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Vishay General Semiconductor - Diodes Division TPSMA11AHE3_A/H
- Part No.:
- TPSMA11AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA11AHE3_A/H.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,207
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Product details
Overview
TPSMA11AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching and lightning-induced transients on power rails and signal lines. It features a 11.0 V nominal breakdown voltage (VBR), 9.40 V maximum stand-off voltage (VWM), 25.6 V clamping voltage (VC) at 5.0 A peak pulse current, 400 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - deployed in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the TPSMA11AHE3_A/H datasheet, TPSMA11AHE3_A/H pinout, TPSMA11AHE3_A/H application, or TPSMA11AHE3_A/H equivalent, key selection criteria include unidirectional polarity, SMA (DO-214AC) package compatibility, AEC-Q101 qualification status, TJ = 185 °C capability, and verified clamping performance under 10/1000 µs surge conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping linearity during transient events. Its unidirectional configuration enables robust protection of DC power rails and single-polarity signal paths without reverse conduction concerns.
The device is rated for 400 W peak pulse power per 10/1000 µs waveform with 0.01 % duty cycle, and its thermal design supports operation up to +185 °C junction temperature - meeting high-reliability requirements for automotive and industrial environments where sustained elevated ambient temperatures occur.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 10.5 V / 11.0 V / 11.6 V - ensures reliable triggering above 9.40 V operating rail while avoiding false trips during normal transients |
| VWM | 9.40 V - maximum continuous reverse voltage before leakage exceeds 1.0 µA at 25 °C, defining safe operating margin |
| VC @ IPPM | 25.6 V at 5.0 A - limits voltage seen by protected ICs during 10/1000 µs surges, preserving downstream component integrity |
| PPPM | 400 W - sustains standardized lightning/inductive-spike energy without degradation when mounted on 5.0 mm × 5.0 mm copper pads |
| TJ max. | +185 °C - enables use in under-hood automotive modules and high-temperature industrial enclosures without derating |
| Polarity | Unidirectional - suitable for DC supply rail protection where reverse voltage is not expected or must be blocked |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC standard |
Pinout & Package
Package: SMA (DO-214AC) surface-mount case with matte tin-plated leads, UL 94 V-0 molding compound, and cathode band marking. Compliant with J-STD-002 solderability and JESD 22-B102 whisker testing (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; conducts during transient clamp event to shunt surge current away from load |
| Cathode | High-side connection point | Connected to protected line (e.g., 12 V rail); reverse-biased during normal operation, avalanches at VBR during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Reduces leakage drift and improves long-term stability under thermal cycling and humidity exposure |
| 400 W peak pulse power (10/1000 µs) | Handles industry-standard lightning surge waveforms without failure when PCB layout meets recommended pad dimensions |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without moisture-related popcorning or delamination |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive 3.3 V or 5 V logic |
| TJ = 185 °C capability | Supports placement near heat-generating components (e.g., power MOSFETs, DC-DC converters) without thermal derating |
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 ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and chassis ground to clamp transients before they reach the transceiver input stage. Use Value: Maintains signal integrity during 10/1000 µs surges up to 400 W while operating reliably at +125 °C ambient under hood. | Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to relay coil flyback and motor drive noise in factory automation systems. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across input terminals to absorb repetitive inductive spikes without degrading response time. Use Value: Delivers consistent 25.6 V clamping at 5.0 A with <1 ns response, preventing false triggering of microcontroller GPIOs. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters subjected to lightning-induced surges on DC output lines feeding USB-C PD or PoE-powered devices. IC Role / Device Role / Timing Role: Unidirectional TVS installed between +5 V/+9 V/+12 V output and GND to limit transient excursions during surge events. Use Value: Withstands 40 A non-repetitive forward surge (IFSM) and maintains 9.40 V VWM, ensuring no conduction during normal regulation. | Use Scenario: Protecting Ethernet PHY interfaces and DSL line drivers against induced surges on twisted-pair telecom lines in residential gateways and base stations. IC Role / Device Role / Timing Role: Bidirectional-capable system uses two TPSMA11AHE3_A/H diodes in series opposition for differential-mode clamping on data pairs. Use Value: Achieves sub-26 V clamping window with matched VBR tolerance (±0.5 V), minimizing common-mode distortion during surge events. |
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 range (10.5–11.6 V), but SMB (DO-214AA) package; 600 W PPPM; higher IPPM (6.8 A) | Larger footprint; better suited for higher-energy surges where board space allows | Select when surge energy exceeds 400 W and PCB layout accommodates wider body |
| 1.5SMC11A | Same VBR, but SMC (DO-214AB) package; 1500 W PPPM; 13.3 A IPPM; higher VC (18.2 V) | Requires larger pad layout; used in primary-side AC line protection and high-power industrial drives | Choose for front-end AC/DC input stages where higher clamping voltage is acceptable and energy rating is critical |
Compared with SMBJ11A and 1.5SMC11A, the TPSMA11AHE3_A/H offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and precise 25.6 V clamping - making it preferred for space-constrained automotive and industrial control modules where reliability and thermal robustness are prioritized over raw power rating.
