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Vishay General Semiconductor - Diodes Division P4SMA220AHE3_A/I
- Part No.:
- P4SMA220AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA220AHE3_A/I.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA220AHE3_A/I 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), 209–231 V breakdown voltage (VBR) at 1 mA, and 328 A peak pulse current (IPPM) under 10/1000 µs waveform. It delivers 400 W peak pulse power, clamps to 328 V max at rated surge, and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P4SMA220AHE3_A/I datasheet, P4SMA220AHE3_A/I pinout, P4SMA220AHE3_A/I application, or P4SMA220AHE3_A/I equivalent, this device serves as a robust, RoHS-compliant, low-profile TVS diode optimized for high-voltage transient suppression on power rails and signal lines in harsh environments-especially where automotive-grade reliability and fast response (<1 ns) are required.
Technical Context
The P4SMA220AHE3_A/I operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve stable, repeatable clamping behavior during ESD and lightning-induced transients. Its 120 °C/W junction-to-ambient thermal resistance and 30 °C/W junction-to-lead resistance support operation up to 150 °C junction temperature with appropriate PCB copper pad layout (0.2" × 0.2").
It conforms to IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive surge) immunity requirements when applied per recommended mounting guidelines. The cathode-band polarity marking enables unambiguous orientation during automated placement on high-density boards.
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 margin below clamping threshold. |
| VBR (Breakdown Voltage) | 209–231 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 328 V at 328 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; critical for downstream IC survivability. |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy-handling capability under standardized transient waveform; derates above 25 °C ambient. |
| ID (Reverse Leakage) | 1.0 µA at 185 V - Minimal leakage current at rated VWM; preserves efficiency and avoids false triggering in high-impedance circuits. |
| TJ max | 150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive and industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
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 solderability standards. Molding compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference in unidirectional TVS configuration. | Provides return path for surge current; must be routed with low-inductance connection to minimize clamping overshoot. |
| Cathode (marked with band) | Current exit terminal in forward bias; connected to protected line (e.g., 24 V rail or CAN-H). | Defines polarity-sensitive placement; reversal causes open-circuit failure during transients-no clamping action. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables protection of 24 V and 48 V automotive power domains against ISO 7637-2 Pulse 5a surges without derating. |
| Glass-passivated chip junction | Ensures long-term stability of VBR and leakage across temperature and humidity stress; eliminates passivation-related drift. |
| MSL Level 1 (260 °C reflow) | Supports single-pass lead-free reflow assembly without moisture sensitivity concerns or baking requirements. |
| AEC-Q101 qualification (HE3 suffix) | Validates suitability for automotive applications including engine control units, body controllers, and ADAS sensor interfaces. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD >15 kV), improving protection margin for sensitive receivers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (ISO 7637-2 Pulse 5a) on 24 V battery-fed ECUs in commercial vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground, clamping surges within nanoseconds. Use Value: Limits peak voltage to ≤328 V, preventing damage to 36 V-rated DC-DC converters and microcontrollers. |
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: TVS shunt element on signal line referenced to local ground, activated only during overvoltage faults. Use Value: Maintains signal integrity below 185 V normal operation while clamping lightning-induced spikes to safe levels. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered network switches against induced surges from nearby AC mains wiring. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 48 V DC input rail, coordinated with upstream fuse and secondary filtering. Use Value: Withstands 400 W pulses without degradation, ensuring uptime in outdoor telecom cabinets. |
Use Scenario: Mitigating back-EMF spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, power tools). IC Role / Device Role / Timing Role: Unidirectional TVS across motor terminals, absorbing inductive kickback during PWM switching. Use Value: Prevents MOSFET drain-source breakdown by clamping transients to 328 V, extending power stage lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220A-E3/5A | Same VWM (185 V), identical SMA package, but lower PPPM (400 W same), higher ID (5 µA vs. 1 µA), no AEC-Q101 qualification. | Commercial-grade only; not validated for automotive temperature cycling or humidity testing. | Select when AEC-Q101 is unnecessary and cost optimization is prioritized over automotive reliability assurance. |
| 1.5SMC220A | Higher package thermal mass (SMC/DO-214AB), 1.5 kW PPPM rating, but larger footprint (7.11 mm × 6.22 mm vs. 4.5 mm × 2.79 mm) and no AEC-Q101 HE3 variant. | Requires PCB redesign; suited for higher-energy surges where space permits and automotive qualification is secondary. | Choose only if surge energy exceeds 400 W capability and board area allows larger SMC package. |
Compared with SMAJ220A-E3/5A and 1.5SMC220A, the P4SMA220AHE3_A/I uniquely combines AEC-Q101 qualification, ultra-low leakage (1 µA), and compact SMA footprint-making it the optimal choice for space-constrained, safety-critical automotive and industrial designs requiring verified long-term reliability.
