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Vishay General Semiconductor - Diodes Division TPSMP12AHM3_A/I
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- Part No.:
- TPSMP12AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP12AHM3_A/I.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,136
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Product details
Overview
TPSMP12AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the eSMP® Series, designed for high-reliability automotive and industrial overvoltage protection. It features a 11.4 V to 12.6 V breakdown voltage (VBR), 10.2 V stand-off voltage (VWM), 18.0 A peak pulse current (IPPM), 16.7 V clamping voltage (VC) at IPPM, and AEC-Q101 qualification for under-hood electronics.
For engineers reviewing the TPSMP12AHM3_A/I datasheet, TPSMP12AHM3_A/I pinout, TPSMP12AHM3_A/I application, or TPSMP12AHM3_A/I equivalent, this page delivers verified electrical parameters, SMP (DO-220AA) package dimensions, automotive-grade thermal performance (TJ = 185 °C), and real-world protection use cases - all aligned with Vishay Document #88471 Rev. 25-Apr-2022.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD and lightning-induced transients per IEC 61000-4-2/4-5. Its unidirectional polarity and 1.0 mm profile support compact PCB layouts in space-constrained automotive modules.
The device operates across -65 °C to +185 °C junction temperature, meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and delivers 300 W peak pulse power (10/1000 µs waveform) with 1.0 µA max reverse leakage at VWM and 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.4 V / 12.6 V - Ensures reliable triggering above system operating voltage while avoiding false clamping during normal operation |
| VWM | 10.2 V - Maximum continuous reverse voltage before significant leakage; matches 12 V automotive supply rails with margin |
| VC @ IPPM | 16.7 V - Clamped voltage during 18.0 A transient; protects downstream ICs rated ≤20 V absolute maximum |
| PPPM | 300 W - Sustains high-energy surges typical of ISO 7637-2 Pulse 1/2a/5a in vehicle power networks |
| TJ max | +185 °C - Enables placement near heat sources (e.g., engine control units) without derating |
| Package | SMP (DO-220AA) - 3.61 mm × 2.18 mm footprint with 1.0 mm height; compatible with automated SMT placement |
| AEC-Q101 | Qualified - Validated for automotive applications including powertrain, body electronics, and ADAS sensors |
Pinout & Package
SMP (DO-220AA) surface-mount package with cathode indicated by a color band. Matte tin-plated terminals meet J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line (e.g., CAN_H or LIN bus); conducts only during fault conditions |
| Cathode | Current exit point during reverse-biased clamping | Connected to ground or lower-potential rail; provides low-impedance path for surge current |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Reduces surface leakage and improves long-term reliability in humid/high-voltage environments |
| Low profile (1.0 mm height) | Enables integration into ultra-thin modules such as camera ECUs and radar sensor housings |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns or baking requirements |
| Halogen-free & RoHS-compliant | Meets automotive environmental compliance standards (e.g., ELV, IMDS) without compromising surge robustness |
| Unidirectional configuration | Optimized for DC-biased lines like power supplies and serial buses where reverse conduction is not required |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V power inputs in engine control units against load dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: TVS diode placed between battery rail and DC-DC input to clamp surges before they reach regulator ICs. Use Value: Withstands 300 W pulses and 18.0 A peak current while limiting clamped voltage to 16.7 V - within safe operating range of most automotive-grade regulators. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD events on factory floor wiring harnesses. IC Role / Device Role / Timing Role: Unidirectional TVS connected across signal and ground to shunt fast transients before reaching ADC front-end or op-amp buffers. Use Value: 1.0 µA leakage at 10.2 V ensures minimal impact on sensor accuracy; 16.7 V clamping prevents ADC saturation during ±8 kV contact ESD. |
| Automotive CAN Bus Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding CAN transceivers in body control modules from coupled transients induced by nearby relay switching or alternator noise. IC Role / Device Role / Timing Role: TVS placed on CAN_H and CAN_L lines to ground, leveraging low capacitance and fast response to preserve signal integrity. Use Value: 16.7 V clamping prevents transceiver latch-up; AEC-Q101 qualification ensures stable operation across full automotive temperature range. | Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: TVS installed across motor terminals to absorb energy from back-EMF spikes during PWM commutation. Use Value: 300 W peak power rating handles repetitive 10/1000 µs surges; 185 °C max junction temperature supports sealed motor enclosure environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | Higher VC (20.1 V), lower PPPM (400 W but derated faster), SMA package (2.5 mm height) | Less suitable for tight-height automotive modules; higher clamping may stress downstream 16 V-rated ICs | Select TPSMP12AHM3_A/I when board height <1.1 mm is required and clamping voltage must stay ≤17 V |
| TPSMA6.8A | Lower VBR (6.45–7.14 V), same package, 250 W PPPM | Designed for 5 V logic lines - not appropriate for 12 V power rail protection due to premature conduction | Choose TPSMP12AHM3_A/I for 12 V systems needing precise 11.4–12.6 V breakdown and automotive qualification |
Compared with SMAJ12A and TPSMA6.8A, the TPSMP12AHM3_A/I offers superior height efficiency (1.0 mm vs. 2.5 mm), tighter VBR tolerance (±5%), and guaranteed AEC-Q101 qualification - making it the preferred choice for next-generation automotive ECUs where space, precision, and qualification rigor are critical.
