My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMC20AHE3_A/H
- Part No.:
- TPSMC20AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC20AHE3_A/H.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,717
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMC20AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust 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 power systems and industrial control interfaces.
For engineers reviewing the TPSMC20AHE3_A/H datasheet, TPSMC20AHE3_A/H pinout, TPSMC20AHE3_A/H application, or TPSMC20AHE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C maximum junction temperature, low 1.0 μA reverse leakage at VWM, unidirectional polarity, and compatibility with high-reliability automotive PCB layouts requiring MSL Level 1 handling.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable clamping performance under repetitive surge stress. Its 10/1000 μs waveform rating reflects real-world inductive switching transients, and its 27.7 V clamping voltage at 54.2 A ensures safe voltage limiting for 24 V rail components.
The device operates across -65 °C to +185 °C, with a positive temperature coefficient of VBR (0.082 %/°C), enabling predictable voltage shift under thermal load. It meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 reflow requirements, supporting automated assembly in automotive-grade production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 19.0 / 20.0 / 21.0 V - Ensures reliable triggering above 17.1 V system operating voltage without false trips |
| VWM | 17.1 V - Maximum continuous reverse voltage before significant leakage begins; matches 24 V nominal rail derating |
| IPPM | 54.2 A - Peak surge current it safely shunts during 10/1000 μs transients, critical for ISO 7637-2 Pulse 1/2a immunity |
| VC @ IPPM | 27.7 V - Clamped voltage seen by protected circuit; stays below 30 V absolute max ratings of common logic and gate drivers |
| PPPM | 1500 W - Sustains high-energy surges typical of automotive load-dump or inductive kickback without degradation |
| TJ max | +185 °C - Enables operation in engine bay or power module environments where ambient exceeds 125 °C |
| Leakage @ VWM | 1.0 μA - Minimal standby power loss and negligible impact on high-impedance sensor bias networks |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, cathode indicated by color band. Dimensions: 6.22 mm × 5.59 mm × 2.41 mm (L × W × H), 0.31″ × 0.31″ copper pad requirement per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to system ground or low-side reference | Completes surge path to ground when reverse-biased transient exceeds VBR; must be routed with low-inductance trace |
| Cathode | Protected line connection; tied to I/O, power rail, or signal line requiring clamping | Receives transient energy; polarity marking ensures correct orientation to avoid open-circuit failure during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronic modules including body control units and power distribution systems |
| 185 °C junction rating | Supports placement near heat sources (e.g., DC-DC converters, motor drivers) without derating or thermal shutdown |
| 1500 W peak pulse power | Withstands multiple ISO 16750-2 load-dump pulses without parametric shift or catastrophic failure |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles; no floor life limitation or baking required prior to assembly |
| Low 1.0 μA leakage @ VWM | Preserves battery life in always-on automotive subsystems and avoids false triggering in high-Z analog sensing paths |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs of body control modules against load-dump transients up to 35 V and 100 ms duration. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between input rail and chassis ground to limit voltage excursion during alternator regulation failure. Use Value: Maintains 27.7 V clamping at 54.2 A, ensuring downstream regulators and microcontrollers remain within absolute maximum ratings during ISO 16750-2 Test 4a. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage TVS placed across signal and return lines to absorb fast-rising transients while preserving signal integrity. Use Value: 1.0 μA leakage at 17.1 V prevents offset error in precision current-sense amplifiers; 27.7 V clamping protects op-amp inputs rated to 30 V. |
| Motor Drive Gate Protection | Telecom DC Power Input Stage |
Use Scenario: Shielding high-side N-channel MOSFET gates from Miller-induced voltage spikes during fast switching in BLDC inverters. IC Role / Device Role / Timing Role: Fast-response TVS connected between gate and source to clamp dv/dt-induced overshoot before gate oxide breakdown. Use Value: Sub-nanosecond response time and 27.7 V clamping prevent gate-source overvoltage beyond 20 V rating of common SiC and GaN drivers. |
Use Scenario: Front-end protection of 48 V telecom rectifier outputs against lightning-induced surges on outdoor plant wiring. IC Role / Device Role / Timing Role: Primary surge suppression element placed after input filter but before DC-DC converter stage. Use Value: 1500 W capability handles 10/1000 μs surges per IEC 61000-4-5 Level 4; 185 °C rating supports operation inside sealed outdoor enclosures. |
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 | Same VBR (20 V), lower PPPM = 600 W, SMB (DO-214AA) package, smaller footprint (4.57 mm × 3.94 mm) | Limited to lower-energy transients (e.g., ESD, contact discharge); unsuitable for load-dump or long-duration surges | Select when board space is constrained and surge threat level is defined by IEC 61000-4-2, not ISO 16750-2 |
| TPSMC20AHM3_A/H | Identical electrical specs and SMC package; halogen-free molding compound, same AEC-Q101 qualification | No functional difference; differs only in material compliance (halogen-free vs. RoHS-only) | Choose for automotive programs requiring halogen-free BOM compliance per JESC standards |
Compared with TPSMC20AHE3_A/H, SMBJ20AHE3_A/H offers space savings but sacrifices 60% peak power handling-critical for automotive load-dump immunity-while TPSMC20AHM3_A/H provides identical protection with enhanced environmental compliance, requiring no layout or schematic change.
