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Vishay General Semiconductor - Diodes Division TPSMP12AHM3_A/H
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- Part No.:
- TPSMP12AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP12AHM3_A/H.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,315
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Product details
Overview
TPSMP12AHM3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMP (DO-220AA) package, designed for high-reliability automotive and industrial circuit protection. It features a 11.4 V to 12.6 V breakdown voltage (VBR), 10.2 V stand-off voltage (VWM), 300 W peak pulse power (10/1000 µs), 18.0 A peak pulse current (IPPM), and clamps to ≤16.7 V at rated surge - protecting signal lines and drive transistors in harsh environments.
For engineers reviewing the TPSMP12AHM3_A/H datasheet, TPSMP12AHM3_A/H pinout, TPSMP12AHM3_A/H application, or TPSMP12AHM3_A/H equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal derating behavior, junction temperature limits up to +185 °C, and precise mechanical dimensions for PCB layout and automated placement validation.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable clamping under repetitive surge stress. Its unidirectional polarity and low incremental surge resistance enable fast response (<1 ns) and minimal voltage overshoot during ESD or lightning-induced transients.
Rated for operation from –65 °C to +185 °C, it meets MSL Level 1 per J-STD-020 (260 °C reflow peak), supports halogen-free and RoHS-compliant assembly, and is qualified to AEC-Q101 for automotive-grade reliability in engine control units, ADAS sensors, and infotainment power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.4 V / 12.6 V - defines minimum voltage at which device enters avalanche conduction; ensures reliable triggering above system operating voltage |
| VWM | 10.2 V - maximum reverse voltage before leakage exceeds 1 μA; sets safe operating margin below breakdown |
| IPPM | 18.0 A - peak surge current survivable under 10/1000 µs waveform; determines robustness against IEC 61000-4-5 surges |
| VC @ IPPM | ≤16.7 V - clamped voltage during full-rated surge; directly limits stress on downstream ICs like microcontrollers or CAN transceivers |
| TJ max. | +185 °C - enables use in under-hood automotive locations without thermal derating penalties |
| PPPM | 300 W - peak pulse power handling capacity; correlates with energy absorption capability (E = P × t) |
| Package | SMP (DO-220AA) - ultra-low-profile surface-mount package (1.0 mm typical height); compatible with high-speed pick-and-place and dense PCB layouts |
Pinout & Package
TPSMP12AHM3_A/H is a two-terminal unidirectional TVS diode in the SMP (DO-220AA) package. The cathode is marked by a color band; anode and cathode terminals are located at opposite ends of the molded body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal in forward bias; connected to protected line or ground reference | Completes current path during surge events; must be routed with low-inductance trace to minimize clamping voltage overshoot |
| Cathode | Negative terminal; marked by color band; connects to higher-potential rail or signal line | Defines polarity-sensitive protection direction; reverse-biased during normal operation; avalanches when VAK ≥ VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including powertrain and chassis systems; includes HTOL, TC, UHAST, and ESD testing per stress requirements |
| Junction passivation | Stabilizes VBR over lifetime and temperature; reduces parameter drift in humid or high-TJ conditions |
| MSL Level 1 rating | Enables single-pass reflow at 260 °C peak without popcorn or delamination risk; eliminates pre-bake requirement |
| Low profile (1.0 mm height) | Reduces board-level mechanical interference in stacked modules; improves airflow in thermally constrained enclosures |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC JS709C; supports green manufacturing and end-of-life recycling compliance |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine bay modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and MCU input to limit transient overvoltage before signal conditioning stage. Use Value: Clamps to ≤16.7 V at 18 A surge, preserving ADC input integrity and preventing latch-up in 3.3 V or 5 V microcontrollers. | Use Scenario: Safeguarding digital input channels on programmable logic controllers subjected to inductive switching noise from solenoids and contactors. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V DC input lines to shunt fast-rising transients (>1 kV/μs) before optocoupler isolation stage. Use Value: Withstands 300 W peak pulse power and operates reliably up to +185 °C ambient, ensuring uptime in factory-floor control cabinets. |
| Automotive Infotainment Power Rail | Consumer USB Port ESD Protection |
