My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMC6.8HE3_A/H
- Part No.:
- TPSMC6.8HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC6.8HE3_A/H.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,471
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMC6.8HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, designed for clamping fast-rising voltage transients on power and signal lines. It features 6.12 V minimum breakdown voltage (VBR), 5.5 V maximum working voltage (VWM), 1500 W peak pulse power (10/1000 μs), 10.8 V clamping voltage at 139 A peak current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the TPSMC6.8HE3_A/H datasheet, TPSMC6.8HE3_A/H pinout, TPSMC6.8HE3_A/H application, or TPSMC6.8HE3_A/H equivalent, key selection criteria include unidirectional polarity, 185 °C junction temperature rating, MSL Level 1 moisture sensitivity, and compatibility with high-surge industrial and automotive power rail protection layouts.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge stress and elevated ambient temperatures. Its 10.8 V clamping voltage at 139 A (10/1000 μs) ensures robust overvoltage protection for downstream MOSFETs and ICs without excessive forward conduction loss.
The device operates across -65 °C to +185 °C junction temperature range and meets JESD201 Class 2 whisker resistance requirements. Its matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards, supporting lead-free reflow assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 6.12 V min / 7.48 V max at 10 mA - defines precise voltage threshold where clamping initiates |
| Working Voltage (VWM) | 5.5 V max - maximum continuous DC or RMS voltage the device blocks without leakage exceeding 1000 μA |
| Clamping Voltage (VC) | 10.8 V at 139 A (10/1000 μs) - peak voltage seen by protected circuit during worst-case surge |
| Peak Pulse Power (PPPM) | 1500 W (10/1000 μs) - determines energy-handling capability for lightning or inductive-switching transients |
| Junction Temperature (TJ) | -65 °C to +185 °C - enables operation in under-hood automotive and industrial environments without derating |
| Surge Current (IPPM) | 139 A (10/1000 μs) - peak current the device safely shunts while maintaining clamping performance |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, molded case meeting UL 94 V-0 flammability rating. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during reverse-biased clamping | Connected to protected line (e.g., 5 V rail); must be routed with low-inductance path to ground |
| Cathode | Current exit point during clamping; marked with band | Connected to system ground plane; critical for minimizing clamping loop inductance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| TJ = 185 °C capability | Enables use in high-temperature zones (e.g., engine control units) without thermal derating penalties |
| MSL Level 1 (260 °C peak) | Allows standard lead-free reflow without baking or special handling prior to assembly |
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out on PCB |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (< 1 ns rise time), improving protection margin |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 5 V supply rails in engine control modules (ECMs) from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between input rail and chassis ground. Use Value: Clamps transients to ≤10.8 V within nanoseconds, preventing damage to 5 V microcontrollers and CAN transceivers rated for 6 V absolute max. |
Use Scenario: Safeguarding analog output lines of pressure sensors in factory automation systems exposed to relay coil switching noise. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on 0–5 V sensor output traces. Use Value: Limits induced spikes to <11 V while adding <1 pF parasitic capacitance, preserving signal integrity up to 1 MHz bandwidth. |
| Telecom DC Power Input Protection | Computer Peripheral USB VBUS Protection |
Use Scenario: Front-end surge suppression on 48 V DC inputs of PoE-powered network switches. IC Role / Device Role / Timing Role: Primary clamping device in multi-stage protection scheme upstream of DC-DC converters. Use Value: Handles 1500 W surges per IEC 61000-4-5, enabling compliance with EN 61000-6-2 immunity requirements. |
Use Scenario: Overvoltage protection on USB 2.0 VBUS line against hot-plug and ESD events. IC Role / Device Role / Timing Role: Secondary-level TVS after primary ESD diode, targeting higher-energy transients. Use Value: Withstands 200 A non-repetitive forward surge (8.3 ms), protecting USB port controllers from sustained overvoltage faults. |
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-E3/5AT | Lower PPPM (400 W), smaller SMA package, 11.2 V clamping at 35.2 A | Limited to lower-energy transients; not AEC-Q101 qualified | Select for cost-sensitive consumer electronics where 1500 W rating is unnecessary |
| 1.5KE6.8A | Through-hole DO-201 package, 1500 W rating, 10.5 V clamping at 143 A, but no AEC-Q101 or MSL Level 1 | Requires wave soldering; unsuitable for automated SMT lines or automotive production | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMAJ6.8A-E3/5AT and 1.5KE6.8A, the TPSMC6.8HE3_A/H delivers automotive-grade reliability, surface-mount scalability, and full 1500 W surge capacity in a single DO-214AB footprint-making it the preferred choice for production-grade automotive and industrial power rail protection.
