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Vishay General Semiconductor - Diodes Division TPSMP9.1AHM3/85A
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- Part No.:
- TPSMP9.1AHM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP9.1AHM3/85A.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,970
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Product details
Overview
TPSMP9.1AHM3/85A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability overvoltage protection of signal lines and power rails. It features 9.1 V nominal breakdown voltage (VBR = 8.65–9.55 V), 22.4 V clamping voltage at 50 A peak pulse current (IPPM), and 300 W peak pulse power rating with 10/1000 µs waveform - optimized for automotive and industrial sensor interface protection.
For engineers reviewing the TPSMP9.1AHM3/85A datasheet, TPSMP9.1AHM3/85A pinout, TPSMP9.1AHM3/85A application, or TPSMP9.1AHM3/85A equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction temperature rating, low-profile 1.0 mm height, MSL Level 1 reflow compatibility, and ±5 % VBR tolerance - critical for robust ESD/surge immunity in space-constrained PCB layouts.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver fast response time (<1 ns), low incremental surge resistance, and stable clamping performance under repetitive transients. Its unidirectional polarity and cathode-band marking align with standard PCB layout conventions for reverse-biased protection circuits.
Designed for surface-mount automated placement, the device operates across -65 °C to +185 °C junction temperature range and meets JESD201 Class 2 whisker resistance. The DO-220AA package supports high thermal dissipation via 5.0 mm × 5.0 mm copper pads per terminal, enabling reliable 2.5 W steady-state power handling at 75 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.65 V / 9.55 V - ensures precise turn-on threshold within ±5 % tolerance for predictable clamping onset |
| VWM | 7.78 V - maximum continuous reverse operating voltage before leakage exceeds 10 μA |
| VC @ IPPM | 22.4 V at 50 A - limits protected circuit voltage during 10/1000 µs surge, minimizing stress on downstream ICs |
| PPPM | 300 W - peak pulse power capability sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 surges |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Package | DO-220AA (SMP) - 1.0 mm typical height, halogen-free, RoHS-compliant, AEC-Q101 qualified |
Pinout & Package
DO-220AA (SMP) package: ultra-low-profile surface-mount case with matte tin-plated leads, cathode indicated by color band. Designed for high-density PCB layouts and compatible with standard reflow profiles up to 260 °C peak (MSL Level 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to protected line's lower-potential side (e.g., GND or return path) in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping node | Connected to protected line (e.g., signal or supply rail); conducts only during overvoltage events above VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| 185 °C junction rating | Enables sustained operation in high-ambient environments without derating in engine control units or motor drives |
| 1.0 mm profile | Reduces board real estate and improves mechanical stability in vibration-prone applications like ADAS sensors |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, enhancing protection margin for 3.3 V/5 V logic interfaces |
| J-STD-020 MSL Level 1 | Allows unlimited floor life and single-reflow processing without baking, simplifying SMT manufacturing flow |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control modules against load dump and ESD. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients while preserving DC bias integrity. Use Value: 22.4 V clamping voltage ensures protected transceiver remains below absolute maximum ratings during 100 V/500 ms load dump events. | Use Scenario: Shielding digital input channels of programmable logic controllers from field-induced surges in factory automation systems. IC Role / Device Role / Timing Role: Standoff protection device mounted at connector entry point to divert surge energy before reaching isolation barriers or microcontrollers. Use Value: 300 W peak pulse power rating sustains repeated 1 kV/500 A surges per IEC 61000-4-5, extending system uptime. |
| Consumer Power Adapter Input | Automotive Infotainment Display Interface |
Use Scenario: Safeguarding AC-DC adapter primary-side control ICs and MOSFET gates from lightning-induced surges on mains input. IC Role / Device Role / Timing Role: High-energy TVS placed across bridge rectifier output to absorb differential-mode transients before bulk capacitor. Use Value: 185 °C junction rating allows direct mounting near heat-generating transformers without thermal derating. | Use Scenario: Protecting MIPI DSI or LVDS video data lines connecting head unit to TFT display against ESD in vehicle cabin environments. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp (CJ < 100 pF at VWM) placed inline to preserve signal integrity at >100 MHz frequencies. Use Value: 1.0 mm height enables co-location with fine-pitch FPC connectors without mechanical interference. |
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, 23.0 V VC @ 43.5 A; 400 W PPPM; higher profile (2.29 mm) | Less suitable for ultra-thin modules; requires larger pad area and greater board clearance | Select when higher peak power is required and board height budget allows ≥2.2 mm |
| TPSMA6.8A | DO-214AC (SMA) package; 6.8 V VBR, 14.5 V VC @ 20 A; 400 W PPPM; same AEC-Q101 qualification | Lowers clamping voltage but reduces standoff margin for 9 V rail protection | Select only if protected circuit VCC ≤ 7.5 V and tighter clamping is prioritized over VWM margin |
Compared with SMAJ9.0A and TPSMA6.8A, the TPSMP9.1AHM3/85A delivers identical AEC-Q101 reliability in a 56 % lower profile package, enabling use in next-generation compact ECUs where height constraints preclude SMA devices - while maintaining optimal VWM/VBR ratio for 9 V nominal systems.