Availability
P4SMA220AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power inputs, and consumer appliance motor drives requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P4SMA220AHE3_A/I 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 application-specific validation.
The P4SMA Series targets high-reliability transient suppression in automotive, industrial, and telecom systems-designed specifically for surface-mount compatibility, AEC-Q101 compliance, and consistent clamping performance across temperature and life cycles.
FAQ
What is the maximum clamping voltage of the P4SMA220AHE3_A/I under a 10/1000 µs surge?
The P4SMA220AHE3_A/I clamps to a maximum of 328 V when subjected to its rated peak pulse current of 328 A under the standardized 10/1000 µs waveform. This value is measured at the device terminals with specified PCB copper pad layout (0.2" × 0.2") and represents the highest voltage imposed on the protected circuit during surge conditions. The P4SMA220AHE3_A/I maintains this clamping performance across its full operating temperature range.
Is the P4SMA220AHE3_A/I suitable for bidirectional transient protection?
No, the P4SMA220AHE3_A/I is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. It conducts only in reverse bias during overvoltage events and blocks forward current. For bidirectional protection, Vishay offers the P4SMA220CAHE3_A/I variant (with "CA" suffix); the P4SMA220AHE3_A/I must not be substituted in AC-coupled or symmetrical surge environments without circuit redesign.
Does the P4SMA220AHE3_A/I require derating at elevated ambient temperatures?
Yes, the P4SMA220AHE3_A/I must be derated above 25 °C ambient temperature. Its peak pulse power (PPPM) decreases linearly per Figure 2 in the datasheet, reaching ~70 % of 400 W at 85 °C ambient and ~50 % at 125 °C. Derating is based on junction temperature limits (TJ max = 150 °C) and thermal resistance (RθJA = 120 °C/W); proper PCB copper pour design directly impacts achievable derating margin for the P4SMA220AHE3_A/I.
What does the "HE3_A/I" suffix signify in P4SMA220AHE3_A/I?
The "HE3" denotes RoHS-compliant construction with AEC-Q101 qualification; "A" indicates the revision level per Vishay's internal documentation; "I" specifies packaging in 13-inch diameter tape-and-reel (7500 units per reel). This full suffix confirms the P4SMA220AHE3_A/I meets automotive reliability standards, environmental compliance, and automated assembly requirements-distinct from commercial-grade E3 or M3 variants.
Can the P4SMA220AHE3_A/I be used in parallel for higher surge current handling?
No-parallel connection of P4SMA220AHE3_A/I devices is not recommended due to mismatch in breakdown voltage (209–231 V range), which causes uneven current sharing and potential thermal runaway. For higher surge capability, select a single higher-rated device (e.g., P4SMA250AHE3_B/I) or implement staged protection with upstream current-limiting impedance. The P4SMA220AHE3_A/I is characterized and qualified as a standalone unit.
P4SMA220AHE3_A/I 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/I FAQ
1.How can I place an order for P4SMA220AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA220AHE3_A/I 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/I reliable?
The price and inventory of P4SMA220AHE3_A/I 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/I is usually 5 days.
3.What payment methods are accepted for P4SMA220AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA220AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA220AHE3_A/I?
P4SMA220AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA220AHE3_A/I 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/I?
For technical support, including P4SMA220AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA220AHE3_A/I requirements.
6.How does Aetrix verify that P4SMA220AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA220AHE3_A/I 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/I meets industry standards.
7.What is the process for return or replacement of P4SMA220AHE3_A/I?
All P4SMA220AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA220AHE3_A/I, 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/I part is unused and in its original packaging.
Return procedure for P4SMA220AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA220AHE3_A/I Tags
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