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Vishay General Semiconductor - Diodes Division TPSMB8.2AHE3_A/H
- Part No.:
- TPSMB8.2AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB8.2AHE3_A/H.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,321
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Product details
Overview
TPSMB8.2AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 8.2 V breakdown voltage (VBR), 7.02 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 49.6 V clamping voltage at 49.6 A peak surge current, and operates up to +185 °C junction temperature. It is used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the TPSMB8.2AHE3_A/H datasheet, TPSMB8.2AHE3_A/H pinout, TPSMB8.2AHE3_A/H application, or TPSMB8.2AHE3_A/H equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C thermal rating, and verified clamping performance under 10/1000 µs surge conditions.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with junction passivation optimized for high-reliability operation. Its unidirectional architecture provides low-leakage reverse blocking (100 µA max at VWM) and fast response time to transient events, enabling effective protection of downstream ICs and MOSFETs without forward conduction interference.
The device is rated for 75 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 3.5 V maximum forward voltage at 50 A, and maintains stable VBR across temperature via a +0.056 %/°C temperature coefficient - critical for consistent clamping in automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.79 / 8.20 / 8.61 V - ensures reliable turn-on above system operating voltage while avoiding false triggering |
| VWM | 7.02 V - defines maximum continuous reverse working voltage before leakage exceeds 100 µA |
| VC @ IPPM | 49.6 V - clamping voltage at peak surge current; limits stress on protected circuitry during transients |
| PPPM | 600 W - peak pulse power handling capability per 10/1000 µs waveform, supporting robust surge immunity |
| TJ max. | +185 °C - enables use in high-temperature automotive and industrial environments without derating |
| Polarity | Unidirectional - blocks reverse voltage only; requires correct orientation relative to protected line polarity |
| MSL Level | Level 1 (J-STD-020) - supports standard reflow without moisture sensitivity concerns |
Pinout & Package
TPSMB8.2AHE3_A/H is housed in an SMB (DO-214AA) surface-mount package with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. The cathode is marked by a color band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during clamping | Connected to lower-potential side (e.g., ground or return path); conducts surge current to reference plane |
| Cathode | Current exit terminal during clamping | Connected to protected line (e.g., 5 V rail or sensor output); defines polarity and clamping threshold |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails |
| Junction passivation | Enhances long-term reliability and stability under high-temperature bias stress and humidity exposure |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving protection margin for sensitive ICs |
| 185 °C junction rating | Supports uninterrupted operation in under-hood and industrial control cabinet environments without thermal shutdown |
| RoHS-compliant & halogen-free option | HE3 suffix denotes RoHS compliance; HM3 suffix adds halogen-free molding compound for stricter environmental requirements |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between signal line and chassis ground, activated within nanoseconds of overvoltage onset. Use Value: Prevents latch-up or permanent damage to transceiver ICs by limiting transient voltage to ≤49.6 V while maintaining <100 µA leakage at 7.02 V nominal rail. | Use Scenario: Safeguarding digital input modules in programmable logic controllers against inductive kickback from solenoid and relay coils. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across input terminals to absorb repetitive 600 W surges without degradation. Use Value: Enables >100,000 surge cycles at rated conditions due to low incremental resistance and 185 °C thermal stability, reducing field failure rates. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters and USB PD chargers exposed to mains-borne transients. IC Role / Device Role / Timing Role: Fast-response clamping diode placed after rectification but before primary DC-DC controller input. Use Value: Clamps 10/1000 µs surges to 49.6 V while sustaining 75 A single-pulse surge, preserving regulator integrity and meeting IEC 61000-4-5 Level 3. | Use Scenario: Protecting Ethernet PHYs and DSL line drivers from lightning-induced common-mode surges on twisted-pair interfaces. IC Role / Device Role / Timing Role: Unidirectional TVS integrated into front-end filter network to shunt differential-mode transients to local ground. Use Value: Maintains <1 pF junction capacitance at zero bias (per typical curve), minimizing signal integrity impact on 100 Mbps+ data lines. |
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 | 8.0 V VBR min (vs. 7.79 V), 48.4 V VC, same SMB package and 600 W rating | Slightly lower clamping threshold; tighter VBR tolerance (±5 % vs. ±5.5 % for TPSMB8.2AHE3_A/H) | Select when tighter VBR tolerance and marginally lower clamping are required for 5 V systems with tight headroom |
| SMCJ8.0A | Same VBR/VC specs but in larger SMC (DO-214AB) package; 1500 W PPPM | Higher power handling but requires larger PCB footprint and different thermal layout | Choose for higher-energy surge environments where 600 W is insufficient, accepting increased board area and cost |
Compared with SMBJ8.0A, TPSMB8.2AHE3_A/H offers AEC-Q101 qualification and +185 °C operation - essential for automotive use - while SMCCJ8.0A trades compactness for higher surge capacity, making it suitable for industrial power supply inputs where space permits.
