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Vishay General Semiconductor - Diodes Division TPSMA11HE3/5AT
- Part No.:
- TPSMA11HE3/5AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA11HE3/5AT.pdf
- Description:
- TVS DIODE 8.92VWM 16.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,255
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Product details
Overview
TPSMA11HE3/5AT 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 11.0 V nominal breakdown voltage (VBR), 9.40 V stand-off voltage (VWM), 25.6 V maximum clamping voltage (VC) at 5.0 A peak pulse current, 400 W peak pulse power (10/1000 µs), and 185 °C maximum junction temperature - deployed in automotive sensor protection and industrial I/O interfaces.
For engineers reviewing the TPSMA11HE3/5AT datasheet, TPSMA11HE3/5AT pinout, TPSMA11HE3/5AT application, or TPSMA11HE3/5AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, clamping performance under 10/1000 µs surge, thermal derating above 25 °C, and compatibility with standard SMA PCB pad layouts per JESD22-B102 solderability requirements.
Technical Context
This TVS diode operates as a voltage-clamping protection device using passivated anisotropic rectifier technology. Its unidirectional configuration enables forward-biased conduction during overvoltage events on DC-biased lines, with clamping action triggered when reverse voltage exceeds 11.0 V (VBR min 10.5 V).
It delivers stable performance up to 185 °C junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The device is qualified to AEC-Q101 and uses matte tin-plated leads compliant with J-STD-002 and JESD22-B102 whisker testing (Class 2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 10.5 V / 11.0 V / 11.6 V - defines precise voltage threshold at which clamping initiates under 1.0 mA test current |
| VWM | 9.40 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 25.6 V at 5.0 A - clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 400 W - peak transient power handling capability without failure under standardized waveform |
| TJ max | +185 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| Polarity | Unidirectional - suitable for DC-biased lines where reverse conduction must be blocked until clamping threshold |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with cathode band marking and 0.2" × 0.2" copper pad requirement |
Pinout & Package
SMA (DO-214AC) package with axial lead configuration: molded plastic body, matte tin-plated terminals, cathode indicated by color band. Mounting requires 5.0 mm × 5.0 mm copper pads per terminal per Vishay recommended layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VREV > VBR |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR and low leakage (<1.0 µA at VWM) across -65 °C to +185 °C operating range |
| AEC-Q101 qualification (HE3 suffix) | Validated reliability for automotive applications including engine control modules and ADAS sensor interfaces |
| 400 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV) on 50 Ω source impedance lines |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free assembly without moisture-related popcorning or delamination |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Clamping diode placed between signal line and chassis ground to limit voltage excursion to ≤25.6 V during 10/1000 µs surges. Use Value: Prevents latch-up or permanent damage to 12 V-tolerant interface ICs while maintaining <1.0 µA leakage at 9.4 V nominal supply. | Use Scenario: Safeguarding digital input channels of programmable logic controllers against field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS connected across 24 V DC input terminals to clamp transients before they reach optocoupler or Schmitt-trigger input stages. Use Value: Ensures reliable operation under repetitive 400 W surges without degradation, supported by 185 °C thermal rating for enclosed cabinet environments. |
| Consumer Power Adapter Protection | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for USB-C PD and laptop chargers exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between +5 V/9 V/15 V output rail and ground to absorb energy from coupled transients on secondary winding. Use Value: Maintains 9.4 V VWM margin above typical 5–12 V outputs while delivering 25.6 V clamping to protect synchronous rectifiers and post-regulator ICs. | Use Scenario: Protection of Ethernet PHY interface pins (e.g., MDI pairs) against ESD and fast transient bursts in VoIP gateways and base station backhaul units. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS used in conjunction with common-mode chokes to suppress differential-mode surges on twisted-pair lines. Use Value: Provides sub-30 V clamping within 1 ns response time, meeting IEC 61000-4-2 Level 4 (15 kV air/8 kV contact) without signal integrity impact. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | Same VBR (10.5–11.6 V), but SMB package (DO-214AA); 600 W PPPM, higher IPPM (33.3 A) | Higher power handling suits heavier industrial surges; larger footprint may conflict with dense layouts | Select when surge energy exceeds 400 W or board space allows SMB outline |
| 1.5SMC11A | Same VBR range, SMC (DO-214AB) package; 1500 W PPPM, 123 A IPPM, higher VC (18.2 V) | Designed for primary-side AC line protection; not AEC-Q101 qualified | Choose only for non-automotive, high-energy AC applications requiring >1 kW surge rating |
Compared with SMBJ11A and 1.5SMC11A, the TPSMA11HE3/5AT offers AEC-Q101 qualification and optimal size-to-power ratio for space-constrained automotive and industrial PCBs, with verified 185 °C operation and MSL Level 1 reflow compatibility - making it preferred for mission-critical embedded sensor nodes.
