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Vishay General Semiconductor - Diodes Division TPSMC6.8AHE3_A/I
- Part No.:
- TPSMC6.8AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC6.8AHE3_A/I.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,468
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Product details
Overview
TPSMC6.8AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection of sensitive electronics. It features a 6.8 V breakdown voltage (VBR = 6.45–7.14 V at 10 mA), 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 - deployed in automotive power rails, industrial sensor interfaces, and MOSFET gate protection circuits.
For engineers reviewing the TPSMC6.8AHE3_A/I datasheet, TPSMC6.8AHE3_A/I pinout, TPSMC6.8AHE3_A/I application, or TPSMC6.8AHE3_A/I equivalent, key selection criteria include unidirectional polarity, SMC (DO-214AB) package compatibility, AEC-Q101 qualification status, TJ = 185 °C rating, and clamping performance under 10/1000 µs surge conditions.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable breakdown behavior and low incremental surge resistance. Its junction passivation enables reliable operation at TJ = 185 °C, meeting high-reliability automotive requirements per AEC-Q101 when ordered with HE3 suffix.
The device responds within picoseconds to transients induced by inductive load switching or ESD events, clamping reverse surges to ≤10.5 V at 143 A while maintaining <1000 µA leakage at 5.8 V (25 °C) and <10,000 µA at 150 °C - critical for protecting low-voltage logic and analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 6.45 / 6.80 / 7.14 V at 10 mA - defines precise voltage threshold where avalanche conduction begins, enabling accurate system-level overvoltage trip point design |
| VWM | 5.8 V - maximum continuous reverse operating voltage before significant leakage; ensures no interference with 5 V logic or USB-powered circuits |
| VC @ IPPM | 10.5 V at 143 A - clamping voltage during 1500 W surge; limits stress on downstream ICs such as microcontrollers or CAN transceivers |
| PPPM | 1500 W (10/1000 µs) - peak transient energy absorption capacity; supports IEC 61000-4-5 Level 4 surge immunity compliance |
| TJ max. | +185 °C - extended thermal capability allows placement near hot components (e.g., power MOSFETs, DC/DC converters) without derating |
| Polarity | Unidirectional - protects against negative-going transients only; requires correct orientation relative to protected line's reference ground |
| Leakage @ VWM | 1000 µA at 25 °C - low enough to avoid loading 5 V supply rails or high-impedance sensor outputs |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction; tied to protected line's lower-potential side (e.g., GND or signal return) | Provides low-VF path (3.5 V @ 100 A) during positive surges; must be routed with minimal inductance to avoid voltage overshoot |
| Cathode | Current exit terminal during reverse avalanche; connected to protected line's higher-potential side (e.g., VCC, data line) | Defines clamping node - all protected circuitry referenced to this point must remain within VC tolerance during surge events |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier | Enables stable VBR across temperature and lifetime, reducing calibration drift in precision sensor protection paths |
| TJ = 185 °C operation | Eliminates need for thermal derating in engine control units (ECUs), motor drives, and under-hood modules |
| 1500 W peak pulse power (10/1000 µs) | Meets ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 surge test requirements for automotive and industrial equipment |
| MSL Level 1 (260 °C reflow) | Supports standard lead-free PCB assembly without moisture sensitivity concerns or baking preconditioning |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including HTGB, HTRB, and temperature cycling - required for Tier 1 supplier BOMs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppresses load-dump spikes (up to 60 V, 100 ms) and alternator ripple on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and local regulator input to clamp transients before LDO or DC/DC stage. Use Value: Prevents regulator latch-up or burnout during cold-crank or jump-start events; leverages 185 °C rating for under-hood placement. | Use Scenario: Shields 4–20 mA current-loop transmitters and RS-485 nodes from field-induced surges in factory automation systems. IC Role / Device Role / Timing Role: Connected across signal pair (A/B) and ground to divert common-mode transients before receiver inputs. Use Value: Maintains <1000 µA leakage at 5.8 V to avoid disturbing loop accuracy; 10.5 V clamping preserves receiver common-mode range. |
| MOSFET Gate Protection | USB/Consumer Port ESD Suppression |
Use Scenario: Guards high-side N-channel MOSFET gates against Miller-induced voltage spikes during fast switching in BLDC motor drivers. IC Role / Device Role / Timing Role: Placed between gate and source to clamp dv/dt-induced overshoot exceeding VGS(max). Use Value: Fast response (<1 ps) prevents gate oxide rupture; low VC avoids unintended turn-on during transient events. | Use Scenario: Protects USB 2.0 D+/D− lines from human-body-model (HBM) ESD and cable discharge events in portable docking stations. IC Role / Device Role / Timing Role: Bidirectional protection not applicable - TPSMC6.8AHE3_A/I used on VBUS line only due to unidirectional polarity. Use Value: 1500 W rating handles contact discharge surges; RoHS/AEC-Q101 compliance supports global consumer product certifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A | Same SMC package, 600 W PPPM, VC = 11.5 V @ 65 A - lower surge capacity and higher clamping | Not AEC-Q101 qualified; suitable for cost-sensitive industrial but not automotive designs | Select SMAJ6.8A only if 600 W surge margin suffices and AEC-Q101 is not mandated. |
| TPSMC6.8AHE3_A/H | Identical electrical specs and AEC-Q101 qualification; differs only in tape-and-reel packaging (850 vs. 3500 units per reel) | No functional or application difference - purely logistics-driven part number variant | Choose TPSMC6.8AHE3_A/H for small-batch prototyping or low-volume production runs. |
Compared with SMAJ6.8A and TPSMC6.8AHE3_A/H, the TPSMC6.8AHE3_A/I offers full 1500 W surge handling and automotive qualification in a high-volume reel format - making it optimal for production ramp of AEC-compliant systems requiring robust, scalable sourcing.
