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Vishay General Semiconductor - Diodes Division TPSMP15AHM3_A/I
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- Part No.:
- TPSMP15AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP15AHM3_A/I.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,676
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Product details
Overview
TPSMP15AHM3_A/I 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 surge protection. It features a 14.3 V to 15.8 V breakdown voltage (VBR), 12.8 V stand-off voltage (VWM), 400 W peak pulse power (PPPM), 18.9 A peak pulse current (IPPM), and clamps to ≤21.2 V at rated surge - deployed on signal lines and power rails of ECUs, sensors, and motor drivers.
For engineers reviewing the TPSMP15AHM3_A/I datasheet, TPSMP15AHM3_A/I pinout, TPSMP15AHM3_A/I application, or TPSMP15AHM3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction rating, 1.0 mm profile, low incremental surge resistance, and unidirectional polarity with cathode band marking - critical for space-constrained, high-temperature automotive PCB layouts.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve fast response time (<1 ns) and excellent clamping performance under 10/1000 μs surge waveforms. Its junction passivation enables stable operation up to TJ = 185 °C, supporting under-hood automotive environments without derating penalties.
The device operates exclusively in unidirectional mode with a defined cathode terminal, requiring correct orientation during placement. Its low-profile SMP (DO-220AA) package supports automated SMT assembly and meets MSL level 1 (260 °C reflow peak), JESD 201 Class 2 whisker resistance, and UL 94 V-0 flammability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V - ensures reliable triggering above system operating voltage while avoiding false trips |
| VWM | 12.8 V - maximum continuous reverse voltage before leakage exceeds 1 μA at 25 °C |
| PPPM | 400 W - peak surge power handling capability per 10/1000 μs waveform on standard PCB pads |
| IPPM | 18.9 A - maximum non-repetitive surge current the device can clamp without failure |
| VC @ IPPM | ≤21.2 V - clamped voltage during full-rated surge, limiting stress on downstream ICs |
| TJ max. | 185 °C - enables operation in high-ambient under-hood locations without thermal derating |
| Package | SMP (DO-220AA) - 2.18 mm × 3.61 mm footprint, 1.0 mm typical height, halogen-free, RoHS-compliant |
Pinout & Package
The TPSMP15AHM3_A/I is a two-terminal unidirectional TVS diode in the SMP (DO-220AA) surface-mount package. Polarity is marked by a cathode band on the case; the terminal adjacent to the band is the cathode, and the opposite end is the anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Surge current sink node | Connected to protected line; conducts surge current to ground when VLINE > VBR |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Junction passivation | Stable VBR and low leakage over lifetime, even at 150 °C operating junction temperature |
| MSL Level 1 | Compatible with standard 260 °C lead-free reflow profiles without moisture sensitivity concerns |
| Low profile (1.0 mm height) | Enables use in ultra-thin modules such as ADAS camera housings and compact ECU enclosures |
| Halogen-free & RoHS | Meets automotive environmental compliance requirements and supports green manufacturing |
Applications
| Automotive Body Control Module (BCM) | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and inductive switching transients in door modules and lighting controllers. IC Role / Device Role: Unidirectional TVS placed between LIN line and ground to clamp surges up to ±100 V without disrupting 12 V DC bias. Use Value: Prevents latch-up or permanent damage to 5 V tolerant transceivers while maintaining signal integrity due to low capacitance and sub-ns response. | Use Scenario: Safeguarding encoder feedback lines and gate driver inputs against EMI-induced spikes in variable-frequency drives. IC Role / Device Role: Standoff protection on differential quadrature signals (A/B/Z) routed across noisy motor control PCBs. Use Value: Limits transient overshoot to ≤21.2 V, preserving timing accuracy and preventing false edge detection in high-speed position sensing. |
| Automotive Camera Power Rail | Consumer IoT Sensor Node |
Use Scenario: Suppressing ISO 7637-2 Pulse 5a (load dump) on 12 V input rail of rear-view camera modules mounted near engine compartments. IC Role / Device Role: Primary front-end TVS on main power input, upstream of DC/DC converter and image sensor ASIC. Use Value: Withstands 400 W surges at 185 °C ambient, enabling direct mounting on compact camera PCBs without heatsinking. | Use Scenario: Shielding I²C and UART lines connecting MEMS accelerometers and MCUs in battery-powered smart home devices. IC Role / Device Role: Low-capacitance unidirectional clamp on bidirectional data lines, referenced to local ground. Use Value: Delivers <10 pF junction capacitance at 0 V bias, minimizing signal rise-time degradation on 400 kHz I²C buses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Higher VC (24.4 V), lower PPPM (400 W same but derates faster above 25 °C), SMA package (2.5 mm height) | Less suitable for space-constrained automotive modules; requires larger pad layout and higher board clearance | Select TPSMP15AHM3_A/I where height ≤1.0 mm and AEC-Q101 compliance are mandatory |
| TPSMA6.8A | Lower VBR (6.45–7.14 V), same package family but not AEC-Q101 qualified; 200 W PPPM | Intended for consumer-grade applications only; lacks automotive qualification and high-temp stability | Choose TPSMP15AHM3_A/I for automotive power-line protection where 12.8 V VWM and 185 °C operation are required |
Compared with SMAJ15A and TPSMA6.8A, the TPSMP15AHM3_A/I delivers superior thermal robustness (185 °C vs. 150 °C), tighter VBR tolerance, and guaranteed AEC-Q101 qualification - making it the preferred choice for automotive signal and power rail protection where reliability and miniaturization intersect.