Availability
TPSMA11HE3/5AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TPSMA11HE3/5AT 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, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The TPSMA series is part of Vishay's PAR® (Protected Anisotropic Rectifier) transient voltage suppressor family, engineered specifically for robust, high-temperature clamping in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the breakdown voltage tolerance for TPSMA11HE3/5AT?
The TPSMA11HE3/5AT has a specified breakdown voltage (VBR) range of 10.5 V (minimum) to 11.6 V (maximum) at 1.0 mA test current, with 11.0 V as the nominal value. This ±5% tolerance ensures consistent clamping behavior across production lots and supports reliable overvoltage detection in safety-critical circuits where precise trip thresholds are required.
Is TPSMA11HE3/5AT qualified for automotive use?
Yes, the TPSMA11HE3/5AT carries the HE3 suffix, indicating RoHS-compliant construction and full AEC-Q101 qualification. It is tested for mechanical shock, temperature cycling, humidity bias, and high-temperature operating life per AEC-Q101 standards - making it suitable for under-hood and cabin-mounted automotive electronics including ADAS sensors and body control modules.
What is the maximum clamping voltage of TPSMA11HE3/5AT under surge conditions?
The TPSMA11HE3/5AT exhibits a maximum clamping voltage (VC) of 25.6 V when subjected to a 5.0 A peak pulse current with a 10/1000 µs waveform. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during standardized surge events, ensuring compatibility with 24 V tolerant interface ICs.
Does TPSMA11HE3/5AT support lead-free reflow assembly?
Yes, TPSMA11HE3/5AT is rated MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C. Its matte tin-plated leads meet J-STD-002 and JESD22-B102 whisker testing (Class 2), enabling compatibility with standard lead-free solder processes without preconditioning or special handling.
How does the thermal performance of TPSMA11HE3/5AT compare to standard TVS diodes?
The TPSMA11HE3/5AT supports a maximum junction temperature (TJ) of +185 °C - significantly higher than typical 150 °C ratings for commercial-grade TVS diodes. This extended range enables reliable operation in high-ambient environments such as engine compartments or sealed industrial enclosures, with derating curves provided in Figure 2 of the datasheet (Document 88405).
TPSMA11HE3/5AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.92V
- Voltage - Breakdown (Min):
- 9.9V
- Voltage - Clamping (Max) @ Ipp:
- 16.2V
- Current - Peak Pulse (10/1000µs):
- 24.7A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
TPSMA11HE3/5AT FAQ
1.How can I place an order for TPSMA11HE3/5AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA11HE3/5AT 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 TPSMA11HE3/5AT reliable?
The price and inventory of TPSMA11HE3/5AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA11HE3/5AT is usually 5 days.
3.What payment methods are accepted for TPSMA11HE3/5AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA11HE3/5AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA11HE3/5AT?
TPSMA11HE3/5AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA11HE3/5AT 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 TPSMA11HE3/5AT?
For technical support, including TPSMA11HE3/5AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA11HE3/5AT requirements.
6.How does Aetrix verify that TPSMA11HE3/5AT is sourced from the original manufacturer or authorized distributors?
All TPSMA11HE3/5AT 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 TPSMA11HE3/5AT meets industry standards.
7.What is the process for return or replacement of TPSMA11HE3/5AT?
All TPSMA11HE3/5AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA11HE3/5AT, 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 TPSMA11HE3/5AT part is unused and in its original packaging.
Return procedure for TPSMA11HE3/5AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA11HE3/5AT Tags
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