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Vishay General Semiconductor - Diodes Division 1.5KE47HE3/54
- Part No.:
- 1.5KE47HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE47HE3/54.pdf
- Description:
- TVS DIODE 38.1VWM 67.8VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,880
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Product details
Overview
1.5KE47HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 47 V breakdown voltage (VBR = 44.7–49.4 V at 1 mA), 40.2 V maximum standoff voltage (VWM), 64.8 V clamping voltage (VC) at 23.1 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1.5KE47HE3/54 datasheet, 1.5KE47HE3/54 pinout, 1.5KE47HE3/54 application, or 1.5KE47HE3/54 equivalent, this part delivers verified AEC-Q101 qualification, RoHS-compliant matte tin-plated leads, JESD 201 Class 2 whisker resistance, and UL 94 V-0 molded epoxy packaging - critical for high-reliability automotive and industrial surge protection design-in.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt device triggered by transient overvoltage events exceeding its VWM threshold. Its glass-passivated junction enables sub-nanosecond response time (<1 ns), low incremental surge resistance, and stable clamping performance under repetitive 10/1000 µs pulses at 0.01% duty cycle.
Thermal design relies on RθJL = 15.4 °C/W (junction-to-lead) and RθJA = 75 °C/W (junction-to-ambient), supporting operation from –55 °C to +175 °C. The 1.5KE47HE3/54 is rated for 200 A non-repetitive forward surge current (IFSM) and exhibits 3.5 V max forward voltage at 100 A - confirming suitability for high-energy transient suppression without forward conduction degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V at 1 mA - defines precise voltage threshold where clamping initiates reliably across temperature and unit variation |
| VWM | 40.2 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA; sets safe DC rail margin |
| VC @ IPPM | 64.8 V at 23.1 A - clamped voltage during full 1500 W transient; determines protected circuit's maximum stress level |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform; validates robustness against lightning-induced surges |
| IFSM | 200 A - single half-sine surge current rating (8.3 ms); supports high-current inductive switch-off protection |
| TJ max | +175 °C - maximum junction temperature; enables use in under-hood automotive and high-ambient industrial environments |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length; compatible with through-hole PCB assembly and manual rework |
Pinout & Package
1.5KE47HE3/54 uses the standard DO-201AD (Case Style 1.5KE) axial-leaded package: cathode marked with color band; leads are matte tin-plated per J-STD-002 and JESD 22-B102; body meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to system ground or low-impedance return when used in unidirectional clamp configuration |
| Cathode | Clamping node / protected line connection | Connected directly to line being protected (e.g., 48 V rail input); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS power domains |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under high-temperature/humidity stress - critical for >15-year automotive service life |
| 1500 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surge (4 kV/2 Ω) without degradation when properly mounted |
| UL 94 V-0 epoxy molding | Self-extinguishing encapsulation prevents flame propagation in enclosed enclosures and battery systems |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs from load dump transients up to 120 V and ISO 7637-2 Pulse 5a/b. IC Role / Device Role / Timing Role: Primary shunt clamping device placed at main power entry point; responds within <1 ns to limit voltage excursion. Use Value: Clamps to 64.8 V at 23.1 A, ensuring downstream DC-DC converters and microcontrollers remain below absolute maximum ratings. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC modules exposed to relay coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and ground; absorbs inductive kickback before it reaches ADC input. Use Value: Limits transient voltage to ≤64.8 V while maintaining <1 µA leakage at 40.2 V - preserving sensor accuracy and offset stability. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding PoE-powered equipment front-end from induced surges on outdoor Ethernet cabling. IC Role / Device Role / Timing Role: Secondary overvoltage clamp after primary isolation; handles residual common-mode energy coupled onto DC bias lines. Use Value: Withstands 1500 W pulses without parametric shift, enabling compliance with GR-1089-CORE Section 4.5.2.2 surge immunity requirements. | Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp back-EMF during PWM switching transitions. Use Value: Absorbs 200 A surge current (IFSM) without failure, preventing MOSFET avalanche breakdown and extending driver IC lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43A | DO-214AA package; lower 600 W PPPM; VC = 69.4 V @ 8.7 A; 3.5 V forward voltage same | Surface-mount only; unsuitable for high-power through-hole designs or manual repair scenarios | Select when board space is constrained and surge energy is ≤600 W; verify thermal pad layout for SMB footprint |
| 1.5KE47A-E3/54 | Same electrical specs and DO-201AD package; lacks AEC-Q101 qualification and JESD 201 Class 2 whisker testing | Restricted to commercial-grade applications; not approved for automotive OEM production | Choose only for cost-sensitive non-automotive designs where qualification traceability is not required |
Compared with 1.5KE47HE3/54, SMBJ43A offers smaller footprint but reduced surge capacity and no automotive qualification, while 1.5KE47A-E3/54 matches form/fit/function but omits critical reliability certifications needed for automotive and industrial deployments.
