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Vishay General Semiconductor - Diodes Division P4SMA220CAHM3/I
- Part No.:
- P4SMA220CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA220CAHM3/I.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,573
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Product details
Overview
P4SMA220CAHM3/I 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 delivers clamping voltage of 328 V at 0.91 A peak pulse current and is halogen-free, RoHS-compliant, and AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P4SMA220CAHM3/I datasheet, P4SMA220CAHM3/I pinout, P4SMA220CAHM3/I application, or P4SMA220CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, low leakage (<1 µA at VWM), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on consumer, industrial, and automotive PCBs.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical reverse/forward conduction behavior due to its bidirectional construction. It exhibits fast response time (<1.0 ns), low incremental surge resistance, and thermal resistance of 120 °C/W (junction-to-ambient) under standard pad layout conditions.
The P4SMA220CAHM3/I uses glass-passivated silicon junction technology and meets UL 94 V-0 flammability requirements. Its 0.064 g unit weight and DO-214AC outline support high-density board layouts while maintaining 150 °C maximum junction temperature operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 220 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR (Breakdown Voltage) | 209–231 V at 1 mA - Confirmed voltage range where device transitions into avalanche conduction |
| VC (Clamping Voltage) | 328 V at IPPM = 0.91 A - Peak voltage seen across protected circuit during 10/1000 µs transient |
| PPPM (Peak Pulse Power) | 400 W - Sustained transient energy handling per IEC 61000-4-5 standard waveform |
| ID (Reverse Leakage) | <1 µA at 220 V - Minimal DC loading on signal/power lines during normal operation |
| TJ max. | 150 °C - Enables reliable operation in under-hood automotive and industrial ambient environments |
| MSL Level | Level 1 (per J-STD-020) - No floor life limitation; compatible with standard reflow profiles up to 260 °C peak |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (bidirectional) | One terminal of symmetrical PN junction; accepts surge current in either direction |
| Cathode | Transient current exit point (bidirectional) | Second terminal of symmetrical PN junction; completes low-impedance path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity concerns |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements |
| 400 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 (4 kV) surges when mounted on 5.0 mm × 5.0 mm copper pads |
| Low profile SMA package | 0.208" length × 0.157" width × 0.090" height enables compact placement near IC inputs/outputs |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor interfaces (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pair or supply rail to clamp transients before they reach sensitive front-end amplifiers or communication ICs. Use Value: Prevents latch-up or permanent damage in AEC-Q100 Grade 2 ICs by limiting voltage to ≤328 V during 400 W surges. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and EFT bursts. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V DC input terminals to shunt induced spikes from inductive switching events. Use Value: Maintains system uptime by suppressing >1 kV transients within nanoseconds, avoiding false triggering or firmware resets. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Surge protection on Ethernet PHY side of PoE-powered devices subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping element across transformer-coupled data lines to absorb common-mode transients without distorting signal integrity. Use Value: Ensures IEEE 802.3af/at compliance by limiting clamped voltage below PHY IC absolute maximum ratings during 10/1000 µs tests. |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters protecting USB-C PD controllers and buck regulators. IC Role / Device Role / Timing Role: Standoff-rated TVS across 20–24 V output rails to prevent catastrophic failure during output short-circuit recovery events. Use Value: Limits transient overshoot to 328 V, well below 36 V absolute max rating of typical USB PD interface ICs. |
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 | 600 W PPPM rating, SMB (DO-214AA) package, 15% larger footprint | Higher power handling but requires PCB area increase; same VWM/VBR specs | Select when system-level surge testing exceeds 400 W or higher Ippm margin is required |
| 1.5KE220CA | 1500 W PPPM, axial leaded DO-201AD package, not SMT-compatible | Requires through-hole assembly; unsuitable for automated production or space-constrained boards | Choose only for prototyping or legacy through-hole designs where rework is acceptable |
Compared with SMBJ220CA and 1.5KE220CA, the P4SMA220CAHM3/I offers optimal balance of automotive qualification, SMT manufacturability, and 400 W surge capacity in the smallest standardized surface-mount TVS footprint-making it preferred for high-volume automotive and industrial PCBs where board space and AEC-Q101 compliance are mandatory.