Availability
TPSMP15AHM3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drive interfaces, and consumer IoT sensor nodes requiring stable component supply across long production lifecycles.
Supply support for TPSMP15AHM3_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, rectifiers, MOSFETs, and protection devices with emphasis on automotive, industrial, and computing applications.
The TPSMP series belongs to Vishay's high-power-density PAR® TVS platform, engineered specifically for AEC-Q101-compliant, high-temperature transient suppression in space-constrained automotive and industrial systems.
FAQ
What is the breakdown voltage range for TPSMP15AHM3_A/I?
The TPSMP15AHM3_A/I has a specified breakdown voltage (VBR) range of 14.3 V to 15.8 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent turn-on behavior across production lots while accommodating thermal drift up to 185 °C junction temperature - critical for stable protection in automotive power domains where nominal 12 V systems experience load dump transients.
Is TPSMP15AHM3_A/I suitable for automotive applications?
Yes, the TPSMP15AHM3_A/I is AEC-Q101 qualified and rated for operation up to 185 °C junction temperature, making it suitable for under-hood and body electronics applications. Its SMP (DO-220AA) package meets MSL Level 1, JESD 201 Class 2 whisker resistance, and halogen-free/RoHS requirements - all verified per Vishay's qualification report for the TPSMP family. The TPSMP15AHM3_A/I is explicitly listed in Vishay's automotive-grade product matrix.
What is the clamping voltage of TPSMP15AHM3_A/I at its rated surge current?
The TPSMP15AHM3_A/I clamps to a maximum of 21.2 V at its rated peak pulse current (IPPM) of 18.9 A under a 10/1000 μs waveform. This value is measured with the device mounted on a standard FR-4 PCB using 5.0 mm × 5.0 mm copper pads per terminal. The low clamping ratio (VC/VBR ≈ 1.34) reflects high surge efficiency and minimal voltage overshoot during transient events.
Does TPSMP15AHM3_A/I have polarity markings?
Yes, the TPSMP15AHM3_A/I features a visible cathode band on the molded case - the terminal adjacent to this band is the cathode. This marking is essential for correct unidirectional installation, as reverse-biasing the device beyond its stand-off voltage (VWM = 12.8 V) will cause conduction and potential failure. The polarity is consistent across all TPSMPx.A variants and documented in the mechanical outline drawing (Document Number 88471, page 4).
What is the package type and dimensions of TPSMP15AHM3_A/I?
The TPSMP15AHM3_A/I uses the SMP (DO-220AA) package: 2.18 mm × 3.61 mm body size, 1.0 mm typical height, with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Its compact footprint and low profile enable high-density routing in automotive camera modules and ECU designs where Z-height is constrained. The package outline and pad layout are fully specified in Vishay Document Number 88471, Figure "PACKAGE OUTLINE DIMENSIONS".
TPSMP15AHM3_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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 18.9A
- 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)
TPSMP15AHM3_A/I FAQ
1.How can I place an order for TPSMP15AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP15AHM3_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 TPSMP15AHM3_A/I reliable?
The price and inventory of TPSMP15AHM3_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 TPSMP15AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMP15AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP15AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP15AHM3_A/I?
TPSMP15AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP15AHM3_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 TPSMP15AHM3_A/I?
For technical support, including TPSMP15AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP15AHM3_A/I requirements.
6.How does Aetrix verify that TPSMP15AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMP15AHM3_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 TPSMP15AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMP15AHM3_A/I?
All TPSMP15AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP15AHM3_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 TPSMP15AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMP15AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP15AHM3_A/I Tags
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