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Vishay General Semiconductor - Diodes Division TPSMP22AHM3_A/H
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- Part No.:
- TPSMP22AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP22AHM3_A/H.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,290
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Product details
Overview
TPSMP22AHM3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the eSMP® PAR® series, designed for high-reliability automotive and industrial surge protection. It features a 20.9 V to 23.1 V breakdown voltage (VBR), 18.8 V stand-off voltage (VWM), 400 W peak pulse power (PPPM), 13.1 A peak pulse current (IPPM), and 185 °C maximum junction temperature - enabling robust clamping on signal lines and power rails in engine control units and ADAS sensors.
For engineers reviewing the TPSMP22AHM3_A/H datasheet, TPSMP22AHM3_A/H pinout, TPSMP22AHM3_A/H application, or TPSMP22AHM3_A/H equivalent, this page delivers verified electrical specs, SMP (DO-220AA) package dimensions, AEC-Q101 qualification status, clamping performance at rated surge current, and direct alternatives with documented parameter divergence.
Technical Context
The TPSMP22AHM3_A/H uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and sub-nanosecond response time under 10/1000 µs transients. Its unidirectional polarity and cathode-band marking align with standard PCB layout conventions for reverse-biased protection circuits.
Rated for TJ = 185 °C operation and MSL Level 1 (260 °C reflow), it supports automotive under-hood applications without derating penalties up to 150 °C ambient. The 1.0 mm typical height and DO-220AA footprint enable dense placement near IC inputs while maintaining thermal dissipation via 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V - Ensures reliable turn-on above system operating voltage while avoiding false triggering during normal transients. |
| VWM | 18.8 V - Maximum continuous reverse voltage before leakage exceeds 1 µA, matching 12 V automotive supply rails with margin. |
| PPPM | 400 W - Sustains 10/1000 µs surges up to 13.1 A without failure when mounted on specified PCB copper area. |
| VC @ IPPM | 30.6 V - Clamped voltage during full-rated surge, limiting downstream IC stress to safe levels per ISO 7637-2 Pulse 1/2a/5a. |
| TJ max. | 185 °C - Enables operation in high-temperature environments such as powertrain modules without thermal shutdown. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive discrete semiconductors including HTGB, HTRB, and temperature cycling. |
| Package | SMP (DO-220AA) - 2.18 mm × 3.61 mm footprint with 1.0 mm profile, optimized for automated pick-and-place and space-constrained layouts. |
Pinout & Package
TPSMP22AHM3_A/H is housed in the SMP (DO-220AA) surface-mount package: a two-terminal, unidirectional device with cathode identified by a color band. The package has no internal leads; terminals are matte tin-plated copper clips soldered directly to PCB pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input reference node for clamping path | Connected to protected line (e.g., CAN_H, LIN, sensor output); forms low-impedance path to ground during overvoltage events. |
| Cathode | Clamp return path | Connected to system ground or low-impedance return plane; carries full surge current during transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Reduces surface leakage and improves long-term reliability under humid, high-bias conditions in automotive ECUs. |
| MSL Level 1 rating | Allows single-pass reflow at 260 °C peak without popcorn effect or interfacial delamination. |
| Low profile (1.0 mm) | Enables placement beneath connectors or near tall components without mechanical interference in compact ADAS modules. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for automotive OEMs. |
| 0.057 %/°C VBR tempco | Minimizes drift in clamping threshold across -40 °C to +125 °C ambient, critical for precision sensor interface protection. |
Applications
| Automotive Powertrain ECU Protection | Industrial Sensor Signal Line Guarding |
|---|---|
Use Scenario: Protecting microcontroller GPIOs and LIN bus transceivers from load dump and alternator ripple in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between LIN line and chassis ground to clamp transients exceeding 18.8 V. Use Value: Limits clamped voltage to 30.6 V during 13.1 A surges, preventing latch-up or oxide damage in 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding analog outputs of pressure and temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Standoff protection element on 4–20 mA current loop outputs exposed to relay switching noise and ESD. Use Value: Withstands repeated 400 W pulses without degradation, ensuring >100,000 surge cycles in harsh industrial environments. |
| ADAS Camera Module Power Rail | Consumer IoT Battery Management Input |
Use Scenario: Suppressing ISO 7637-2 Pulse 5a transients on 12 V input rails of surround-view camera ECUs mounted near motors. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail upstream of DC/DC converters and image sensors. Use Value: 185 °C junction rating allows uninterrupted operation at under-hood temperatures up to 150 °C ambient. |
Use Scenario: Protecting lithium-ion battery charger IC inputs from USB port ESD and hot-plug surges in smart home hubs. IC Role / Device Role / Timing Role: Fast-response TVS on VBUS line to divert ±8 kV contact ESD per IEC 61000-4-2 before reaching PMIC. Use Value: Sub-1 ns response time and 1.0 µA leakage at 18.8 V preserve battery standby life while meeting Class 4 ESD immunity. |
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 | Lower PPPM (400 W → 400 W same), but higher VC (35.5 V vs. 30.6 V) and larger SMA package (4.5 mm × 2.7 mm). | Less suitable for space-constrained automotive modules; requires larger pad layout and offers weaker clamping margin. | Select TPSMP22AHM3_A/H when board space is limited and tighter clamping voltage is required for 3.3 V logic interfaces. |
| TPSMA6.8A-Q | Same SMP package, but lower VBR (6.45–7.14 V) and PPPM (250 W); AEC-Q101 qualified with identical construction. | Designed for 5 V systems only; cannot protect 12 V or 24 V rails without premature conduction. | Choose TPSMP22AHM3_A/H for 12 V/24 V automotive power domains where VWM ≥ 18.8 V is mandatory. |
Compared with SMAJ22A-E3/57T and TPSMA6.8A-Q, the TPSMP22AHM3_A/H delivers superior clamping ratio (VC/VBR ≈ 1.32), smallest footprint in its power class, and guaranteed 185 °C operation - making it optimal for next-generation ADAS and electrified powertrain designs requiring both miniaturization and thermal resilience.
