Vishay General Semiconductor - Diodes Division P4SMA220CA-M3/61
- Part No.:
- P4SMA220CA-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA220CA-M3/61.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
P4SMA220CA-M3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in the SMA (DO-214AC) package, rated for 220 V breakdown voltage (VBR = 209–231 V at IT = 1.0 mA), 400 W peak pulse power (10/1000 µs), and clamping voltage of 328 V at IPPM = 0.91 A. It protects signal lines and power rails in industrial sensor interfaces and telecom equipment against ESD and inductive switching transients.
For engineers reviewing the P4SMA220CA-M3/61 datasheet, P4SMA220CA-M3/61 pinout, P4SMA220CA-M3/61 application, or P4SMA220CA-M3/61 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal derating curves, AEC-Q101 qualification status (M3 suffix), and halogen-free RoHS compliance - all critical for automotive-grade surge protection design-in.
Technical Context
This bidirectional TVS diode operates symmetrically across both polarities, with identical VBR, VC, and IPPM specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM = 185 V) and fast response time (<1 ns) to transient events.
Thermal performance is defined by RθJA = 120 °C/W (typ.) and RθJL = 30 °C/W (typ.), with maximum junction temperature of +150 °C. Derating above TA = 25 °C follows Fig. 2 in the datasheet, and peak power drops to 300 W for devices above 91 V nominal rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V at IT = 1.0 mA - defines reliable conduction onset under surge stress |
| VWM | 185 V - maximum continuous working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 328 V at IPPM = 0.91 A (10/1000 µs) - clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 400 W - peak transient power handling capability on standard 0.2" × 0.2" copper pads |
| IPPM | 0.91 A - maximum non-repetitive surge current supported under 10/1000 µs waveform |
| TJ max. | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 5.0 mm × 5.0 mm pad layout compatibility |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Bidirectional construction has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (either polarity) | One terminal of symmetrical junction; connects to line under protection |
| Cathode | Transient current exit point (either polarity) | Second terminal of symmetrical junction; connects to ground or return path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware layout in AC or differential signal paths |
| Halogen-free & RoHS-compliant (M3) | Meets JEDEC J-STD-201 Class 2 whisker resistance and global environmental mandates without compromising surge robustness |
| 400 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV surge) protection on 24–48 V industrial buses when properly mounted |
| AEC-Q101 qualified option | M3 suffix indicates qualification for automotive applications including engine control modules and body electronics |
| Low incremental surge resistance | Enables tighter clamping margin versus competing TVS diodes - reduces overvoltage stress on downstream MOSFETs or ICs |
Applications
| Industrial Sensor Interface | Telecom Line Protection |
|---|---|
|
Use Scenario: Protecting RS-485 transceivers and analog sensor outputs (e.g., 4–20 mA loops) from lightning-induced surges and EFT bursts in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pair or between signal and ground to clamp transients before they reach sensitive input stages. Use Value: Clamps 10/1000 µs surges to ≤328 V while maintaining <1.0 µA leakage at 185 V operating voltage - preserving signal integrity and measurement accuracy. |
Use Scenario: Safeguarding Ethernet PHY interfaces and DSL line drivers against induced surges on outdoor telecom wiring exposed to electromagnetic interference. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on unshielded twisted-pair lines, coordinated with secondary GDT or MOV stages. Use Value: Fast <1 ns response and symmetrical clamping ensure balanced protection of differential signaling without skew or common-mode disruption. |
| Automotive Body Control Module | Power Supply Input Stage |
|
Use Scenario: Surge suppression on LIN bus lines and switched 12 V inputs in door modules, seat controllers, and lighting ECUs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS connected between LIN signal and chassis ground to absorb repetitive transients without polarity constraints. Use Value: AEC-Q101 qualification (M3 suffix) and +150 °C TJ max. ensure reliability in under-dash environments with wide thermal cycling. |
Use Scenario: Secondary-level protection on DC input rails of embedded power supplies (e.g., 24 V industrial SMPS) following primary MOV or fuse coordination. IC Role / Device Role / Timing Role: Fast-acting clamping device limiting voltage overshoot during hot-swap or capacitive load switching events. Use Value: 400 W peak power rating enables handling of 100 A/10 ms pulses when used with appropriate PCB copper area - extends system uptime in harsh environments. |
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); higher PPPM = 600 W, larger footprint (4.6 × 3.95 mm vs. SMA's 4.5 × 2.79 mm) | Better suited for high-energy surges where board space allows larger package; not drop-in due to different pad layout | Select SMBJ220CA only if 600 W rating is required and PCB layout accommodates wider body and longer leads. |
| 1.5KE220CA | Through-hole DO-201 package; same VBR and VC, but PPPM = 1500 W and IPPM = 4.3 A - significantly higher energy handling | Used in legacy or high-reliability power supply designs where manual assembly or mechanical robustness is prioritized over SMT density | Choose 1.5KE220CA only for through-hole prototyping or repair scenarios - not compatible with automated SMT placement. |
Compared with SMBJ220CA and 1.5KE220CA, P4SMA220CA-M3/61 offers optimal balance of compact SMA footprint, 400 W surge capacity, halogen-free compliance, and AEC-Q101 qualification - making it preferred for space-constrained, automotive-qualified, and high-volume SMT production.
