My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC47AHE3/57T
- Part No.:
- 1.5SMC47AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC47AHE3/57T.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,536
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC47AHE3/57T 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 with 1500 W peak pulse power (10/1000 μs), 47 V breakdown voltage (VBR = 44.7–49.4 V at 1 mA), and 64.8 V maximum clamping voltage (VC) at 23.1 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power supply interfaces.
For engineers reviewing the 1.5SMC47AHE3/57T datasheet, 1.5SMC47AHE3/57T pinout, 1.5SMC47AHE3/57T application, or 1.5SMC47AHE3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 40.2 V stand-off voltage (VWM), <1.0 μA reverse leakage at VWM, and compatibility with automated SMT placement on standard PCB pads.
Technical Context
This TVS diode operates as a clamping device that transitions from high-impedance to low-impedance state within picoseconds upon detecting overvoltage transients exceeding its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance for consistent clamping performance across repetitive surges.
The 1.5SMC47AHE3/57T is rated for 150 °C maximum junction temperature, features MSL Level 1 moisture sensitivity, and meets JESD201 Class 2 whisker resistance. Its thermal resistance (RθJA = 75 °C/W) assumes mounting on 8.0 mm × 8.0 mm copper pads - critical for sustaining 1500 W pulse power without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V at IT = 1 mA - defines precise overvoltage triggering threshold for reliable circuit protection |
| VWM | 40.2 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 64.8 V at 23.1 A - clamped voltage during 1500 W transient, limiting downstream stress |
| PPPM | 1500 W (10/1000 μs waveform) - peak surge energy absorption capability for lightning and inductive switching events |
| IFSM | 200 A (8.3 ms half-sine) - forward surge rating confirming robustness against accidental polarity reversal |
| TJ max. | +150 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 0.320" x 0.246" footprint and matte tin-plated leads |
Pinout & Package
SMC (DO-214AB) package: low-profile, rectangular body with cathode band marking on one end; terminals are matte tin-plated for solderability per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to system ground or lower-potential rail when used in unidirectional clamp configuration |
| Cathode | Current exit point in forward bias; marked with band | Connected to protected line (e.g., 48 V rail or sensor input) - reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| 1500 W peak pulse power | Withstands repeated 10/1000 μs transients up to 23.1 A without degradation - suitable for ISO 7637-2 Pulse 5a/b compliance |
| Glass passivated junction | Ensures stable VBR drift <0.1%/°C and long-term parameter consistency in humid or thermally cycled environments |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking - reduces manufacturing complexity and cost |
| RoHS-compliant & halogen-free option | HE3 suffix indicates RoHS-compliant construction; HM3 variant adds halogen-free molding compound for stringent environmental compliance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 48 V battery-connected ECUs from load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 40.2 V. Use Value: Limits peak voltage to 64.8 V during 1500 W transients, preventing damage to 60 V-rated DC-DC converters and microcontrollers. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) TVS mounted directly at connector interface to suppress ESD and cable-induced noise. Use Value: Sub-1 ns response time and 1.0 μA leakage at 40.2 V preserve signal integrity while enabling direct integration with 12-bit ADC front-ends. |
| Telecom DC Power Input Stage | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered network switches against induced surges on 48 V DC input derived from PSE. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of DC-DC regulation, coordinated with fuse and MOV staging. Use Value: 23.1 A IPPM rating supports coordination with 30 A fast-blow fuses, ensuring selective clearing without TVS failure. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Unidirectional TVS across motor terminals, referenced to local ground to absorb inductive kickback. Use Value: 200 A IFSM rating tolerates repeated motor stall conditions without parametric shift or bond-wire failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ47A-E3/52 | Same VBR range (44.7–49.4 V), but SMB package (DO-214AA); 600 W PPPM, lower IPPM (11.5 A) | Lower surge capacity suits space-constrained consumer electronics where 1500 W is not required | Select when board area is limited and peak surge energy is ≤600 W - not drop-in compatible due to smaller pad layout |
| 1.5KE47A | Through-hole DO-201 package; identical electrical specs but higher RθJA (100 °C/W) and no AEC-Q101 qualification | Used in legacy industrial power supplies where manual assembly or wave soldering remains standard | Choose only for non-automotive, non-SMT designs requiring same clamping behavior but accepting larger footprint and no automotive qualification |
Compared with SMBJ47A-E3/52 and 1.5KE47A, the 1.5SMC47AHE3/57T uniquely combines AEC-Q101 qualification, 1500 W surge rating, and SMC package - making it the sole choice for new automotive SMT designs requiring full ISO 16750-2 compliance without derating or secondary protection stages.
Availability
1.5SMC47AHE3/57T is available at Aetrix Electronics and suitable for automotive ECU power rails, industrial sensor interfaces, telecom DC inputs, and appliance motor drive circuits requiring stable component supply with guaranteed AEC-Q101 conformance and SMT manufacturability.
Supply support for 1.5SMC47AHE3/57T 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was developed to deliver high-power transient suppression in compact surface-mount packages for automotive, industrial, and telecom systems where space, thermal performance, and AEC-Q101 compliance are mandatory.
FAQ
What is the exact breakdown voltage range for 1.5SMC47AHE3/57T?
The 1.5SMC47AHE3/57T has a specified breakdown voltage (VBR) range of 44.7 V to 49.4 V at a test current of 1 mA, measured per ANSI/IEEE C62.35. This ±5% tolerance ensures predictable clamping onset across production lots and temperature extremes from –65 °C to +150 °C.
Is 1.5SMC47AHE3/57T qualified for automotive use?
Yes, the HE3 suffix confirms that 1.5SMC47AHE3/57T is AEC-Q101 qualified. It has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114, making it suitable for under-hood and infotainment applications requiring automotive-grade reliability.
What does the "/57T" suffix indicate in 1.5SMC47AHE3/57T?
The "/57T" denotes packaging: 7-inch diameter plastic tape-and-reel with 850 units per reel. This format is optimized for high-speed pick-and-place machines and complies with EIA-481-D standards, supporting automated SMT assembly without manual handling or static risk.
How does the clamping voltage of 1.5SMC47AHE3/57T compare to its stand-off voltage?
The 1.5SMC47AHE3/57T has a stand-off voltage (VWM) of 40.2 V and a maximum clamping voltage (VC) of 64.8 V at 23.1 A. This 24.6 V differential ensures sufficient margin between normal operation and protective action, preventing false triggering while limiting transient overshoot to safe levels for downstream 60 V-rated components.
Can 1.5SMC47AHE3/57T be used in bidirectional configurations?
No - the "A" suffix designates unidirectional operation only. For bidirectional protection, Vishay offers the 1.5SMC47CA variant. Using 1.5SMC47AHE3/57T in reverse-biased mode risks permanent junction damage due to lack of symmetrical avalanche structure; polarity must be observed during PCB layout.
1.5SMC47AHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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 ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC47AHE3/57T FAQ
1.How can I place an order for 1.5SMC47AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC47AHE3/57T 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 1.5SMC47AHE3/57T reliable?
The price and inventory of 1.5SMC47AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC47AHE3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC47AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC47AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC47AHE3/57T?
1.5SMC47AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC47AHE3/57T 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 1.5SMC47AHE3/57T?
For technical support, including 1.5SMC47AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC47AHE3/57T requirements.
6.How does Aetrix verify that 1.5SMC47AHE3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC47AHE3/57T 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 1.5SMC47AHE3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC47AHE3/57T?
All 1.5SMC47AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC47AHE3/57T, 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 1.5SMC47AHE3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC47AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC47AHE3/57T 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
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 …
