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Vishay General Semiconductor - Diodes Division TPSMP11AHM3_A/I
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- Part No.:
- TPSMP11AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP11AHM3_A/I.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,622
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Product details
Overview
TPSMP11AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the PAR® family, designed for high-reliability automotive and industrial overvoltage protection. It features a 10.5 V breakdown voltage (VBR), 9.4 V stand-off voltage (VWM), 19.2 A peak pulse current (IPPM), 15.6 V clamping voltage (VC) at IPPM, and AEC-Q101 qualification - deployed to protect sensor signal lines and drive transistors against ESD and surge events.
For engineers reviewing the TPSMP11AHM3_A/I datasheet, TPSMP11AHM3_A/I pinout, TPSMP11AHM3_A/I application, or TPSMP11AHM3_A/I equivalent, key selection criteria include its DO-220AA (SMP) package, 185 °C junction rating, 1.0 mm profile, unidirectional polarity, and 300 W peak pulse power rating at 10/1000 µs waveform.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5). Its junction passivation and MSL Level 1 moisture sensitivity rating support robust reflow compatibility.
The device operates unidirectionally with a cathode band marking, requires no external biasing, and is rated for continuous power dissipation of 2.5 W at 75 °C on infinite heatsink. Thermal derating follows a defined curve up to TJ = 185 °C, supporting under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V - ensures reliable triggering above system operating voltage while avoiding false clamping during normal operation |
| VWM | 9.4 V - maximum reverse stand-off voltage compatible with 9 V nominal supply rails and sensor interfaces |
| VC @ IPPM | 15.6 V - clamping voltage limits downstream IC stress during 19.2 A transient events |
| PPPM | 300 W - peak pulse power handling for 10/1000 µs waveform per IEC 61000-4-5 |
| TJ max | 185 °C - enables deployment in high-temperature automotive engine control and ADAS modules |
| Package | SMP (DO-220AA) - ultra-low-profile surface-mount package with 1.0 mm typical height for space-constrained PCBs |
| AEC-Q101 | Qualified - meets stress test requirements for automotive-grade discrete semiconductors |
Pinout & Package
TPSMP11AHM3_A/I is housed in the SMP (DO-220AA) package: a two-terminal, surface-mount, unidirectional TVS diode with cathode indicated by a color band. The package measures 3.61 mm × 2.18 mm × 1.0 mm (L × W × H), features matte tin-plated leads, and complies with J-STD-002 solderability and JESD 201 Class 2 whisker resistance standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side reference; conducts during forward surge or clamp event |
| Cathode | Reverse-biased protection terminal | Connected to protected line (e.g., CAN_H, LIN, sensor output); blocks VWM and avalanches at VBR |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| Very low profile (1.0 mm typical height) | Reduces board stack height and improves airflow in dense automotive ECUs and ADAS sensor housings |
| MSL Level 1, peak reflow 260 °C | Supports single-pass lead-free reflow without preconditioning or special handling |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for sensitive 3.3 V/5 V logic |
| Unidirectional configuration | Provides asymmetric clamping ideal for DC-biased signal lines such as LIN bus or analog sensor outputs |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Protecting analog output lines of temperature, pressure, and position sensors in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp transients before they reach precision analog circuitry. Use Value: Clamps 15.6 V at 19.2 A, limiting stress on 3.3 V ADC front-end while maintaining <2 µA leakage at 9.4 V to avoid signal offset. | Use Scenario: Safeguarding gate driver inputs and feedback signals in BLDC motor inverters subject to switching-induced dv/dt coupling and inductive kickback. IC Role / Device Role / Timing Role: TVS mounted directly at connector or gate driver IC pins to suppress sub-100 ns spikes generated by MOSFET commutation. Use Value: Sub-1 ns response time and 300 W pulse rating absorb repetitive 50–100 A surge energy without degradation, preserving PWM timing integrity. |
| Automotive LIN Bus Protection | Consumer Power Supply Input Stage |
Use Scenario: Securing LIN transceiver data lines (LIN_H) in body control modules against ESD and battery reversal-induced transients. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN_H and ground, leveraging 9.4 V VWM to remain transparent during 12 V nominal bus operation. Use Value: 15.6 V clamping ensures LIN physical layer remains within ISO 17987-4 fault voltage limits, preventing communication lockup during ±8 kV contact ESD. | Use Scenario: Front-end surge suppression on 9–12 V DC input rails of smart home hubs and IoT gateways powered by wall adapters. IC Role / Device Role / Timing Role: Primary TVS element placed after fuse and before DC-DC converter input to absorb IEC 61000-4-5 Level 3 surges. Use Value: 185 °C TJ rating allows uninterrupted operation in enclosed plastic enclosures where ambient exceeds 85 °C during summer operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | DO-214AC (SMA) package; 10.0 V VBR min; 16.7 V VC; 400 W PPPM; not AEC-Q101 qualified | Larger footprint (4.5 mm × 2.7 mm) and 2.2 mm height limit use in ultra-thin automotive modules | Select when higher pulse power is needed and AEC-Q101 is not required; verify PCB pad layout compatibility |
| TPSMA6.8A | Same AEC-Q101 qualification; DO-214AC package; 6.8 V VBR; 11.5 V VC; 400 W PPPM; 1.0 mm lower VWM (5.8 V) | Lower VWM restricts use to 5 V systems; unsuitable for 9 V sensor rails protected by TPSMP11AHM3_A/I | Select only for 5 V logic-level protection; not a drop-in replacement due to voltage rating mismatch and larger package |
Compared with SMAJ10A and TPSMA6.8A, the TPSMP11AHM3_A/I offers superior board-space efficiency (DO-220AA), guaranteed automotive qualification, and optimal voltage coordination for 9 V sensor and LIN applications - making it the preferred choice where height, reliability, and system-level voltage alignment are critical.
