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Vishay General Semiconductor - Diodes Division TPSMC8.2AHE3/57T
- Part No.:
- TPSMC8.2AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC8.2AHE3/57T.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,543
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Product details
Overview
TPSMC8.2AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping inductive switching transients and lightning-induced surges on power rails and signal lines. It features 8.2 V breakdown voltage (VBR = 7.79–8.61 V at 10 mA), 7.02 V stand-off voltage (VWM), 12.1 V clamping voltage (VC) at 124 A peak pulse current, 1500 W peak pulse power (10/1000 μs), and operates up to +185 °C junction temperature - used in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMC8.2AHE3/57T datasheet, TPSMC8.2AHE3/57T pinout, TPSMC8.2AHE3/57T application, or TPSMC8.2AHE3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 12.1 V clamping performance at rated surge current, thermal stability up to 185 °C, and compatibility with standard SMC reflow profiles per J-STD-020 MSL level 1.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of fast-rising transients such as ESD and load dump events. Its junction passivation and high-temperature design support reliable operation under automotive-grade thermal stress conditions.
The device is rated for 1500 W peak pulse power (10/1000 μs waveform) with 124 A maximum peak pulse current (IPPM) and exhibits a typical temperature coefficient of VBR of +0.056 %/°C, allowing predictable voltage drift across its -65 °C to +185 °C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 7.79–8.61 V at 10 mA - defines minimum voltage at which clamping initiates under controlled test conditions |
| Stand-off Voltage VWM | 7.02 V - maximum continuous reverse working voltage before leakage exceeds 200 μA |
| Clamping Voltage VC | 12.1 V at 124 A (10/1000 μs) - peak voltage seen by protected circuit during worst-case surge |
| Peak Pulse Power | 1500 W (10/1000 μs) - energy-handling capability for transient suppression without failure |
| Junction Temperature Range | -65 °C to +185 °C - supports under-hood automotive and high-reliability industrial environments |
| Polarity | Unidirectional - protects against positive-going transients only; cathode marked by band |
| AEC-Q101 Qualified | Yes (HE3 suffix) - validated for automotive electronic systems per stress test requirements |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HE3 variant), MSL level 1, 260 °C reflow peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VWM exceeded |
| Anode | Reference / return path | Typically connected to system ground or lower-potential rail; completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier | Enables stable VBR and low leakage (<200 μA at VWM) over lifetime and temperature |
| TJ = 185 °C capability | Supports placement near heat sources (e.g., power converters) without derating in automotive modules |
| 1500 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surge (4 kV/2 Ω) on 12 V systems with margin |
| Low clamping ratio (VC/VBR ≈ 1.48) | Minimizes overvoltage stress on downstream ICs like MCUs and CAN transceivers |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units and body electronics |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power input and ground. Use Value: Limits transient voltage to ≤12.1 V during 124 A surges, preventing damage to 16 V-rated regulators and microcontrollers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance transient shunt on signal line referenced to local ground. Use Value: Clamps sub-100 ns ESD pulses while maintaining signal integrity due to fast response and minimal leakage at 7.02 V. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
Use Scenario: Safeguarding AC/DC adapter primary-side input against lightning-induced surges on mains-connected devices. IC Role / Device Role / Timing Role: Secondary-side TVS on DC output rail before LDO or buck converter. Use Value: Absorbs 1500 W surges without degradation, ensuring compliance with IEC 61000-4-5 in Class II consumer equipment. |
Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC feed lines. IC Role / Device Role / Timing Role: Unidirectional clamp on powered pair relative to return path. Use Value: Maintains 7.02 V stand-off while clamping to 12.1 V, compatible with IEEE 802.3af/at voltage margins and thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Lower peak power (600 W), smaller SMB package, VC = 12.7 V at 49.2 A | Not AEC-Q101 qualified; suitable for non-automotive consumer or industrial use only | Select when space-constrained layouts require smaller footprint and surge energy is ≤600 W |
| TPSMC8.2AHE3_A | Same electrical specs and qualification; differs only in revision code (A vs. 57T); identical thermal and mechanical behavior | No functional difference; both meet same AEC-Q101, RoHS, and MSL level 1 requirements | Choose based on availability and traceability preference; no design impact |
Compared with SMBJ8.0A, TPSMC8.2AHE3/57T delivers 2.5× higher surge energy handling and automotive qualification; compared with TPSMC8.2AHE3_A, it offers identical performance with updated manufacturing traceability but no electrical or thermal differentiation.
