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Vishay General Semiconductor - Diodes Division P4SMA180A-E3/5A
- Part No.:
- P4SMA180A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA180A-E3/5A.pdf
- Description:
- TVS DIODE 154VWM 246VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA180A-E3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 180 V standoff voltage (VWM), 199.5 V minimum breakdown voltage (VBR), 246 V maximum clamping voltage (VC) at 1.2 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P4SMA180A-E3/5A datasheet, P4SMA180A-E3/5A pinout, P4SMA180A-E3/5A application, or P4SMA180A-E3/5A equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
The P4SMA180A-E3/5A operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (171–189 V at 1 mA test current). Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), enabling suppression of ESD and inductive switching spikes before sensitive downstream circuitry is damaged.
Thermal performance is defined by RθJA = 120 °C/W and RθJL = 30 °C/W, requiring PCB copper pad thermal management per JEDEC standards. The device meets AEC-Q101 qualification when ordered with HE3/HM3 suffixes, though P4SMA180A-E3/5A itself is commercial-grade RoHS-compliant with J-STD-002 solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 154 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 171–189 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transient events. |
| VC (Clamping) | 246 V at IPPM = 1.2 A - Peak voltage seen across protected circuit during 10/1000 µs surge; determines stress on downstream components. |
| PPPM | 400 W - Peak pulse power handling capability under standardized 10/1000 µs waveform; derates above 25 °C ambient. |
| ID (Leakage) | <1.0 µA at VWM - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature rating; supports operation in industrial environments with adequate PCB thermal relief. |
| Package | SMA (DO-214AC) - Surface-mount package with 5.28 mm × 4.50 mm footprint and 2.29 mm height; compatible with standard SMT reflow profiles. |
Pinout & Package
Package: SMA (DO-214AC), molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102; cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; defines unidirectional conduction path toward cathode. |
| Cathode | Avalanche conduction terminal | Connected to higher-potential side (e.g., VBUS or signal line); conducts surge current to ground or rail during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24–48 V DC rails without derating. |
| Glass passivated junction | Ensures long-term stability of VBR and low parametric drift over temperature and lifetime vs. epoxy-passivated alternatives. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking; eliminates moisture-related popcorning risk during assembly. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., relay coil flyback), improving clamping fidelity. |
| Automated placement compatibility | Standardized SMA geometry and lead coplanarity support high-yield pick-and-place at >30,000 UPH in production SMT lines. |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing inductive kickback from solenoid drivers and relay coils in 24 V PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VOUT and GND to clamp transients before they reach DC-DC controller ICs. Use Value: Limits voltage excursion to ≤246 V during 1.2 A surge, preventing latch-up or gate oxide damage in synchronous buck controllers. |
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Standoff-rated TVS on supply rail (VCC) and signal lines (TX/RX) to absorb load dump and ESD events. Use Value: Maintains <1.0 µA leakage at 154 V, avoiding false triggering or offset errors in precision 12-bit ADC inputs. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Safeguarding Ethernet PHYs and PoE injectors against lightning-induced surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC-DC converters and isolation transformers in line card power stages. Use Value: Delivers 400 W pulse handling with <1 ns response, meeting GR-1089-CORE Level 3 telecom surge immunity requirements. |
Use Scenario: Shielding microcontroller GPIOs and H-bridge gate drivers from back-EMF in washing machine motor inverters. IC Role / Device Role / Timing Role: Local TVS on half-bridge supply rails (HS/LS) to prevent shoot-through due to voltage spikes exceeding MOSFET VDS ratings. Use Value: Clamps to 246 V within nanoseconds, keeping transient energy below 100 mJ - well below I²t failure threshold of 600 V MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A | Same VWM (154 V) and VC (246 V), but SMB package (DO-214AA) with larger 7.2 mm × 6.2 mm footprint and 20 % higher RθJA (140 °C/W). | Requires larger PCB area and reduced thermal margin; suitable where board space permits and higher surge repetition rate is needed. | Select SMBJ180A only if existing layout accommodates SMB footprint and thermal design includes ≥100 mm² copper pour per terminal. |
| 1.5SMC180A | Higher PPPM (1500 W), same VWM/VC, but larger SMC (DO-214AB) package (7.7 mm × 6.2 mm) and 2× weight (0.19 g vs. 0.064 g). | Over-specified for 400 W needs; introduces unnecessary cost, size, and parasitic inductance in high-frequency signal paths. | Choose 1.5SMC180A only for legacy designs requiring backward compatibility with SMC footprints or where multi-kW surge testing is mandated. |
Compared with SMBJ180A and 1.5SMC180A, P4SMA180A-E3/5A delivers optimal balance of compact SMA footprint, industry-standard 400 W surge rating, and proven reliability in high-volume industrial SMT production - without over-engineering thermal or mechanical margins.