Availability
TPSMP22AHM3_A/H is available at Aetrix Electronics and suitable for automotive powertrain ECUs, industrial sensor interfaces, and ADAS camera modules requiring stable component supply, AEC-Q101 compliance, and high-temperature surge resilience.
Supply support for TPSMP22AHM3_A/H 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, and optoelectronics for automotive, industrial, and computing markets.
The TPSMP22AHM3_A/H belongs to Vishay's eSMP® PAR® TVS family, engineered specifically for AEC-Q101-compliant transient suppression in space- and thermally constrained automotive electronics.
FAQ
What is the exact breakdown voltage range for TPSMP22AHM3_A/H?
The TPSMP22AHM3_A/H has a guaranteed breakdown voltage (VBR) range of 20.9 V to 23.1 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent turn-on behavior across production lots and temperature extremes, supporting robust design margins in 12 V automotive systems where nominal supply may reach 16 V during cranking.
Is TPSMP22AHM3_A/H compatible with lead-free reflow processes?
Yes, TPSMP22AHM3_A/H is rated for MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C. Its matte tin-plated terminals meet J-STD-002 and JESD 22-B102 solderability standards, and the HM3 suffix confirms compliance with JESD 201 Class 2 whisker resistance - making it fully compatible with standard lead-free assembly lines.
Does TPSMP22AHM3_A/H meet automotive qualification standards?
Yes, TPSMP22AHM3_A/H is AEC-Q101 qualified and categorized as automotive grade per Vishay documentation. It passes HTGB, HTRB, temperature cycling, and mechanical shock tests required for under-hood and safety-critical applications, with full traceability and lot-level test data available upon request.
What is the maximum clamping voltage of TPSMP22AHM3_A/H at rated surge current?
The maximum clamping voltage (VC) of TPSMP22AHM3_A/H is 30.6 V at its rated peak pulse current (IPPM) of 13.1 A, tested with a 10/1000 µs waveform. This value is measured under standardized conditions (25 °C, 5.0 mm × 5.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during worst-case transients.
How does the SMP (DO-220AA) package of TPSMP22AHM3_A/H compare to SMA in size and thermal performance?
The SMP (DO-220AA) package of TPSMP22AHM3_A/H measures 2.18 mm × 3.61 mm with 1.0 mm height - 45 % smaller footprint and 50 % lower profile than standard SMA (4.5 mm × 2.7 mm × 2.2 mm). Its thermal resistance (RθJA) is optimized for PCB copper spread, delivering equivalent 400 W pulse handling in less board area while maintaining 185 °C junction capability.
TPSMP22AHM3_A/H 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/H FAQ
1.How can I place an order for TPSMP22AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP22AHM3_A/H 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/H reliable?
The price and inventory of TPSMP22AHM3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for TPSMP22AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP22AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP22AHM3_A/H?
TPSMP22AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP22AHM3_A/H 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/H?
For technical support, including TPSMP22AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP22AHM3_A/H requirements.
6.How does Aetrix verify that TPSMP22AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMP22AHM3_A/H 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/H meets industry standards.
7.What is the process for return or replacement of TPSMP22AHM3_A/H?
All TPSMP22AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP22AHM3_A/H, 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/H part is unused and in its original packaging.
Return procedure for TPSMP22AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP22AHM3_A/H Tags
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