Availability
TPSMC8.2AHE3/57T is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interfaces, consumer power adapters, and telecom DC feed protection requiring stable component supply and long-term lifecycle continuity.
Supply support for TPSMC8.2AHE3/57T 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, high-temperature operation, and automotive qualification.
The TPSMC series is part of Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for robust transient suppression in harsh environments including automotive under-hood, industrial motor drives, and telecom infrastructure.
FAQ
What is the clamping voltage of the TPSMC8.2AHE3/57T and how is it measured?
The TPSMC8.2AHE3/57T has a maximum clamping voltage (VC) of 12.1 V at 124 A peak pulse current using the standardized 10/1000 μs double-exponential waveform. This value is measured under defined test conditions per ANSI/IEEE C62.35 and reflects the actual voltage imposed on the protected circuit during worst-case surge events. The TPSMC8.2AHE3/57T maintains this clamping performance across its full operating temperature range.
Is the TPSMC8.2AHE3/57T qualified for automotive applications?
Yes, the TPSMC8.2AHE3/57T is AEC-Q101 qualified, as confirmed by the HE3 suffix in its ordering code. It has passed all required stress tests including high-temperature operating life, temperature cycling, and humidity bias HAST, making it suitable for use in engine control units, body electronics, and ADAS modules. The TPSMC8.2AHE3/57T meets automotive reliability standards without derating up to +185 °C junction temperature.
What does the "57T" suffix indicate in TPSMC8.2AHE3/57T?
The "57T" suffix denotes the revision code and packaging configuration: "57" is the internal revision identifier, and "T" indicates tape-and-reel packaging per JEDEC standard. This distinguishes it from other variants like TPSMC8.2AHE3_A (earlier revision) or TPSMC8.2AHM3/57T (halogen-free version). The TPSMC8.2AHE3/57T remains fully RoHS-compliant and AEC-Q101 qualified regardless of revision code.
Can the TPSMC8.2AHE3/57T be used in bidirectional protection circuits?
No, the TPSMC8.2AHE3/57T is unidirectional only, as explicitly stated in the datasheet. It protects against positive transients on the cathode side relative to anode. For bidirectional protection, two TPSMC8.2AHE3/57T devices must be connected in series opposition, or a dedicated bidirectional TVS (e.g., TPSMC8.2CA) should be selected. Using the TPSMC8.2AHE3/57T in reverse-biased configurations risks premature breakdown or failure.
What is the maximum leakage current of the TPSMC8.2AHE3/57T at its stand-off voltage?
The TPSMC8.2AHE3/57T exhibits a maximum reverse leakage current (IR) of 200 μA at its stand-off voltage (VWM = 7.02 V) and ambient temperature of 25 °C. At elevated temperature (TJ = 150 °C), leakage increases to 2000 μA - still within specification and compatible with low-power sensor and MCU inputs. This leakage level ensures minimal quiescent power loss while maintaining effective transient response in the TPSMC8.2AHE3/57T.
TPSMC8.2AHE3/57T 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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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)
TPSMC8.2AHE3/57T FAQ
1.How can I place an order for TPSMC8.2AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC8.2AHE3/57T 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 TPSMC8.2AHE3/57T reliable?
The price and inventory of TPSMC8.2AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC8.2AHE3/57T is usually 5 days.
3.What payment methods are accepted for TPSMC8.2AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC8.2AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC8.2AHE3/57T?
TPSMC8.2AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC8.2AHE3/57T 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 TPSMC8.2AHE3/57T?
For technical support, including TPSMC8.2AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC8.2AHE3/57T requirements.
6.How does Aetrix verify that TPSMC8.2AHE3/57T is sourced from the original manufacturer or authorized distributors?
All TPSMC8.2AHE3/57T 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 TPSMC8.2AHE3/57T meets industry standards.
7.What is the process for return or replacement of TPSMC8.2AHE3/57T?
All TPSMC8.2AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC8.2AHE3/57T, 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 TPSMC8.2AHE3/57T part is unused and in its original packaging.
Return procedure for TPSMC8.2AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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