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Vishay General Semiconductor - Diodes Division 1.5KE75-E3/54
- Part No.:
- 1.5KE75-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE75-E3/54.pdf
- Description:
- TVS DIODE 60.7VWM 109VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,807
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Product details
Overview
1.5KE75-E3/54 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 71.3 V to 78.8 V breakdown voltage (VBR), 64.1 V maximum standoff voltage (VWM), 104 V clamping voltage at 14.6 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across -55 °C to +175 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the 1.5KE75-E3/54 datasheet, 1.5KE75-E3/54 pinout, 1.5KE75-E3/54 application, or 1.5KE75-E3/54 equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, RoHS-compliant packaging details, and direct alternative part comparisons - all specific to the 1.5KE75-E3/54 unidirectional TVS configuration.
Technical Context
The 1.5KE75-E3/54 employs a glass passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its unidirectional polarity uses a cathode band marking and exhibits 3.5 V forward voltage at 100 A, with 200 A non-repetitive surge capability (8.3 ms half-sine).
Thermal design relies on a junction-to-lead thermal resistance of 15.4 °C/W and junction-to-ambient of 75 °C/W. Power dissipation is rated at 6.5 W on an infinite heatsink at TL = 75 °C, with linear derating above 25 °C ambient per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V - ensures reliable conduction onset above normal operating voltage while avoiding false triggering |
| VWM | 64.1 V - maximum continuous reverse working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 104 V - clamped voltage seen by protected circuit during 14.6 A 10/1000 µs surge |
| PPPM | 1500 W - peak transient power handling capacity under standardized surge waveform |
| IPPM | 14.6 A - maximum non-repetitive peak pulse current supported at VC = 104 V |
| TJ range | -55 °C to +175 °C - enables operation in harsh environments including automotive under-hood and industrial motor drives |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with matte tin-plated leads, UL 94 V-0 molding compound |
Pinout & Package
1.5KE75-E3/54 is housed in a DO-201AD (Case Style 1.5KE) axial-leaded package with cathode indicated by a color band. Leads are matte tin-plated and compliant with J-STD-002 and JESD 22-B102 solderability standards. The E3 suffix denotes RoHS compliance and JESD 201 Class 1A whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point in unidirectional operation | Connected to lower-potential side of protected line; conducts during reverse transient when cathode is at higher potential |
| Cathode | Reverse-biased terminal during normal operation | Marked with color band; referenced to system ground or rail return; clamps transients by avalanching at VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under repeated surge stress |
| 1500 W peak pulse power (10/1000 µs) | Supports high-energy lightning-induced surges per IEC 61000-4-5 Level 4 without degradation |
| Clamping ratio (VC/VBR) ≈ 1.35 | Minimizes voltage overshoot during clamping, reducing stress on downstream MOSFET gate oxides and logic inputs |
| Response time < 1 ns | Engages before sensitive semiconductor junctions experience destructive overvoltage |
| AEC-Q101 qualification option (HE3 variant) | Validates robustness for automotive powertrain and body electronics applications requiring extended lifetime validation |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O against inductive kickback from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed across DC bus or control line input to absorb 1500 W transients within nanoseconds. Use Value: Prevents latch-up and permanent damage to 3.3 V/5 V logic interfaces and 12 V–24 V power supply inputs during load switching events. |
Use Scenario: Safeguarding LIN bus transceivers and CAN node power rails from battery dump and load-dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS connected between VCC and GND to suppress positive-going spikes up to 104 V. Use Value: Maintains communication integrity during ISO 7637-2 Pulse 5a (load dump) events without requiring active regulation or shutdown. |
| Telecom Power Feeds | Consumer AC-DC Adapters |
Use Scenario: Input-stage protection on 48 V PoE-powered equipment exposed to induced surges on long Ethernet runs. IC Role / Device Role / Timing Role: First-line defense clamping transients before they reach DC-DC converters and PHY ICs. Use Value: Enables compliance with IEC 61000-4-5 (10/1000 µs, 2 kV) without adding bulk capacitance that degrades EMC performance. |
Use Scenario: Secondary-side output rail protection in offline SMPS supplying USB-C PD or display logic. IC Role / Device Role / Timing Role: Standoff-rated clamp (64.1 V) placed across 5 V/12 V outputs to suppress coupling from primary-side transients. Use Value: Eliminates need for redundant Zener+capacitor networks while maintaining tight output voltage regulation during surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A | DO-214AA package; 75 V VWM; 100 V VC @ 15.2 A; 600 W PPPM | Lower peak power rating limits use in high-energy industrial surges; surface-mount only | Select SMBJ75A only when board space constraints prohibit axial-leaded devices and surge energy remains below 600 W. |
| 1.5KE75AHE3_B | Same 1.5KE package and electrical specs; AEC-Q101 qualified; HE3 suffix indicates automotive-grade whisker testing | Required for automotive production where qualification traceability and extended temperature cycling are mandated | Choose 1.5KE75AHE3_B for OEM automotive programs; 1.5KE75-E3/54 remains optimal for commercial/industrial cost-sensitive designs. |
Compared with SMBJ75A, the 1.5KE75-E3/54 delivers 2.5× higher surge power handling and axial-leaded ease of through-hole prototyping; versus 1.5KE75AHE3_B, it offers identical clamping and thermal performance at lower qualification overhead for non-automotive use cases.
