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Vishay General Semiconductor - Diodes Division TPSMP8.2AHM3/85A
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- Part No.:
- TPSMP8.2AHM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP8.2AHM3/85A.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,966
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Product details
Overview
TPSMP8.2AHM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability circuit protection with 7.79 V to 8.61 V breakdown voltage (VBR), 7.02 V stand-off voltage (VWM), and 300 W peak pulse power (PPPM) at 10/1000 µs waveform. It clamps transients to ≤24.8 V at 200 A peak surge current and operates up to +185 °C junction temperature, targeting automotive and industrial sensor line protection.
For engineers reviewing the TPSMP8.2AHM3/85A datasheet, TPSMP8.2AHM3/85A pinout, TPSMP8.2AHM3/85A application, or TPSMP8.2AHM3/85A equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-220AA mechanical dimensions, clamping behavior under surge conditions, and direct alternatives with documented parameter differences.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD and lightning-induced transients. Its unidirectional polarity and 7.02 V reverse stand-off voltage allow integration into DC-biased signal or power rails without leakage concerns at nominal operating voltage.
The device is rated for 40 A non-repetitive forward surge current (IFSM) and dissipates 2.5 W continuously at 75 °C ambient on infinite heatsink. Thermal design must account for derating above 25 °C per Figure 2, and PCB layout requires 5.0 mm × 5.0 mm copper pads per terminal to sustain full PPPM capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V - defines minimum trigger threshold and maximum variation band for reliable overvoltage detection |
| VWM | 7.02 V - maximum continuous reverse voltage before significant leakage; sets upper limit for protected circuit DC bias |
| IR @ VWM | 50.0 μA - low leakage ensures minimal power loss and signal integrity in standby or low-power modes |
| PPPM | 300 W - peak transient energy absorption capacity under 10/1000 µs waveform, validated with 5.0 mm × 5.0 mm PCB pads |
| VC @ IPPM | 24.8 V - clamped voltage at 200 A surge, determining maximum stress imposed on downstream ICs during transient events |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-temperature industrial enclosures |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards |
Pinout & Package
TPSMP8.2AHM3/85A is housed in the DO-220AA (SMP) surface-mount package - a low-profile (1.0 mm typical height), halogen-free, RoHS-compliant case with matte tin-plated leads meeting J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements. Polarity is marked by a cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side of protected line; conducts during positive transients when cathode is biased higher |
| Cathode | Reverse-biased reference terminal | Connected to higher-potential rail (e.g., VCC or signal high); defines clamping reference and carries surge current to ground or rail |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR tolerance (±5 %) and low dynamic impedance across temperature and lifetime |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without preconditioning, simplifying SMT manufacturing |
| 185 °C junction rating | Supports placement near heat sources (e.g., power MOSFETs, motor drivers) without thermal derating penalties |
| Low profile (1.0 mm height) | Reduces board stack height and improves airflow in dense automotive ECUs and industrial controllers |
| Uni-directional configuration | Optimized for DC-biased lines where reverse conduction is not required, minimizing capacitance vs. bi-directional variants |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control modules against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller input to clamp transients before they reach ESD-sensitive analog front-ends. Use Value: Clamps 200 A surges to ≤24.8 V while maintaining <50 μA leakage at 7.02 V, preserving signal fidelity and preventing latch-up in 3.3 V/5 V ADC interfaces. | Use Scenario: Safeguarding gate driver enable inputs and feedback signals in variable-frequency drives exposed to inductive switching noise and ground bounce. IC Role / Device Role / Timing Role: Transient suppressor on isolated logic-level control lines connecting PLC outputs to IGBT gate drivers. Use Value: Withstands 300 W peak pulse energy and operates reliably at +185 °C, ensuring protection integrity in sealed drive enclosures with limited airflow. |
| Consumer Power Adapter Outputs | Telecom Line Interface Circuits |
Use Scenario: Secondary-side overvoltage protection on 5 V/9 V USB PD adapter outputs subjected to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after DC-DC post-regulator to absorb residual spikes before reaching connected devices. Use Value: 7.02 V VWM avoids false triggering during normal 5.5 V tolerance operation, while 24.8 V clamping prevents damage to USB-C controller ICs. | Use Scenario: Surge protection on RS-485 transceiver data lines in outdoor base station equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on differential pair inputs referenced to local ground, coordinated with common-mode chokes. Use Value: Low 1.0 mm profile allows placement adjacent to connector footprints; AEC-Q101 qualification ensures long-term stability in field-deployed telecom infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | DO-214AC (SMA) package; 8.0 V nominal VBR; 400 W PPPM; 27.7 V VC @ 22.5 A | Higher clamping voltage and lower surge current rating; larger footprint (2.54 mm height) | Select when higher PPPM is needed but board space allows SMA package and thermal management supports lower IPPM |
| TPSMAJ8.0A | DO-214AC (SMA) package; same VBR/VC specs as SMAJ8.0A; AEC-Q101 qualified | Same form factor limitation as SMAJ8.0A; lacks TPSMP8.2AHM3/85A's 1.0 mm profile and DO-220AA thermal efficiency | Choose only if existing SMA footprint reuse is mandatory and height constraint is relaxed beyond 1.0 mm |
Compared with SMAJ8.0A and TPSMAJ8.0A, TPSMP8.2AHM3/85A delivers superior board-level density (1.0 mm height), optimized thermal performance via DO-220AA pad layout, and tighter VBR tolerance (±5 %), making it preferred for next-generation automotive and space-constrained industrial designs requiring AEC-Q101 compliance.
