My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMC47AHE3/57T
- Part No.:
- TPSMC47AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC47AHE3/57T.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,630
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMC47AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 47 V breakdown voltage (VBR = 44.7–49.4 V), 40.2 V stand-off voltage (VWM), and 1500 W peak pulse power (10/1000 μs). It delivers 23.1 A peak pulse current (IPPM) with 64.8 V clamping voltage (VC) and operates up to +185 °C junction temperature-designed for automotive-grade overvoltage protection on power rails and signal lines.
For engineers reviewing the TPSMC47AHE3/57T datasheet, TPSMC47AHE3/57T pinout, TPSMC47AHE3/57T application, or TPSMC47AHE3/57T equivalent, key selection criteria include its AEC-Q101 qualification, unidirectional polarity, 1.0 μA max reverse leakage at VWM, low incremental surge resistance, and MSL Level 1 moisture sensitivity rating.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping under repetitive transients and high-temperature operation up to 185 °C. Its 10/1000 μs waveform response ensures robust suppression of inductive switching spikes and lightning-induced surges.
The device features a cathode-band-marked SMC package with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards, and meets UL 94 V-0 flammability requirements. The HE3 suffix confirms RoHS compliance and AEC-Q101 qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 44.7 / 47.0 / 49.4 V - defines minimum voltage at which device enters avalanche conduction under 1 mA test current |
| VWM | 40.2 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 64.8 V - clamped voltage during 23.1 A transient, limiting downstream IC stress |
| PPPM | 1500 W - peak pulse power handling capability per 10/1000 μs waveform |
| TJ max. | +185 °C - enables use in under-hood automotive environments without derating |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band denotes terminal polarity |
| MSL Rating | Level 1 (J-STD-020) - supports standard reflow profiles up to 260 °C peak |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case with UL 94 V-0 rating. Dimensions: 7.11 mm × 6.22 mm × 2.90 mm (L × W × H); cathode marked by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction or transient clamping | Connected to protected line's lower-potential side (e.g., ground or return path) |
| Cathode | Current exit during avalanche clamping | Connected to protected line's higher-potential side (e.g., VIN, signal rail); marked by color band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| 1500 W peak pulse power | Withstands high-energy transients common in 12 V/24 V vehicle power systems without degradation |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage exposure to downstream MOSFETs or microcontrollers during ESD or load dump |
| 185 °C junction rating | Eliminates thermal derating in engine control units and ADAS modules operating near heat sources |
| MSL Level 1 | Enables single-pass reflow assembly without baking or special handling protocols |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from ISO 7637-2 load dump pulses and alternator overshoot. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp transients above 40.2 V. Use Value: Limits peak voltage to 64.8 V during 23.1 A surge, preventing damage to 48 V-tolerant CAN transceivers and MCU power supplies. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: TVS connected across differential pair or single-ended signal-to-ground to absorb ±8 kV contact ESD per IEC 61000-4-2. Use Value: Sub-1 ns response time and 1.0 μA leakage at 40.2 V preserve signal integrity and ADC accuracy in 24-bit measurement systems. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
Use Scenario: Safeguarding PoE-powered network switches and base stations against induced surges on 48 V DC inputs. IC Role / Device Role / Timing Role: Primary clamping device on DC input rail upstream of DC/DC converter. Use Value: 1500 W rating handles 10/1000 μs surges per ITU-T K.20/21, while 185 °C rating supports sealed outdoor enclosures. | Use Scenario: Adding secondary-level surge immunity to USB-C power delivery circuits in laptops and docking stations. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line to suppress hot-swap transients and charger-induced spikes. Use Value: 40.2 V stand-off avoids interference with 20 V PD 3.0 operation, while 64.8 V clamping protects USB PD controllers rated to 65 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/57T | Same VBR range (44.7–49.4 V), but 400 W PPPM; SMA package (smaller footprint, lower thermal mass) | Limited to lower-energy transients; unsuitable for automotive load dump per ISO 7637-2 | Select when board space is constrained and surge energy is ≤400 W (e.g., consumer USB ports) |
| TPSMC47CAHE3/57T | Bi-directional variant; identical VBR, PPPM, and package-but adds symmetric clamping for AC-coupled or bidirectional signal lines | Required for RS-485, CAN FD, or audio lines where negative transients occur | Choose only if bidirectional protection is needed; otherwise, TPSMC47AHE3/57T offers lower capacitance and cost for DC rails |
Compared with SMAJ47A-E3/57T and TPSMC47CAHE3/57T, the TPSMC47AHE3/57T provides optimal balance of high-energy clamping (1500 W), automotive qualification, and unidirectional efficiency-making it the preferred choice for 12 V/24 V power rail protection where polarity is fixed and surge severity is high.
