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Vishay General Semiconductor - Diodes Division P4SMA100A-E3/5A
- Part No.:
- P4SMA100A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA100A-E3/5A.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,651
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Product details
Overview
P4SMA100A-E3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 100 V standoff voltage (VWM = 85.5 V), 105 V minimum breakdown voltage (VBR), and 400 W peak pulse power (10/1000 µs). It clamps transients to 137 V at 2.2 A peak pulse current and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P4SMA100A-E3/5A datasheet, P4SMA100A-E3/5A pinout, P4SMA100A-E3/5A application, or P4SMA100A-E3/5A equivalent, this device serves as a robust, RoHS-compliant transient suppressor for DC power rails and signal lines where fast response (<1 ns), low clamping voltage, and high surge immunity are required in space-constrained designs.
Technical Context
The P4SMA100A-E3/5A operates as a unidirectional avalanche diode with glass-passivated junction, delivering precise voltage clamping during ESD and lightning-induced surges. Its thermal resistance (RθJA = 120 °C/W) and junction temperature limit (TJ max = 150 °C) support reliable operation on standard PCB copper pads without heatsinking.
It meets J-STD-020 MSL Level 1 and withstands 40 A peak forward surge current (IFSM, 8.3 ms half-sine), making it suitable for protecting MOSFET gates, sensor interfaces, and microcontroller I/O lines against repetitive and non-repetitive transients in industrial and automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 85.5 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 100 V systems. |
| VBR (Breakdown Voltage) | 95.0–105 V at 1 mA - Avalanche onset range ensures consistent turn-on behavior across production lots. |
| VC (Clamping Voltage) | 137 V at IPPM = 2.2 A (10/1000 µs) - Limits transient voltage seen by downstream ICs to safe levels under worst-case surge. |
| PPPM (Peak Pulse Power) | 400 W - Sustains 10/1000 µs transients without degradation when mounted per recommended 5.0 mm × 5.0 mm copper pads. |
| ID (Reverse Leakage) | 1.0 µA at VWM - Negligible standby current preserves battery life and avoids false triggering in low-power circuits. |
| TJ max | 150 °C - Enables operation in under-hood automotive locations and industrial enclosures with elevated ambient temperatures. |
| Package | SMA (DO-214AC) - Surface-mount footprint compatible with automated assembly; cathode band identifies polarity for correct orientation. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1, lead-free (RoHS-compliant E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-voltage reference; forms current path during reverse-biased clamping event. |
| Cathode | High-side connection point | Marked with band; connects to protected line (e.g., 100 V supply rail); conducts avalanche current into ground during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Withstands high-energy transients common in automotive load-dump and industrial switching events without failure. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Glass passivated chip junction | Ensures stable VBR over time and temperature, minimizing parameter drift in long-life embedded applications. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection margin for sensitive ICs. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT reflow profiles without moisture-related damage or delamination. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V/48 V vehicle subsystems (e.g., body control modules, lighting drivers) from ISO 7637-2 load-dump pulses and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp positive-going transients above 85.5 V. Use Value: Limits voltage to ≤137 V during 400 W surges, preventing latch-up or gate oxide damage in downstream PMICs and microcontrollers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation equipment from EFT and surge coupling via long cables. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential or single-ended signal lines to shunt fast transients before reaching ADC inputs. Use Value: Sub-1 ns response and 1.0 µA leakage preserve signal integrity and system power budget while meeting IEC 61000-4-2/4-4 compliance. |
| Telecom DC Power Input Protection | Consumer Device USB/DC Jack Protection |
Use Scenario: Safeguarding PoE-powered network switches and base stations against induced surges from nearby lightning strikes or AC line faults. IC Role / Device Role / Timing Role: Primary clamping device on 48 V DC input rail, coordinated with upstream fuse and common-mode choke. Use Value: 40 A IFSM rating supports repeated surge events without degradation; 150 °C TJ max enables operation in sealed outdoor enclosures. |
Use Scenario: Preventing ESD damage to USB-C or barrel-jack inputs in smart home hubs and portable audio devices during user handling. IC Role / Device Role / Timing Role: First-line defense against ±15 kV contact discharge (IEC 61000-4-2), placed directly at connector entry point. Use Value: SMA package allows placement within 2 mm of connector; low clamping voltage (137 V) protects internal LDOs and USB PHYs without additional series impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A | Same VWM (85.5 V), VC = 137 V, but lower PPPM (400 W vs. P4SMA100A-E3/5A's 400 W), identical SMA package and pinout. | Designed for general-purpose industrial use; not AEC-Q101 qualified. | Select SMAJ100A for cost-sensitive non-automotive applications where automotive qualification is unnecessary. |
| 1.5SMC100A | Higher power rating (1500 W), larger SMC (DO-214AB) package, same VWM/VC specs; requires PCB layout change. | Used in high-energy surge environments (e.g., AC mains front-end, telecom central office) where 400 W is insufficient. | Choose 1.5SMC100A only when surge energy exceeds 400 W capability and board space permits larger footprint. |
Compared with SMAJ100A and 1.5SMC100A, the P4SMA100A-E3/5A uniquely combines AEC-Q101 qualification, industry-standard SMA footprint, and verified 400 W surge handling-making it optimal for automotive and space-constrained industrial designs requiring certified reliability without layout revision.
