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Vishay General Semiconductor - Diodes Division TPSMP6.8HM3/85A
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- Part No.:
- TPSMP6.8HM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP6.8HM3/85A.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,518
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Product details
Overview
TPSMP6.8HM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability overvoltage protection of low-voltage signal lines and power rails. It features 6.12 V to 7.48 V breakdown voltage (VBR), 5.5 V stand-off voltage (VWM), 23.2 V clamping voltage at 10 A peak pulse current, 250 W peak pulse power rating (10/1000 µs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the TPSMP6.8HM3/85A datasheet, TPSMP6.8HM3/85A pinout, TPSMP6.8HM3/85A application, or TPSMP6.8HM3/85A equivalent, key selection criteria include unidirectional polarity, 185 °C junction temperature capability, MSL Level 1 moisture sensitivity, 1.0 mm profile for space-constrained PCB layouts, and compatibility with automated SMT placement on consumer, industrial, and automotive electronics.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD, lightning-induced surges, and switching transients. Its unidirectional configuration provides forward conduction path while clamping reverse transients above VWM, making it suitable for DC-biased signal and power line protection.
The device operates across -65 °C to +185 °C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 reflow requirements. Its DO-220AA package delivers high power density with 2.5 W steady-state dissipation on infinite heatsink and 40 A IFSM surge rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.12 V / 7.48 V - defines minimum and maximum voltage at which device enters avalanche breakdown under 10 mA test current |
| VWM | 5.5 V - maximum continuous reverse operating voltage before leakage exceeds 300 μA |
| VC @ IPPM | 23.2 V at 10 A - clamping voltage during 10/1000 µs surge, limiting downstream voltage stress |
| PPPM | 250 W - peak pulse power handling capability, critical for transient energy absorption |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| IFSM | 40 A - withstands 10 ms half-sine surge without failure, supporting robust input stage protection |
| Package | DO-220AA (SMP) - ultra-low-profile surface-mount package (1.0 mm height) compatible with automated pick-and-place |
Pinout & Package
DO-220AA (SMP) package: single-axis, two-terminal surface-mount device with cathode indicated by color band; terminals are matte tin-plated for solderability per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-impedance path during normal operation | Connects to lower-potential side of protected line; conducts during forward bias or fault conditions |
| Cathode | Reverse-biased terminal / clamping node during transients | Marked with color band; connects to higher-potential side; initiates avalanche conduction when VREV > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable, repeatable breakdown behavior and low leakage (<300 μA at VWM) over lifetime and temperature |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow without preconditioning, reducing manufacturing complexity |
| 1.0 mm typical height | Minimizes board real estate and improves airflow in stacked or enclosed assemblies |
| Junction temperature rating up to +185 °C | Permits placement near heat sources (e.g., power MOSFETs, DC-DC converters) without derating |
Applications
| Automotive Sensor Interface Protection | USB Power Line Surge Suppression |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., temperature, pressure) in engine bay or chassis modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients while preserving DC bias integrity. Use Value: Clamps 23.2 V at 10 A ensures microcontroller I/O pins remain below absolute maximum ratings during 100 V/500 ms load dump events. | Use Scenario: Safeguarding 5 V USB VBUS lines against ESD (IEC 61000-4-2 ±15 kV contact) and hot-plug inrush-induced overshoot. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between VBUS and GND to absorb fast transients without affecting steady-state regulation. Use Value: 5.5 V VWM allows full 5 V ±5% USB specification margin while maintaining <300 μA leakage at room temperature. |
| Industrial PLC Digital Input Protection | Consumer Appliance Motor Driver Gate Protection |
Use Scenario: Shielding 24 V DC digital input circuits in programmable logic controllers from field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed across optocoupler input or Schmitt trigger to limit transient voltage to safe levels. Use Value: 250 W peak pulse power rating handles repetitive 1 kV/500 Ω surge waveforms per IEC 61000-4-5 without degradation. | Use Scenario: Protecting gate drive signals of N-channel MOSFETs in BLDC motor inverters from Miller-induced voltage spikes during high dV/dt switching. IC Role / Device Role / Timing Role: Low-capacitance TVS placed between gate and source to suppress sub-10 ns transients without distorting PWM edges. Use Value: Fast response time and 23.2 V clamping prevent gate oxide breakdown in 600 V MOSFETs subjected to 400 V bus transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A-E3/5A | DO-214AC (SMA) package; 6.45–7.14 V VBR; 200 W PPPM; 1.9 mm height | Lower power rating and taller profile limits use in ultra-thin automotive modules | Select when cost sensitivity outweighs space constraints and 200 W surge capacity suffices |
| 1.5SMC6.8A | DO-214AB (SMC) package; 6.45–7.14 V VBR; 1500 W PPPM; 2.6 mm height | Higher power but significantly larger footprint and height; not MSL Level 1 rated | Choose only for non-automotive, high-energy surge environments where board space permits |
Compared with SMAJ6.8A-E3/5A and 1.5SMC6.8A, TPSMP6.8HM3/85A delivers superior power density (250 W in 1.0 mm height), AEC-Q101 compliance, and MSL Level 1 process compatibility-making it optimal for space-limited, high-reliability automotive and industrial designs where consistent surge immunity and manufacturability are critical.
