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Vishay General Semiconductor - Diodes Division TPSMP9.1HM3/85A
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- Part No.:
- TPSMP9.1HM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP9.1HM3/85A.pdf
- Description:
- TVS DIODE 7.37VWM 13.8VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,329
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Product details
Overview
TPSMP9.1HM3/85A 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 9.1 V nominal breakdown voltage (VBR), 7.37 V stand-off voltage (VWM), 21.7 V clamping voltage at 50 A peak pulse current (VC), 300 W peak pulse power rating, and AEC-Q101 qualification for automotive use.
For engineers reviewing the TPSMP9.1HM3/85A datasheet, TPSMP9.1HM3/85A pinout, TPSMP9.1HM3/85A application, or TPSMP9.1HM3/85A equivalent, key selection criteria include unidirectional polarity, 185 °C junction temperature capability, low-profile 1.0 mm height, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on FR-4 PCBs with 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and switching noise in DC power rails and signal lines. Its unidirectional configuration provides forward conduction path while clamping reverse transients above VBR.
The device operates across -65 °C to +185 °C junction temperature range and is rated for 40 A non-repetitive forward surge current (IFSM) under 10 ms half-sine waveform. Thermal derating follows a defined curve above 25 °C ambient, maintaining 2.5 W steady-state power dissipation at 75 °C on infinite heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.19 V / 10.0 V - ensures reliable triggering above system operating voltage with ±10 % tolerance |
| VWM | 7.37 V - maximum continuous reverse voltage before leakage exceeds 10 μA, suitable for 5 V–6 V rail protection |
| VC @ IPPM = 50 A | 21.7 V - clamped voltage during 10/1000 μs surge, limiting stress on downstream ICs |
| PPPM | 300 W - peak pulse power handling capacity per 10/1000 μs waveform, validated on standard PCB pad layout |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| IR @ VWM | 10 μA - low reverse leakage preserves battery life in always-on circuits and sensor interfaces |
| Package | DO-220AA (SMP) - ultra-low profile (1.0 mm typical height), halogen-free, RoHS-compliant, AEC-Q101 qualified |
Pinout & Package
DO-220AA (SMP) surface-mount package with cathode indicated by color band; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards; meets JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to lower-potential side (e.g., GND or return path) in unidirectional configuration |
| Cathode | Clamping and reverse-blocking terminal | Connects to protected line (e.g., 5 V rail or signal trace); color band identifies this end |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR performance and low leakage across temperature and lifetime |
| AEC-Q101 qualification | Validated reliability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without preconditioning, compatible with standard SMT assembly lines |
| 1.0 mm typical height | Reduces board space and mechanical interference in slim enclosures and stacked PCB assemblies |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V supply lines feeding microcontrollers and CAN transceivers in engine control units (ECUs). IC Role / Device Role / Timing Role: Unidirectional TVS clamping load dump and ISO 7637-2 pulse 5a transients on 12 V–5 V DC-DC output rails. Use Value: Withstands 300 W surges and operates up to +185 °C, meeting stringent AEC-Q101 requirements for under-hood deployment. | Use Scenario: Safeguarding analog outputs of pressure and temperature sensors connected to PLC input modules. IC Role / Device Role / Timing Role: Fast-clamping element on 4–20 mA current loop or 0–10 V analog signal lines exposed to field wiring transients. Use Value: 21.7 V clamping voltage limits fault energy delivered to precision ADC front-ends, preserving measurement integrity. |
| Consumer USB Port ESD Protection | Computer Peripheral Power Sequencing |
Use Scenario: Secondary-level ESD protection on VBUS line of USB 2.0 Type-A ports in docking stations and monitors. IC Role / Device Role / Timing Role: Standoff at 7.37 V allows normal 5 V operation while clamping ±15 kV contact ESD per IEC 61000-4-2. Use Value: Sub-1 ns response time and 10 μA leakage ensure no impact on USB enumeration or data integrity during idle states. | Use Scenario: Overvoltage suppression on +3.3 V and +5 V rails powering FPGA configuration memory and PCIe slot controllers. IC Role / Device Role / Timing Role: Transient shunt during hot-swap events and power sequencing glitches in server backplanes and add-in cards. Use Value: 300 W peak power rating and DO-220AA thermal performance support repeated surge events without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | DO-214AC (SMA) package; 9.0 V VBR; 200 W PPPM; same unidirectional polarity and AEC-Q101 qualification | Higher profile (2.29 mm vs. 1.0 mm); less suitable for space-constrained automotive modules | Select when legacy SMA footprint compatibility is required and height budget allows ≥2.2 mm |
| TPSMA6.8A | DO-214AC (SMA) package; 6.8 V VBR; 400 W PPPM; same Vishay PAR® platform and AEC-Q101 rating | Lower VBR and higher PPPM, but incompatible with 7.37 V VWM requirement for 5 V systems | Select only for 3.3 V rail protection where tighter clamping margin is needed and 400 W surge headroom is critical |
Compared with SMAJ9.0A and TPSMA6.8A, the TPSMP9.1HM3/85A offers superior height efficiency (1.0 mm), optimized VWM/VBR ratio for 5 V systems, and identical AEC-Q101 reliability-making it the preferred choice for next-generation compact automotive and industrial designs requiring DO-220AA footprint.