Availability
1.5KE75-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and consumer AC-DC adapters requiring stable component supply, consistent lead-time visibility, and full traceability from wafer lot to shipment.
Supply support for 1.5KE75-E3/54 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 diodes, rectifiers, and protection devices with emphasis on reliability, power handling, and application-specific qualification.
The 1.5KE series was engineered for high-energy transient suppression in demanding power conversion and interface circuits, targeting industrial, automotive, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What is the clamping voltage of the 1.5KE75-E3/54 under a 10/1000 µs surge?
The 1.5KE75-E3/54 clamps to a maximum of 104 V at its rated peak pulse current of 14.6 A using the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and represents the upper limit of voltage imposed on the protected circuit during surge conduction. The 1.5KE75-E3/54 maintains this clamping performance across its full operating temperature range.
Is the 1.5KE75-E3/54 RoHS compliant and lead-free?
Yes, the 1.5KE75-E3/54 carries the E3 suffix, which certifies full RoHS compliance per Directive 2011/65/EU and confirms lead-free terminations. Its matte tin-plated leads meet J-STD-002 solderability requirements and JESD 201 Class 1A whisker resistance testing, making it suitable for both commercial and industrial reflow and wave soldering processes.
How does the 1.5KE75-E3/54 differ from bidirectional variants like 1.5KE75CA?
The 1.5KE75-E3/54 is unidirectional and features a cathode band for polarity identification, whereas 1.5KE75CA is bidirectional with no polarity marking and symmetric clamping in both directions. The 1.5KE75-E3/54 has a 64.1 V standoff voltage and is intended for DC rail protection; 1.5KE75CA supports AC line or differential signal protection but is not rated beyond 220 V VBR.
What is the maximum junction temperature rating for the 1.5KE75-E3/54?
The 1.5KE75-E3/54 has a maximum junction temperature (TJ) of +175 °C and a storage temperature range of -55 °C to +175 °C. This wide thermal envelope allows deployment in under-hood automotive locations, industrial enclosures without forced cooling, and high-ambient power supply designs where thermal management is constrained.
Can the 1.5KE75-E3/54 be used in parallel to increase surge current handling?
While the 1.5KE75-E3/54 datasheet notes TVS diodes can be used in parallel to increase peak power ratings, doing so requires careful matching of VBR and thermal layout to ensure current sharing. For the 1.5KE75-E3/54, mismatched units may cause one device to dominate conduction, leading to premature failure. Derating and thermal coupling analysis are mandatory before parallel implementation.
1.5KE75-E3/54 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):
- 60.7V
- Voltage - Breakdown (Min):
- 67.5V
- Voltage - Clamping (Max) @ Ipp:
- 109V
- Current - Peak Pulse (10/1000µs):
- 13.9A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE75-E3/54 FAQ
1.How can I place an order for 1.5KE75-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE75-E3/54 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 1.5KE75-E3/54 reliable?
The price and inventory of 1.5KE75-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE75-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE75-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE75-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE75-E3/54?
1.5KE75-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE75-E3/54 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 1.5KE75-E3/54?
For technical support, including 1.5KE75-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE75-E3/54 requirements.
6.How does Aetrix verify that 1.5KE75-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE75-E3/54 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 1.5KE75-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE75-E3/54?
All 1.5KE75-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE75-E3/54, 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 1.5KE75-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE75-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE75-E3/54 Tags
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