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Vishay General Semiconductor - Diodes Division TPSMP10AHM3/85A
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- Part No.:
- TPSMP10AHM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP10AHM3/85A.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,388
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Product details
Overview
TPSMP10AHM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability automotive and industrial circuit protection. It features a 9.5 V minimum / 10.5 V maximum breakdown voltage (VBR), 8.55 V stand-off voltage (VWM), 14.5 V clamping voltage at 20 A peak pulse current (VC), and 300 W peak pulse power rating at 10/1000 µs waveform - deployed to safeguard signal lines and drive transistors against ESD and surge events.
For engineers reviewing the TPSMP10AHM3/85A datasheet, TPSMP10AHM3/85A pinout, TPSMP10AHM3/85A application, or TPSMP10AHM3/85A equivalent, this device is evaluated for AEC-Q101 qualification, 185 °C junction temperature capability, low-profile mounting (1.0 mm height), and MSL Level 1 reflow compatibility - critical for automotive ECUs, sensor interfaces, and industrial I/O modules requiring robust, surface-mount surge immunity.
Technical Context
The TPSMP10AHM3/85A operates as a silicon avalanche diode with passivated anisotropic rectifier technology, enabling fast response time (<1 ns) and low incremental surge resistance. Its unidirectional polarity (cathode band marked) supports DC-biased protection paths, and its thermal design sustains continuous operation up to TJ = 185 °C under derated power conditions.
It complies with ANSI/IEEE C62.35 surge standards and delivers stable clamping performance across -65 °C to +185 °C operating range. The device is optimized for automated placement on FR-4 PCBs using 5.0 mm × 5.0 mm copper pads per terminal, with matte tin-plated leads meeting J-STD-002 and JESD 22-B102 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 9.5 V / 10.5 V - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 8.55 V - maximum reverse working voltage before leakage exceeds 5 μA, ensuring no false conduction during normal operation |
| VC @ IPPM | 14.5 V at 20 A - clamping voltage limits protected IC voltage stress during 10/1000 µs surge transients |
| PPPM | 300 W - peak pulse power handling capacity for short-duration surges without failure |
| IFSM | 40 A - withstands 10 ms half-sine surge current, supporting robustness against load dump or inductive kick |
| TJ max. | 185 °C - enables deployment in under-hood automotive environments and high-temperature industrial enclosures |
| Package | DO-220AA (SMP) - ultra-low profile (1.0 mm typical height), halogen-free, RoHS-compliant, AEC-Q101 qualified |
Pinout & Package
TPSMP10AHM3/85A uses the DO-220AA (SMP) surface-mount package: 2-terminal, unidirectional configuration with cathode identified by a color band. Dimensions are 3.61 mm × 1.88 mm × 1.0 mm (L × W × H), optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance reference in unidirectional TVS configurations |
| Cathode | Protected line connection / surge sink node | Connected to signal/power line being protected; marked with visible band for orientation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| 185 °C junction rating | Enables operation in high-ambient environments such as engine control units and motor drives without thermal derating penalties |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture-related popcorn failure risk |
| Low-profile 1.0 mm height | Reduces board-level mechanical stress and improves airflow clearance in stacked or sealed assemblies |
| Passivated anisotropic rectifier tech | Delivers consistent VBR tolerance (±5 %) and low dynamic impedance for repeatable clamping behavior |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from ISO 7637-2 load dump and ESD events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground, clamping transients before they reach sensitive input pins of transceiver ICs. Use Value: Maintains signal integrity with 14.5 V clamping at 20 A while surviving repeated 300 W surges - critical for ASIL-B compliant systems. | Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from field-wiring induced surges and contact bounce. IC Role / Device Role / Timing Role: Standoff voltage (8.55 V) ensures no conduction during nominal 24 V DC operation; clamps >30 V transients within nanoseconds. Use Value: Enables direct integration into DIN-rail mounted I/O modules with zero layout redesign due to DO-220AA's compact footprint and thermal robustness. |