Availability
TPSMP12AHM3_A/I is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, and CAN bus protection requiring stable component supply and full traceability.
Supply support for TPSMP12AHM3_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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The eSMP® Series, including TPSMP12AHM3_A/I, was engineered specifically for automotive-grade transient suppression - delivering high power density, AEC-Q101 compliance, and ultra-low profile in DO-220AA packaging.
FAQ
What is the breakdown voltage range of the TPSMP12AHM3_A/I?
The TPSMP12AHM3_A/I has a specified breakdown voltage (VBR) range of 11.4 V to 12.6 V at 1.0 mA test current, per Vishay Document #88471. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable protection of 12 V automotive systems without false triggering during normal operation. The TPSMP12AHM3_A/I maintains this specification across its full operating temperature range.
Is the TPSMP12AHM3_A/I qualified for automotive applications?
Yes, the TPSMP12AHM3_A/I is AEC-Q101 qualified and explicitly designated as automotive grade in Vishay's documentation. It meets stringent reliability requirements including high-temperature operation up to +185 °C junction temperature, MSL Level 1 handling, and halogen-free/RoHS compliance. These qualifications make the TPSMP12AHM3_A/I suitable for use in engine control units, body electronics, and ADAS modules.
What package type does the TPSMP12AHM3_A/I use?
The TPSMP12AHM3_A/I uses the SMP (DO-220AA) package - a compact surface-mount outline measuring 3.61 mm × 2.18 mm with a maximum height of 1.0 mm. This package features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 whisker testing, and is supplied in 13" tape-and-reel format (I suffix) with 10,000 units per reel.
How does the clamping voltage of the TPSMP12AHM3_A/I compare to its stand-off voltage?
The TPSMP12AHM3_A/I has a stand-off voltage (VWM) of 10.2 V and a maximum clamping voltage (VC) of 16.7 V at 18.0 A peak pulse current. This 6.5 V differential ensures robust protection margin: the device remains non-conductive during normal 12 V operation yet rapidly clamps transients to a safe level below the absolute maximum ratings of common automotive ICs.
Can the TPSMP12AHM3_A/I be used in bidirectional configurations?
No, the TPSMP12AHM3_A/I is a unidirectional TVS diode, as confirmed in Vishay's datasheet features and electrical characteristics table. It is intended for DC-biased lines such as power rails and single-ended signal paths. For bidirectional protection (e.g., AC lines or data buses requiring symmetrical clamping), a dedicated bidirectional variant like TPSMP12CA must be selected instead of the TPSMP12AHM3_A/I.
TPSMP12AHM3_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):
- 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/I FAQ
1.How can I place an order for TPSMP12AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP12AHM3_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 TPSMP12AHM3_A/I reliable?
The price and inventory of TPSMP12AHM3_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 TPSMP12AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMP12AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP12AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP12AHM3_A/I?
TPSMP12AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP12AHM3_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 TPSMP12AHM3_A/I?
For technical support, including TPSMP12AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP12AHM3_A/I requirements.
6.How does Aetrix verify that TPSMP12AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMP12AHM3_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 TPSMP12AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMP12AHM3_A/I?
All TPSMP12AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP12AHM3_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 TPSMP12AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMP12AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP12AHM3_A/I Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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