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Vishay General Semiconductor - Diodes Division TPSMP7.5AHM3/85A
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- Part No.:
- TPSMP7.5AHM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP7.5AHM3/85A.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,488
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Product details
Overview
TPSMP7.5AHM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability overvoltage protection of sensitive electronics. It features a 7.13 V to 7.88 V breakdown voltage (VBR), 6.40 V stand-off voltage (VWM), 300 W peak pulse power (PPPM), and clamps at ≤26.5 V under 500 A surge current - ideal for automotive sensor line and microcontroller I/O protection.
For engineers reviewing the TPSMP7.5AHM3/85A datasheet, TPSMP7.5AHM3/85A pinout, TPSMP7.5AHM3/85A application, or TPSMP7.5AHM3/85A equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction rating, low-profile 1.0 mm height, MSL Level 1 reflow compatibility, and uni-directional clamping behavior in compact surface-mount form.
Technical Context
This TVS diode employs 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 per IEC 61000-4-2 and ISO 16750-2. Its unidirectional polarity supports DC-biased signal lines where reverse conduction must be blocked.
The device operates across -65 °C to +185 °C, with thermal derating defined up to 175 °C ambient, and achieves 2.5 W steady-state power dissipation on infinite heatsink at 75 °C. Its 10/1000 μs waveform capability and 40 A IFSM rating support robust surge handling in automotive power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 7.13 V to 7.88 V at 10 mA - defines precise turn-on threshold for reliable clamping onset |
| Stand-off Voltage VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 150 μA |
| Peak Pulse Power PPPM | 300 W (10/1000 μs) - sustains automotive-level load dump and ISO 7637-2 pulses |
| Clamping Voltage VC | ≤26.5 V at 500 A - limits protected circuit voltage during worst-case surge events |
| Operating Temperature Range | -65 °C to +185 °C - enables use in engine bay, transmission control, and under-hood modules |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling and HTRB |
| Package | DO-220AA (SMP) - ultra-low profile (1.0 mm typical height), halogen-free, RoHS-compliant |
Pinout & Package
DO-220AA (SMP) package: single-axis, two-terminal surface-mount device with cathode band marking; 1.0 mm typical height enables high-density PCB layouts and automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge or bias |
| Cathode (banded end) | Reverse-blocking / clamping terminal | Connected to higher-potential side; initiates avalanche breakdown when VRM exceeded |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR tolerance (±5 %) and low leakage (<150 μA at VWM) over lifetime |
| TJ = 185 °C capability | Supports operation in high-temperature automotive zones without derating penalties up to 175 °C ambient |
| Very low profile (1.0 mm height) | Reduces board space and mechanical stress in vibration-prone environments like ADAS camera modules |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and allows standard lead-free assembly without baking |
| Uni-directional configuration | Prevents reverse conduction in DC-coupled interfaces such as CAN bus termination or MCU GPIO lines |
Applications
| Automotive Sensor Protection | Microcontroller I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control units and body modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and ECU input to absorb ISO 16750-2 pulses and ESD events. Use Value: Maintains signal integrity by limiting transient voltage to ≤26.5 V while supporting 6.40 V operating range and 150 μA leakage at VWM. |
Use Scenario: Safeguarding 3.3 V or 5 V GPIO, UART, SPI, and reset pins of automotive-grade MCUs against coupling noise and connector hot-plug surges. IC Role / Device Role / Timing Role: Fast-response (sub-ns) clamping element placed directly at MCU pin to minimize trace inductance impact. Use Value: Enables compliance with IEC 61000-4-2 Level 4 (15 kV air / 8 kV contact) without compromising signal rise time due to low capacitance. |
| Power Line Transient Suppression | Industrial Communication Interface |
Use Scenario: Suppressing load dump and jump-start transients on 12 V power rails feeding infotainment head units and telematics control modules. IC Role / Device Role / Timing Role: Primary front-end TVS on fused VBAT input, coordinated with downstream TVS arrays and L-C filters. Use Value: Handles 300 W peak pulse power and 500 A surge current per 10/1000 μs waveform, meeting ISO 7637-2 Pulse 5a requirements. |
Use Scenario: Protecting RS-485 transceiver inputs in industrial gateways and vehicle-to-infrastructure (V2I) edge nodes exposed to long cable runs. IC Role / Device Role / Timing Role: Uni-directional clamping diode on receiver input line to prevent damage from induced surges without disrupting differential signaling. Use Value: Provides precise 6.40 V standoff and ≤26.5 V clamping to preserve common-mode range while maintaining <150 μA leakage at full operating temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A | DO-214AC (SMA) package; 7.22–8.02 V VBR; 400 W PPPM; 1.9 mm height | Higher surge rating but larger footprint and taller profile; less suitable for ultra-thin automotive modules | Select SMAJ7.5A only if board space permits larger package and higher clamping voltage (≤30.0 V) is acceptable. |
| TPSMA6.8A | Same DO-220AA package; lower 6.45–7.14 V VBR; 300 W PPPM; 6.0 V VWM | Designed for 5 V systems; not suitable for 6.4 V+ rail protection where tighter margin is required | Choose TPSMA6.8A only for legacy 5 V logic interfaces where lower standoff voltage aligns with system design. |
Compared with SMAJ7.5A and TPSMA6.8A, the TPSMP7.5AHM3/85A delivers optimal balance of low-profile packaging, AEC-Q101 qualification, and precise 6.40 V standoff - making it preferred for next-generation automotive ECUs requiring minimal Z-height and guaranteed high-temperature reliability.