| Consumer Appliance Motor Drive | Automotive Body Control Module |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Placed across motor terminals or MOSFET drain-source to absorb energy from L·di/dt spikes during PWM switching. Use Value: Withstands 40 A IFSM and 300 W PPPM, preventing gate driver latch-up and extending MOSFET lifetime in cost-sensitive white goods. | Use Scenario: Safeguarding microcontroller GPIOs and LIN transceivers in door modules, lighting controls, and seat position sensors. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppression on 12 V supply rails and communication lines, minimizing signal distortion. Use Value: AEC-Q101 qualification and 185 °C TJ max ensure compliance with automotive OEM requirements without additional thermal margining. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same DO-214AC (SMA) package; 10 V VBR min/max = 11.1 V / 12.3 V; lower PPPM = 400 W but higher VC = 16.0 V at 25 A | Higher clamping voltage increases stress on downstream ICs; less suitable for low-voltage logic protection | Select SMAJ10A only when board space allows larger SMA footprint and higher clamping is acceptable |
| TPSMA6.8A | Same family, DO-214AC package; lower VBR (6.45–7.14 V); PPPM = 250 W; VC = 10.5 V at 23.8 A | Designed for 5 V rail protection; incompatible with 12 V systems due to premature conduction at VWM = 5.8 V | Choose TPSMA6.8A exclusively for USB, MCU I/O, or 3.3/5 V logic protection - not a drop-in replacement for TPSMP10AHM3/85A |
Compared with SMAJ10A and TPSMA6.8A, the TPSMP10AHM3/85A offers superior thermal performance (185 °C vs. 150 °C), smaller DO-220AA footprint, and tighter VBR tolerance - making it preferred for space-constrained, high-temperature automotive and industrial designs where clamping precision and reliability are prioritized over raw power rating.
Availability
TPSMP10AHM3/85A is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and consumer appliance motor drives requiring stable component supply, AEC-Q101 compliance, and long-term lifecycle continuity.
Supply support for TPSMP10AHM3/85A 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The TPSMP series belongs to Vishay's high-power-density PAR® transient suppressor product line, engineered specifically for automotive-grade surge immunity in space-constrained, thermally demanding environments - targeting ECU, ADAS, and body electronics applications.
FAQ
What is the exact breakdown voltage range for TPSMP10AHM3/85A?
The TPSMP10AHM3/85A has a guaranteed breakdown voltage (VBR) range of 9.5 V minimum to 10.5 V maximum at 1.0 mA test current, per Vishay Document Number 88471. This ±5 % tolerance ensures precise overvoltage triggering for 12 V system protection without false conduction during normal operation.
Is TPSMP10AHM3/85A suitable for automotive applications?
Yes, TPSMP10AHM3/85A is AEC-Q101 qualified and rated for junction temperatures up to 185 °C, making it suitable for under-hood and cabin automotive applications including body control modules, sensor interfaces, and LIN bus protection. Its DO-220AA package meets MSL Level 1 and halogen-free requirements per automotive OEM standards.
What is the clamping voltage of TPSMP10AHM3/85A at rated surge current?
The TPSMP10AHM3/85A clamps to a maximum of 14.5 V at 20 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 and ensures protected circuits remain below safe voltage thresholds during transient events.
Does TPSMP10AHM3/85A have polarity marking, and how is it identified?
Yes, TPSMP10AHM3/85A is unidirectional and features a visible cathode band on the DO-220AA package body. The banded end is the cathode terminal, which must be connected toward the line being protected; the opposite end is the anode, typically tied to ground or reference potential in standard TVS configurations.
What packaging option does TPSMP10AHM3/85A use, and what is its reel size?
TPSMP10AHM3/85A ships in 13-inch diameter plastic tape and reel format with a base quantity of 10,000 units per reel (package code "85A"). The DO-220AA (SMP) package is optimized for high-speed pick-and-place equipment and supports standard SMT reflow profiles including lead-free 260 °C peak temperature.
TPSMP10AHM3/85A 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):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 20.7A
- 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)
TPSMP10AHM3/85A FAQ
1.How can I place an order for TPSMP10AHM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP10AHM3/85A 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 TPSMP10AHM3/85A reliable?
The price and inventory of TPSMP10AHM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP10AHM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP10AHM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP10AHM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP10AHM3/85A?
TPSMP10AHM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP10AHM3/85A 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 TPSMP10AHM3/85A?
For technical support, including TPSMP10AHM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP10AHM3/85A requirements.
6.How does Aetrix verify that TPSMP10AHM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP10AHM3/85A 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 TPSMP10AHM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP10AHM3/85A?
All TPSMP10AHM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP10AHM3/85A, 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 TPSMP10AHM3/85A part is unused and in its original packaging.
Return procedure for TPSMP10AHM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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