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Vishay General Semiconductor - Diodes Division P4SMA11AHE3/61
- Part No.:
- P4SMA11AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA11AHE3/61.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,880
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Product details
Overview
P4SMA11AHE3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 11 V breakdown voltage (VBR = 10.5–11.6 V at 1 mA), 9.4 V standoff voltage (VWM), 15.6 V clamping voltage (VC) at 25.6 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and DC power rail surge suppression.
For engineers reviewing the P4SMA11AHE3/61 datasheet, P4SMA11AHE3/61 pinout, P4SMA11AHE3/61 application, or P4SMA11AHE3/61 equivalent, key selection criteria include its AEC-Q101 qualification, SMA (DO-214AC) package compatibility, unidirectional polarity with cathode band marking, and verified 150 °C maximum junction temperature for under-hood and high-reliability embedded systems.
Technical Context
The P4SMA11AHE3/61 operates as a clamping-type TVS diode with avalanche breakdown behavior, triggered when reverse voltage exceeds its 10.5–11.6 V breakdown threshold. Its glass-passivated junction ensures stable leakage performance (<5 µA at VWM) and fast response time (<1 ns), enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes.
Thermally, it exhibits RθJA = 120 °C/W (junction-to-ambient) and RθJL = 30 °C/W (junction-to-lead), supporting operation up to 150 °C junction temperature. Its 40 A IFSM rating (8.3 ms half-sine) and MSL Level 1 moisture sensitivity confirm suitability for reflow assembly without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V at 1 mA - defines precise avalanche initiation range for repeatable clamping onset |
| VWM | 9.4 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 15.6 V at 25.6 A - clamped voltage during 400 W transient, limiting downstream IC stress |
| PPPM | 400 W (10/1000 µs) - peak surge energy handling capacity for short-duration transients |
| IFSM | 40 A (8.3 ms half-sine) - surge current tolerance for power-line fault events |
| TJ max | +150 °C - enables deployment in under-hood automotive and industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads; meets UL 94 V-0, J-STD-002 solderability, and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side in unidirectional configuration; carries forward surge current |
| Cathode (marked by band) | Reverse-biased clamping terminal | Connected to protected line; conducts avalanche current during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor modules |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<5 µA) across temperature and lifetime |
| 400 W peak pulse power | Handles ISO 7637-2 Pulse 1/2a/5a transients without degradation in 12 V/24 V systems |
| MSL Level 1 rating | Allows direct placement on PCB without baking or dry-pack handling prior to reflow |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving system-level EMI resilience |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and ground, activated within <1 ns of overvoltage event. Use Value: Limits transient voltage to ≤15.6 V, preventing damage to 5 V/3.3 V interface ICs while maintaining signal integrity. |
Use Scenario: Safeguarding 24 V digital input modules against field-wiring induced surges and relay contact bounce in factory automation. IC Role / Device Role / Timing Role: Primary front-end protection device on isolated input channels, absorbing repetitive 400 W pulses per IEC 61000-4-5. Use Value: Enables >100,000 surge cycles without parameter shift, reducing maintenance downtime in harsh industrial settings. |
| DC Power Rail Clamping | Consumer Device USB Port Protection |
Use Scenario: Secondary overvoltage clamp on 12 V DC input rails of embedded gateways and PoE-powered devices. IC Role / Device Role / Timing Role: Standby protection element parallel to bulk capacitor, conducting only during transient excursions above 9.4 V. Use Value: Prevents upstream buck converter latch-up and downstream LDO overvoltage failure during hot-swap or cable discharge events. |
Use Scenario: ESD and surge protection on VBUS and D+/D− lines of USB 2.0 ports in smart home hubs and portable audio gear. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) unidirectional suppressor placed before USB transceiver, compliant with IEC 61000-4-2 Level 4. Use Value: Maintains signal rise/fall times <1 ns while suppressing ±15 kV contact ESD without data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A | Same VBR (10.5–11.6 V), identical SMA package, but not AEC-Q101 qualified; higher VC (16.0 V) | Limited to commercial/industrial use; unsuitable for automotive OEM designs requiring qualification evidence | Select SMAJ11A only for cost-sensitive non-automotive applications where AEC-Q101 is not mandated |
| 1.5SMC11A | Higher PPPM (1500 W), larger SMC (DO-214AB) package, same VBR/VC specs | Requires PCB layout change due to 7.1 mm × 6.2 mm footprint vs. SMA's 4.5 mm × 2.8 mm | Choose 1.5SMC11A when system-level surge requirements exceed 400 W, accepting larger board area |
Compared with SMAJ11A and 1.5SMC11A, the P4SMA11AHE3/61 uniquely combines AEC-Q101 compliance, compact SMA footprint, and precise 15.6 V clamping - making it optimal for space-constrained automotive electronics where qualification and thermal performance are non-negotiable.
Availability
P4SMA11AHE3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, DC power rail clamping, and consumer USB port protection requiring stable component supply across production lifecycles.
Supply support for P4SMA11AHE3/61 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 optimization.
The P4SMA Series targets high-volume, high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for AEC-Q101 compliance, automated assembly, and consistent clamping performance across temperature and life.
FAQ
What is the clamping voltage of P4SMA11AHE3/61 at its rated peak pulse current?
The P4SMA11AHE3/61 has a maximum clamping voltage (VC) of 15.6 V at its rated peak pulse current (IPPM) of 25.6 A, measured using the standard 10/1000 µs waveform. This value ensures protected circuits remain below critical voltage thresholds during surge events, and is confirmed in the Vishay P4SMA datasheet revision 09-Jan-2024, page 2.
Is P4SMA11AHE3/61 suitable for automotive applications?
Yes, P4SMA11AHE3/61 is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD verification - making it appropriate for engine control units, body electronics, and ADAS sensor interfaces where reliability is mandatory.
What does the "HE3" suffix indicate in P4SMA11AHE3/61?
The "HE3" suffix in P4SMA11AHE3/61 denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads meeting J-STD-002 solderability standards. It distinguishes this variant from commercial-grade "E3" parts and confirms compliance with automotive reliability and environmental requirements.
How does P4SMA11AHE3/61 differ from bidirectional variants like P4SMA11CA?
P4SMA11AHE3/61 is unidirectional, featuring a cathode band for polarity-sensitive placement and optimized for DC line protection. In contrast, P4SMA11CA is bidirectional with symmetric clamping in both directions and no polarity marking - used for AC signal lines or differential buses where voltage polarity reverses, such as RS-485 or antenna feeds.
What is the maximum junction temperature rating for P4SMA11AHE3/61?
The P4SMA11AHE3/61 has a maximum junction temperature (TJ) rating of +150 °C, enabling reliable operation in under-hood automotive environments and thermally demanding industrial enclosures. This rating is specified in the Absolute Maximum Ratings table of the official Vishay P4SMA datasheet (Document Number: 88367).
P4SMA11AHE3/61 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)
P4SMA11AHE3/61 FAQ
1.How can I place an order for P4SMA11AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA11AHE3/61 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 P4SMA11AHE3/61 reliable?
The price and inventory of P4SMA11AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA11AHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA11AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA11AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA11AHE3/61?
P4SMA11AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA11AHE3/61 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 P4SMA11AHE3/61?
For technical support, including P4SMA11AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA11AHE3/61 requirements.
6.How does Aetrix verify that P4SMA11AHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA11AHE3/61 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 P4SMA11AHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA11AHE3/61?
All P4SMA11AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA11AHE3/61, 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 P4SMA11AHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA11AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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