Availability
TPSMC6.8HE3_A/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom DC input protection requiring stable component supply, AEC-Q101 compliance, and high-temperature operational assurance.
Supply support for TPSMC6.8HE3_A/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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The TPSMC6.8HE3_A/H belongs to Vishay's PAR® series of transient voltage suppressors, engineered specifically for high-temperature stability and repeatable clamping performance in harsh-environment power protection circuits.
FAQ
What is the maximum working voltage (VWM) of the TPSMC6.8HE3_A/H?
The TPSMC6.8HE3_A/H has a maximum working voltage (VWM) of 5.5 V at 25 °C. This means it reliably blocks voltages up to 5.5 V in normal operation while maintaining reverse leakage below 1000 μA. At elevated temperatures (e.g., 150 °C), leakage increases to 10,000 μA, but VWM remains unchanged. The TPSMC6.8HE3_A/H is therefore suited for 5 V systems where transient headroom above nominal rail is limited.
Is the TPSMC6.8HE3_A/H AEC-Q101 qualified?
Yes, the TPSMC6.8HE3_A/H is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 22-Jul-16 (Document Number: 88407). This qualification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling, validating its suitability for automotive electronic control units and powertrain modules. The TPSMC6.8HE3_A/H carries the "HE3" suffix denoting RoHS compliance and AEC-Q101 qualification.
What is the clamping voltage (VC) of the TPSMC6.8HE3_A/H at rated surge current?
The TPSMC6.8HE3_A/H exhibits a maximum clamping voltage (VC) of 10.8 V at 139 A peak pulse current, measured using the standardized 10/1000 μs waveform. This value represents the worst-case voltage imposed on the protected circuit during a full-rated surge event. The low VC relative to VBR reflects optimized junction design and ensures safe operation for 5 V logic devices with 6 V absolute maximum ratings. The TPSMC6.8HE3_A/H maintains this clamping performance across its full operating temperature range.
Does the TPSMC6.8HE3_A/H have bidirectional polarity?
No, the TPSMC6.8HE3_A/H is unidirectional only, as stated in the Vishay datasheet under FEATURES. It protects against positive-going transients on the cathode side and conducts only when the cathode is at a higher potential than the anode. For AC or bipolar transient protection, a separate bidirectional variant (e.g., TPSMC6.8AHE3_A/H) would be required-but that part is distinct from the TPSMC6.8HE3_A/H. Polarity is marked by a cathode band on the DO-214AB package body.
What is the moisture sensitivity level (MSL) rating for the TPSMC6.8HE3_A/H?
The TPSMC6.8HE3_A/H is rated MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. This means the device can be stored indefinitely at ambient conditions and placed directly into standard lead-free reflow ovens without pre-baking. The MSL Level 1 rating is enabled by Vishay's moisture-resistant molding compound and is verified in the datasheet under MECHANICAL DATA. This simplifies manufacturing for the TPSMC6.8HE3_A/H in high-volume SMT lines.
TPSMC6.8HE3_A/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:
- 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):
- 139A
- 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 (SMC)
TPSMC6.8HE3_A/H FAQ
1.How can I place an order for TPSMC6.8HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC6.8HE3_A/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 TPSMC6.8HE3_A/H reliable?
The price and inventory of TPSMC6.8HE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC6.8HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC6.8HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC6.8HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC6.8HE3_A/H?
TPSMC6.8HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC6.8HE3_A/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 TPSMC6.8HE3_A/H?
For technical support, including TPSMC6.8HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC6.8HE3_A/H requirements.
6.How does Aetrix verify that TPSMC6.8HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC6.8HE3_A/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 TPSMC6.8HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC6.8HE3_A/H?
All TPSMC6.8HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC6.8HE3_A/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 TPSMC6.8HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC6.8HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC6.8HE3_A/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
