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Vishay General Semiconductor - Diodes Division TPSMP11AHM3/85A
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- Part No.:
- TPSMP11AHM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP11AHM3/85A.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,406
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Product details
Overview
TPSMP11AHM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability automotive and industrial overvoltage protection. It features a 10.5 V to 11.6 V breakdown voltage (VBR), 19.2 A peak pulse current (IPPM), 15.6 V clamping voltage (VC) at IPPM, 2.5 W steady-state power dissipation, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the TPSMP11AHM3/85A datasheet, TPSMP11AHM3/85A pinout, TPSMP11AHM3/85A application, or TPSMP11AHM3/85A equivalent, this device is selected for robust ESD/surge protection on low-voltage DC rails-especially where space-constrained PCBs require ultra-low-profile (1.0 mm height), high-temperature (TJ = 185 °C) TVS performance with MSL Level 1 reflow compatibility.
Technical Context
The TPSMP11AHM3/85A employs passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced transients (10/1000 μs waveform). Its unidirectional polarity supports DC-biased signal and power line protection without reverse conduction during normal operation.
Thermal design leverages its 185 °C maximum junction temperature and 2.5 W power dissipation rating on infinite heatsink, while its DO-220AA package provides mechanical robustness and automated placement compatibility. The device meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V - defines minimum trigger threshold and maximum variation across production lot at 1 mA test current |
| VC @ IPPM | 15.6 V - maximum voltage seen by protected circuit during 19.2 A 10/1000 μs surge, critical for IC-level clamp margin |
| IPPM | 19.2 A - peak surge current capability under standard 10/1000 μs waveform, derated above 25 °C per fig. 2 |
| VWM | 9.40 V - maximum continuous reverse operating voltage before leakage exceeds 2 μA, sets usable DC rail margin |
| TJ max | +185 °C - enables deployment in under-hood automotive environments and high-power industrial enclosures |
| Package | DO-220AA (SMP) - 1.0 mm typical height, 3.61 mm × 2.18 mm footprint, halogen-free, RoHS-compliant, AEC-Q101 qualified |
| Mounting | Matte tin-plated leads, solderable per J-STD-002/JESD22-B102, MSL Level 1 (260 °C peak) |
Pinout & Package
DO-220AA (SMP) surface-mount package with cathode indicated by color band; two-terminal device with no internal connections beyond anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC return path for surge current | Connected to ground or low-impedance return plane; carries full transient current during clamping |
| Cathode | Protected line connection point | Connected to line being protected (e.g., 12 V supply rail); voltage referenced to anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR tolerance (±5 %) and low dynamic impedance across temperature and lifetime |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, UHAST, and mechanical shock testing |
| 1.0 mm typical height | Reduces board real estate and improves airflow in stacked or sealed enclosures without sacrificing surge rating |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, preserving margin for downstream 12 V logic ICs |
| MSL Level 1 rating | Supports single-pass lead-free reflow at 260 °C without preconditioning or dry-pack requirements |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting 12 V supply lines feeding microcontrollers and CAN transceivers in door modules and lighting controllers. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fused 12 V rail and local LDO input to clamp load-dump and ISO 7637-2 Pulse 5a/b surges. Use Value: Withstands 185 °C ambient and maintains <2 μA leakage at 9.4 V, ensuring low quiescent current and long-term stability in sealed housings. | Use Scenario: Safeguarding 24 V digital input channels against field-wiring induced transients in factory automation systems. IC Role / Device Role / Timing Role: Front-end TVS on optocoupler input side, shunting surges before signal conditioning circuitry. Use Value: 15.6 V clamping ensures protected optocoupler remains below absolute maximum ratings even during 19.2 A surge events. |
| Consumer Appliance Motor Drive Board | Automotive Infotainment Power Rail |
Use Scenario: Suppressing commutation spikes on brushed DC motor power traces in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Parallel-mounted TVS across motor terminals to clamp inductive kickback exceeding 40 V. Use Value: 2.5 W steady-state rating allows sustained operation near thermal limits during repeated motor starts/stops. | Use Scenario: Guarding 5 V and 3.3 V power domains feeding infotainment SoCs and display drivers against battery transients. IC Role / Device Role / Timing Role: Secondary-stage TVS after primary DC/DC converter, targeting fast ESD and coupled noise. Use Value: Ultra-fast response (<1 ns) and 10.5–11.6 V VBR enable precise clamping without false triggering on ripple or switching noise. |
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 | DO-214AC (SMA) package; 11.1 V VBR min, 19.9 V VC, 17.3 A IPPM, 1.5 W PD | Larger footprint (4.5 mm × 2.7 mm), 2.3 mm height; lower power rating limits use in high-duty-cycle surge environments | Select when legacy SMA layout exists and 1.5 W dissipation suffices; not suitable for new AEC-Q101–mandated designs. |
| TPSMA6.8A | Same DO-220AA package; lower VBR (6.45–7.14 V), 10.5 V VC, 26.5 A IPPM, 300 W PPPM | Designed for 5 V rail protection; clamping voltage too low for 12 V systems, risking premature conduction | Use only for sub-9 V applications; incompatible with 12 V nominal circuits due to insufficient standoff margin. |
Compared with SMAJ11A and TPSMA6.8A, the TPSMP11AHM3/85A delivers higher surge robustness (19.2 A vs. 17.3 A), superior thermal capability (185 °C vs. 150 °C), and automotive qualification-making it the preferred choice for new 12 V system designs requiring long-lifetime reliability under thermal stress.
