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Vishay General Semiconductor - Diodes Division TPSMC20AHE3_A/I
- Part No.:
- TPSMC20AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC20AHE3_A/I.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,978
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Product details
Overview
TPSMC20AHE3_A/I 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 a 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 supply rails.
For engineers reviewing the TPSMC20AHE3_A/I datasheet, TPSMC20AHE3_A/I pinout, TPSMC20AHE3_A/I application, or TPSMC20AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C maximum junction temperature, unidirectional polarity, low clamping ratio (VC/VBR = 1.385), and MSL Level 1 moisture sensitivity rating.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with optimized junction passivation for stable performance under high-temperature stress. Its 10/1000 μs waveform response delivers precise clamping during fast transients induced by inductive switching or ESD events.
The device operates across -65 °C to +185 °C junction temperature range and maintains reliable surge suppression even at elevated ambient temperatures due to its positive temperature coefficient of VBR (0.082 %/°C). It is rated for non-repetitive peak forward surge current of 200 A (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 19.0 / 20.0 / 21.0 V - Ensures consistent breakdown initiation above system operating voltage while accommodating process variation |
| 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 clamp at 10/1000 μs waveform without degradation |
| VC @ IPPM | 27.7 V - Clamped voltage seen by protected circuit during worst-case transient; determines downstream component stress |
| PPPM | 1500 W - Peak pulse power handling capability under standardized 10/1000 μs surge condition |
| TJ max | +185 °C - Enables operation in under-hood automotive and high-temperature industrial environments |
| MSL Level | Level 1 per J-STD-020 - Allows unlimited floor life and reflow up to 260 °C peak without baking |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, cathode indicated by color band. Dimensions: 7.11 mm × 6.22 mm × 2.90 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction or transient clamping | Connected to ground or low-side reference in unidirectional TVS configuration |
| Cathode | Current exit terminal during clamping; marked by color band | Connected to protected line (e.g., power rail or signal trace) to shunt surge energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per JEDEC standards |
| 1500 W peak pulse power (10/1000 μs) | Robustly handles ISO 7637-2 Pulse 1, 2a, and 5a transients in 12 V vehicle systems |
| Low clamping voltage (27.7 V @ 54.2 A) | Minimizes stress on downstream 30 V-rated MOSFETs and logic ICs during surge events |
| TJ = 185 °C capability | Supports placement near heat sources (e.g., power converters) without derating concerns |
| MSL Level 1, 260 °C reflow compatible | Eliminates pre-bake requirements and enables standard SMT assembly processes |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 17.1 V. Use Value: Limits voltage excursion to ≤27.7 V during 54.2 A transients, preserving 30 V-rated power management ICs. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal line and ground to divert sub-100 ns ESD pulses. Use Value: Maintains signal integrity with <1 μA leakage at 17.1 V, preventing DC offset errors in precision measurement circuits. |
| Consumer Power Adapter Input Stage | Telecom DC Power Interface |
Use Scenario: Safeguarding AC-DC adapter primary-side controllers from lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Fast-response TVS placed across bridge rectifier output to clamp voltage spikes before bulk capacitor. Use Value: Withstands 200 A 8.3 ms surge (IFSM), ensuring robustness against repetitive line disturbances. |
Use Scenario: Protecting PoE-powered equipment front-end from induced surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Unidirectional TVS installed between DC+ and ground to absorb common-mode transients from Ethernet cabling. Use Value: Delivers 1500 W clamping capacity at 48 V system level, meeting IEC 61000-4-5 Level 3 immunity 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 |
|---|---|---|---|
| SMBJ20AHE3_A/H | Lower PPPM (600 W), smaller SMB (DO-214AA) package, same VBR/VWM specs | Reduced surge handling; suitable only for lower-energy transients (e.g., IEC 61000-4-2 ESD) | Select when board space is constrained and peak surge energy is ≤600 W |
| TPSMC20AHM3_A/I | Halogen-free variant; identical electrical specs, same SMC package, meets JESD201 Class 2 whisker resistance | No functional difference; required only where halogen-free compliance is mandated (e.g., EU automotive Tier 1) | Choose for RoHS + halogen-free regulatory compliance without design change |
Compared with SMBJ20AHE3_A/H and TPSMC20AHM3_A/I, the TPSMC20AHE3_A/I offers superior 1500 W surge capacity in the larger SMC footprint and AEC-Q101 qualification out-of-box-making it optimal for automotive and high-reliability industrial designs where sustained transient energy exceeds 600 W.
