My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMP18HM3/84A
~~2.jpg)
- Part No.:
- TPSMP18HM3/84A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-220AA
- Datasheet:
-
TPSMP18HM3/84A.pdf
- Description:
- TVS DIODE 14.5VWM 26.5VC DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,395
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMP18HM3/84A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-220AA (SMP) package, designed for high-reliability overvoltage protection of signal lines and power rails. It features 16.2 V to 19.8 V breakdown voltage (VBR), 26.5 V clamping voltage (VC) at 15.1 A peak pulse current, 400 W peak pulse power rating, and AEC-Q101 qualification for automotive use.
For engineers reviewing the TPSMP18HM3/84A datasheet, TPSMP18HM3/84A pinout, TPSMP18HM3/84A application, or TPSMP18HM3/84A equivalent, this device is selected for robust ESD/surge protection in space-constrained automotive ECUs, sensor interfaces, and industrial control I/O where low-profile mounting, 185 °C junction capability, and MSL Level 1 reflow compatibility are critical.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve fast response time (<1 ns), low incremental surge resistance, and stable clamping under repetitive transients. Its unidirectional configuration enables integration into DC-biased circuits such as CAN bus lines, power supply inputs, and analog sensor outputs without reverse leakage concerns at operating voltages up to 14.5 V stand-off (VWM).
The DO-220AA package supports automated placement with 1.0 mm typical height and matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102. Thermal performance is rated for -65 °C to +185 °C operation, with derating applied above 25 °C ambient per Figure 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 16.2 V / 19.8 V - defines minimum voltage at which clamping initiates; ensures reliable turn-on before downstream IC damage |
| VWM | 14.5 V - maximum continuous reverse working voltage; sets safe operating margin below breakdown |
| VC @ IPPM | 26.5 V @ 15.1 A - clamped voltage during 10/1000 µs surge; determines protected circuit's peak stress level |
| PPPM | 400 W - peak pulse power handling capacity; supports IEC 61000-4-5 Level 4 surge immunity |
| TJ max | +185 °C - enables under-hood automotive deployment without thermal derating penalties |
| Package | DO-220AA (SMP) - 1.0 mm height, 2.67 mm × 1.88 mm footprint; optimized for high-density PCB layouts |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
TPSMP18HM3/84A is a two-terminal unidirectional TVS diode in DO-220AA (SMP) package. Cathode is marked by a color band on the body; anode is unmarked end. The device mounts as a surface-mount rectifier with no internal pins-only two solderable terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal in forward bias; connected to lower-potential side of protected line | Completes conduction path during transient clamp; must be routed to ground or return rail |
| Cathode | Negative terminal; marked by color band; connected to higher-potential side of protected line | Defines polarity-sensitive placement; incorrect orientation disables clamping function |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR tolerance (±5 % for 'A' variants) and low leakage (<1 μA at VWM) across temperature |
| 185 °C junction rating | Supports operation in engine bay, transmission control, and other high-ambient automotive zones without derating |
| 1.0 mm profile | Reduces board stack height and improves airflow in sealed enclosures; compatible with low-clearance heatsinks |
| MSL Level 1 (260 °C peak) | Eliminates pre-bake requirement for standard SMT reflow, reducing manufacturing cost and cycle time |
| Halogen-free, RoHS-compliant | Meets global environmental compliance mandates including EU Directive 2011/65/EU and China RoHS II |
Applications
| Automotive Sensor Interface | CAN Bus Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to shunt ESD and load dump energy. Use Value: Clamps transients to ≤26.5 V while maintaining <1 μA leakage at 14.5 V, preserving signal integrity and measurement accuracy. | Use Scenario: Safeguarding CAN_H and CAN_L lines against ISO 16750-2 jump-start and alternator load dump surges. IC Role / Device Role / Timing Role: Bidirectional protection implemented using two TPSMP18HM3/84A devices (one per line) referenced to common ground. Use Value: Withstands 400 W pulses and operates up to +185 °C, meeting OEM requirements for powertrain and chassis networks. |
| Industrial PLC I/O Module | Consumer Appliance Motor Drive |
Use Scenario: Shielding digital input channels in programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to divert fast-rising transients before reaching isolation barrier or MCU GPIO. Use Value: Sub-1 ns response time and 15.1 A surge current rating ensure clamping occurs before propagation through optocoupler or digital isolator. | Use Scenario: Suppressing commutation spikes on brushed DC motor power feeds in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Placed across motor terminals to clamp inductive kickback during PWM switching transitions. Use Value: 40 A IFSM rating and 2.5 V VF at 25 A allow direct integration without series fusing in 24 V systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ18A-E3/5AT | DO-214AC (SMA) package; 18 V nominal VBR; 400 W PPPM; 1.9 mm height | Larger footprint and height limit use in ultra-thin automotive modules | Select when legacy SMA layout exists and 1.0 mm height is not required |
| TPSMA6.8A-Q | Same DO-220AA package; lower 6.8 V VBR; 300 W PPPM; AEC-Q101 qualified | Designed for 5 V logic rail protection; insufficient clamping margin for 12 V systems | Choose only for sub-10 V signal line protection where tighter VBR tolerance is needed |
Compared with SMAJ18A-E3/5AT and TPSMA6.8A-Q, TPSMP18HM3/84A delivers identical surge robustness in a 35 % lower profile package, enabling next-generation compact ECU designs while retaining full AEC-Q101 compliance and automotive thermal capability.
