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Vishay General Semiconductor - Diodes Division TPSMP22AHM3_A/I
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- Part No.:
- TPSMP22AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP22AHM3_A/I.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,742
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Product details
Overview
TPSMP22AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the PAR® family, designed for high-reliability automotive and industrial overvoltage protection. It features a 20.9–23.1 V breakdown voltage (VBR), 30.6 V clamping voltage (VC) at 13.1 A peak pulse current, 400 W peak pulse power (10/1000 µs), 185 °C maximum junction temperature, and SMP (DO-220AA) package with 1.0 mm typical height - deployed to protect sensor signal lines and drive transistors against ESD and surge events.
For engineers reviewing the TPSMP22AHM3_A/I datasheet, TPSMP22AHM3_A/I pinout, TPSMP22AHM3_A/I application, or TPSMP22AHM3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, clamping performance under IPPM, thermal derating behavior, and direct alternative part comparisons for automotive-grade circuit protection design.
Technical Context
The TPSMP22AHM3_A/I operates as a unidirectional avalanche diode, leveraging passivated anisotropic rectifier technology to achieve fast response time (<1 ns) and low incremental surge resistance. Its junction passivation enables stable operation up to TJ = 185 °C and supports MSL Level 1 reflow compatibility (260 °C peak).
Designed for surface-mount placement on FR-4 PCBs with 5.0 mm × 5.0 mm copper pads per terminal, it delivers 400 W peak pulse power (10/1000 µs waveform) at VBR = 20.9–23.1 V, with clamping voltage tightly specified at 30.6 V @ 13.1 A - meeting ANSI/IEEE C62.35 surge standards for automotive electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V - defines minimum voltage at which avalanche conduction begins reliably under 1 mA test current |
| VWM | 18.8 V - maximum reverse working voltage before leakage exceeds 1 μA; sets safe operating margin below VBR |
| VC @ IPPM | 30.6 V @ 13.1 A - clamped voltage during 10/1000 µs surge; determines protected IC's maximum stress level |
| PPPM | 400 W - peak pulse power handling capacity; defines survivability under standardized lightning/surge transients |
| TJ max. | 185 °C - enables use in under-hood automotive environments without thermal derating penalties |
| Package | SMP (DO-220AA) - ultra-low-profile (1.0 mm height), halogen-free, RoHS-compliant, AEC-Q101 qualified package |
| Polarity | Unidirectional - cathode marked by color band; suitable only for DC-biased or single-polarity signal line protection |
Pinout & Package
SMP (DO-220AA) is a two-terminal surface-mount package with cathode identified by a visible color band. Dimensions: 3.61 mm × 2.18 mm × 1.0 mm (L × W × H), with 2.54 mm center-to-center lead spacing and matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return plane; carries full surge current during clamping |
| Cathode | Protected line connection / Avalanche node | Connected to signal/power line being protected; voltage referenced to anode during transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock testing |
| 185 °C junction rating | Enables uninterrupted operation in high-temperature engine bay or powertrain control modules |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and single-reflow processing at 260 °C peak without popcorn or delamination risk |
| Low profile (1.0 mm height) | Reduces board stack height and improves airflow in dense automotive ECUs and ADAS modules |
| Passivated anisotropic rectifier tech | Delivers consistent VBR tolerance and low leakage (<1 μA @ VWM) across temperature and lifetime |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control units against ISO 7637-2 pulses and ESD. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients before reaching sensitive input stages of transceivers or ADC front-ends. Use Value: Limits voltage excursion to ≤30.6 V during 13.1 A surge, preserving signal integrity and preventing latch-up in downstream ASICs. | Use Scenario: Safeguarding gate driver inputs and feedback sensing nodes in variable-frequency drives exposed to IGBT switching noise and load dump events. IC Role / Device Role / Timing Role: Fast-response TVS connected across isolated signal paths to absorb coupled surges from high-di/dt power stages. Use Value: Withstands 400 W peak pulse energy and maintains <1 μA leakage at 18.8 V, ensuring no DC loading on precision feedback circuits. |
| Consumer Power Adapter Interfaces | Automotive Body Control Modules |
Use Scenario: Shielding USB-C PD communication lines and auxiliary power rails in wall adapters from AC line transients and hot-plug ESD. IC Role / Device Role / Timing Role: Bidirectional-capable system uses unidirectional TPSMP22AHM3_A/I on DC-biased rails where polarity is fixed and clamping symmetry is unnecessary. Use Value: 30.6 V clamping ensures compliance with IEC 61000-4-5 Level 3 (1 kV/2 kV) while maintaining minimal capacitance impact on high-speed signaling. | Use Scenario: Protecting LIN bus slave nodes (e.g., door modules, seat controllers) from battery reverse polarity and jump-start surges in 12 V systems. IC Role / Device Role / Timing Role: Anode-to-ground configuration absorbs negative-going transients and positive surges via avalanche conduction to cathode. Use Value: AEC-Q101 qualification and 185 °C rating ensure functional safety compliance in long-lifetime body electronics without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-E3/57T (Vishay) | Same VBR range (20.9–23.1 V) but lower PPPM (400 W → 400 W), larger SMA package (2.5 mm height), non-AEC-Q101 rated | Not qualified for automotive under-hood use; suitable for industrial/commercial PCBs with less stringent reliability requirements | Select when cost or legacy footprint compatibility outweighs AEC-Q101 need and board height allows SMA |
| 1.5SMC22A (ON Semiconductor) | Identical VBR/VC specs but DO-214AB package (3.9 mm height), 400 W rating, AEC-Q101 not claimed in datasheet | Lacks formal automotive qualification; higher profile limits use in space-constrained modules like ADAS cameras | Choose for general-purpose surge protection where footprint and height are unconstrained and automotive certification is not required |
Compared with SMAJ22A-E3/57T and 1.5SMC22A, the TPSMP22AHM3_A/I provides identical clamping performance in a 1.0 mm low-profile, AEC-Q101-qualified SMP package - enabling automotive deployment where thermal robustness, board space, and qualification compliance are jointly critical.
