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Vishay General Semiconductor - Diodes Division P4SMA220AHE3_A/H
- Part No.:
- P4SMA220AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA220AHE3_A/H.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA220AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) 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 at 328 V under 0.91 A peak pulse current and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P4SMA220AHE3_A/H datasheet, P4SMA220AHE3_A/H pinout, P4SMA220AHE3_A/H application, or P4SMA220AHE3_A/H equivalent, this device serves as a robust, low-profile overvoltage clamp for DC power rails and signal lines where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.42), and high surge immunity are required in harsh environments.
Technical Context
The P4SMA220AHE3_A/H uses a glass-passivated silicon junction to achieve stable avalanche breakdown with ±5% VBR tolerance (209–231 V) and a temperature coefficient of +0.108 %/°C. Its unidirectional polarity features a cathode band marking and supports only reverse-biased transient suppression.
Designed for automated SMT placement, it operates across –65 °C to +150 °C junction temperature, dissipates 3.3 W continuously on infinite heatsink at 50 °C ambient, and exhibits 120 °C/W junction-to-ambient thermal resistance on standard 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 185 V - Maximum continuous reverse working voltage before conduction begins; defines safe operating DC rail margin. |
| VBR (Breakdown Voltage) | 209–231 V at 1 mA - Confirmed avalanche onset range; ensures predictable clamping initiation under transients. |
| VC (Clamping Voltage) | 328 V at IPPM = 0.91 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy absorption capability per single transient event; enables protection against IEC 61000-4-5 Level 4 surges. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - Negligible standby current; avoids battery drain or signal distortion in low-power systems. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including HTOL, TC, and ESD testing; supports PPAP documentation. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / low-side reference | Connected to system ground or return path; establishes reference for unidirectional clamping action. |
| Cathode | Transient current sink / high-side connection | Connected to protected line (e.g., 24 V rail); conducts surge current to ground when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 combination wave (4 kV/2 Ω) protection on 24 V systems without external series impedance. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving clamping fidelity. |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles; no moisture sensitivity handling required. |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure. |
| AEC-Q101 qualification (HE3 suffix) | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-defect reliability. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (ISO 16750-2) on 24 V battery-fed ECUs in commercial vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and local regulator input to clamp surges before LDO or DC/DC stage. Use Value: Limits voltage to ≤328 V during 120 V/100 ms load dump, preventing damage to 36 V-rated regulators and microcontrollers. |
Use Scenario: Protecting analog output lines (4–20 mA) of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: TVS mounted at sensor connector to shunt induced lightning-induced surges (IEC 61000-4-5) before signal conditioning op-amps. Use Value: Clamps common-mode transients up to 4 kV while maintaining <1 µA leakage, preserving mA-loop accuracy and calibration integrity. |
| Telecom DC Feeder Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered equipment (IEEE 802.3af/at) from AC mains coupling into 48 V DC feeders. IC Role / Device Role / Timing Role: Unidirectional TVS on DC input side of PD controller IC to absorb differential-mode surges before isolation barrier. Use Value: Withstands 400 W pulses without degradation, enabling compliance with UL 60950-1 surge withstand requirements. |
Use Scenario: Shielding MCU GPIOs and gate drivers from back-EMF spikes generated by brushed DC motors in smart home appliances. IC Role / Device Role / Timing Role: TVS placed across motor terminals and/or at driver output to clamp inductive kickback before logic-level inputs. Use Value: Responds in <1 ns to 100 V/µs edges, limiting spike amplitude to 328 V and preventing latch-up or permanent gate oxide failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220A-E3/52 (Vishay) | Same VWM/VBR/VC specs but SMB (DO-214AA) package; 600 W PPPM rating; higher thermal mass. | Better suited for higher-energy surges or less aggressive board space constraints; requires larger pad layout. | Select when surge energy exceeds 400 W or PCB layout allows larger footprint; not drop-in due to different package dimensions. |
| 1.5KE220A (ON Semiconductor) | Through-hole DO-201AE package; same 220 V VWM; 1500 W PPPM; higher VF and slower response than P4SMA220AHE3_A/H. | Used in legacy industrial power supplies where through-hole assembly remains standard; unsuitable for high-density SMT designs. | Choose only for through-hole retrofit or cost-sensitive non-automotive applications; not pin-compatible or footprint-compatible. |
Compared with SMBJ220A-E3/52 and 1.5KE220A, the P4SMA220AHE3_A/H delivers optimal balance of AEC-Q101 qualification, compact SMA footprint, and sufficient 400 W surge capacity for modern automotive and industrial SMT systems-without requiring PCB redesign or sacrificing reliability.