Availability
TPSMC20AHE3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and motor drive gate protection requiring stable component supply, AEC-Q101 validation, and high-temperature reliability.
Supply support for TPSMC20AHE3_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 reliability, power efficiency, and automotive-grade qualification.
The TPSMC20AHE3_A/H belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for harsh-environment overvoltage protection in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the maximum clamping voltage of the TPSMC20AHE3_A/H at its rated peak pulse current?
The TPSMC20AHE3_A/H clamps to a maximum of 27.7 V when subjected to its rated peak pulse current of 54.2 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures protected circuits remain within safe operating limits during surge events. The clamping voltage is guaranteed across the full operating temperature range and forms the basis for selecting downstream component voltage ratings in designs using the TPSMC20AHE3_A/H.
Is the TPSMC20AHE3_A/H qualified for automotive applications?
Yes, the TPSMC20AHE3_A/H is AEC-Q101 qualified, as confirmed in the Vishay datasheet (Document Number: 88407, Revision: 19-Jan-2024). This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified versions, making the TPSMC20AHE3_A/H suitable for use in automotive ECUs, body electronics, and powertrain-related modules.
What is the reverse leakage current specification for the TPSMC20AHE3_A/H at its stand-off voltage?
The TPSMC20AHE3_A/H 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 temperatures (e.g., 150 °C), leakage increases to a maximum of 10 μA, as specified in the electrical characteristics table. This low leakage ensures minimal power loss in always-on systems and avoids interference with high-impedance sensor bias networks or precision reference circuits when the TPSMC20AHE3_A/H is deployed.
Does the TPSMC20AHE3_A/H have a unidirectional or bidirectional configuration?
The TPSMC20AHE3_A/H is a unidirectional TVS diode, as clearly stated in the "FEATURES" section of the Vishay datasheet. It conducts only during reverse-bias overvoltage events and behaves as an open circuit under forward bias. Its polarity is marked by a cathode band, and it must be oriented with the cathode toward the protected line and anode toward ground. Bidirectional variants (e.g., TPSMC20CA) are separate part numbers and are not interchangeable with the TPSMC20AHE3_A/H.
What is the package type and mounting compatibility of the TPSMC20AHE3_A/H?
The TPSMC20AHE3_A/H uses the SMC (DO-214AB) surface-mount package, with dimensions of 6.22 mm × 5.59 mm × 2.41 mm and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. It is rated MSL Level 1 and supports peak reflow temperatures up to 260 °C. The recommended mounting pad layout specifies 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads at each terminal to ensure thermal dissipation and mechanical reliability-key for sustained surge performance in the TPSMC20AHE3_A/H.
TPSMC20AHE3_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):
- 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/H FAQ
1.How can I place an order for TPSMC20AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC20AHE3_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 TPSMC20AHE3_A/H reliable?
The price and inventory of TPSMC20AHE3_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 TPSMC20AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC20AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC20AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC20AHE3_A/H?
TPSMC20AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC20AHE3_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 TPSMC20AHE3_A/H?
For technical support, including TPSMC20AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC20AHE3_A/H requirements.
6.How does Aetrix verify that TPSMC20AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC20AHE3_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 TPSMC20AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC20AHE3_A/H?
All TPSMC20AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC20AHE3_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 TPSMC20AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC20AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC20AHE3_A/H 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 …
