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Vishay General Semiconductor - Diodes Division 1.5KE75C-E3/73
- Part No.:
- 1.5KE75C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE75C-E3/73.pdf
- Description:
- TVS DIODE 60.7VWM 109VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,476
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Product details
Overview
1.5KE75C-E3/73 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal paths. It features a 71.3 V to 78.8 V breakdown voltage (VBR), 64.1 V standoff voltage (VWM), 104 V clamping voltage (VC) at 14.6 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the 1.5KE75C-E3/73 datasheet, 1.5KE75C-E3/73 pinout, 1.5KE75C-E3/73 application, or 1.5KE75C-E3/73 equivalent, this page delivers verified electrical parameters, polarity marking guidance, thermal derating behavior, and direct alternatives for ESD/lightning transient suppression in ungrounded or AC-coupled circuits.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and leakage characteristics in forward and reverse directions. Its glass-passivated junction enables sub-nanosecond response time (<1 ns), low incremental surge resistance, and stable clamping under repetitive transients up to 0.01% duty cycle.
The device complies with JEDEC standards for transient suppression and supports soldering per J-STD-002 and JESD 22-B102. With a maximum junction temperature of +175 °C and thermal resistance RθJL = 15.4 °C/W, it sustains high-energy surges without thermal runaway when mounted on adequate copper land patterns.
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 working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 104 V - clamped voltage during 14.6 A 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - peak transient energy absorption capability for lightning or inductive switch-off events |
| IPPM | 14.6 A - maximum non-repetitive surge current supported under standard test waveform |
| TJ max. | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length, UL 94 V-0 rated epoxy body |
Pinout & Package
1.5KE75C-E3/73 uses an axial-leaded DO-201AD (Case Style 1.5KE) package with no polarity marking - consistent with bidirectional construction. Leads are matte tin-plated and compliant with JESD 22-B102 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Surge current path terminal | Identical conduction behavior in both directions; no cathode band - terminals interchangeable in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under humidity and thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Protects against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation |
| <1 ns response time | Clamps transients before sensitive ICs experience overvoltage stress - critical for CAN, RS-485, and sensor front-ends |
| RoHS-compliant, commercial grade (E3 suffix) | Meets JESD 201 Class 1A whisker resistance; suitable for consumer, industrial, and telecom applications |
| Low incremental clamping resistance | Minimizes voltage overshoot during fast-rising transients (e.g., EFT bursts), improving system immunity |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting Hall-effect and temperature sensors connected to 12 V battery rails exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, absorbing ±100 V transients within nanoseconds. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and ADC drivers by limiting voltage to ≤104 V during 14.6 A surges. | Use Scenario: Shielding 4–20 mA current loop inputs in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff protector across input terminals, conducting only when common-mode transients exceed 64.1 V. Use Value: Maintains signal integrity during 1 kV/500 A lightning-induced surges per IEC 61000-4-5, with no calibration drift post-event. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Safeguarding Ethernet PHY or DSL line drivers against induced surges on outdoor copper pairs. IC Role / Device Role / Timing Role: Primary surge shunt on differential pair, symmetrically clamping both conductors relative to chassis ground. Use Value: Enables compliance with GR-1089-CORE telecom immunity requirements without adding series impedance or signal distortion. | Use Scenario: Secondary-side overvoltage protection on 5 V/9 V USB-C adapter outputs subject to capacitor discharge events. IC Role / Device Role / Timing Role: Fast-acting clamp between VOUT and GND, triggered only during fault conditions exceeding 64.1 V. Use Value: Limits output voltage to 104 V during 1500 W transient, preventing fire hazard and enabling UL 62368-1 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | DO-214AA package (SMB), 75 V VWM, 100 V VC @ 15.7 A, 600 W PPPM | Lower peak power rating; suited for space-constrained PCBs where 1500 W is not required | Select when board area is limited and surge threat level is ≤IEC 61000-4-5 Level 3 |
| 1.5KE75CA | Same 1.5KE package, identical VBR/VC, but non-RoHS (legacy E2 suffix) and no JESD 201 whisker qualification | Not suitable for new designs requiring RoHS or automotive-grade reliability | Use only for legacy repair or cost-sensitive commercial applications without compliance mandates |
Compared with 1.5KE75C-E3/73, SMBJ75CA offers smaller footprint but reduced surge capacity, while 1.5KE75CA matches performance but lacks modern process qualifications - making 1.5KE75C-E3/73 optimal for new industrial and automotive designs requiring full RoHS and reliability compliance.
Availability
1.5KE75C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC analog input stages, and telecom line interface circuits requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1.5KE75C-E3/73 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial control, and telecommunications systems where robustness against lightning, EFT, and load dump is mandatory.
FAQ
What is the polarity configuration of the 1.5KE75C-E3/73?
The 1.5KE75C-E3/73 is a bidirectional TVS diode with symmetrical clamping behavior in both directions. It has no cathode marking - the leads are electrically identical and interchangeable in circuit layout. This configuration is essential for protecting AC-coupled or floating signal lines where polarity reversal may occur during transients.
Does the 1.5KE75C-E3/73 meet automotive qualification standards?
The 1.5KE75C-E3/73 is RoHS-compliant and qualified to JESD 201 Class 1A for whisker resistance, but it is not AEC-Q101 qualified. For automotive applications requiring AEC-Q101, Vishay offers the 1.5KE75CAHE3_B variant - the 1.5KE75C-E3/73 remains suitable for non-safety-critical automotive subsystems such as infotainment power rails or cabin sensor interfaces.
What is the maximum clamping voltage of the 1.5KE75C-E3/73 under surge conditions?
The 1.5KE75C-E3/73 exhibits a maximum clamping voltage (VC) of 104 V when subjected to its rated peak pulse current of 14.6 A using the standardized 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events.
How does the 1.5KE75C-E3/73 differ from unidirectional variants like 1.5KE75A-E3/73?
The 1.5KE75C-E3/73 is bidirectional with symmetrical VBR and VC in both polarities, whereas 1.5KE75A-E3/73 is unidirectional and features a cathode band. The "C" suffix denotes bidirectional function; unidirectional versions require correct orientation during placement and cannot protect against reverse-polarity surges without additional components.
What is the thermal resistance and power derating behavior of the 1.5KE75C-E3/73?
The 1.5KE75C-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W. Its steady-state power dissipation (PD) is rated at 6.5 W at TL = 75 °C, derating linearly to zero at 175 °C. For pulsed operation, peak power remains 1500 W only for ≤0.01% duty cycle - sustained surges require thermal design verification using Fig. 2 and Fig. 5 from the Vishay datasheet 88301.
1.5KE75C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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
1.5KE75C-E3/73 FAQ
1.How can I place an order for 1.5KE75C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE75C-E3/73 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 1.5KE75C-E3/73 reliable?
The price and inventory of 1.5KE75C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE75C-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE75C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE75C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE75C-E3/73?
1.5KE75C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE75C-E3/73 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 1.5KE75C-E3/73?
For technical support, including 1.5KE75C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE75C-E3/73 requirements.
6.How does Aetrix verify that 1.5KE75C-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE75C-E3/73 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 1.5KE75C-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE75C-E3/73?
All 1.5KE75C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE75C-E3/73, 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 1.5KE75C-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE75C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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