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Vishay General Semiconductor - Diodes Division TPSMC20HE3_A/H
- Part No.:
- TPSMC20HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC20HE3_A/H.pdf
- Description:
- TVS DIODE 16.2VWM 29.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,718
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Product details
Overview
TPSMC20HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-reliability overvoltage protection of sensitive electronics. It features 20 V nominal breakdown voltage (VBR), 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 systems.
For engineers reviewing the TPSMC20HE3_A/H datasheet, TPSMC20HE3_A/H pinout, TPSMC20HE3_A/H application, or TPSMC20HE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C maximum junction temperature, unidirectional polarity, low clamping ratio (27.7 V / 20 V = 1.385), and compatibility with automated SMT assembly under J-STD-002/JESD 22-B102.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and fast response to transients induced by inductive load switching or lightning surges. Its junction passivation enables operation up to TJ = 185 °C and meets MSL Level 1 per J-STD-020 at 260 °C peak reflow.
The device delivers 1500 W peak pulse power with a 10/1000 µs waveform while maintaining low incremental surge resistance and excellent clamping capability. It is rated for 200 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and exhibits a typical VBR temperature coefficient of +0.082 %/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 19.0 / 20.0 / 21.0 V - Ensures reliable triggering above system operating voltage while avoiding false trips during normal transients. |
| VWM | 17.1 V - Maximum continuous reverse voltage before leakage exceeds 1 µA; defines safe operating margin below VBR. |
| IPPM | 54.2 A - Peak surge current it can safely divert at 10/1000 µs waveform without degradation. |
| VC @ IPPM | 27.7 V - Clamped voltage seen by protected circuit during worst-case surge; determines stress on downstream components. |
| PPPM | 1500 W - Peak pulse power handling capacity under standardized 10/1000 µs test condition. |
| TJ max. | 185 °C - Enables use in under-hood automotive and high-ambient industrial environments without derating. |
| Polarity | Unidirectional - Protects against positive-going transients only; cathode marked with band. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Dimensions: 7.11 mm × 6.22 mm × 2.90 mm (L × W × H); mounting pad layout specified per Vishay outline drawing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE > VBR. |
| Anode | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JEDEC standard. |
| 185 °C junction rating | Supports operation in engine control units (ECUs), battery management systems (BMS), and other high-ambient applications without thermal derating. |
| 1500 W peak pulse power | Handles severe ISO 7637-2 pulse 5a/b and IEC 61000-4-5 surge events common in 12 V/24 V vehicle electrical systems. |
| Low clamping voltage (27.7 V @ 54.2 A) | Minimizes overvoltage stress on 3.3 V/5 V/12 V logic and power ICs during transient suppression. |
| MSL Level 1 moisture sensitivity | Enables unlimited floor life and standard reflow profiles up to 260 °C peak without baking. |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply rails feeding ECUs, body control modules, and lighting drivers from load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between battery rail and input filter capacitor. Use Value: Withstands 1500 W surges and clamps to 27.7 V, preventing damage to downstream DC-DC converters and microcontrollers rated for ≤30 V absolute maximum. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation equipment. IC Role / Device Role / Timing Role: Bidirectional protection element placed across signal and return lines near connector entry point. Use Value: Fast response time and low leakage (<1 µA at 17.1 V) preserve signal integrity while suppressing ESD and cable discharge events. |
| Telecom Power Interface | Consumer Device USB/Power Input |
|
Use Scenario: Safeguarding PoE-powered devices (e.g., IP cameras, access points) against surges entering via Ethernet cables or auxiliary DC inputs. IC Role / Device Role / Timing Role: Unidirectional TVS connected between DC input and chassis ground to absorb common-mode transients. Use Value: 185 °C rating ensures stable performance in sealed enclosures; 200 A IFSM withstands repeated lightning-induced surges. |
Use Scenario: Protecting USB-C PD input stages and internal battery charging circuits in portable speakers, power banks, and smart home hubs. IC Role / Device Role / Timing Role: First-line transient suppressor placed immediately after input connector, before EMI filter and buck converter. Use Value: Compact SMC footprint saves PCB space; RoHS-compliant HE3 termination supports lead-free manufacturing and automotive compliance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20A | Same VWM (17.1 V) and VC (27.7 V), but lower PPPM (600 W) and IPPM (24.7 A); SMB package (smaller footprint, lower thermal mass). | Not suitable for automotive load dump or industrial 1500 W surge standards; limited to consumer-grade surge immunity (IEC 61000-4-2/4-5 Level 3). | Select SMBJ20A only if space-constrained and surge energy is ≤600 W; verify thermal dissipation in PCB layout. |
| TPSMC20AHM3_A/H | Identical electrical specs and SMC package; HM3 suffix denotes halogen-free molding compound (vs. HE3's RoHS-compliant standard compound). | No functional difference; HM3 required only where halogen-free compliance is mandated (e.g., certain EU industrial or telecom contracts). | Choose TPSMC20AHM3_A/H when halogen-free material declaration is contractually required; otherwise TPSMC20HE3_A/H is fully interchangeable. |
Compared with SMBJ20A, TPSMC20HE3_A/H delivers 2.5× higher surge power handling and automotive-grade thermal robustness; compared with TPSMC20AHM3_A/H, it offers identical protection performance with standard RoHS-compliant packaging-making it the default choice unless halogen-free certification is explicitly required.
