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Vishay General Semiconductor - Diodes Division TPSMP11HE3/85A
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- Part No.:
- TPSMP11HE3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP11HE3/85A.pdf
- Description:
- TVS DIODE 8.92VWM 16.2VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,107
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Product details
Overview
TPSMP11HE3/85A from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) in DO-220AA (SMP) package, with 9.9 V to 12.1 V breakdown voltage (VBR), 18.5 A peak pulse current (IPPM), and 16.2 V clamping voltage (VC) at IPPM, designed for robust ESD and surge protection of sensor signal lines in automotive ECUs.
For engineers reviewing the TPSMP11HE3/85A datasheet, TPSMP11HE3/85A pinout, TPSMP11HE3/85A application, or TPSMP11HE3/85A equivalent, key selection criteria include AEC-Q101 qualification, 1.0 mm profile, 185 °C max junction temperature, and DO-220AA mechanical compatibility with automated SMT placement.
Technical Context
This TVS diode uses patented PAR oxide-passivated chip construction to achieve low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ISO 7637-2 and ISO 16750-2 transients in automotive power and signal domains. Its unidirectional configuration supports DC-biased lines such as LIN bus or sensor supply rails.
The device operates across -65 °C to +185 °C, with 2.5 W steady-state power dissipation on infinite heatsink and 10 µA max reverse leakage at 8.92 V stand-off voltage - optimized for low-power sensor interfaces where leakage-induced offset must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 9.9 V / 12.1 V - defines minimum trigger threshold and maximum variation tolerance under 1 mA test current |
| VC @ IPPM | 16.2 V - clamping voltage during 18.5 A 10/1000 µs surge, limiting downstream IC stress |
| IPPM | 18.5 A - peak surge current capability with 10/1000 µs waveform, derated above 25 °C ambient |
| VWM | 8.92 V - maximum continuous reverse working voltage before leakage exceeds 2 µA |
| TJ max | +185 °C - enables operation in engine bay or transmission control modules without thermal derating |
| Package | DO-220AA (SMP) - 1.0 mm height, 2.67 mm × 1.88 mm footprint, MSL Level 1, JESD201 Class 2 whisker compliant |
Pinout & Package
DO-220AA (SMP) surface-mount package with cathode indicated by color band; two-terminal unidirectional configuration. Mounting requires 5.0 × 5.0 mm copper pads per terminal per JEDEC standard for thermal and surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC return path for protected line | Connected to ground or lower-potential rail; carries full surge current during clamping |
| Cathode | Protected line input | Connected to signal/power line being safeguarded; polarity marked by band; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 qualified - validated for automotive electronics including powertrain, chassis, and body control modules |
| Low-profile packaging | 1.0 mm typical height - enables use in space-constrained modules like radar sensors and ADAS camera ECUs |
| Patented chip construction | PAR oxide passivation - improves surge reliability and reduces parameter drift over lifetime vs. standard silicon junctions |
| Fast transient response | <1 ns response time - ensures clamping activation before sensitive CMOS inputs experience overstress |
| High-temperature operation | Rated to +185 °C junction - supports direct mounting near heat sources without external thermal management |
Applications
| Automotive Sensor Protection | LIN Bus Interface Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control units exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp surges while maintaining signal integrity. Use Value: Limits voltage excursion to ≤16.2 V during 18.5 A transients, preventing ADC saturation and latch-up in 3.3 V or 5 V microcontrollers. |
Use Scenario: Safeguarding LIN transceiver pins against ESD events and battery reversal-induced reverse bias in door module networks. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between LIN bus line and ground, operating below 8.92 V nominal voltage with <2 µA leakage. Use Value: Maintains LIN bus signal fidelity with minimal capacitive loading (typ. <100 pF) and prevents false wake-up from leakage-induced voltage shift. |
| Body Control Module Power Input | Camera Module Signal Line Protection |
Use Scenario: Secondary surge protection on 12 V supply rail of BCMs after primary fuse and LC filter, handling residual ISO 7637-2 Pulse 5a/b energy. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing remaining surge energy not filtered upstream, thermally coupled to PCB copper pour. Use Value: Withstands 40 A non-repetitive forward surge (IFSM) and delivers 2.5 W steady-state dissipation at 75 °C ambient without derating. |
Use Scenario: Protecting MIPI CSI-2 differential pairs and I²C configuration lines in surround-view camera modules subjected to cable discharge events. IC Role / Device Role / Timing Role: Discrete unidirectional TVS on each signal line, leveraging low 1.0 mm height to avoid interference with flex circuit bending radius. Use Value: Meets JESD22-B102 solderability and JESD201 Class 2 whisker requirements for high-reliability imaging systems in automotive applications. |
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-E3/5AT | DO-214AC (SMA) package; 11.1 V VBR min; 19.9 V VC; 1000 W PPPM rating but larger 2.5 mm height | Higher clamping voltage and less compact form factor - suitable where board height >1.0 mm is acceptable and higher surge margin is needed | Select SMAJ11A-E3/5AT when system-level testing shows TPSMP11HE3/85A clamping margin is insufficient for worst-case transients |
| TPSMP11AHE3/85A | Narrower VBR range (10.5 V–11.6 V); tighter 1.0 V tolerance; same DO-220AA package and thermal specs | Improved VBR consistency for designs requiring precise turn-on timing, e.g., in multi-stage protection schemes with upstream MOVs | Choose TPSMP11AHE3/85A when VBR distribution control is critical and design can accommodate tighter specification limits |
Compared with SMAJ11A-E3/5AT and TPSMP11AHE3/85A, the TPSMP11HE3/85A offers the lowest profile (1.0 mm) and broadest VBR range (9.9–12.1 V), making it optimal for height-sensitive automotive modules where moderate clamping precision suffices.
