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Vishay General Semiconductor - Diodes Division TPSMP15HM3/85A
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- Part No.:
- TPSMP15HM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP15HM3/85A.pdf
- Description:
- TVS DIODE 12.1VWM 22VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,186
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Product details
Overview
TPSMP15HM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability overvoltage protection of sensitive electronics. It features a 13.5 V to 16.3 V breakdown voltage (VBR), 22.0 V clamping voltage (VC) at 18.2 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) capability - optimized for automotive sensor line and microcontroller I/O protection.
For engineers reviewing the TPSMP15HM3/85A datasheet, TPSMP15HM3/85A pinout, TPSMP15HM3/85A application, or TPSMP15HM3/85A equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction temperature rating, low-profile 1.0 mm height, MSL Level 1 moisture sensitivity, and uni-directional polarity with cathode band marking.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD and lightning-induced transients per IEC 61000-4-2 and ISO 16750-2. Its unidirectional configuration supports DC-biased signal lines where reverse conduction must be blocked.
The device operates across -65 °C to +185 °C, with thermal derating above 25 °C ambient per Fig. 2, and is rated for 40 A non-repetitive forward surge current (IFSM) under 10 ms half-sine conditions - supporting robustness in automotive power cycling and load dump scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 13.5 V / 16.3 V - ensures reliable triggering above system operating voltage while avoiding false clamping during normal operation |
| VWM | 12.1 V - maximum continuous reverse stand-off voltage compatible with 12 V automotive systems |
| VC @ IPPM | 22.0 V at 18.2 A - limits transient voltage seen by protected ICs to safe levels during 10/1000 μs surges |
| PPPM | 400 W - enables handling of high-energy transients common in industrial and automotive environments |
| TJ max. | +185 °C - supports under-hood placement and long-term reliability in high-temperature automotive applications |
| Package | DO-220AA (SMP) - ultra-low profile (1.0 mm typical height), AEC-Q101 qualified, halogen-free, RoHS-compliant |
| Polarity | Uni-directional - blocks reverse current flow; cathode band denotes terminal for correct PCB orientation |
Pinout & Package
TPSMP15HM3/85A is a two-terminal surface-mount device in DO-220AA (SMP) package. The cathode is marked by a color band on one end; the opposite end is the anode. No internal circuitry or additional terminals exist.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive input terminal for forward bias | Connected to system ground or lower-potential node in uni-directional clamp configuration |
| Cathode | Protected line connection point | Connected to signal/power line requiring transient suppression; color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock testing |
| 185 °C junction rating | Enables operation in engine control units, transmission modules, and other high-temperature under-hood locations |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning, reducing manufacturing complexity |
| Low 1.0 mm profile | Minimizes board space and improves airflow in dense automotive ECUs and ADAS modules |
| Passivated anisotropic rectifier tech | Delivers consistent clamping performance and low leakage (<1 μA at VWM) across temperature and lifetime |
Applications
| Automotive Sensor Protection | Microcontroller I/O Clamping |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., oxygen, pressure, temperature sensors) from load dump and ESD events in vehicle body control modules. IC Role / Device Role / Timing Role: Uni-directional TVS placed between sensor output and MCU input, clamping transients before they reach the ADC or digital input pin. Use Value: Maintains signal integrity during ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-2 ±15 kV contact discharge without latch-up or degradation. | Use Scenario: Safeguarding GPIO, UART, SPI, and reset lines of automotive-grade MCUs (e.g., Renesas RH850, NXP S32K) against coupling-induced surges in infotainment and gateway ECUs. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor mounted directly at connector or IC pad to minimize inductance and maximize clamping speed. Use Value: Limits clamped voltage to ≤22.0 V during 10/1000 μs transients, preventing damage to 3.3 V or 5 V logic inputs while maintaining <1 μA leakage at 12.1 V. |
| Industrial Motor Drive Control | Power Supply Input Stage |
Use Scenario: Shielding gate drivers and current sense amplifiers in BLDC motor inverters from switching noise and inductive kickback in HVAC and pump controllers. IC Role / Device Role / Timing Role: Fast-response TVS placed across isolated feedback paths or low-side shunt amplifier inputs to absorb sub-microsecond spikes. Use Value: With 18.2 A IPPM and 22.0 V VC, it prevents false triggering and offset drift in precision current sensing circuits during PWM edge transitions. | Use Scenario: Secondary-side transient suppression on 12 V or 24 V DC input rails feeding power management ICs in telecom and industrial power supplies. IC Role / Device Role / Timing Role: Standoff-rated protector upstream of LDOs or buck controllers, absorbing residual surges that bypass primary-stage MOVs. Use Value: 400 W PPPM and 185 °C TJ rating ensure sustained protection during repeated surge events without thermal runaway or parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/5AT | DO-214AC (SMA) package; 15 V nominal VBR; 24.4 V VC at 16.3 A; 400 W PPPM; same AEC-Q101 qualification | Larger footprint (2.59 mm height) and higher thermal resistance; less suitable for ultra-dense layouts | Select when legacy SMA footprint compatibility is required and board height budget allows ≥2.5 mm |
| TPSMP15A-HM3/85A | Same DO-220AA package; tighter VBR tolerance (±5 %: 14.3–15.8 V); identical VC, PPPM, and thermal specs | Improved voltage consistency for designs requiring precise clamping threshold control | Choose for new designs needing tighter breakdown tolerance without layout change |
Compared with SMAJ15A-E3/5AT, TPSMP15HM3/85A offers 1.0 mm height and superior board-level density; compared with TPSMP15A-HM3/85A, it trades tighter VBR tolerance for broader initial voltage spread - both share identical clamping behavior, thermal capability, and automotive qualification.
