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Vishay General Semiconductor - Diodes Division TPSMA6.8AHM3_B/I
- Part No.:
- TPSMA6.8AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA6.8AHM3_B/I.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,807
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Product details
Overview
TPSMA6.8AHM3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, rated for 6.8 V breakdown voltage (VBR), 400 W peak pulse power (10/1000 µs), and 185 °C maximum junction temperature - designed to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the TPSMA6.8AHM3_B/I datasheet, TPSMA6.8AHM3_B/I pinout, TPSMA6.8AHM3_B/I application, or TPSMA6.8AHM3_B/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, clamping performance at 38.1 V, thermal derating behavior, and halogen-free RoHS-compliant sourcing details.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-reliability transient suppression. Its unidirectional polarity enables forward-biased surge handling on power rails while maintaining low leakage (<300 µA at 5.8 V) and fast response time under ESD and lightning-induced transients.
The device operates across –65 °C to +185 °C junction temperature range and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. It is qualified to AEC-Q101 and features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 6.45 / 6.80 / 7.14 V at 10 mA - defines precise clamping onset threshold for overvoltage protection |
| VWM | 5.8 V - maximum continuous reverse working voltage before leakage exceeds 300 µA |
| VC @ IPPM | 38.1 V - clamped voltage during 400 W transient, limiting stress on downstream components |
| PPPM | 400 W (10/1000 µs waveform) - peak surge energy absorption capability under standardized test conditions |
| TJ max. | +185 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 0.208" x 0.157" footprint and 0.078" height |
Pinout & Package
Package: SMA (DO-214AC), molded case meeting UL 94 V-0 flammability rating; matte tin-plated leads; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to protected line (e.g., 12 V supply or signal trace) to clamp positive surges |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier design ensures stable VBR drift <0.047 %/°C and low leakage at high temperature |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Halogen-free & RoHS | HM3 suffix denotes compliance with JEDEC J-STD-609A Class 1 and EU RoHS Directive 2011/65/EU |
| Low incremental surge resistance | Enables tight clamping (VC/IPPM = 38.1 V / ~10.5 A) without excessive voltage overshoot |
| MSL Level 1 | Zero moisture sensitivity - safe for standard SMT reflow up to 260 °C peak without baking |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Suppressing load-dump transients on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp spikes up to 40 V. Use Value: Withstands 400 W pulses and operates up to 185 °C, enabling placement near engine control modules without derating. | Use Scenario: Protecting analog outputs of pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Low-leakage (300 µA @ 5.8 V) TVS shunting ESD events on 0–5 V signal lines. Use Value: Fast response and 38.1 V clamping prevent latch-up or damage to precision ADC front-ends. |
| Consumer Power Adapter Surge Suppression | Telecom DC Input Transient Guard |
Use Scenario: Safeguarding AC/DC adapter secondary-side 5 V outputs against switching noise and lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 10/1000 µs transients on regulated output rails. Use Value: 1.0 W steady-state power dissipation supports continuous operation with minimal thermal rise on PCB. | Use Scenario: Shielding PoE-powered network switches from induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: High-energy TVS mounted at board edge to divert >1 kV transients before reaching PMICs. Use Value: 40 A IFSM rating handles repeated 8.3 ms half-sine surges without bond-wire failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Same VBR (6.45–7.14 V), but SMB package (DO-214AA); 600 W PPPM; higher thermal mass | Requires larger PCB pad layout; better for higher average power; not drop-in compatible | Select when higher pulse energy margin or legacy SMB footprint is required |
| 1.5SMC6.8A | Same VBR | TO-277 (SMD) package; 1500 W PPPM; higher IPPM (~160 A); no AEC-Q101 qualification | Select for non-automotive systems needing higher single-pulse robustness without qualification requirements |
Compared with SMBJ6.8A and 1.5SMC6.8A, the TPSMA6.8AHM3_B/I offers optimal balance of AEC-Q101 qualification, halogen-free compliance, compact SMA footprint, and validated 185 °C operation - making it preferred for space-constrained automotive and industrial designs where reliability and regulatory alignment are critical.
Availability
TPSMA6.8AHM3_B/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, consumer power adapters, and telecom DC inputs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPSMA6.8AHM3_B/I 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 qualification.
The TPSMA6.8AHM3_B/I belongs to Vishay's PAR® (Protected Anisotropic Rectifier) TVS family, engineered specifically for high-temperature, high-reliability transient suppression in automotive power systems and harsh-environment industrial controls.
FAQ
What is the breakdown voltage tolerance of the TPSMA6.8AHM3_B/I?
The TPSMA6.8AHM3_B/I has a specified breakdown voltage (VBR) range of 6.45 V (min) to 7.14 V (max) at 10 mA test current, with nominal 6.80 V. This ±5% tolerance ensures consistent clamping behavior across production lots and supports reliable overvoltage protection design margins in automotive and industrial applications where the TPSMA6.8AHM3_B/I is deployed.
Is the TPSMA6.8AHM3_B/I qualified for automotive use?
Yes, the TPSMA6.8AHM3_B/I is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HM3", which denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. The TPSMA6.8AHM3_B/I undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD, making it suitable for under-hood and chassis-mounted automotive electronics.
What is the clamping voltage of the TPSMA6.8AHM3_B/I at its rated peak pulse current?
The TPSMA6.8AHM3_B/I exhibits a maximum clamping voltage (VC) of 38.1 V when subjected to its rated peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured at the device's specified 400 W peak pulse power level and directly determines the maximum transient voltage seen by protected circuitry - a key parameter for validating system-level surge immunity with the TPSMA6.8AHM3_B/I.
Does the TPSMA6.8AHM3_B/I have a unidirectional or bidirectional configuration?
The TPSMA6.8AHM3_B/I is a unidirectional TVS diode, as explicitly stated in Vishay's datasheet. It protects against positive-going transients only and must be oriented with its cathode (marked by a band) toward the protected line. Bidirectional variants are not offered in the TPSMA6.8A series; using the TPSMA6.8AHM3_B/I in reverse-biased configurations will not provide symmetrical clamping.
What packaging and reel options are available for the TPSMA6.8AHM3_B/I?
The TPSMA6.8AHM3_B/I is supplied in 13-inch diameter plastic tape and reel format with a base quantity of 7500 units per reel, as indicated by the "I" package code in its ordering designation. This packaging supports high-volume automated SMT assembly and complies with EIA-481 standards. The TPSMA6.8AHM3_B/I uses matte tin-plated leads and meets J-STD-002 solderability requirements.
TPSMA6.8AHM3_B/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- 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):
- 38.1A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
TPSMA6.8AHM3_B/I FAQ
1.How can I place an order for TPSMA6.8AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA6.8AHM3_B/I 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 TPSMA6.8AHM3_B/I reliable?
The price and inventory of TPSMA6.8AHM3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA6.8AHM3_B/I is usually 5 days.
3.What payment methods are accepted for TPSMA6.8AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA6.8AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA6.8AHM3_B/I?
TPSMA6.8AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA6.8AHM3_B/I 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 TPSMA6.8AHM3_B/I?
For technical support, including TPSMA6.8AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA6.8AHM3_B/I requirements.
6.How does Aetrix verify that TPSMA6.8AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMA6.8AHM3_B/I 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 TPSMA6.8AHM3_B/I meets industry standards.
7.What is the process for return or replacement of TPSMA6.8AHM3_B/I?
All TPSMA6.8AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA6.8AHM3_B/I, 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 TPSMA6.8AHM3_B/I part is unused and in its original packaging.
Return procedure for TPSMA6.8AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA6.8AHM3_B/I Tags
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