Availability
P4SMA220CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer power adapter designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P4SMA220CAHM3/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific performance.
The P4SMA Series targets cost-sensitive, high-volume transient protection needs in automotive, industrial, and communications systems-designed to deliver robust ESD and surge immunity in compact, qualified surface-mount packages.
FAQ
What is the clamping voltage of P4SMA220CAHM3/I at its rated peak pulse current?
The P4SMA220CAHM3/I has a maximum clamping voltage (VC) of 328 V when subjected to its specified peak pulse current (IPPM) of 0.91 A under the 10/1000 µs waveform condition. This value is measured per Figure 1 in the official Vishay datasheet (Document Number: 88367) and defines the upper voltage limit imposed on protected circuitry during transient events. The P4SMA220CAHM3/I maintains this clamping performance across its operating temperature range and after repeated surge exposures.
Is P4SMA220CAHM3/I suitable for automotive applications?
Yes, the P4SMA220CAHM3/I is AEC-Q101 qualified and explicitly designated for automotive use with the "HM3" suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It passes stress tests including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev D. The P4SMA220CAHM3/I is commonly deployed in engine control units, body electronics, and ADAS sensor modules where transient immunity and long-term reliability are critical.
What does the "CA" suffix mean in P4SMA220CAHM3/I?
The "CA" suffix in P4SMA220CAHM3/I denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities-ideal for protecting AC signals, differential buses (e.g., CAN, RS-485), or ungrounded power rails. Unlike unidirectional variants (e.g., P4SMA220A), the P4SMA220CAHM3/I has no cathode band marking and exhibits identical VBR, VC, and leakage characteristics in forward and reverse directions.
What is the maximum operating temperature for P4SMA220CAHM3/I?
The P4SMA220CAHM3/I has a maximum junction temperature (TJ max.) of +150 °C, verified per AEC-Q101 thermal test requirements. This allows continuous operation in under-hood automotive environments and industrial enclosures where ambient temperatures exceed 105 °C. Derating curves in the datasheet confirm usable power dissipation down to 0 W at 150 °C ambient when mounted on standard 5.0 mm × 5.0 mm copper pads.
Does P4SMA220CAHM3/I require special handling during PCB assembly?
No, the P4SMA220CAHM3/I is rated MSL Level 1 per J-STD-020 and supports standard lead-free reflow profiles with peak temperatures up to 260 °C. It does not require dry pack storage or floor life monitoring. The matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability, and the device is qualified for automated pick-and-place using standard vacuum nozzles-no special tooling or process adjustments are needed for the P4SMA220CAHM3/I.
P4SMA220CAHM3/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:
- 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):
- 910mA
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA220CAHM3/I FAQ
1.How can I place an order for P4SMA220CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA220CAHM3/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 P4SMA220CAHM3/I reliable?
The price and inventory of P4SMA220CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA220CAHM3/I is usually 5 days.
3.What payment methods are accepted for P4SMA220CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA220CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA220CAHM3/I?
P4SMA220CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA220CAHM3/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 P4SMA220CAHM3/I?
For technical support, including P4SMA220CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA220CAHM3/I requirements.
6.How does Aetrix verify that P4SMA220CAHM3/I is sourced from the original manufacturer or authorized distributors?
All P4SMA220CAHM3/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 P4SMA220CAHM3/I meets industry standards.
7.What is the process for return or replacement of P4SMA220CAHM3/I?
All P4SMA220CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA220CAHM3/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 P4SMA220CAHM3/I part is unused and in its original packaging.
Return procedure for P4SMA220CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA220CAHM3/I Tags
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