Availability
TPSMP7.5AHM3/85A is available at Aetrix Electronics and suitable for automotive sensor protection, microcontroller I/O safeguarding, and power line transient suppression requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for TPSMP7.5AHM3/85A 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The TPSMP series belongs to Vishay's eSMP® family of high-power-density TVS diodes, engineered specifically for AEC-Q101-compliant overvoltage protection in space-constrained automotive electronics.
FAQ
What is the exact breakdown voltage range for TPSMP7.5AHM3/85A?
The TPSMP7.5AHM3/85A has a specified breakdown voltage (VBR) range of 7.13 V to 7.88 V at 10 mA test current, per the Vishay datasheet revision 22-Jul-16. This ±5 % tolerance ensures consistent clamping onset across production lots and temperature extremes, critical for protecting 6.4 V nominal circuits without premature conduction.
Is TPSMP7.5AHM3/85A qualified for automotive use?
Yes, the TPSMP7.5AHM3/85A is AEC-Q101 qualified and rated for operation from -65 °C to +185 °C junction temperature. Its construction meets automotive reliability standards including temperature cycling, highly accelerated life testing (HALT), and moisture sensitivity level (MSL) 1 - confirming suitability for under-hood and safety-critical ECUs.
What does the "HM3/85A" suffix indicate in TPSMP7.5AHM3/85A?
The "HM3" suffix denotes halogen-free, RoHS-compliant construction with JESD 201 Class 2 whisker resistance; "85A" specifies 13-inch tape-and-reel packaging with 10,000 units per reel. This packaging format supports high-volume SMT assembly and is compatible with industry-standard pick-and-place equipment.
How does TPSMP7.5AHM3/85A compare to bidirectional TVS diodes in protection circuits?
The TPSMP7.5AHM3/85A is unidirectional, meaning it blocks reverse current until breakdown occurs - ideal for DC-biased lines like MCU GPIO or sensor outputs. Unlike bidirectional variants, it avoids leakage paths in asymmetric voltage rails and provides tighter VWM/VBR margins, enhancing noise immunity in automotive signal chains.
What is the clamping voltage of TPSMP7.5AHM3/85A under maximum surge conditions?
At 500 A peak pulse current (10/1000 μs waveform), the TPSMP7.5AHM3/85A clamps to a maximum of 26.5 V. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry remains below destructive voltage thresholds during ISO 7637-2 and IEC 61000-4-5 surge events.
TPSMP7.5AHM3/85A 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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 26.5A
- 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)
TPSMP7.5AHM3/85A FAQ
1.How can I place an order for TPSMP7.5AHM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP7.5AHM3/85A 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 TPSMP7.5AHM3/85A reliable?
The price and inventory of TPSMP7.5AHM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP7.5AHM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP7.5AHM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP7.5AHM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP7.5AHM3/85A?
TPSMP7.5AHM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP7.5AHM3/85A 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 TPSMP7.5AHM3/85A?
For technical support, including TPSMP7.5AHM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP7.5AHM3/85A requirements.
6.How does Aetrix verify that TPSMP7.5AHM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP7.5AHM3/85A 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 TPSMP7.5AHM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP7.5AHM3/85A?
All TPSMP7.5AHM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP7.5AHM3/85A, 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 TPSMP7.5AHM3/85A part is unused and in its original packaging.
Return procedure for TPSMP7.5AHM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP7.5AHM3/85A Tags
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