Availability
TPSMC47AHE3/57T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom DC power inputs, and consumer USB-C power delivery systems requiring stable component supply and long-term lifecycle support.
Supply support for TPSMC47AHE3/57T 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 reliability, high-temperature operation, and automotive qualification.
The TPSMC series was developed specifically for high-reliability transient suppression in harsh environments-targeting AEC-Q101-compliant automotive, industrial, and telecom infrastructure applications where 1500 W surge immunity and +185 °C operation are mandatory.
FAQ
What is the clamping voltage of the TPSMC47AHE3/57T at its rated peak pulse current?
The TPSMC47AHE3/57T has a maximum clamping voltage (VC) of 64.8 V when subjected to its rated peak pulse current (IPPM) of 23.1 A under a 10/1000 μs waveform. This value is measured per standard test conditions defined in the Vishay datasheet document 88407 and reflects the actual voltage seen by protected circuitry during worst-case transient events. The TPSMC47AHE3/57T maintains this clamping performance across its full operating temperature range.
Is the TPSMC47AHE3/57T qualified for automotive applications?
Yes, the TPSMC47AHE3/57T is AEC-Q101 qualified, as confirmed by Vishay's documentation and indicated by the "HE3" suffix in its ordering code. It undergoes rigorous stress testing-including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling-to ensure reliability in automotive environments. The TPSMC47AHE3/57T is explicitly recommended for engine control units, body electronics, and ADAS modules where 185 °C junction operation and load dump immunity are required.
What does the "HE3" suffix mean in TPSMC47AHE3/57T?
The "HE3" suffix in TPSMC47AHE3/57T indicates RoHS-compliant construction and AEC-Q101 qualification. Per Vishay's ordering information, "HE3" denotes a version that meets both environmental compliance (lead-free, halogen-free exemptions applied) and automotive reliability standards. The "57T" denotes tape-and-reel packaging in 13-inch reels (3500 units per reel), with moisture sensitivity level (MSL) 1 and peak reflow temperature support up to 260 °C.
Can the TPSMC47AHE3/57T be used in bidirectional signal protection applications?
No, the TPSMC47AHE3/57T is unidirectional only, as stated in the Vishay datasheet. It clamps positive transients relative to its cathode terminal and conducts only in one direction. For bidirectional protection-such as on RS-485, CAN, or AC-coupled lines-the TPSMC47CAHE3/57T (bi-directional variant) must be used instead. Using TPSMC47AHE3/57T in bidirectional configurations risks failure during negative transients.
What is the maximum reverse leakage current of the TPSMC47AHE3/57T at its stand-off voltage?
The TPSMC47AHE3/57T exhibits a maximum reverse leakage current (IR) of 1.0 μA at its stand-off voltage (VWM) of 40.2 V and ambient temperature of 25 °C. At elevated junction temperatures (e.g., 150 °C), leakage increases to a maximum of 20 μA, as specified in the electrical characteristics table. This low leakage ensures minimal power loss and no measurable impact on high-impedance sensor or reference circuits powered through the protected rail.
TPSMC47AHE3/57T 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):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 23.1A
- 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)
TPSMC47AHE3/57T FAQ
1.How can I place an order for TPSMC47AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC47AHE3/57T 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 TPSMC47AHE3/57T reliable?
The price and inventory of TPSMC47AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC47AHE3/57T is usually 5 days.
3.What payment methods are accepted for TPSMC47AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC47AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC47AHE3/57T?
TPSMC47AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC47AHE3/57T 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 TPSMC47AHE3/57T?
For technical support, including TPSMC47AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC47AHE3/57T requirements.
6.How does Aetrix verify that TPSMC47AHE3/57T is sourced from the original manufacturer or authorized distributors?
All TPSMC47AHE3/57T 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 TPSMC47AHE3/57T meets industry standards.
7.What is the process for return or replacement of TPSMC47AHE3/57T?
All TPSMC47AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC47AHE3/57T, 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 TPSMC47AHE3/57T part is unused and in its original packaging.
Return procedure for TPSMC47AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC47AHE3/57T 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
