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Vishay General Semiconductor - Diodes Division P4SMA11AHE3/5A
- Part No.:
- P4SMA11AHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA11AHE3/5A.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,439
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Product details
Overview
P4SMA11AHE3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 11 V breakdown voltage (VBR = 10.5–11.6 V at IT = 1.0 mA), 15.6 V maximum clamping voltage (VC) at 25.6 A peak pulse current, and 400 W peak pulse power (10/1000 µs waveform). It provides robust ESD and surge protection for low-voltage signal lines in automotive sensor interfaces and industrial control inputs.
For engineers reviewing the P4SMA11AHE3/5A datasheet, P4SMA11AHE3/5A pinout, P4SMA11AHE3/5A application, or P4SMA11AHE3/5A equivalent, key selection criteria include its AEC-Q101 qualification, 9.4 V stand-off voltage (VWM), <5 µA reverse leakage at VWM, and compatibility with automated SMT placement on standard PCB pads.
Technical Context
This TVS diode operates as a unidirectional clamping device: under normal bias it presents high impedance (>1 MΩ) until transient overvoltage exceeds VBR, then rapidly switches to low-impedance conduction to limit voltage across protected circuitry. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
The device complies with J-STD-020 MSL Level 1 (peak reflow ≤260 °C), features matte tin-plated leads, and is qualified to AEC-Q101 for automotive use - confirmed by the "HE3" suffix. Thermal resistance is RθJA = 120 °C/W (typical) on minimum recommended copper pads (0.2" × 0.2"), enabling effective heat dissipation during transient events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V at 1.0 mA test current - defines precise clamping onset threshold for design margining |
| VWM | 9.4 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 15.6 V at 25.6 A - limits transient voltage seen by downstream ICs during 400 W surge |
| IPPM | 25.6 A - peak pulse current capability under standardized 10/1000 µs waveform |
| PPPM | 400 W - surge energy handling capacity without degradation, derated above 25 °C |
| Leakage ID @ VWM | ≤5.0 µA - negligible standby power loss and signal integrity impact in low-power circuits |
| Junction Temp Range | −65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE > VBR |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lowest potential reference plane |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per JEDEC standards |
| Glass passivated junction | Ensures stable VBR tolerance and low parameter drift over lifetime and thermal stress |
| MSL Level 1 rating | Compatible with standard lead-free reflow profiles up to 260 °C peak without preconditioning |
| 400 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) on 12 V supply rails |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for sensitive logic |
Applications
| Automotive Cabin Sensors | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting LIN bus-connected temperature/humidity sensors from load dump and ESD in vehicle cabin modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor signal line and chassis ground to clamp transients before reaching LIN transceiver input. Use Value: Prevents latch-up or damage to 5 V tolerant LIN PHY while maintaining <1 µA leakage at 5.5 V nominal bus voltage. |
Use Scenario: Safeguarding 24 V DC digital input channels of programmable logic controllers against field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff protection device mounted directly at connector entry point to divert >1 kV transients away from optocoupler input stage. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) without external series impedance or filtering. |
| Consumer Appliance Motor Control | Telecom Power Interface |
Use Scenario: Shielding microcontroller GPIOs driving small brushed DC motors in smart home appliances from inductive kickback. IC Role / Device Role / Timing Role: Fast-response clamping diode placed across motor coil terminals and MCU output pin to suppress flyback spikes. Use Value: Limits voltage excursion to ≤15.6 V during 100 ms stall conditions, preventing MCU I/O latch-up or permanent gate oxide damage. |
Use Scenario: Protecting PoE-powered Ethernet switch port DC-DC converter inputs from lightning-induced surges on 48 V supply lines. IC Role / Device Role / Timing Role: Secondary-level TVS used downstream of primary MOV-based protection to handle residual fast-rising transients. Use Value: Provides sub-20 V clamping at 25 A, reducing stress on 60 V-rated buck controller FETs and extending system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | Same VBR range (10.5–11.6 V), but SMB package (DO-214AA); 600 W PPPM; higher thermal mass | Requires larger PCB footprint; better suited for higher-energy surges where board space allows | Select when higher single-pulse energy handling is needed and layout permits larger package |
| 1.5SMC11A | Same VBR, but SMC (DO-214AB) package; 1500 W PPPM; higher IPPM (137 A) | Designed for primary-level protection; not optimized for fine-line signal integrity or dense layouts | Choose for front-end surge suppression where PCB area and thermal budget support larger case |
Compared with SMBJ11A and 1.5SMC11A, P4SMA11AHE3/5A offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and sufficient 400 W surge rating for secondary-side protection in space-constrained automotive and industrial modules.