Availability
TPSMC20HE3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, and telecom power input applications requiring stable component supply, AEC-Q101 qualification, and high-temperature reliability.
Supply support for TPSMC20HE3_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, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability, high-power, and automotive-qualified solutions.
The TPSMC series belongs to Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for demanding transient suppression in automotive, industrial, and telecom infrastructure where 1500 W surge capability and 185 °C operation are critical.
FAQ
What is the maximum junction temperature rating for TPSMC20HE3_A/H?
The TPSMC20HE3_A/H has a maximum junction temperature (TJ) rating of +185 °C, verified per AEC-Q101 stress testing. This allows uninterrupted operation in under-hood automotive environments and high-ambient industrial settings without thermal derating. The TPSMC20HE3_A/H maintains full electrical specifications up to this limit, supported by its passivated anisotropic rectifier structure and thermally robust SMC package.
Is TPSMC20HE3_A/H AEC-Q101 qualified?
Yes, TPSMC20HE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's official documentation (Document Number: 88407, Revision: 19-Jan-2024). The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction. Qualification covers temperature cycling, high-temperature operating life, and mechanical shock tests required for automotive electronic components.
What does the "HE3" suffix mean in TPSMC20HE3_A/H?
The "HE3" suffix in TPSMC20HE3_A/H indicates RoHS-compliant construction with matte tin-plated leads, J-STD-002/JESD 22-B102 solderability, and AEC-Q101 qualification. The "_A/H" denotes revision code A and packaging in 7″ tape-and-reel (H = 850 pcs/reel). This distinguishes it from HM3 (halogen-free) variants and non-automotive base part numbers.
What is the clamping voltage of TPSMC20HE3_A/H at its rated peak pulse current?
The clamping voltage (VC) of TPSMC20HE3_A/H is 27.7 V at its rated peak pulse current (IPPM) of 54.2 A, measured using the standardized 10/1000 µs waveform. This value is guaranteed per Vishay's Electrical Characteristics table and reflects the maximum voltage imposed on the protected circuit during worst-case surge conditions.
Can TPSMC20HE3_A/H be used in bidirectional protection circuits?
No, TPSMC20HE3_A/H is unidirectional only, as stated in the Features section of its datasheet. It protects against positive-going transients on the cathode side relative to anode. For bidirectional protection, two devices must be connected in series opposition or a dedicated bidirectional TVS (e.g., TPSMC20CA) must be selected-TPSMC20HE3_A/H itself does not support reverse-polarity surge suppression.
TPSMC20HE3_A/H 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_A/H FAQ
1.How can I place an order for TPSMC20HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC20HE3_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 TPSMC20HE3_A/H reliable?
The price and inventory of TPSMC20HE3_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 TPSMC20HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC20HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC20HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC20HE3_A/H?
TPSMC20HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC20HE3_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 TPSMC20HE3_A/H?
For technical support, including TPSMC20HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC20HE3_A/H requirements.
6.How does Aetrix verify that TPSMC20HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC20HE3_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 TPSMC20HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC20HE3_A/H?
All TPSMC20HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC20HE3_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 TPSMC20HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC20HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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