Availability
TPSMP9.1AHM3/85A is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and consumer power adapter designs requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for TPSMP9.1AHM3/85A 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 PAR® (Protective Avalanche Rectifier) family, engineered specifically for high-power-density transient suppression in automotive and industrial environments where space, thermal performance, and qualification rigor are critical.
FAQ
What is the exact breakdown voltage range for TPSMP9.1AHM3/85A?
The TPSMP9.1AHM3/85A has a guaranteed breakdown voltage (VBR) range of 8.65 V to 9.55 V at 1.0 mA test current, reflecting its ±5 % tolerance grade. This tight VBR window ensures consistent clamping behavior across production lots and supports precise overvoltage threshold design in 9 V rail protection schemes. The value is measured per ANSI/IEEE C62.35 standards using square-wave pulses.
Is TPSMP9.1AHM3/85A suitable for automotive under-hood applications?
Yes, TPSMP9.1AHM3/85A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood automotive applications such as engine control units, transmission control modules, and battery management systems. Its DO-220AA package maintains mechanical integrity and electrical performance under thermal cycling and vibration stress per automotive qualification requirements.
What is the clamping voltage of TPSMP9.1AHM3/85A at its rated peak pulse current?
The TPSMP9.1AHM3/85A clamps to a maximum of 22.4 V at 50 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured under standardized test conditions (mounted on 5.0 mm × 5.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within safe operating area.
Does TPSMP9.1AHM3/85A require special PCB layout considerations?
Yes, optimal performance of TPSMP9.1AHM3/85A requires symmetric 5.0 mm × 5.0 mm copper pads per terminal to maximize thermal dissipation and minimize inductance. Short, wide traces must connect the cathode directly to the protected line and anode to ground, avoiding vias or routing detours that increase impedance. The device's low-profile DO-220AA package also demands precise stencil aperture design for consistent solder paste deposition.
How does the HM3/85A suffix affect TPSMP9.1AHM3/85A packaging and logistics?
The HM3/85A suffix indicates halogen-free, RoHS-compliant construction (HM3) supplied in 13-inch plastic tape-and-reel format with 10,000 units per reel (85A). This packaging supports high-speed automated placement and provides full traceability per batch. The "A" revision code confirms compliance with JESD201 Class 2 whisker resistance and LF peak reflow of 260 °C, ensuring process compatibility in modern SMT lines.
TPSMP9.1AHM3/85A 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):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 22.4A
- 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)
TPSMP9.1AHM3/85A FAQ
1.How can I place an order for TPSMP9.1AHM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP9.1AHM3/85A 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 TPSMP9.1AHM3/85A reliable?
The price and inventory of TPSMP9.1AHM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP9.1AHM3/85A is usually 5 days.
3.What payment methods are accepted for TPSMP9.1AHM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP9.1AHM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP9.1AHM3/85A?
TPSMP9.1AHM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP9.1AHM3/85A 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 TPSMP9.1AHM3/85A?
For technical support, including TPSMP9.1AHM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP9.1AHM3/85A requirements.
6.How does Aetrix verify that TPSMP9.1AHM3/85A is sourced from the original manufacturer or authorized distributors?
All TPSMP9.1AHM3/85A 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 TPSMP9.1AHM3/85A meets industry standards.
7.What is the process for return or replacement of TPSMP9.1AHM3/85A?
All TPSMP9.1AHM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP9.1AHM3/85A, 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 TPSMP9.1AHM3/85A part is unused and in its original packaging.
Return procedure for TPSMP9.1AHM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP9.1AHM3/85A Tags
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