P4SMA22A-E3/61 reliable?
The price and inventory of P4SMA22A-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA22A-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA22A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA22A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA22A-E3/61?
P4SMA22A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA22A-E3/61 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 P4SMA22A-E3/61?
For technical support, including P4SMA22A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA22A-E3/61 requirements.
6.How does Aetrix verify that P4SMA22A-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA22A-E3/61 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 P4SMA22A-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA22A-E3/61?
All P4SMA22A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA22A-E3/61, 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 P4SMA22A-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA22A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA22A-E3/61 Tags
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