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Vishay General Semiconductor - Diodes Division TPSMC20HE3/57T
- Part No.:
- TPSMC20HE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC20HE3/57T.pdf
- Description:
- TVS DIODE 16.2VWM 29.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,548
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Product details
Overview
TPSMC20HE3/57T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on power and signal lines. It features 20 V nominal breakdown voltage (VBR = 19.0–21.0 V), 17.1 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 µs), 54.2 A peak pulse current (IPPM), and clamps to 27.7 V at IPPM. It is used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the TPSMC20HE3/57T datasheet, TPSMC20HE3/57T pinout, TPSMC20HE3/57T application, or TPSMC20HE3/57T equivalent, key selection criteria include unidirectional polarity, 185 °C maximum junction temperature, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.39), and compatibility with automated SMT assembly under J-STD-020 MSL level 1.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its 10/1000 µs waveform response delivers consistent clamping performance up to 1500 W, with fast response time (<1 ns) and minimal capacitance (typ. 200 pF at 0 V).
The device operates across -65 °C to +185 °C junction temperature range and meets AEC-Q101 stress testing requirements. Its matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102, and it passes JESD 201 Class 2 whisker testing when ordered with HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 19.0 / 20.0 / 21.0 V - ensures reliable turn-on above system operating voltage while avoiding false triggering |
| VWM | 17.1 V - maximum continuous reverse voltage before leakage exceeds 1 µA, matching 18–20 V rail systems |
| VC @ IPPM | 27.7 V - clamping voltage during 54.2 A surge, limiting protected circuit stress to safe levels |
| PPPM | 1500 W - handles high-energy transients such as ISO 7637-2 Pulse 1/2a/5a in automotive ECUs |
| TJ max | +185 °C - supports under-hood automotive placement and extended industrial thermal environments |
| Package | SMC (DO-214AB) - standard 8.13 mm × 6.22 mm footprint compatible with IPC-7351B SMC_8.13x6.22mm_Pitch3.81mm |
| AEC-Q101 | Qualified - validated for automotive reliability including HTGB, HTRB, and temperature cycling per AEC standard |
Pinout & Package
TPSMC20HE3/57T uses the SMC (DO-214AB) surface-mount package with cathode indicated by a color band. The device has two terminals: anode and cathode, mounted on 8.0 mm × 8.0 mm copper pads per terminal for optimal thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground during overvoltage events |
| Anode | Reference node | Typically tied to system ground or low-impedance return path to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 µs) | Enables robust protection against severe load dump and inductive switching surges without derating at 25 °C |
| Clamping voltage of 27.7 V at 54.2 A | Provides tight voltage limiting margin for 24 V automotive systems with ±10 % tolerance |
| 185 °C maximum junction temperature | Supports operation in high-ambient environments like engine control modules and motor drives |
| AEC-Q101 qualified (HE3 suffix) | Confirms compliance with automotive stress tests including high-temperature reverse bias and temperature cycling |
| MSL Level 1 (260 °C peak reflow) | Allows single-pass lead-free reflow without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in body control modules against ISO 7637-2 load dump pulses and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery input and DC-DC converter input stage. Use Value: Clamps transients to ≤27.7 V, preventing damage to downstream regulators and microcontrollers rated for 30 V absolute maximum. | Use Scenario: Shielding analog sensor inputs (e.g., current shunt monitors) from ESD and switching noise in variable-frequency drives. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector entry point before signal conditioning op-amps. Use Value: Limits voltage excursions to <30 V during 8 kV contact ESD events while maintaining signal integrity via fast sub-nanosecond response. |
| Telecom DC Power Interface | Consumer Appliance Mainboard Surge Protection |
Use Scenario: Safeguarding PoE-powered equipment front-end circuits from lightning-induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary-level TVS on DC input before hot-swap controller and filter inductors. Use Value: Absorbs 1500 W surges per IEEE C62.41.2 Category B/C waveforms without degradation over >1000 events. | Use Scenario: Protecting MCU reset lines and communication buses (UART, I²C) from ESD and board-level transients in smart home appliances. IC Role / Device Role / Timing Role: Secondary-level TVS on low-voltage rails (3.3 V/5 V) after LDOs, co-located with connectors. Use Value: Provides 1 µA leakage at 17.1 V, ensuring no impact on sleep-mode current budgets while suppressing >15 kV air discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A | Lower peak power (400 W), smaller SMA package (DO-214AC), VC = 32.4 V at IPPM | Not AEC-Q101 qualified; limited to consumer/industrial use below 150 °C ambient | Select when cost-sensitive, lower-energy protection suffices and automotive qualification is unnecessary |
| TPSMC20AHM3 | Identical electrical specs; halogen-free molding compound and same AEC-Q101 qualification | No functional difference; differs only in material compliance (halogen-free vs. RoHS-only) | Choose HM3 variant if halogen-free requirement applies per customer environmental policy |
Compared with SMAJ20A and TPSMC20AHM3, the TPSMC20HE3/57T offers superior energy handling (1500 W vs. 400 W) and automotive-grade reliability, while sharing identical clamping behavior and footprint with TPSMC20AHM3-making it the preferred choice for high-stress 24 V systems requiring long-term field durability.