Availability
TPSMP6.8HM3/85A is available at Aetrix Electronics and suitable for automotive sensor protection, USB power line hardening, industrial PLC input conditioning, and motor driver gate safeguarding requiring stable component supply and long-term lifecycle support.
Supply support for TPSMP6.8HM3/85A 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, TVS devices, and power MOSFETs with emphasis on reliability, efficiency, and application-specific performance.
The TPSMP series belongs to Vishay's eSMP® family of high-power-density TVS diodes engineered for automotive-grade transient suppression in compact, surface-mount form factors with extended thermal capability.
FAQ
What is the breakdown voltage tolerance of TPSMP6.8HM3/85A?
The TPSMP6.8HM3/85A has a specified breakdown voltage (VBR) range of 6.12 V to 7.48 V at 10 mA test current, corresponding to ±10 % tolerance around the nominal 6.8 V rating. This tolerance is confirmed in the Electrical Characteristics table of Vishay document 88471 and applies strictly to the TPSMP6.8 variant within the family.
Is TPSMP6.8HM3/85A suitable for bidirectional transient protection?
No, TPSMP6.8HM3/85A is explicitly unidirectional, as stated in the Features section and confirmed by its single cathode band marking and electrical characteristics (no reverse standoff symmetry). For bidirectional protection, Vishay offers separate TPSMP6.8CA variants; using TPSMP6.8HM3/85A in reverse-biased AC applications risks permanent failure.
Does TPSMP6.8HM3/85A require derating at elevated ambient temperatures?
Yes, TPSMP6.8HM3/85A must be derated per Figure 2 in Vishay document 88471: peak pulse power decreases linearly above 25 °C ambient, reaching ~50 % of rated 250 W at 125 °C. Steady-state power dissipation also follows Figure 6, dropping to zero at 175 °C junction temperature.
What does the "HM3/85A" suffix indicate in TPSMP6.8HM3/85A?
The "HM3" denotes halogen-free, RoHS-compliant, AEC-Q101-qualified construction with JESD201 Class 2 whisker resistance; "85A" specifies 13-inch tape-and-reel packaging with 10,000 units per reel, per Vishay's Ordering Information table in document 88471.
Can TPSMP6.8HM3/85A be used in place of SMAJ6.8A in existing designs?
Direct substitution is not recommended without layout review: TPSMP6.8HM3/85A uses DO-220AA (SMP) footprint (0.033" x 0.053"), while SMAJ6.8A uses DO-214AC (SMA) (0.155" x 0.105"). Though both are unidirectional 6.8 V TVS diodes, the package mismatch requires PCB redesign; electrical parameters alone do not guarantee drop-in replacement.
TPSMP6.8HM3/85A 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):
- 5.5V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V
- Current - Peak Pulse (10/1000µs):
- 23.2A
- Power - Peak Pulse:
- 250W
- 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)
TPSMP6.8HM3/85A FAQ
1.How can I place an order for TPSMP6.8HM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP6.8HM3/85A 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 TPSMP6.8HM3/85A reliable?
The price and inventory of TPSMP6.8HM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP6.8HM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP6.8HM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP6.8HM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP6.8HM3/85A?
TPSMP6.8HM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP6.8HM3/85A 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 TPSMP6.8HM3/85A?
For technical support, including TPSMP6.8HM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP6.8HM3/85A requirements.
6.How does Aetrix verify that TPSMP6.8HM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP6.8HM3/85A 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 TPSMP6.8HM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP6.8HM3/85A?
All TPSMP6.8HM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP6.8HM3/85A, 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 TPSMP6.8HM3/85A part is unused and in its original packaging.
Return procedure for TPSMP6.8HM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP6.8HM3/85A Tags
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