Availability
TPSMP8.2AHM3/85A is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor drive inputs, and consumer power adapter outputs requiring stable component supply, AEC-Q101 qualification, and high-power-density transient suppression.
Supply support for TPSMP8.2AHM3/85A 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, MOSFETs, and protection devices engineered for reliability, efficiency, and long service life.
The TPSMP series belongs to Vishay's PAR® (Protection Against Risk) transient voltage suppressor family, developed specifically for high-energy surge immunity in automotive, industrial, and harsh-environment applications demanding AEC-Q101 qualification and extended temperature operation.
FAQ
What is the breakdown voltage range for TPSMP8.2AHM3/85A?
The TPSMP8.2AHM3/85A has a guaranteed breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, reflecting its ±5 % tolerance grade. This tight VBR window ensures consistent triggering behavior across production lots and temperature extremes, critical for protecting 5 V and 8 V logic rails without premature conduction or delayed clamping. The value is measured per ANSI/IEEE C62.35 standards using a square-wave pulse.
Is TPSMP8.2AHM3/85A suitable for automotive applications?
Yes, TPSMP8.2AHM3/85A is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature, making it suitable for under-hood and transmission-control module applications. Its DO-220AA package meets MSL Level 1, and its construction includes halogen-free, RoHS-compliant materials with JESD201 Class 2 whisker resistance - all requirements for automotive-grade components. The device is explicitly listed in Vishay's automotive-grade TPSMP family documentation.
What is the clamping voltage of TPSMP8.2AHM3/85A at maximum surge current?
At its rated peak pulse current of 200 A (10/1000 µs waveform), the TPSMP8.2AHM3/85A clamps to a maximum of 24.8 V. This clamping voltage is measured under standardized test conditions with 5.0 mm × 5.0 mm copper pads per terminal and defines the upper voltage stress imposed on protected circuitry during worst-case transients. It directly determines compatibility with 24 V system ICs and interface components.
Does TPSMP8.2AHM3/85A have bidirectional capability?
No, TPSMP8.2AHM3/85A is a unidirectional TVS diode, intended for use on DC-biased lines where reverse conduction is not required. Its polarity is marked by a cathode band, and it conducts only when the cathode is at a higher potential than the anode. For AC or bipolar signal lines, a bidirectional variant such as TPSMP8.2AHM3/85A's counterpart in the bi-directional TPSMPxxCA series would be required instead.
What packaging option does TPSMP8.2AHM3/85A use?
TPSMP8.2AHM3/85A is supplied in 13-inch diameter plastic tape and reel format, with a base quantity of 10,000 units per reel (ordering code suffix /85A). The device uses the DO-220AA (SMP) surface-mount package - measuring 3.61 mm × 2.67 mm × 1.0 mm - optimized for automated placement and high thermal efficiency via large copper pad coupling.
TPSMP8.2AHM3/85A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- 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):
- 24.8A
- Power - Peak Pulse:
- 300W
- 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-220AA (SMP)
TPSMP8.2AHM3/85A FAQ
1.How can I place an order for TPSMP8.2AHM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP8.2AHM3/85A 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 TPSMP8.2AHM3/85A reliable?
The price and inventory of TPSMP8.2AHM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP8.2AHM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP8.2AHM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP8.2AHM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP8.2AHM3/85A?
TPSMP8.2AHM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP8.2AHM3/85A 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 TPSMP8.2AHM3/85A?
For technical support, including TPSMP8.2AHM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP8.2AHM3/85A requirements.
6.How does Aetrix verify that TPSMP8.2AHM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP8.2AHM3/85A 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 TPSMP8.2AHM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP8.2AHM3/85A?
All TPSMP8.2AHM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP8.2AHM3/85A, 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 TPSMP8.2AHM3/85A part is unused and in its original packaging.
Return procedure for TPSMP8.2AHM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP8.2AHM3/85A Tags
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