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Vishay General Semiconductor - Diodes Division P4SMA100AHE3_A/H
- Part No.:
- P4SMA100AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA100AHE3_A/H.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA100AHE3_A/H 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), 105 V minimum breakdown voltage (VBR), and 137 V maximum clamping voltage (VC) at 2.2 A peak pulse current (IPPM), designed to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges in automotive and industrial power electronics.
For engineers reviewing the P4SMA100AHE3_A/H datasheet, P4SMA100AHE3_A/H pinout, P4SMA100AHE3_A/H application, or P4SMA100AHE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, 400 W peak pulse power (10/1000 µs), low 0.01 % duty cycle rating, 150 °C max junction temperature, and RoHS-compliant matte tin-plated leads suitable for J-STD-002 soldering.
Technical Context
The P4SMA100AHE3_A/H operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated silicon junction technology for stable avalanche behavior under repetitive transient stress. Its thermal resistance (RθJA = 120 °C/W) and RθJL = 30 °C/W enable reliable operation on standard 0.2" × 0.2" copper pads without forced cooling.
It delivers 400 W peak pulse power per 10/1000 µs waveform up to 91 V, derating to 300 W above 91 V - confirmed for P4SMA100A in Table 1 - and maintains <1 μA reverse leakage at 85.5 V (VWM), ensuring minimal standby power loss in protected circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 85.5 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 95.0–105 V at 1 mA - Ensures predictable, repeatable avalanche initiation during overvoltage events |
| VC (Clamping Voltage) | 137 V at IPPM = 2.2 A - Limits voltage seen by downstream components during worst-case surge |
| PPPM (Peak Pulse Power) | 400 W (≤91 V), 300 W (>91 V) - Sustains high-energy transients without failure under standardized 10/1000 µs waveform |
| ID (Reverse Leakage) | 1.0 μA at VWM - Minimizes quiescent current draw in always-on protection circuits |
| TJ max | 150 °C - Enables use in under-hood automotive environments and thermally constrained industrial PCBs |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
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; meets UL 94 V-0 flammability rating and MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference | Provides low-impedance path to ground during transient clamping; must be routed with minimal inductance |
| Cathode | Current exit terminal in forward bias; marked with band; connects to protected line | Defines unidirectional polarity - protects only against positive transients on the cathode side relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| 400 W Peak Pulse Power (10/1000 µs) | Handles high-energy surges common in automotive load-dump and industrial motor switching without degradation |
| Glass Passivated Junction | Ensures long-term stability of VBR and leakage across temperature and lifetime, critical for automotive field reliability |
| AEC-Q101 Qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| Low Incremental Surge Resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection fidelity |
| MSL Level 1 Moisture Sensitivity | Allows unlimited floor life and standard reflow without baking, reducing manufacturing complexity |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in vehicle ECUs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input to clamp surges before they reach regulator ICs. Use Value: Clamps to 137 V at 2.2 A, limiting stress on downstream 40 V-rated buck converters and preserving system uptime. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA current loops) of pressure/temperature sensors from ESD and cable-induced transients. IC Role / Device Role / Timing Role: TVS placed across sensor output and ground to shunt fast transients while maintaining signal integrity. Use Value: Sub-μA leakage at 85.5 V ensures no measurable offset error in precision current-loop circuits. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Safeguarding Ethernet PHY power pins and auxiliary bias rails against lightning-induced surges on outdoor telecom equipment. IC Role / Device Role / Timing Role: Primary clamping device on +3.3 V or +5 V supply lines feeding PHY ICs and magnetics. Use Value: 150 °C TJ max and AEC-Q101 qualification support extended outdoor deployment in uncontrolled ambient conditions. |
Use Scenario: Secondary-side overvoltage protection on AC-DC adapter outputs (e.g., 12 V USB-PD accessories) against capacitor failure or feedback loop faults. IC Role / Device Role / Timing Role: Final-stage TVS between regulator output and connector to prevent hazardous voltages reaching end-user ports. Use Value: 137 V clamping ensures compliance with IEC 62368-1 touch-safe limits even during sustained fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/5A | Same SMA package, 100 V VWM, but rated for 400 W only ≤91 V; no AEC-Q101 qualification; higher ID (5 μA) | Commercial-grade only; not approved for automotive production; requires additional validation for harsh environments | Select when cost sensitivity outweighs automotive qualification requirements and thermal derating is managed externally |
| 1.5SMC100A | Higher-power SMC package (1500 W), same 100 V VWM, but larger footprint (7.11 × 6.22 mm vs. SMA's 4.5 × 2.79 mm); non-AEC-Q101 | Used where surge energy exceeds 400 W or board space allows larger package; unsuitable for dense automotive modules | Choose only if system-level testing confirms 1500 W capability is required and layout accommodates SMC dimensions |
Compared with SMAJ100A-E3/5A and 1.5SMC100A, P4SMA100AHE3_A/H uniquely combines AEC-Q101 qualification, compact SMA footprint, and verified 300 W capability above 91 V - making it the only drop-in solution for space-constrained automotive modules requiring production-grade reliability.
