Vishay General Semiconductor - Diodes Division P4SMA220CAHE3/61
- Part No.:
- P4SMA220CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA220CAHE3/61.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AC
- Quantity:
- Payment:

- Shipping:

Inventory:6,681
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Product details
Overview
P4SMA220CAHE3/61 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 220 V standoff voltage (VWM), 231 V minimum breakdown voltage (VBR), and 400 W peak pulse power (10/1000 µs). It provides clamping protection for signal lines and power rails in automotive sensor interfaces and industrial control I/O circuits.
For engineers reviewing the P4SMA220CAHE3/61 datasheet, P4SMA220CAHE3/61 pinout, P4SMA220CAHE3/61 application, or P4SMA220CAHE3/61 equivalent, key selection criteria include bidirectional clamping capability at 220 V, AEC-Q101 qualification, 328 V maximum clamping voltage at 0.91 A peak pulse current, and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This TVS diode operates symmetrically in both directions, enabling robust protection against positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM).
Designed for transient suppression per IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT), it delivers 328 V clamping voltage at 0.91 A IPPM under 10/1000 µs waveform, with thermal resistance RθJA = 120 °C/W and operating junction temperature range of −65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 220 V - Maximum continuous reverse working voltage before clamping begins |
| VBR (Breakdown) | 209–231 V at 1 mA - Confirmed voltage range where device transitions into avalanche conduction |
| VC (Clamping) | 328 V at IPPM = 0.91 A - Peak voltage seen by protected circuit during 10/1000 µs surge |
| PPPM | 400 W - Surge energy handling capacity under standardized 10/1000 µs waveform |
| ID (Leakage) | <1.0 µA at 220 V - Minimal standby current ensuring negligible power loss in normal operation |
| TJ max. | +150 °C - Maximum junction temperature supporting operation in under-hood automotive environments |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H), matte tin-plated terminals, MSL Level 1 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Common terminal for symmetrical clamping; connects to protected line or ground reference |
| Cathode | Transient return path (bidirectional) | Identical functional role as Anode; no polarity distinction in CA-type devices |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without orientation constraints |
| 400 W peak pulse power | Supports IEC 61000-4-4 level 4 (4 kV) surge immunity when properly mounted on 5.0 mm × 5.0 mm copper pads |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control modules and ADAS sensor interfaces |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., load dump, inductive switching) |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak, compatible with standard lead-free SMT processes |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from ESD and load-dump induced spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between signal line and chassis ground to shunt transients before reaching sensitive input stages. Use Value: Maintains signal integrity under ±25 kV contact ESD (IEC 61000-4-2) while adding zero propagation delay or loading in normal operation. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to clamp transients exceeding 220 V without affecting logic threshold detection. Use Value: Prevents false triggering and latch-up in optocoupler input stages during 1 kV/500 A surge events (IEC 61000-4-4). |
| Telecom Line Interface Protection | Consumer Appliance Motor Control Board |
Use Scenario: Shielding RS-485 transceiver pins and auxiliary power rails in base station backhaul equipment from lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS used downstream of gas discharge tubes to limit let-through voltage to safe levels for IC survival. Use Value: Clamps to ≤328 V within nanoseconds, limiting energy delivered to transceiver to <10 mJ per event. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machine control boards operating in high-humidity environments. IC Role / Device Role / Timing Role: Bidirectional clamp across motor driver half-bridge outputs to prevent overvoltage damage to MOSFET gate drivers. Use Value: Withstands repetitive 400 W pulses at 0.01% duty cycle, enabling reliable operation over 10-year appliance lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | Same VWM/VBR/VC ratings but in larger SMB (DO-214AA) package; 600 W PPPM rating | Higher power handling supports longer surge durations; requires larger PCB footprint | Select when system-level surge testing exceeds 400 W or board layout allows 5.3 mm × 4.6 mm footprint |
| 1.5KE220CA | Through-hole TO-218 package; same 220 V bidirectional rating; 1500 W PPPM | Designed for high-energy industrial mains protection; not SMT-compatible | Choose only for legacy through-hole designs or where mechanical robustness outweighs automated assembly needs |
Compared with SMBJ220CA and 1.5KE220CA, P4SMA220CAHE3/61 offers optimal balance of AEC-Q101 qualification, compact SMA footprint, and verified 400 W surge capability-making it the preferred choice for space-constrained automotive and industrial SMT designs requiring production-grade reliability.
Availability
P4SMA220CAHE3/61 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interface boards, and consumer appliance motor control systems requiring stable component supply and long-term lifecycle support.
Supply support for P4SMA220CAHE3/61 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, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The P4SMA Series targets cost-sensitive, high-volume applications requiring robust transient suppression in compact SMT packages-specifically engineered for automotive, industrial, and communications equipment where AEC-Q101 compliance and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of P4SMA220CAHE3/61 at its rated peak pulse current?
The P4SMA220CAHE3/61 has a maximum clamping voltage (VC) of 328 V at 0.91 A peak pulse current (IPPM), measured under the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2.
Is P4SMA220CAHE3/61 suitable for automotive applications?
Yes, P4SMA220CAHE3/61 is AEC-Q101 qualified, as indicated by the "HE3" suffix, and meets requirements for temperature cycling, high-temperature reverse bias, and ESD robustness. It is explicitly recommended for automotive sensor units, infotainment interfaces, and body control modules per Vishay's application notes and ordering information.
What does the "CA" suffix mean in P4SMA220CAHE3/61?
The "CA" suffix in P4SMA220CAHE3/61 denotes a bidirectional configuration-meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional variants (e.g., P4SMA220A), it has no cathode band marking and functions identically regardless of voltage polarity applied across its terminals.
What is the thermal resistance of P4SMA220CAHE3/61, and how does it affect PCB layout?
P4SMA220CAHE3/61 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. To maintain safe junction temperatures under repetitive surges, designers must adhere to this pad layout-reducing pad size increases thermal impedance and risks premature failure during sustained transient activity.
How does P4SMA220CAHE3/61 differ from P4SMA220AHE3/61?
P4SMA220CAHE3/61 is bidirectional with symmetrical clamping behavior, while P4SMA220AHE3/61 is unidirectional and features a cathode band marking. Their VWM (220 V), VBR (209–231 V), and VC (328 V) ratings are identical, but the unidirectional version conducts forward current and requires correct polarity placement-making P4SMA220CAHE3/61 preferable for AC or floating signal lines.
P4SMA220CAHE3/61 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:
- 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)
P4SMA220CAHE3/61 FAQ
1.How can I place an order for P4SMA220CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA220CAHE3/61 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 P4SMA220CAHE3/61 reliable?
The price and inventory of P4SMA220CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA220CAHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA220CAHE3/61?
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P4SMA220CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA220CAHE3/61 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 P4SMA220CAHE3/61?
For technical support, including P4SMA220CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA220CAHE3/61 requirements.
6.How does Aetrix verify that P4SMA220CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA220CAHE3/61 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 P4SMA220CAHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA220CAHE3/61?
All P4SMA220CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA220CAHE3/61, 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 P4SMA220CAHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA220CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA220CAHE3/61 Tags

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