Availability
TPSMP22AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor drive interfaces, and consumer power adapter surge mitigation requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPSMP22AHM3_A/I 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, efficiency, and application-specific optimization.
The TPSMP series belongs to Vishay's PAR® (Power Application Rated) transient suppressor product line, engineered specifically for high-power-density, high-temperature automotive and industrial overvoltage protection with AEC-Q101 compliance and MSL Level 1 process compatibility.
FAQ
What is the clamping voltage of the TPSMP22AHM3_A/I at its rated peak pulse current?
The TPSMP22AHM3_A/I has a maximum clamping voltage (VC) of 30.6 V when subjected to its rated peak pulse current (IPPM) of 13.1 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable voltage limiting during surge events. The TPSMP22AHM3_A/I maintains this clamping performance across its operational temperature range and is validated for automotive use cases where downstream ICs require strict overvoltage boundaries.
Is the TPSMP22AHM3_A/I qualified for automotive applications?
Yes, the TPSMP22AHM3_A/I is AEC-Q101 qualified and rated for junction temperatures up to 185 °C, making it suitable for under-hood and powertrain applications. It meets MSL Level 1 per J-STD-020 and is halogen-free, RoHS-compliant, and qualified per JESD201 Class 2 whisker testing. The TPSMP22AHM3_A/I is explicitly listed in Vishay's automotive-grade product documentation and used in certified ECUs and sensor modules.
What does the "HM3_A/I" suffix indicate in TPSMP22AHM3_A/I?
The "HM3" denotes the halogen-free, RoHS-compliant, AEC-Q101-qualified SMP (DO-220AA) package variant; "A" is the revision code; and "I" specifies the packaging format - 13-inch diameter plastic tape and reel with 10,000 units per reel. This differs from "H"-suffixed versions, which use 7-inch reels with 3,000 units. The TPSMP22AHM3_A/I thus ensures traceable, high-volume automotive logistics compatibility.
How does the TPSMP22AHM3_A/I compare to bidirectional TVS diodes in signal line protection?
The TPSMP22AHM3_A/I is unidirectional and intended for DC-biased lines where polarity is fixed - such as power rails or grounded-signal interfaces. Unlike bidirectional devices, it offers lower leakage (<1 μA @ 18.8 V) and tighter VBR tolerance but cannot suppress negative surges on AC-coupled or floating lines. For applications requiring symmetric clamping, a separate bidirectional device would be needed; the TPSMP22AHM3_A/I excels where unidirectional protection suffices and leakage or height constraints dominate.
What is the thermal derating behavior of the TPSMP22AHM3_A/I above 25 °C ambient?
The TPSMP22AHM3_A/I follows a linear derating curve for steady-state power dissipation (PD = 2.5 W at TA = 75 °C on infinite heatsink), with full derating to zero at 185 °C junction temperature. Pulse power (PPPM) also derates above 25 °C per Figure 2 in the datasheet - e.g., at 125 °C initial junction temperature, PPPM drops to ~60 % of its 25 °C value. This behavior is critical for thermal design in sealed automotive enclosures where ambient may exceed 100 °C.
TPSMP22AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 13.1A
- Power - Peak Pulse:
- 400W
- 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)
TPSMP22AHM3_A/I FAQ
1.How can I place an order for TPSMP22AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP22AHM3_A/I 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 TPSMP22AHM3_A/I reliable?
The price and inventory of TPSMP22AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP22AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMP22AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP22AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP22AHM3_A/I?
TPSMP22AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP22AHM3_A/I 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 TPSMP22AHM3_A/I?
For technical support, including TPSMP22AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP22AHM3_A/I requirements.
6.How does Aetrix verify that TPSMP22AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMP22AHM3_A/I 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 TPSMP22AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMP22AHM3_A/I?
All TPSMP22AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP22AHM3_A/I, 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 TPSMP22AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMP22AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP22AHM3_A/I Tags
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