Availability
TPSMP11AHM3/85A is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and consumer appliance motor control systems requiring stable component supply, AEC-Q101 compliance, and high-temperature operational integrity.
Supply support for TPSMP11AHM3/85A 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and automotive-grade validation.
The TPSMP series belongs to Vishay's eSMP® family of high-power-density TVS diodes, engineered specifically for space-constrained, high-temperature automotive and industrial surge protection where low profile, AEC-Q101 compliance, and repeatable clamping performance are mandatory.
FAQ
What is the breakdown voltage range of the TPSMP11AHM3/85A?
The TPSMP11AHM3/85A has a specified breakdown voltage (VBR) range of 10.5 V to 11.6 V at 1 mA test current, measured per ANSI/IEEE C62.35. This ±5 % tolerance ensures predictable turn-on behavior across temperature and production lots, making it suitable for precise 12 V rail protection where margin above VWM (9.40 V) must be maintained without false triggering.
Is the TPSMP11AHM3/85A suitable for automotive applications?
Yes, the TPSMP11AHM3/85A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, meeting stringent automotive reliability requirements for under-hood and body electronics. Its DO-220AA package is halogen-free, RoHS-compliant, and passes JESD201 Class 2 whisker testing-key criteria for modern automotive ECUs and sensor modules.
What is the clamping voltage of the TPSMP11AHM3/85A at its rated peak pulse current?
The TPSMP11AHM3/85A exhibits a maximum clamping voltage (VC) of 15.6 V at its rated peak pulse current (IPPM) of 19.2 A under the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on the protected circuit during surge events and is critical for ensuring downstream ICs remain within their absolute maximum ratings.
Does the TPSMP11AHM3/85A have a bidirectional configuration?
No, the TPSMP11AHM3/85A is a unidirectional TVS diode, meaning it conducts only during reverse-biased overvoltage conditions and blocks forward current like a standard rectifier. Its polarity is marked by a cathode band, and it is intended for DC-biased lines-not AC or bipolar signal paths-where asymmetric protection is required.
What packaging option does the TPSMP11AHM3/85A use, and what are its reflow characteristics?
The TPSMP11AHM3/85A is supplied in 13-inch plastic tape and reel (package code 85A), with 10,000 units per reel. It is rated MSL Level 1 per J-STD-020, supporting peak reflow temperatures up to 260 °C without moisture sensitivity concerns-enabling direct placement into standard lead-free SMT processes without baking or special handling.
TPSMP11AHM3/85A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- 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):
- 19.2A
- Power - Peak Pulse:
- 300W
- 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)
TPSMP11AHM3/85A FAQ
1.How can I place an order for TPSMP11AHM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP11AHM3/85A 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 TPSMP11AHM3/85A reliable?
The price and inventory of TPSMP11AHM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP11AHM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP11AHM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP11AHM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP11AHM3/85A?
TPSMP11AHM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP11AHM3/85A 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 TPSMP11AHM3/85A?
For technical support, including TPSMP11AHM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP11AHM3/85A requirements.
6.How does Aetrix verify that TPSMP11AHM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP11AHM3/85A 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 TPSMP11AHM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP11AHM3/85A?
All TPSMP11AHM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP11AHM3/85A, 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 TPSMP11AHM3/85A part is unused and in its original packaging.
Return procedure for TPSMP11AHM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP11AHM3/85A Tags
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