Availability
TPSMP11HE3/85A is available at Aetrix Electronics and suitable for automotive sensor protection, LIN bus interface hardening, and body control module power input applications requiring stable component supply and AEC-Q101 compliance.
Supply support for TPSMP11HE3/85A 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The TPSMP11HE3/85A belongs to Vishay's eSMP™ series of ultra-low-profile TVS diodes, engineered specifically for AEC-Q101-compliant automotive electronics where space, thermal resilience, and transient immunity are critical.
FAQ
What is the clamping voltage of the TPSMP11HE3/85A under maximum rated surge current?
The TPSMP11HE3/85A has a maximum clamping voltage (VC) of 16.2 V when subjected to its rated 18.5 A peak pulse current (IPPM) using a 10/1000 µs waveform. This value is measured at TA = 25 °C with specified PCB pad layout and represents the upper limit of voltage seen by protected circuitry during transient events.
Is the TPSMP11HE3/85A suitable for bidirectional signal line protection?
No, the TPSMP11HE3/85A is a unidirectional TVS diode and is not suitable for bidirectional signal lines such as USB or CAN. Its design assumes a DC-biased line with defined polarity; using it on AC-coupled or symmetrical lines would result in improper clamping behavior and potential failure. For bidirectional protection, consider Vishay's SMBJ11CA or similar devices.
Does the TPSMP11HE3/85A meet AEC-Q101 requirements for automotive use?
Yes, the TPSMP11HE3/85A is explicitly qualified to AEC-Q101 standards for automotive discrete semiconductors. The HE3 suffix denotes high-reliability, automotive-grade construction, and the device undergoes stress testing including temperature cycling, humidity bias, and surge endurance per the AEC-Q101-004 and AEC-Q101-007 specifications.
What is the maximum operating temperature for the TPSMP11HE3/85A junction?
The TPSMP11HE3/85A has a maximum junction temperature (TJ) rating of +185 °C, verified per AEC-Q101 thermal characterization protocols. This allows reliable operation in under-hood environments and near high-power components without additional thermal derating beyond the published pulse derating curve.
How does the DO-220AA package of the TPSMP11HE3/85A compare to SMA (DO-214AC) in terms of PCB footprint and thermal performance?
The DO-220AA package of the TPSMP11HE3/85A measures 2.67 mm × 1.88 mm with 1.0 mm height, versus SMA's 4.5 mm × 2.7 mm × 2.5 mm - offering ~55 % smaller footprint and 60 % lower profile. Thermal resistance to PCB is higher in DO-220AA due to reduced copper contact area, so the TPSMP11HE3/85A relies on optimized 5.0 × 5.0 mm pad layout per datasheet Figure 2 to achieve its rated 2.5 W dissipation.
TPSMP11HE3/85A 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):
- 8.92V
- Voltage - Breakdown (Min):
- 9.9V
- Voltage - Clamping (Max) @ Ipp:
- 16.2V
- Current - Peak Pulse (10/1000µs):
- 18.5A
- 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)
TPSMP11HE3/85A FAQ
1.How can I place an order for TPSMP11HE3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP11HE3/85A 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 TPSMP11HE3/85A reliable?
The price and inventory of TPSMP11HE3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP11HE3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP11HE3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP11HE3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP11HE3/85A?
TPSMP11HE3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP11HE3/85A 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 TPSMP11HE3/85A?
For technical support, including TPSMP11HE3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP11HE3/85A requirements.
6.How does Aetrix verify that TPSMP11HE3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP11HE3/85A 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 TPSMP11HE3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP11HE3/85A?
All TPSMP11HE3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP11HE3/85A, 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 TPSMP11HE3/85A part is unused and in its original packaging.
Return procedure for TPSMP11HE3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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