Use Scenario: Secondary overvoltage protection on 12 V supply rail feeding head unit power management ICs after primary fuse and filter stage. IC Role / Device Role / Timing Role: Fast-response TVS suppressing slow-energy load dump transients (ISO 16750-2) and coupled RF noise from AM/FM antennas. Use Value: 10.2 V VWM provides margin above nominal 12 V system while enabling early clamping before downstream LDOs reach dropout. | Use Scenario: Board-level ESD protection for USB 2.0 data lines and VBUS in portable media players or docking stations. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to connector to divert ±8 kV contact discharge per IEC 61000-4-2 before signal integrity degrades. Use Value: Junction capacitance <100 pF (typ.) at 0 V bias minimizes signal distortion on 480 Mbps differential pairs without requiring impedance tuning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | Higher VC (20.9 V), lower PPPM (400 W only for VBR ≥13 V; SMAJ12A rated at 200 W), DO-214AC package (2.79 mm height) | Less suitable for space-constrained automotive modules; requires larger pad area and higher mounting clearance | Select SMAJ12A only if cost sensitivity outweighs profile and thermal performance requirements |
| TPSMA6.8A | Same family but lower VBR (6.45–7.14 V); identical SMP package and AEC-Q101 qualification | Applicable where lower clamping voltage is needed (e.g., 3.3 V logic rails), not for 12 V systems | TPSMA6.8A is not a functional substitute for TPSMP12AHM3_A/H due to mismatched VBR and VWM; verify system voltage margins before substitution |
Compared with SMAJ12A and TPSMA6.8A, TPSMP12AHM3_A/H uniquely balances 300 W surge capability, 1.0 mm profile, and AEC-Q101 qualification in a single device - making it optimal for next-generation automotive ECUs where board space, thermal resilience, and qualification rigor are non-negotiable.
Availability
TPSMP12AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and consumer power interface designs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for TPSMP12AHM3_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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The TPSMP series belongs to Vishay's eSMP® high-power-density TVS platform, engineered specifically for automotive-grade transient suppression where compact size, high surge tolerance, and extended temperature operation are critical design constraints.
FAQ
What is the breakdown voltage range for TPSMP12AHM3_A/H?
The TPSMP12AHM3_A/H has a guaranteed breakdown voltage (VBR) range of 11.4 V to 12.6 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent avalanche initiation across production lots and temperature extremes, supporting robust design margining for 12 V automotive systems.
Is TPSMP12AHM3_A/H qualified for automotive use?
Yes, TPSMP12AHM3_A/H is AEC-Q101 qualified and rated for operation from –65 °C to +185 °C. It undergoes stress testing including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST), confirming suitability for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage of TPSMP12AHM3_A/H at its rated surge current?
The maximum clamping voltage (VC) of TPSMP12AHM3_A/H is 16.7 V at 18.0 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured at TA = 25 °C on a standard FR-4 PCB with 5.0 mm × 5.0 mm copper pads per terminal, defining worst-case voltage seen by protected circuitry.
Does TPSMP12AHM3_A/H meet lead-free and RoHS requirements?
Yes, TPSMP12AHM3_A/H carries the HM3 suffix indicating halogen-free molding compound, RoHS compliance per Directive 2011/65/EU, and qualification to JESD201 Class 2 whisker resistance. Its matte tin-plated leads are solderable per J-STD-002 and JESD22-B102 standards.
What package type does TPSMP12AHM3_A/H use, and what are its key mechanical features?
TPSMP12AHM3_A/H uses the SMP (DO-220AA) package - a surface-mount, ultra-low-profile case measuring 3.61 mm × 2.18 mm × 1.0 mm (L × W × H). Key features include a cathode band marking, UL 94 V-0 compliant molding compound, and compatibility with MSL Level 1 reflow profiles (260 °C peak).
TPSMP12AHM3_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):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 18A
- 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)
TPSMP12AHM3_A/H FAQ
1.How can I place an order for TPSMP12AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP12AHM3_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 TPSMP12AHM3_A/H reliable?
The price and inventory of TPSMP12AHM3_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 TPSMP12AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMP12AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP12AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP12AHM3_A/H?
TPSMP12AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP12AHM3_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 TPSMP12AHM3_A/H?
For technical support, including TPSMP12AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP12AHM3_A/H requirements.
6.How does Aetrix verify that TPSMP12AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMP12AHM3_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 TPSMP12AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMP12AHM3_A/H?
All TPSMP12AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP12AHM3_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 TPSMP12AHM3_A/H part is unused and in its original packaging.
Return procedure for TPSMP12AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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