Availability
TPSMC20HE3/57T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drive interfaces, and telecom DC power systems requiring stable component supply and full AEC-Q101 traceability.
Supply support for TPSMC20HE3/57T 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, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade solutions.
The TPSMC series was developed specifically for high-energy transient suppression in harsh-environment applications, combining high-temperature capability, AEC-Q101 qualification, and industry-standard SMC packaging for seamless integration into automotive and industrial power designs.
FAQ
What is the breakdown voltage tolerance for TPSMC20HE3/57T?
The TPSMC20HE3/57T has a specified breakdown voltage range of 19.0 V (minimum) to 21.0 V (maximum) at 1 mA test current, with a nominal value of 20.0 V. This ±5 % tolerance ensures predictable turn-on behavior across production lots and temperature ranges, supporting robust design margins in 24 V systems where overvoltage thresholds must remain tightly controlled.
Is TPSMC20HE3/57T suitable for automotive applications?
Yes, TPSMC20HE3/57T is AEC-Q101 qualified and explicitly designated for automotive use with the HE3 suffix. It undergoes stress testing including high-temperature reverse bias, temperature cycling, and humidity bias life per AEC-Q101 Rev D. Its 185 °C maximum junction temperature and MSL Level 1 rating make it appropriate for under-hood and powertrain control module applications.
What is the clamping voltage of TPSMC20HE3/57T at its rated peak pulse current?
The TPSMC20HE3/57T clamps to a maximum of 27.7 V at its rated peak pulse current of 54.2 A (10/1000 µs waveform). This clamping voltage is measured under standardized conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events, enabling safe interface with 30 V-rated components.
Does TPSMC20HE3/57T have a bidirectional configuration option?
No, TPSMC20HE3/57T is unidirectional only, as confirmed in the Vishay datasheet revision 19-Jan-2024. The device features a cathode band marking and is intended for DC line protection where polarity is fixed. For bidirectional AC or data-line protection, engineers should select alternate families such as the SMBJ or SMCJ series with "CA" suffix variants.
What is the maximum leakage current of TPSMC20HE3/57T at its stand-off voltage?
At its 17.1 V stand-off voltage (VWM) and 25 °C ambient, the TPSMC20HE3/57T exhibits a maximum reverse leakage current of 1.0 µA. At elevated temperature (150 °C), leakage increases to 10 µA-still well within acceptable limits for low-power monitoring circuits and battery-backed systems where standby current must be minimized.
TPSMC20HE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 16.2V
- Voltage - Breakdown (Min):
- 18V
- Voltage - Clamping (Max) @ Ipp:
- 29.1V
- Current - Peak Pulse (10/1000µs):
- 51.5A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
TPSMC20HE3/57T FAQ
1.How can I place an order for TPSMC20HE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC20HE3/57T 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 TPSMC20HE3/57T reliable?
The price and inventory of TPSMC20HE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC20HE3/57T is usually 5 days.
3.What payment methods are accepted for TPSMC20HE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC20HE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC20HE3/57T?
TPSMC20HE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC20HE3/57T 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 TPSMC20HE3/57T?
For technical support, including TPSMC20HE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC20HE3/57T requirements.
6.How does Aetrix verify that TPSMC20HE3/57T is sourced from the original manufacturer or authorized distributors?
All TPSMC20HE3/57T 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 TPSMC20HE3/57T meets industry standards.
7.What is the process for return or replacement of TPSMC20HE3/57T?
All TPSMC20HE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC20HE3/57T, 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 TPSMC20HE3/57T part is unused and in its original packaging.
Return procedure for TPSMC20HE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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