Availability
TPSMB8.2AHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer power adapter secondary sides, and telecom line interface protection requiring stable component supply and AEC-Q101 compliance.
Supply support for TPSMB8.2AHE3_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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, thermal performance, and automotive-grade qualification.
The TPSMB series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) transient suppressor product line, engineered specifically for high-temperature, high-reliability protection in automotive, industrial, and computing applications where sustained operation beyond 150 °C is required.
FAQ
What is the breakdown voltage specification for TPSMB8.2AHE3_A/H?
The TPSMB8.2AHE3_A/H has a guaranteed breakdown voltage (VBR) range of 7.79 V (minimum) to 8.61 V (maximum) at 10 mA test current, with a nominal value of 8.20 V. This specification is measured per ANSI/IEEE C62.35 and ensures predictable clamping onset across manufacturing lots and temperature extremes. The TPSMB8.2AHE3_A/H maintains this performance with a +0.056 %/°C temperature coefficient, allowing accurate system-level transient margin calculation.
Is TPSMB8.2AHE3_A/H qualified for automotive applications?
Yes, TPSMB8.2AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified construction. It supports junction temperatures up to +185 °C and meets MSL Level 1 per J-STD-020 - making it suitable for under-hood and transmission-control module applications. The TPSMB8.2AHE3_A/H qualification covers mechanical shock, temperature cycling, and high-temperature operating life testing per AEC-Q101 requirements.
What is the clamping voltage of TPSMB8.2AHE3_A/H at its rated surge current?
The TPSMB8.2AHE3_A/H has a maximum clamping voltage (VC) of 49.6 V at its peak pulse current (IPPM) of 49.6 A, tested with a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The TPSMB8.2AHE3_A/H achieves this with low incremental surge resistance, ensuring minimal overshoot and consistent protection across its operational lifetime and temperature range.
Does TPSMB8.2AHE3_A/H have unidirectional or bidirectional polarity?
TPSMB8.2AHE3_A/H is unidirectional only, as explicitly stated in the Vishay datasheet. Its cathode is marked by a color band, and it conducts surge current only when the cathode is at higher potential than the anode. This configuration provides low reverse leakage (<100 µA at 7.02 V) and avoids forward conduction during normal operation - a key requirement for protecting DC power rails and unidirectional signal paths. Bidirectional variants are not offered in the TPSMB8.2AHE3_A/H family.
What package type does TPSMB8.2AHE3_A/H use, and what are its mounting requirements?
TPSMB8.2AHE3_A/H uses the SMB (DO-214AA) surface-mount package, with dimensions of 4.57 mm × 3.94 mm × 2.20 mm and matte tin-plated leads. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads at each terminal for optimal thermal dissipation and surge current handling. The TPSMB8.2AHE3_A/H is rated MSL Level 1 and compatible with standard lead-free reflow profiles peaking at 260 °C, per J-STD-020.
TPSMB8.2AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 49.6A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMB)
TPSMB8.2AHE3_A/H FAQ
1.How can I place an order for TPSMB8.2AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB8.2AHE3_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 TPSMB8.2AHE3_A/H reliable?
The price and inventory of TPSMB8.2AHE3_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 TPSMB8.2AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMB8.2AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB8.2AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB8.2AHE3_A/H?
TPSMB8.2AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB8.2AHE3_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 TPSMB8.2AHE3_A/H?
For technical support, including TPSMB8.2AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB8.2AHE3_A/H requirements.
6.How does Aetrix verify that TPSMB8.2AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMB8.2AHE3_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 TPSMB8.2AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMB8.2AHE3_A/H?
All TPSMB8.2AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB8.2AHE3_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 TPSMB8.2AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMB8.2AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB8.2AHE3_A/H Tags
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