Availability
TPSMP15HM3/85A is available at Aetrix Electronics and suitable for automotive sensor interfaces, microcontroller I/O protection, and industrial power supply input stages requiring stable component supply, AEC-Q101 compliance, and high-temperature operational assurance.
Supply support for TPSMP15HM3/85A 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, rectifiers, MOSFETs, and protection devices with emphasis on automotive, industrial, and computing applications.
The TPSMP series belongs to Vishay's eSMP® family of high-power-density TVS diodes, engineered specifically for space-constrained, high-reliability transient suppression in automotive and harsh-environment electronics.
FAQ
What is the breakdown voltage range of the TPSMP15HM3/85A?
The TPSMP15HM3/85A has a specified breakdown voltage (VBR) range of 13.5 V to 16.3 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures reliable turn-on above typical 12 V system operating voltages while avoiding premature conduction during normal operation - a critical requirement for protecting automotive microcontrollers and sensor interfaces.
Is the TPSMP15HM3/85A suitable for automotive applications?
Yes, the TPSMP15HM3/85A is AEC-Q101 qualified and rated for operation from -65 °C to +185 °C junction temperature. Its DO-220AA package meets MSL Level 1, and its 400 W peak pulse power rating supports ISO 7637-2 and ISO 16750-2 compliance testing - making TPSMP15HM3/85A appropriate for engine control units, body electronics, and ADAS modules.
What is the clamping voltage of the TPSMP15HM3/85A under surge conditions?
The TPSMP15HM3/85A exhibits a maximum clamping voltage (VC) of 22.0 V at 18.2 A peak pulse current (IPPM) using a 10/1000 μs waveform. This value is guaranteed across temperature and ensures protected downstream components - such as 3.3 V or 5 V logic inputs - remain within safe voltage limits during transient events.
Does the TPSMP15HM3/85A have polarity markings?
Yes, the TPSMP15HM3/85A uses a cathode band marking on the DO-220AA package to identify the cathode terminal. This band must align with the PCB silkscreen indicator during placement. As a unidirectional TVS, correct polarity is essential: cathode connects to the line being protected, anode to ground - reversal would prevent proper clamping function.
What packaging option does TPSMP15HM3/85A use?
The TPSMP15HM3/85A is supplied in 13-inch diameter plastic tape and reel format, with a base quantity of 10,000 units per reel (package code "85A"). This packaging supports automated SMT assembly and complies with J-STD-002 and JESD 22-B102 solderability standards, ensuring reliable placement and reflow yield in high-volume production.
TPSMP15HM3/85A 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):
- 12.1V
- Voltage - Breakdown (Min):
- 13.5V
- Voltage - Clamping (Max) @ Ipp:
- 22V
- Current - Peak Pulse (10/1000µs):
- 18.2A
- 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)
TPSMP15HM3/85A FAQ
1.How can I place an order for TPSMP15HM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP15HM3/85A 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 TPSMP15HM3/85A reliable?
The price and inventory of TPSMP15HM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP15HM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP15HM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP15HM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP15HM3/85A?
TPSMP15HM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP15HM3/85A 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 TPSMP15HM3/85A?
For technical support, including TPSMP15HM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP15HM3/85A requirements.
6.How does Aetrix verify that TPSMP15HM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP15HM3/85A 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 TPSMP15HM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP15HM3/85A?
All TPSMP15HM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP15HM3/85A, 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 TPSMP15HM3/85A part is unused and in its original packaging.
Return procedure for TPSMP15HM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP15HM3/85A Tags
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