Availability
TPSMC20AHE3_A/I is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC power interface applications requiring stable component supply and long-term lifecycle support.
Supply support for TPSMC20AHE3_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, TVS devices, and optoelectronics with emphasis on reliability and high-temperature performance.
The TPSMC20AHE3_A/I belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for automotive and industrial applications demanding AEC-Q101 qualification, 185 °C operation, and robust 1500 W transient suppression.
FAQ
What is the clamping voltage of the TPSMC20AHE3_A/I at its rated peak pulse current?
The TPSMC20AHE3_A/I clamps to a maximum of 27.7 V when subjected to its specified peak pulse current of 54.2 A under the 10/1000 μs waveform condition. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream components. The clamping voltage directly determines the maximum stress imposed on protected ICs or MOSFETs during surge events, making it a critical parameter for system-level reliability validation. The TPSMC20AHE3_A/I maintains this clamping performance across its full operating temperature range.
Is the TPSMC20AHE3_A/I qualified for automotive applications?
Yes, the TPSMC20AHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified variants. It undergoes rigorous testing for temperature cycling, highly accelerated life testing (HALT), and surge endurance per JEDEC standards. This qualification makes the TPSMC20AHE3_A/I suitable for under-hood and body-control module applications where reliability under thermal and electrical stress is mandatory. Automotive customers may rely on the TPSMC20AHE3_A/I for ISO 7637-2 compliant protection without additional qualification effort.
What does the "HE3" suffix indicate in TPSMC20AHE3_A/I?
The "HE3" suffix in TPSMC20AHE3_A/I identifies a RoHS-compliant, AEC-Q101 qualified version with matte tin-plated leads that meet J-STD-002 and JESD 22-B102 solderability requirements. The "H" denotes the packaging format (13″ tape and reel), and "I" specifies the reel quantity (3500 units). This suffix differentiates it from non-automotive variants and confirms compliance with automotive supply chain requirements including whisker resistance (JESD 201 Class 2) and high-temperature reliability. Engineers selecting the TPSMC20AHE3_A/I benefit from guaranteed qualification status without needing to verify test reports separately.
How does the TPSMC20AHE3_A/I compare to SMAJ20A in terms of surge capability?
The TPSMC20AHE3_A/I delivers 1500 W peak pulse power (10/1000 μs), whereas the SMAJ20A is rated for only 400 W in the smaller SMA (DO-214AC) package. This 275 % higher power rating allows the TPSMC20AHE3_A/I to handle more severe transients such as ISO 7637-2 Pulse 5a load dump events in automotive 12 V systems. Additionally, the TPSMC20AHE3_A/I supports a higher IFSM (200 A vs. 40 A) and operates up to +185 °C junction temperature versus +150 °C for SMAJ20A. These differences make the TPSMC20AHE3_A/I appropriate for mission-critical protection where SMAJ20A would fail prematurely.
What is the maximum reverse leakage current of the TPSMC20AHE3_A/I at its stand-off voltage?
The TPSMC20AHE3_A/I exhibits a maximum reverse leakage current of 1.0 μA at its stand-off voltage (VWM) of 17.1 V and ambient temperature of 25 °C. At elevated temperature (TJ = 150 °C), leakage increases to a maximum of 10 μA under the same VWM. This low leakage ensures minimal power loss and avoids interference with high-impedance sensor bias networks or precision voltage references. Designers using the TPSMC20AHE3_A/I in battery-powered or low-quiescent-current systems can rely on its tight leakage specification to maintain system efficiency and accuracy without additional filtering or compensation.
TPSMC20AHE3_A/I 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):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 54.2A
- 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)
TPSMC20AHE3_A/I FAQ
1.How can I place an order for TPSMC20AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC20AHE3_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 TPSMC20AHE3_A/I reliable?
The price and inventory of TPSMC20AHE3_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 TPSMC20AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC20AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC20AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC20AHE3_A/I?
TPSMC20AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC20AHE3_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 TPSMC20AHE3_A/I?
For technical support, including TPSMC20AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC20AHE3_A/I requirements.
6.How does Aetrix verify that TPSMC20AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC20AHE3_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 TPSMC20AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC20AHE3_A/I?
All TPSMC20AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC20AHE3_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 TPSMC20AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC20AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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