Availability
1.5KE47HE3/54 is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial sensor interfaces, telecom DC feeds, and consumer appliance motor drives requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE47HE3/54 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - emphasizing AEC-Q101 qualification, robust thermal performance, and long-term parametric stability under surge stress.
FAQ
What is the breakdown voltage range of the 1.5KE47HE3/54?
The 1.5KE47HE3/54 has a guaranteed breakdown voltage (VBR) range of 44.7 V to 49.4 V at 1 mA test current, measured per JEDEC standards. This tight tolerance ensures consistent clamping behavior across production lots and temperature extremes, making the 1.5KE47HE3/54 suitable for precision overvoltage protection where margin control is critical.
Is the 1.5KE47HE3/54 qualified for automotive applications?
Yes, the 1.5KE47HE3/54 is AEC-Q101 qualified, as confirmed in Vishay document 88301 revision 09-Aug-2022. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating the 1.5KE47HE3/54 for under-hood and chassis-mounted automotive electronics.
What is the clamping voltage of the 1.5KE47HE3/54 at its rated peak pulse current?
The 1.5KE47HE3/54 clamps to a maximum of 64.8 V at its rated peak pulse current of 23.1 A (10/1000 µs waveform). This value is specified in the Electrical Characteristics table and defines the upper voltage limit imposed on protected circuits during worst-case surge events - a key parameter for verifying downstream component safety margins.
Does the 1.5KE47HE3/54 have RoHS and lead-free compliance?
Yes, the 1.5KE47HE3/54 carries the "E3" suffix indicating full RoHS compliance per EU Directive 2011/65/EU and exemption 7a. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the device is manufactured without lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE - fully documented in Vishay's material declaration for 1.5KE47HE3/54.
What package type does the 1.5KE47HE3/54 use, and what are its mechanical dimensions?
The 1.5KE47HE3/54 uses the DO-201AD package (Case Style 1.5KE), with axial leads spaced 0.375" (9.5 mm) apart and overall body dimensions of 0.210" × 0.285" (5.3 mm × 7.2 mm). The molded epoxy case meets UL 94 V-0 flammability rating, and lead diameter is 0.042" (1.07 mm), as specified in Vishay's package outline drawing for 1.5KE47HE3/54.
1.5KE47HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 38.1V
- Voltage - Breakdown (Min):
- 42.3V
- Voltage - Clamping (Max) @ Ipp:
- 67.8V
- Current - Peak Pulse (10/1000µs):
- 22.1A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE47HE3/54 FAQ
1.How can I place an order for 1.5KE47HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE47HE3/54 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 1.5KE47HE3/54 reliable?
The price and inventory of 1.5KE47HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE47HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE47HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE47HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE47HE3/54?
1.5KE47HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE47HE3/54 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 1.5KE47HE3/54?
For technical support, including 1.5KE47HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE47HE3/54 requirements.
6.How does Aetrix verify that 1.5KE47HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE47HE3/54 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 1.5KE47HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE47HE3/54?
All 1.5KE47HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE47HE3/54, 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 1.5KE47HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE47HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE47HE3/54 Tags
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