Availability
TPSMP11AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor drive interface, and LIN bus protection requiring stable component supply across production lifecycles.
Supply support for TPSMP11AHM3_A/I 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, power density, and automotive-grade performance.
The TPSMP series belongs to Vishay's PAR® (Protection Against Transients) family, engineered specifically for high-power-density, low-profile transient suppression in harsh automotive and industrial environments where thermal robustness and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage range of the TPSMP11AHM3_A/I?
The TPSMP11AHM3_A/I has a specified breakdown voltage (VBR) range of 10.5 V to 11.6 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent clamping behavior across production lots and supports precise coordination with 9 V system rails and 3.3 V/5 V interface ICs. The value is confirmed in the Electrical Characteristics table of Vishay document 88471.
Is the TPSMP11AHM3_A/I suitable for automotive applications?
Yes, the TPSMP11AHM3_A/I is AEC-Q101 qualified and rated for TJ = 185 °C, making it suitable for under-hood and body-control automotive applications. Its DO-220AA package, MSL Level 1 rating, and halogen-free, RoHS-compliant construction meet stringent automotive manufacturing and reliability requirements. The part marking "HM3_A" explicitly denotes AEC-Q101 qualification per Vishay's ordering nomenclature.
What is the clamping voltage of the TPSMP11AHM3_A/I at its rated peak pulse current?
The TPSMP11AHM3_A/I exhibits a maximum clamping voltage (VC) of 15.6 V at its rated peak pulse current (IPPM) of 19.2 A, tested with a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is critical for ensuring downstream ICs remain within absolute maximum ratings. It is specified in the Electrical Characteristics table of the official datasheet.
Does the TPSMP11AHM3_A/I have polarity marking, and how is it identified?
Yes, the TPSMP11AHM3_A/I features unidirectional polarity with a visible cathode band marked on the package body. Per the mechanical drawing in Vishay document 88471, the color band denotes the cathode terminal, which must be connected toward the protected signal line (e.g., LIN_H or sensor output), while the anode connects to ground. This marking is consistent across all SMP (DO-220AA) packaged devices in the series.
What is the peak pulse power rating of the TPSMP11AHM3_A/I, and under what conditions is it specified?
The TPSMP11AHM3_A/I has a peak pulse power rating (PPPM) of 300 W, specified for a 10/1000 µs double-exponential transient waveform per IEC 61000-4-5, with mounting on a PCB using 5.0 mm × 5.0 mm copper pads per terminal. This rating applies to the full TPSMP7.5A–TPSMP12A subgroup and is validated at TA = 25 °C, with derating applied above that temperature per Figure 2 in the datasheet.
TPSMP11AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 19.2A
- 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-220AA (SMP)
TPSMP11AHM3_A/I FAQ
1.How can I place an order for TPSMP11AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP11AHM3_A/I 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 TPSMP11AHM3_A/I reliable?
The price and inventory of TPSMP11AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP11AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMP11AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP11AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP11AHM3_A/I?
TPSMP11AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP11AHM3_A/I 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 TPSMP11AHM3_A/I?
For technical support, including TPSMP11AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP11AHM3_A/I requirements.
6.How does Aetrix verify that TPSMP11AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMP11AHM3_A/I 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 TPSMP11AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMP11AHM3_A/I?
All TPSMP11AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP11AHM3_A/I, 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 TPSMP11AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMP11AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP11AHM3_A/I Tags
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