Availability
TPSMC6.8AHE3_A/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and MOSFET gate safeguarding requiring stable component supply across multi-year production cycles.
Supply support for TPSMC6.8AHE3_A/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 TPSMC series belongs to Vishay's PAR® (Protected Avalanche Rectifier) family, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications demanding AEC-Q101 compliance and 185 °C operation.
FAQ
What is the clamping voltage of the TPSMC6.8AHE3_A/I and how does it protect downstream components?
The TPSMC6.8AHE3_A/I clamps at 10.5 V when subjected to its rated 143 A peak pulse current (10/1000 µs waveform). This limits the maximum voltage seen by protected ICs - such as microcontrollers or communication transceivers - during surge events. Because the clamping voltage remains well below typical absolute maximum ratings (e.g., 16 V for many 5 V logic ICs), the TPSMC6.8AHE3_A/I prevents latch-up, gate oxide damage, or permanent failure. Its low dynamic impedance ensures consistent clamping across varying surge magnitudes.
Is the TPSMC6.8AHE3_A/I AEC-Q101 qualified, and what does that mean for automotive use?
Yes, the TPSMC6.8AHE3_A/I is AEC-Q101 qualified, as confirmed by its HE3 suffix and Vishay documentation. AEC-Q101 certification validates reliability under accelerated stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling, and unbiased highly accelerated stress testing (uHAST). This qualification makes the TPSMC6.8AHE3_A/I acceptable for inclusion in Tier 1 automotive BOMs - particularly for engine control, body electronics, and ADAS subsystems where long-term field reliability is mandatory.
What is the difference between TPSMC6.8AHE3_A/I and TPSMC6.8AHE3_A/H?
The TPSMC6.8AHE3_A/I and TPSMC6.8AHE3_A/H share identical electrical specifications, thermal ratings, AEC-Q101 qualification, and SMC (DO-214AB) package. Their sole difference is packaging configuration: TPSMC6.8AHE3_A/I ships in 13-inch reels containing 3500 units, while TPSMC6.8AHE3_A/H uses 7-inch reels with 850 units. Both are RoHS-compliant and functionally interchangeable - selection depends solely on production volume and assembly line feeder compatibility.
Can the TPSMC6.8AHE3_A/I be used for bidirectional transient protection?
No, the TPSMC6.8AHE3_A/I is unidirectional only, as explicitly stated in Vishay's datasheet. It conducts in reverse avalanche mode to clamp positive transients on the cathode side but offers no protection against negative excursions on the anode side. For bidirectional protection (e.g., data lines like RS-485 or USB D+/D−), a dedicated bidirectional TVS such as SMBJ6.8CA or a dual-diode array must be used instead. Using TPSMC6.8AHE3_A/I in bidirectional configurations risks unprotected negative surges damaging downstream circuitry.
What is the maximum leakage current of the TPSMC6.8AHE3_A/I at its stand-off voltage and elevated temperature?
At 25 °C and VWM = 5.8 V, the TPSMC6.8AHE3_A/I exhibits a maximum reverse leakage current of 1000 µA. At elevated temperature (TJ = 150 °C), leakage increases to 10,000 µA (10 mA) under the same 5.8 V bias. This temperature-dependent leakage is fully specified and validated per JEDEC standards - designers must ensure downstream circuitry (e.g., high-impedance voltage dividers or current-sense amplifiers) can tolerate up to 10 mA leakage at worst-case operating temperature without performance degradation.
TPSMC6.8AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
TPSMC6.8AHE3_A/I FAQ
1.How can I place an order for TPSMC6.8AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC6.8AHE3_A/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 TPSMC6.8AHE3_A/I reliable?
The price and inventory of TPSMC6.8AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC6.8AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC6.8AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC6.8AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC6.8AHE3_A/I?
TPSMC6.8AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC6.8AHE3_A/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 TPSMC6.8AHE3_A/I?
For technical support, including TPSMC6.8AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC6.8AHE3_A/I requirements.
6.How does Aetrix verify that TPSMC6.8AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC6.8AHE3_A/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 TPSMC6.8AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC6.8AHE3_A/I?
All TPSMC6.8AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC6.8AHE3_A/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 TPSMC6.8AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC6.8AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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