Availability
P4SMA100A-E3/5A is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial PLC I/O modules, telecom power supplies, and consumer USB-C power delivery circuits requiring stable component supply and full traceability.
Supply support for P4SMA100A-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 application-specific performance.
The P4SMA Series was engineered for high-volume, surface-mount transient suppression in automotive, industrial, and communications systems-prioritizing low profile, AEC-Q101 compliance, and repeatable clamping behavior under real-world surge conditions.
FAQ
What is the maximum clamping voltage of the P4SMA100A-E3/5A under a 10/1000 µs surge?
The P4SMA100A-E3/5A clamps to a maximum of 137 V when subjected to its rated peak pulse current of 2.2 A using the standardized 10/1000 µs waveform. This value is measured at the device terminals under specified test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads) and represents the upper bound of voltage imposed on protected circuitry during transient events.
Is the P4SMA100A-E3/5A suitable for automotive applications?
Yes, the P4SMA100A-E3/5A is AEC-Q101 qualified and explicitly designated for automotive use in Vishay's ordering nomenclature (HE3/HM3 variants). Its construction-including glass-passivated junction, MSL Level 1 rating, and 150 °C maximum junction temperature-meets stringent automotive reliability requirements for engine control units, ADAS sensors, and infotainment power rails.
What does the "-E3/5A" suffix indicate in P4SMA100A-E3/5A?
The "-E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "/5A" specifies packaging in 13-inch diameter plastic tape and reel containing 7500 units. This format supports high-speed SMT placement and aligns with Vishay's standard logistics coding for volume production orders.
How does the P4SMA100A-E3/5A differ from bidirectional TVS diodes like P4SMA100CA?
The P4SMA100A-E3/5A is unidirectional and features a cathode band for polarity-sensitive placement, enabling protection only against positive transients on DC lines. In contrast, P4SMA100CA is bidirectional with no polarity marking and suppresses both positive and negative surges-making it appropriate for AC signal lines or differential buses where voltage reversals occur.
What is the thermal resistance of the P4SMA100A-E3/5A, and how does it affect PCB layout?
The P4SMA100A-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on minimum recommended 5.0 mm × 5.0 mm copper pads per terminal. To maintain safe junction temperatures during repetitive surges, designers must adhere to this pad layout; reducing pad size increases thermal impedance and risks exceeding the 150 °C TJ max limit under sustained stress.
P4SMA100A-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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- 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)
P4SMA100A-E3/5A FAQ
1.How can I place an order for P4SMA100A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA100A-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 P4SMA100A-E3/5A reliable?
The price and inventory of P4SMA100A-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 P4SMA100A-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA100A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA100A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA100A-E3/5A?
P4SMA100A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA100A-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 P4SMA100A-E3/5A?
For technical support, including P4SMA100A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA100A-E3/5A requirements.
6.How does Aetrix verify that P4SMA100A-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA100A-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 P4SMA100A-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA100A-E3/5A?
All P4SMA100A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA100A-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 P4SMA100A-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA100A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA100A-E3/5A Tags
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