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Vishay General Semiconductor - Diodes Division TPSMP6.8HE3/85A
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- Part No.:
- TPSMP6.8HE3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP6.8HE3/85A.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,781
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Product details
Overview
TPSMP6.8HE3/85A from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) in DO-220AA (SMP) package, with 6.12 V to 7.48 V breakdown voltage (VBR), 250 W peak pulse power (10/1000 µs), and 23.2 V clamping voltage at 1000 A IPPM. It protects signal lines and ICs in automotive sensor units and electronic control modules.
For engineers reviewing the TPSMP6.8HE3/85A datasheet, TPSMP6.8HE3/85A pinout, TPSMP6.8HE3/85A application, or TPSMP6.8HE3/85A equivalent, key selection criteria include AEC-Q101 qualification, low-profile 1.0 mm height, 10.8 % VBR tolerance, 300 µs surge pulse capability, and RoHS-compliant matte tin terminals meeting JESD201 Class 2 whisker resistance.
Technical Context
This TVS diode uses patented PAR oxide-passivated chip construction for stable clamping under repetitive transients and low incremental surge resistance. Its unidirectional configuration enables precise reverse-biased protection of DC rails and signal paths where polarity is fixed.
Designed for surface-mount automated placement on FR-4 PCBs, it achieves 250 W peak pulse power with 5.0 × 5.0 mm copper pads per terminal and meets MSL Level 1 reflow (260 °C peak). Junction temperature range spans −65 °C to +185 °C, supporting under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.12 V / 7.48 V - Ensures reliable triggering above 5.5 V stand-off while avoiding false trips near nominal rail voltages. |
| PPPM | 250 W (10/1000 µs) - Withstands ISO 7637-2 Pulse 1/2a/3a surges in 12 V automotive systems without degradation. |
| VC @ IPPM | 23.2 V at 1000 A - Limits downstream voltage stress to safe levels for 24 V tolerant logic and interface ICs. |
| IR @ VWM | 300 µA at 5.5 V - Minimizes standby leakage in battery-sensitive applications like always-on sensor nodes. |
| TJ max | +185 °C - Enables operation adjacent to powertrain ECUs and other high-temperature zones without thermal derating. |
| Package | DO-220AA (SMP) - 1.0 mm profile allows placement beneath connectors and in tight engine-control module layouts. |
| AEC-Q101 | Qualified - Validated for automotive use including temperature cycling, mechanical shock, and humidity testing per AEC standard. |
Pinout & Package
DO-220AA (SMP) package: cathode-indicating color band at one end; two-terminal SMD device with matte tin-plated leads solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection to protected circuit ground or return path | Completes conduction path during transient clamp; must connect to low-impedance ground plane to minimize VPEAK. |
| Cathode | High-side connection to protected line (e.g., CAN_H, LIN, sensor supply) | Color band identifies this terminal; connects to vulnerable node requiring overvoltage limiting relative to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR oxide passivation | Stabilizes VBR over lifetime and prevents parametric drift under repeated 10/1000 µs surges. |
| MSL Level 1 rating | Enables single-reflow assembly at 260 °C peak without popcorn cracking or delamination. |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth in long-life automotive modules operating >15 years at elevated temperature. |
| UL 94 V-0 molding compound | Suppresses flame propagation in ECU enclosures during fault-induced thermal runaway events. |
| 0.024 g unit weight | Reduces inertial stress on solder joints during mechanical shock (e.g., ABS actuation vibration). |
Applications
| Automotive Sensor Protection | CAN Bus Line Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control units exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor VSUPPLY and GND to clamp positive-going transients before they reach ASIC input stages. Use Value: Maintains sensor accuracy by limiting voltage excursions to ≤23.2 V, preventing latch-up or damage to 5 V or 3.3 V front-end amplifiers. |
Use Scenario: Safeguarding CAN_H and CAN_L differential pair against ESD and coupled transients in body control modules and ADAS domain controllers. IC Role / Device Role / Timing Role: One TPSMP6.8HE3/85A per line (CAN_H–GND and CAN_L–GND), leveraging low capacitance (<100 pF) to avoid signal integrity degradation at 1 Mbps. Use Value: Preserves CAN bit timing margins by clamping <10 ns after transient onset, with no added jitter or rise-time distortion. |
| Infotainment Power Rail Protection | Start-Stop System Microcontroller I/O Protection |
|
Use Scenario: Shielding 5 V and 3.3 V power rails feeding audio codecs, display drivers, and USB PHYs from battery line disturbances during cold-crank and alternator ripple. IC Role / Device Role / Timing Role: Parallel-connected TVS on each regulated rail, sized for 250 W peak dissipation to absorb 100 ms load-dump energy without failure. Use Value: Prevents brownout resets and memory corruption by holding rail voltage within ±10 % of nominal during 12 V system surges up to 28 V. |
Use Scenario: Guarding GPIO, reset, and communication pins of microcontrollers managing start-stop sequencing in 48 V mild-hybrid architectures. IC Role / Device Role / Timing Role: Point-of-load TVS on each sensitive pin, exploiting 1.0 mm height to fit beneath QFN-packaged MCUs in space-constrained junction boxes. Use Value: Ensures deterministic MCU behavior by limiting transient-induced glitches to <100 ns duration, avoiding spurious wake-ups or firmware hangs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A-E3/5AT | DO-214AC (SMA) package; 600 W PPPM; higher VC = 11.5 V at 38.9 A; not AEC-Q101 qualified | Higher power handling but larger footprint (2.5 mm height); suited for industrial power supplies, not automotive under-hood use | Select SMAJ6.8A-E3/5AT only when board space permits larger package and AEC-Q101 is not required. |
| TPSMP6.8AHE3/85A | Narrower VBR range (6.45–7.14 V); tighter 10.5 % tolerance; identical DO-220AA package and AEC-Q101 status | Better precision for 5 V rail protection where tighter clamping threshold improves margin over 6.8 V nominal supplies | Choose TPSMP6.8AHE3/85A when VBR consistency across production lots is critical for fail-safe design validation. |
Compared with SMAJ6.8A-E3/5AT, TPSMP6.8HE3/85A offers automotive qualification and lower profile but lower peak power; versus TPSMP6.8AHE3/85A, it trades tighter VBR tolerance for broader voltage coverage-ideal for cost-sensitive designs where 10.8 % spread is acceptable.