Availability
P4SMA220AHE3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom DC feeders, and consumer appliance motor drives requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant sourcing.
Supply support for P4SMA220AHE3_A/H 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 is designed for high-reliability transient suppression in automotive, industrial, and telecom systems-delivering standardized, AEC-Q101-qualified TVS performance in compact surface-mount packages.
FAQ
What is the maximum clamping voltage of the P4SMA220AHE3_A/H under specified test conditions?
The P4SMA220AHE3_A/H has a maximum clamping voltage (VC) of 328 V when subjected to a 10/1000 µs waveform with a peak pulse current (IPPM) of 0.91 A. This value is measured at TA = 25 °C and reflects the actual voltage imposed on the protected circuit during a standardized surge event. The P4SMA220AHE3_A/H maintains this clamping performance across its full operating temperature range, supporting robust design margins in automotive and industrial applications.
Is the P4SMA220AHE3_A/H suitable for bidirectional transient suppression?
No, the P4SMA220AHE3_A/H is a unidirectional TVS diode, indicated by the "A" suffix and absence of "CA" in the part number. It conducts only in reverse bias above VBR and must be oriented with the cathode toward the protected line. For bidirectional protection, Vishay offers the P4SMA220CAHE3_A/H variant, which provides symmetrical clamping in both polarities and uses a different breakdown mechanism.
Does the P4SMA220AHE3_A/H meet automotive qualification standards?
Yes, the P4SMA220AHE3_A/H is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's P4SMA series datasheet (Rev. 09-Jan-2024, Doc. #88367). This qualification covers stress tests including high-temperature operating life, temperature cycling, and electrostatic discharge-making the P4SMA220AHE3_A/H appropriate for use in automotive body electronics, infotainment, and ADAS subsystems.
What is the thermal resistance of the P4SMA220AHE3_A/H, and how does it affect PCB layout?
The P4SMA220AHE3_A/H 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 assumes minimal copper area; increasing pad size or adding thermal vias reduces RθJA. For reliable 3.3 W continuous dissipation, designers should allocate ≥5 mm² copper per pad and avoid enclosing the device in tight thermal pockets to prevent junction overheating.
How does the P4SMA220AHE3_A/H compare to older P4KE series TVS diodes?
The P4SMA220AHE3_A/H replaces through-hole P4KE220A with superior SMT compatibility, lower profile, tighter VBR tolerance (±5% vs. ±10%), and AEC-Q101 qualification. While both offer 220 V VWM and similar clamping, the P4SMA220AHE3_A/H achieves faster response (<1 ns vs. ~1.5 ns), lower leakage (<1 µA vs. ~5 µA), and MSL Level 1 reflow compatibility-making it the preferred choice for new automotive and high-density industrial designs.
P4SMA220AHE3_A/H 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):
- 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)
P4SMA220AHE3_A/H FAQ
1.How can I place an order for P4SMA220AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA220AHE3_A/H 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 P4SMA220AHE3_A/H reliable?
The price and inventory of P4SMA220AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA220AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P4SMA220AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA220AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA220AHE3_A/H?
P4SMA220AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA220AHE3_A/H 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 P4SMA220AHE3_A/H?
For technical support, including P4SMA220AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA220AHE3_A/H requirements.
6.How does Aetrix verify that P4SMA220AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P4SMA220AHE3_A/H 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 P4SMA220AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P4SMA220AHE3_A/H?
All P4SMA220AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA220AHE3_A/H, 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 P4SMA220AHE3_A/H part is unused and in its original packaging.
Return procedure for P4SMA220AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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