Availability
TPSMP9.1HM3/85A is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, consumer USB peripherals, and computer peripheral power sequencing requiring stable component supply and full AEC-Q101 compliance.
Supply support for TPSMP9.1HM3/85A 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power density, and automotive-grade qualification.
The TPSMP9.1HM3/85A belongs to Vishay's eSMP® Series of high-power-density PAR® TVS diodes, engineered specifically for space-constrained, high-temperature automotive and industrial overvoltage protection where low profile and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage tolerance for TPSMP9.1HM3/85A?
The TPSMP9.1HM3/85A has a nominal breakdown voltage (VBR) of 9.1 V with a minimum of 8.19 V and maximum of 10.0 V at 1.0 mA test current, corresponding to approximately ±10 % tolerance. This range is confirmed in the Electrical Characteristics table of Vishay document 88471 and ensures robust triggering margin above 7.37 V stand-off voltage while avoiding false triggering in nominal 5 V systems.
Is TPSMP9.1HM3/85A suitable for automotive applications?
Yes, TPSMP9.1HM3/85A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and cabin automotive applications including engine control units, body electronics, and ADAS sensor modules. Its DO-220AA package meets MSL Level 1 and its construction uses halogen-free, RoHS-compliant materials per Vishay's HM3 suffix designation.
What is the clamping voltage of TPSMP9.1HM3/85A at its rated peak pulse current?
The TPSMP9.1HM3/85A exhibits a maximum clamping voltage (VC) of 21.7 V at 50 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per ANSI/IEEE C62.35 and ensures downstream 5 V ICs receive limited overvoltage stress during surge events, directly supporting IEC 61000-4-5 compliance in system-level testing.
Does TPSMP9.1HM3/85A have bidirectional capability?
No, TPSMP9.1HM3/85A is a unidirectional TVS diode, as explicitly stated in the Features section of Vishay document 88471. It conducts in forward bias like a rectifier and clamps reverse transients above VBR. For AC or dual-polarity signal line protection, a bidirectional variant such as TPSMP9.1AHM3/85A (with "A" suffix) would be required-but that part is not the TPSMP9.1HM3/85A.
What packaging format does TPSMP9.1HM3/85A ship in?
TPSMP9.1HM3/85A ships in 13-inch diameter plastic tape and reel format, with a base quantity of 10,000 units per reel, as specified in the Ordering Information section of Vishay document 88471. The "85A" suffix denotes this delivery mode and is distinct from the "84A" (7-inch reel, 3000 units) and "H"/"I" variants.
TPSMP9.1HM3/85A 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):
- 7.37V
- Voltage - Breakdown (Min):
- 8.19V
- Voltage - Clamping (Max) @ Ipp:
- 13.8V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- 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)
TPSMP9.1HM3/85A FAQ
1.How can I place an order for TPSMP9.1HM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP9.1HM3/85A 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 TPSMP9.1HM3/85A reliable?
The price and inventory of TPSMP9.1HM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP9.1HM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP9.1HM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP9.1HM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP9.1HM3/85A?
TPSMP9.1HM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP9.1HM3/85A 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 TPSMP9.1HM3/85A?
For technical support, including TPSMP9.1HM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP9.1HM3/85A requirements.
6.How does Aetrix verify that TPSMP9.1HM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP9.1HM3/85A 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 TPSMP9.1HM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP9.1HM3/85A?
All TPSMP9.1HM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP9.1HM3/85A, 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 TPSMP9.1HM3/85A part is unused and in its original packaging.
Return procedure for TPSMP9.1HM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP9.1HM3/85A Tags
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