Availability
TPSMP6.8HE3/85A is available at Aetrix Electronics and suitable for automotive sensor units, CAN bus interfaces, and infotainment power rail protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPSMP6.8HE3/85A 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 optoelectronics for automotive, industrial, and computing markets.
The TPSMP6.8HE3/85A belongs to Vishay's eSMP™ series of high-power-density TVS diodes, engineered specifically for AEC-Q101-compliant transient suppression in space-constrained automotive ECUs and sensor modules.
FAQ
What is the clamping voltage of the TPSMP6.8HE3/85A at its rated peak pulse current?
The TPSMP6.8HE3/85A has a maximum clamping voltage (VC) of 23.2 V at 1000 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value ensures downstream components see limited overvoltage stress during standardized automotive transients such as ISO 7637-2 Pulse 1. The TPSMP6.8HE3/85A maintains this clamping performance across its full operating temperature range.
Is the TPSMP6.8HE3/85A qualified for automotive applications?
Yes, the TPSMP6.8HE3/85A is AEC-Q101 qualified and designated as high-reliability/automotive grade (HE3 suffix). It undergoes rigorous stress testing-including temperature cycling, mechanical shock, and humidity exposure-to meet automotive electronics requirements. The TPSMP6.8HE3/85A is intended for use in engine control units, sensor modules, and body electronics where reliability under harsh environmental conditions is mandatory.
What does the '85A' in TPSMP6.8HE3/85A indicate?
The '85A' denotes the preferred package code specifying 13-inch diameter plastic tape and reel packaging with a base quantity of 10,000 units per reel. This format supports high-volume automated SMT assembly. The TPSMP6.8HE3/85A is distinct from the 7-inch reel variant (84A), and both share identical electrical and mechanical specifications-only the packaging differs.
How does the DO-220AA (SMP) package of the TPSMP6.8HE3/85A compare to traditional SMA packages in height?
The DO-220AA (SMP) package of the TPSMP6.8HE3/85A has a typical height of 1.0 mm, significantly lower than the 2.5 mm height of standard DO-214AC (SMA) packages. This reduced profile allows the TPSMP6.8HE3/85A to be placed beneath connectors or in stacked PCB assemblies common in modern automotive ECUs. The compact form factor does not compromise surge capability, as the TPSMP6.8HE3/85A delivers 250 W peak pulse power despite its low stature.
Does the TPSMP6.8HE3/85A have bidirectional or unidirectional polarity?
The TPSMP6.8HE3/85A is a unidirectional TVS diode, meaning it conducts only during reverse-biased overvoltage events. Polarity is indicated by a cathode band on the package; correct orientation is essential for proper protection of DC rails and signal lines. Unlike bidirectional devices, the TPSMP6.8HE3/85A provides optimized clamping for single-polarity transients-common in automotive 12 V systems-and exhibits lower leakage at stand-off voltage than equivalent bidirectional parts.
TPSMP6.8HE3/85A 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)
TPSMP6.8HE3/85A FAQ
1.How can I place an order for TPSMP6.8HE3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP6.8HE3/85A 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 TPSMP6.8HE3/85A reliable?
The price and inventory of TPSMP6.8HE3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP6.8HE3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP6.8HE3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP6.8HE3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP6.8HE3/85A?
TPSMP6.8HE3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP6.8HE3/85A 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 TPSMP6.8HE3/85A?
For technical support, including TPSMP6.8HE3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP6.8HE3/85A requirements.
6.How does Aetrix verify that TPSMP6.8HE3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP6.8HE3/85A 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 TPSMP6.8HE3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP6.8HE3/85A?
All TPSMP6.8HE3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP6.8HE3/85A, 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 TPSMP6.8HE3/85A part is unused and in its original packaging.
Return procedure for TPSMP6.8HE3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP6.8HE3/85A Tags
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