Availability
P4SMA220CA-M3/61 is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, automotive body control modules, and power supply input stages requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification.
Supply support for P4SMA220CA-M3/61 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series targets cost-sensitive, high-volume surge protection needs in automotive, industrial, and telecom markets - delivering standardized TVS performance in compact surface-mount packages with rigorous qualification and environmental compliance.
FAQ
What is the maximum working voltage (VWM) for P4SMA220CA-M3/61?
The maximum working voltage (VWM) for P4SMA220CA-M3/61 is 185 V. This is the highest continuous DC or RMS voltage the device can withstand without exceeding 1.0 µA reverse leakage current. Operating above this voltage risks premature conduction and accelerated degradation. The P4SMA220CA-M3/61 must be selected so that system normal-mode voltage remains below 185 V to ensure long-term reliability and proper transient clamping function.
Is P4SMA220CA-M3/61 suitable for automotive applications?
Yes, P4SMA220CA-M3/61 is suitable for automotive applications because its M3 suffix denotes halogen-free, RoHS-compliant construction and AEC-Q101 qualification. This certification validates its performance under temperature cycling, humidity, mechanical shock, and lifetime reliability tests required for under-hood and cabin electronics. Engineers deploying P4SMA220CA-M3/61 in LIN bus protection or body control modules benefit from documented qualification data per AEC-Q101 Rev D.
What does the "CA" suffix mean in P4SMA220CA-M3/61?
The "CA" suffix in P4SMA220CA-M3/61 explicitly identifies it as a bidirectional Transient Voltage Suppressor. Unlike unidirectional variants (e.g., P4SMA220A), the CA version features symmetrical breakdown and clamping characteristics in both polarities - essential for protecting AC-coupled signals, differential buses, or circuits where voltage polarity reversal may occur. No cathode band marking is present on P4SMA220CA-M3/61 due to its bidirectional nature.
How much peak pulse current can P4SMA220CA-M3/61 handle?
P4SMA220CA-M3/61 handles a peak pulse current (IPPM) of 0.91 A under the standard 10/1000 µs waveform condition. This value is derived directly from its 400 W peak pulse power rating and 328 V clamping voltage (IPPM = PPPM/VC). Actual surge current capability depends on PCB copper area - the datasheet specifies this rating assumes mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal.
Does P4SMA220CA-M3/61 require special PCB layout considerations?
Yes, P4SMA220CA-M3/61 requires adherence to the recommended SMA (DO-214AC) mounting pad layout: 0.074" (1.88 mm) minimum pad width, 0.208" (5.28 mm) maximum body length clearance, and 0.066" (1.68 mm) minimum pad length. Thermal performance and surge robustness depend on using 0.2" × 0.2" copper pads per terminal - undersized traces or insufficient copper reduce IPPM derating and increase risk of bond wire failure during repeated transients.
P4SMA220CA-M3/61 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:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA220CA-M3/61 FAQ
1.How can I place an order for P4SMA220CA-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA220CA-M3/61 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 P4SMA220CA-M3/61 reliable?
The price and inventory of P4SMA220CA-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA220CA-M3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA220CA-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA220CA-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA220CA-M3/61?
P4SMA220CA-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA220CA-M3/61 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 P4SMA220CA-M3/61?
For technical support, including P4SMA220CA-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA220CA-M3/61 requirements.
6.How does Aetrix verify that P4SMA220CA-M3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA220CA-M3/61 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 P4SMA220CA-M3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA220CA-M3/61?
All P4SMA220CA-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA220CA-M3/61, 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 P4SMA220CA-M3/61 part is unused and in its original packaging.
Return procedure for P4SMA220CA-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA220CA-M3/61 Tags

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