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Vishay General Semiconductor - Diodes Division TPSMC6.8AHM3_B/H
- Part No.:
- TPSMC6.8AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC6.8AHM3_B/H.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,974
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Product details
Overview
TPSMC6.8AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features 6.8 V breakdown voltage (VBR), 5.8 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 μs), 10.5 V clamping voltage at 143 A, and operates up to +185 °C junction temperature - used in automotive sensor protection and industrial power rail surge suppression.
For engineers reviewing the TPSMC6.8AHM3_B/H datasheet, TPSMC6.8AHM3_B/H pinout, TPSMC6.8AHM3_B/H application, or TPSMC6.8AHM3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, MSL Level 1 rating, 10/1000 μs waveform clamping performance, and halogen-free RoHS-compliant construction per ordering suffix HM3.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge stress. Its 185 °C maximum junction temperature and JESD201 Class 2 whisker resistance support high-reliability automotive deployment where thermal cycling and long-term solder joint integrity are critical.
The device exhibits low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD and inductive switching transients before downstream ICs or MOSFETs experience overvoltage damage. Clamping behavior is characterized per ANSI/IEEE C62.35 with defined 10/1000 μs waveform compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 6.45 / 6.80 / 7.14 V - defines precise voltage threshold at which avalanche conduction begins under 10 mA test current |
| VWM | 5.80 V - maximum continuous reverse working voltage before leakage exceeds 1000 μA at 25 °C |
| VC @ IPPM | 10.5 V at 143 A - clamped voltage during 1500 W transient, limiting stress on protected circuitry |
| PPPM | 1500 W - peak pulse power handling capability with standard 10/1000 μs waveform |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band denotes terminal orientation |
| MSL Level | Level 1 (J-STD-020) - supports standard reflow without moisture sensitivity concerns |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound. Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or transient clamping | Connected to protected line's lower-potential side (e.g., ground or return path) |
| Cathode | Current exit point during clamping; marked with band | Connected to protected line's higher-potential side (e.g., VCC, signal, or power rail) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Halogen-free & RoHS-compliant | HM3 suffix confirms full compliance with environmental regulations and material restrictions for global OEM supply chains |
| 1500 W peak pulse power | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surge events without derating at 25 °C |
| Low clamping ratio (VC/VBR ≈ 1.54) | Minimizes overvoltage margin between clamping and breakdown, improving system-level surge immunity headroom |
| 185 °C junction rating | Enables placement near heat sources (e.g., power converters) without thermal derating penalties in industrial designs |
Applications
| Automotive Sensor Protection | Industrial Power Rail Clamp |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and inductive kickback in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between signal line and ground, responding within nanoseconds to transients exceeding VWM. Use Value: Prevents latch-up or permanent damage to 5 V or 3.3 V interface ICs while maintaining signal integrity due to low capacitance (<100 pF at zero bias). | Use Scenario: Safeguarding 12 V/24 V DC input rails in PLC modules and motor drives against switching surges from relay coils or solenoids. IC Role / Device Role / Timing Role: Primary overvoltage clamp across input terminals, conducting surge current away from upstream regulators and downstream controllers. Use Value: Absorbs 1500 W pulses without failure, enabling use in Class II industrial equipment with no external heat sinking required. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHY interfaces and PoE injectors from lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Secondary-level TVS on secondary-side DC lines, coordinated with primary-side MOVs and gas discharge tubes. Use Value: Provides fast-response clamping (sub-ns) to complement slower primary protectors, reducing let-through energy to <10 mJ. | Use Scenario: Input-stage transient suppression in wall adapters and USB-C PD chargers exposed to mains-borne noise and plug-in surges. IC Role / Device Role / Timing Role: Standoff-rated protector on secondary-side 5–20 V outputs, placed before USB port controllers and battery management ICs. Use Value: Maintains 5.8 V VWM compatibility with common 5 V logic domains while surviving repeated 1500 W surges per IEC 61000-4-5. |
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-Q | Lower PPPM (400 W), SMA package (smaller footprint), same VBR range but higher VC (11.5 V) | Not rated for AEC-Q101; limited to commercial/industrial ambient conditions (TJ ≤ 150 °C) | Select when space-constrained PCB layout prioritizes size over automotive qualification and surge margin. |
| 1.5SMC6.8A | Same SMC package and 1500 W rating, but non-halogen-free HE3 suffix and no AEC-Q101 validation | Approved for industrial use only; lacks whisker resistance and high-temp reliability data required for automotive Tier 1 sourcing | Choose for cost-sensitive industrial applications where halogen-free and automotive qualification are not mandated. |
Compared with SMAJ6.8A-Q and 1.5SMC6.8A, TPSMC6.8AHM3_B/H uniquely combines AEC-Q101 qualification, halogen-free construction, 185 °C operation, and MSL Level 1 - making it the only option among the three validated for under-hood automotive electronics with full traceability and long-lifecycle support.