Availability
P4SMA180A-E3/5A is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor interfaces, telecom line cards, and consumer appliance motor drives requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P4SMA180A-E3/5A 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, efficiency, and manufacturability.
The P4SMA Series targets cost-sensitive, high-volume applications demanding robust transient suppression in compact surface-mount packages - optimized for automated assembly and industrial-grade environmental resilience.
FAQ
What is the maximum clamping voltage of the P4SMA180A-E3/5A under a 10/1000 µs surge?
The P4SMA180A-E3/5A has a maximum clamping voltage (VC) of 246 V at 1.2 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured with the device mounted on 5.0 mm × 5.0 mm copper pads per JEDEC guidelines and represents the highest voltage the protected circuit will experience during such a transient event. The P4SMA180A-E3/5A maintains this clamping performance across its specified operating temperature range.
Is the P4SMA180A-E3/5A suitable for automotive applications?
The P4SMA180A-E3/5A is RoHS-compliant and rated for industrial use, but it is not AEC-Q101 qualified. For automotive applications requiring qualification, Vishay offers the P4SMA180AHE3_A variant (with HE3 suffix), which carries AEC-Q101 certification. The P4SMA180A-E3/5A may be used in non-safety-critical automotive subsystems only after full system-level validation, but the P4SMA180A-E3/5A itself does not meet automotive qualification requirements.
What is the reverse leakage current of the P4SMA180A-E3/5A at its standoff voltage?
The P4SMA180A-E3/5A exhibits a maximum reverse leakage current (ID) of 1.0 µA at its standoff voltage (VWM) of 154 V, measured at 25 °C ambient temperature. This ultra-low leakage ensures minimal impact on high-impedance circuits such as sensor bias networks or precision reference dividers. The P4SMA180A-E3/5A maintains leakage below 5.0 µA up to +85 °C, supporting reliable operation in extended temperature environments.
Does the P4SMA180A-E3/5A have polarity marking, and how is it identified?
Yes, the P4SMA180A-E3/5A is a unidirectional TVS diode and features a cathode band marking on the SMA (DO-214AC) package body. The banded end corresponds to the cathode terminal, while the opposite end is the anode. This polarity must be observed during PCB layout to ensure correct orientation - reverse installation would prevent proper clamping function. The P4SMA180A-E3/5A does not include additional alphanumeric markings beyond the band.
What is the moisture sensitivity level (MSL) rating for the P4SMA180A-E3/5A?
The P4SMA180A-E3/5A is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and can be subjected to standard SMT reflow profiles without pre-baking. This rating is enabled by its robust molding compound and lead finish, making the P4SMA180A-E3/5A ideal for high-throughput automated assembly. The P4SMA180A-E3/5A also meets JESD 201 Class 2 whisker resistance requirements.
P4SMA180A-E3/5A 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):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 1.2A
- 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)
P4SMA180A-E3/5A FAQ
1.How can I place an order for P4SMA180A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA180A-E3/5A 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 P4SMA180A-E3/5A reliable?
The price and inventory of P4SMA180A-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA180A-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA180A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA180A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA180A-E3/5A?
P4SMA180A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA180A-E3/5A 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 P4SMA180A-E3/5A?
For technical support, including P4SMA180A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA180A-E3/5A requirements.
6.How does Aetrix verify that P4SMA180A-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA180A-E3/5A 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 P4SMA180A-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA180A-E3/5A?
All P4SMA180A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA180A-E3/5A, 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 P4SMA180A-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA180A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA180A-E3/5A Tags
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