Availability
P4SMA100AHE3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface design, telecom line protection, and consumer power adapter safety-critical applications requiring stable component supply and long-term lifecycle continuity.
Supply support for P4SMA100AHE3_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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, industry-qualified components for automotive, industrial, and computing markets.
The P4SMA Series targets cost-sensitive yet reliability-demanding transient protection needs, delivering AEC-Q101 qualified TVS diodes in compact SMA packages optimized for automated SMT assembly and under-hood thermal environments.
FAQ
What is the clamping voltage of P4SMA100AHE3_A/H at its rated peak pulse current?
The P4SMA100AHE3_A/H has a maximum clamping voltage (VC) of 137 V at its specified peak pulse current (IPPM) of 2.2 A under the 10/1000 µs waveform. This value is measured per Figure 1 and Table 1 of the Vishay datasheet (Doc. #88367, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during surge events. The P4SMA100AHE3_A/H maintains this clamping performance across its qualified operating temperature range.
Is P4SMA100AHE3_A/H qualified for automotive applications?
Yes, P4SMA100AHE3_A/H is explicitly AEC-Q101 qualified, as confirmed in the "MECHANICAL DATA" section and ordering table footnote (1) of the Vishay P4SMA datasheet. The "HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified construction, validated for automotive use cases including engine control, body electronics, and ADAS sensor interfaces. This qualification covers stress tests such as temperature cycling, high-temperature reverse bias, and ESD.
What does the "_A/H" suffix mean in P4SMA100AHE3_A/H?
The "_A/H" suffix in P4SMA100AHE3_A/H indicates two attributes: "A" denotes the revision level (per footnote 1: "_A is available for P4SMA6.8(C)A to P4SMA220(C)A"), and "H" specifies the packaging format - 7-inch diameter plastic tape and reel with 1800 units per reel (see ORDERING INFORMATION table). This distinguishes it from "_A/I", which uses 13-inch reels with 7500 units. The P4SMA100AHE3_A/H is therefore a revision-A, AEC-Q101 qualified, tape-and-reel packaged part.
How does P4SMA100AHE3_A/H differ from bidirectional variants like P4SMA100CA?
P4SMA100AHE3_A/H is unidirectional, with polarity marked by a cathode band and intended for clamping positive transients only (anode grounded). In contrast, P4SMA100CA is bidirectional - symmetrical, unmarked, and capable of suppressing both positive and negative transients. Electrical specs differ: P4SMA100CA has lower VWM (77.8 V) and VBR (86.5–95.5 V), and its clamping occurs in both directions. The P4SMA100AHE3_A/H is not interchangeable with P4SMA100CA without circuit redesign.
What is the thermal resistance of P4SMA100AHE3_A/H, and how does it affect PCB layout?
The P4SMA100AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead resistance (RθJL) of 30 °C/W, measured on 0.2" × 0.2" copper pads per JEDEC standards. To maintain safe operation at full 400 W pulse rating, PCB layout must use minimum recommended pad dimensions (per DO-214AC outline), avoid excessive copper isolation, and ensure adequate airflow or adjacent thermal mass. Exceeding TJ = 150 °C risks parametric shift or failure.
P4SMA100AHE3_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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA100AHE3_A/H FAQ
1.How can I place an order for P4SMA100AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA100AHE3_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 P4SMA100AHE3_A/H reliable?
The price and inventory of P4SMA100AHE3_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 P4SMA100AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P4SMA100AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA100AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA100AHE3_A/H?
P4SMA100AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA100AHE3_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 P4SMA100AHE3_A/H?
For technical support, including P4SMA100AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA100AHE3_A/H requirements.
6.How does Aetrix verify that P4SMA100AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P4SMA100AHE3_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 P4SMA100AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P4SMA100AHE3_A/H?
All P4SMA100AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA100AHE3_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 P4SMA100AHE3_A/H part is unused and in its original packaging.
Return procedure for P4SMA100AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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