Availability
TPSMC6.8AHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial power rail clamp, and telecom line interface applications requiring stable component supply, long-term lifecycle assurance, and full regulatory compliance documentation.
Supply support for TPSMC6.8AHM3_B/H 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 optoelectronics with emphasis on reliability, thermal performance, and automotive-grade validation.
The TPSMC series was developed specifically for high-temperature, high-surge automotive and industrial applications - delivering AEC-Q101-qualified transient protection in ruggedized SMC packaging with extended junction temperature capability.
FAQ
What is the clamping voltage of TPSMC6.8AHM3_B/H at its rated peak pulse current?
The TPSMC6.8AHM3_B/H has a maximum clamping voltage (VC) of 10.5 V at its specified peak pulse current (IPPM) of 143 A, measured using the standardized 10/1000 μs waveform. This value ensures that downstream components connected to the protected line remain below their absolute maximum voltage ratings during surge events. The TPSMC6.8AHM3_B/H achieves this clamping performance while maintaining low dynamic impedance, contributing to reliable transient suppression across its operational temperature range.
Is TPSMC6.8AHM3_B/H qualified for automotive applications?
Yes, TPSMC6.8AHM3_B/H is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix HM3. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock - validating its suitability for automotive powertrain, body electronics, and ADAS subsystems. The TPSMC6.8AHM3_B/H also meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow requirements, supporting automated manufacturing in Tier 1 supply chains.
What does the "HM3" suffix mean in TPSMC6.8AHM3_B/H?
The "HM3" suffix in TPSMC6.8AHM3_B/H indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from HE3 (RoHS-compliant and AEC-Q101 qualified but not halogen-free) and standard non-qualified versions. The "B/H" further specifies tape-and-reel packaging in 7-inch reels with 850 units per reel. This full suffix ensures traceability to Vishay's material declarations and reliability test reports for TPSMC6.8AHM3_B/H.
How does TPSMC6.8AHM3_B/H compare to TPSMC6.8AHE3_B/H?
TPSMC6.8AHM3_B/H and TPSMC6.8AHE3_B/H share identical electrical specifications, package (SMC), and AEC-Q101 qualification, but differ in material composition: HM3 is halogen-free while HE3 is not. Both meet RoHS and JESD201 Class 2 whisker requirements. For applications requiring halogen-free compliance - such as EU automotive OEMs or green electronics initiatives - TPSMC6.8AHM3_B/H is mandatory. The TPSMC6.8AHM3_B/H maintains full form-fit-function equivalence with TPSMC6.8AHE3_B/H in PCB layout and circuit design.
What is the maximum operating temperature for TPSMC6.8AHM3_B/H?
The TPSMC6.8AHM3_B/H has a maximum junction temperature (TJ) rating of +185 °C, verified per Vishay's qualification testing and documented in the 88407 datasheet. This allows reliable operation in high-ambient environments such as engine compartments, industrial motor drives, and enclosed power supplies. Derating curves in Figure 2 show how peak pulse power decreases linearly above 25 °C ambient, ensuring safe operation across the full -65 °C to +185 °C junction range for TPSMC6.8AHM3_B/H.
TPSMC6.8AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 143A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
TPSMC6.8AHM3_B/H FAQ
1.How can I place an order for TPSMC6.8AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC6.8AHM3_B/H 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 TPSMC6.8AHM3_B/H reliable?
The price and inventory of TPSMC6.8AHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC6.8AHM3_B/H is usually 5 days.
3.What payment methods are accepted for TPSMC6.8AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC6.8AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC6.8AHM3_B/H?
TPSMC6.8AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC6.8AHM3_B/H 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 TPSMC6.8AHM3_B/H?
For technical support, including TPSMC6.8AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC6.8AHM3_B/H requirements.
6.How does Aetrix verify that TPSMC6.8AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All TPSMC6.8AHM3_B/H 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 TPSMC6.8AHM3_B/H meets industry standards.
7.What is the process for return or replacement of TPSMC6.8AHM3_B/H?
All TPSMC6.8AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC6.8AHM3_B/H, 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 TPSMC6.8AHM3_B/H part is unused and in its original packaging.
Return procedure for TPSMC6.8AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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