Availability
TPSMP18HM3/84A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, consumer appliance motor drives, and CAN bus protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPSMP18HM3/84A 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 high-reliability and automotive-grade performance.
The TPSMP series belongs to Vishay's PAR® (Protection Against Transients) family, engineered specifically for high-power-density transient suppression in space-constrained automotive and industrial environments where thermal resilience and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage range of the TPSMP18HM3/84A?
The TPSMP18HM3/84A has a specified breakdown voltage (VBR) range of 16.2 V to 19.8 V at 1.0 mA test current, per the Vishay datasheet Document Number 88471. This ±10 % tolerance reflects the non-A variant designation and ensures predictable clamping onset across production lots. The TPSMP18HM3/84A is distinct from the tighter-tolerance TPSMP18A variant (17.1–18.9 V).
Is the TPSMP18HM3/84A suitable for bidirectional transient protection?
No, the TPSMP18HM3/84A is a unidirectional TVS diode and must be used in polarity-sensitive configurations. For bidirectional protection, two TPSMP18HM3/84A devices can be connected in series opposing configuration, or a dedicated bidirectional part like SMAJ18A should be selected. The TPSMP18HM3/84A datasheet explicitly states "Uni-direction only" under Features.
What is the maximum clamping voltage of the TPSMP18HM3/84A under surge conditions?
The TPSMP18HM3/84A exhibits a maximum clamping voltage (VC) of 26.5 V at 15.1 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Does the TPSMP18HM3/84A meet automotive qualification standards?
Yes, the TPSMP18HM3/84A is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction and JESD 201 Class 2 whisker resistance. It is rated for operation from -65 °C to +185 °C and meets MSL Level 1 reflow requirements, making it suitable for under-hood automotive applications.
What package type does the TPSMP18HM3/84A use, and what are its key mechanical dimensions?
The TPSMP18HM3/84A uses the DO-220AA (SMP) package, measuring 2.67 mm × 1.88 mm with a typical height of 1.0 mm. Its cathode is marked by a visible color band, and terminals are matte tin-plated for compatibility with J-STD-002 soldering standards. The package outline is documented in Figure 7 of datasheet 88471.
TPSMP18HM3/84A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-220AA
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14.5V
- Voltage - Breakdown (Min):
- 16.2V
- Voltage - Clamping (Max) @ Ipp:
- 26.5V
- Current - Peak Pulse (10/1000µs):
- 15.1A
- 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)
TPSMP18HM3/84A FAQ
1.How can I place an order for TPSMP18HM3/84A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMP18HM3/84A 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 TPSMP18HM3/84A reliable?
The price and inventory of TPSMP18HM3/84A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMP18HM3/84A is usually 5 days.
3.What payment methods are accepted for TPSMP18HM3/84A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMP18HM3/84A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMP18HM3/84A?
TPSMP18HM3/84A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMP18HM3/84A 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 TPSMP18HM3/84A?
For technical support, including TPSMP18HM3/84A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMP18HM3/84A requirements.
6.How does Aetrix verify that TPSMP18HM3/84A is sourced from the original manufacturer or authorized distributors?
All TPSMP18HM3/84A 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 TPSMP18HM3/84A meets industry standards.
7.What is the process for return or replacement of TPSMP18HM3/84A?
All TPSMP18HM3/84A units undergo pre-shipment inspection (PSI). If there is an issue with TPSMP18HM3/84A, 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 TPSMP18HM3/84A part is unused and in its original packaging.
Return procedure for TPSMP18HM3/84A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMP18HM3/84A Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