Availability
TPSMA11AHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and consumer power adapter designs requiring stable component supply, AEC-Q101 compliance, and high-temperature operational assurance.
Supply support for TPSMA11AHE3_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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The TPSMA11AHE3_A/H belongs to Vishay's PAR® TVS family, engineered specifically for high-temperature, high-reliability transient suppression in automotive, industrial, and telecom infrastructure where sustained thermal stress and stringent qualification are mandatory.
FAQ
What is the clamping voltage of the TPSMA11AHE3_A/H at its rated peak pulse current?
The TPSMA11AHE3_A/H has a maximum clamping voltage (VC) of 25.6 V at 5.0 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured with the device mounted on PCB copper pads per the recommended layout (0.2" × 0.2") and defines the upper voltage limit imposed on protected circuitry during surge events. The TPSMA11AHE3_A/H maintains this clamping performance across its full operating temperature range.
Is the TPSMA11AHE3_A/H qualified to AEC-Q101 standards?
Yes, the TPSMA11AHE3_A/H is AEC-Q101 qualified. As indicated in the Vishay datasheet (Document Number: 88405), the HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified construction. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and electrostatic discharge - confirming suitability for automotive electronic control units and under-hood applications.
What does the "HE3" suffix mean in TPSMA11AHE3_A/H?
The "HE3" suffix in TPSMA11AHE3_A/H identifies a RoHS-compliant, AEC-Q101 qualified version with matte tin-plated leads that meet J-STD-002 solderability and JESD 22-B102 class 2 whisker resistance. The "_A/H" denotes revision code A and packaging in 7" tape-and-reel (H = 1800 units per reel). This suffix differentiates it from HM3 (halogen-free) and non-qualified base variants.
Can the TPSMA11AHE3_A/H be used in bidirectional protection configurations?
No, the TPSMA11AHE3_A/H is unidirectional only, as explicitly stated in the Vishay datasheet. It is intended for DC rail or single-polarity signal line protection. For bidirectional applications (e.g., AC lines or differential data buses), two TPSMA11AHE3_A/H devices may be connected in series opposition, but a purpose-built bidirectional TVS such as SMBJ11CA would be more appropriate and space-efficient.
What is the maximum operating junction temperature for the TPSMA11AHE3_A/H?
The TPSMA11AHE3_A/H has a maximum operating junction temperature (TJ) of +185 °C, enabling deployment in high-thermal-stress environments such as automotive engine control modules and industrial motor drives. This rating is validated per the manufacturer's test conditions and remains valid under specified power dissipation and PCB thermal management per the datasheet's derating curves.
TPSMA11AHE3_A/H 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
TPSMA11AHE3_A/H FAQ
1.How can I place an order for TPSMA11AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA11AHE3_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 TPSMA11AHE3_A/H reliable?
The price and inventory of TPSMA11AHE3_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 TPSMA11AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMA11AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA11AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA11AHE3_A/H?
TPSMA11AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA11AHE3_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 TPSMA11AHE3_A/H?
For technical support, including TPSMA11AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA11AHE3_A/H requirements.
6.How does Aetrix verify that TPSMA11AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMA11AHE3_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 TPSMA11AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMA11AHE3_A/H?
All TPSMA11AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA11AHE3_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 TPSMA11AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMA11AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA11AHE3_A/H Tags
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