Availability
P4SMA11AHE3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC input stages, consumer appliance motor drivers, and telecom power interface protection requiring stable component supply and full traceability.
Supply support for P4SMA11AHE3/5A 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, MOSFETs, and protection devices with emphasis on reliability and application-specific performance.
The P4SMA Series is designed for high-reliability transient suppression in automotive, industrial, and consumer electronics - delivering consistent clamping behavior, AEC-Q101 validation, and optimized SMT manufacturability in the SMA package.
FAQ
What is the clamping voltage of P4SMA11AHE3/5A under maximum surge conditions?
The P4SMA11AHE3/5A has a maximum clamping voltage (VC) of 15.6 V when subjected to its rated peak pulse current of 25.6 A using the standardized 10/1000 µs waveform. This value is measured at the device terminals under specified test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The actual clamping level remains stable across temperature due to the device's low temperature coefficient of VBR (0.075 %/°C).
Is P4SMA11AHE3/5A suitable for automotive applications?
Yes, P4SMA11AHE3/5A is explicitly AEC-Q101 qualified, as confirmed by the "HE3" suffix in its ordering code. It meets rigorous automotive reliability requirements including temperature cycling, high-temperature reverse bias, and surge endurance testing. Its operating junction temperature range of −65 °C to +150 °C and MSL Level 1 reflow compatibility make it suitable for engine bay, cabin, and body-control module deployments.
What does the "/5A" suffix indicate in P4SMA11AHE3/5A?
The "/5A" suffix denotes the packaging configuration: 7500 units per 13-inch diameter plastic tape-and-reel. This differs from "/61", which indicates 1800 units per 7-inch reel. The "HE3" portion confirms RoHS-compliant construction and AEC-Q101 qualification, while "11A" specifies the 11 V breakdown variant within the P4SMA family. All electrical and thermal specifications remain identical across reel sizes.
How does P4SMA11AHE3/5A compare to bidirectional TVS diodes like P4SMA11CA?
P4SMA11AHE3/5A is unidirectional and intended for DC-biased lines where polarity is fixed (e.g., 5 V or 12 V supply rails), offering lower leakage and tighter VBR tolerance than its bidirectional counterpart P4SMA11CA. The latter supports AC-coupled or floating signal paths but exhibits higher reverse leakage and symmetric clamping in both directions. Selection depends strictly on circuit topology - P4SMA11AHE3/5A is not interchangeable with P4SMA11CA without verifying bias conditions and leakage constraints.
What is the thermal resistance of P4SMA11AHE3/5A, and how does it affect layout?
The typical junction-to-ambient thermal resistance (RθJA) of P4SMA11AHE3/5A is 120 °C/W when mounted on the minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes no additional heatsinking. To maintain safe junction temperatures during repetitive surges, PCB layout must provide adequate copper area and avoid thermal isolation. Reducing pad size or omitting thermal vias increases RθJA, potentially triggering thermal runaway during sustained transient activity.
P4SMA11AHE3/5A 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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 25.6A
- 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)
P4SMA11AHE3/5A FAQ
1.How can I place an order for P4SMA11AHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA11AHE3/5A 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 P4SMA11AHE3/5A reliable?
The price and inventory of P4SMA11AHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA11AHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA11AHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA11AHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA11AHE3/5A?
P4SMA11AHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA11AHE3/5A 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 P4SMA11AHE3/5A?
For technical support, including P4SMA11AHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA11AHE3/5A requirements.
6.How does Aetrix verify that P4SMA11AHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA11AHE3/5A 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 P4SMA11AHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA11AHE3/5A?
All P4SMA11AHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA11AHE3/5A, 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 P4SMA11AHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA11AHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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