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Vishay General Semiconductor - Diodes Division 1.5KE7.5C-E3/73
- Part No.:
- 1.5KE7.5C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE7.5C-E3/73.pdf
- Description:
- TVS DIODE 6.05VWM 11.7VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,236
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Product details
Overview
1.5KE7.5C-E3/73 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for clamping inductive switching transients and lightning-induced surges on signal and power lines. It features a 7.13 V to 7.88 V breakdown voltage (VBR) at 10 mA, 6.40 V standoff voltage (VWM), 11.3 V maximum clamping voltage (VC) at 133 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the 1.5KE7.5C-E3/73 datasheet, 1.5KE7.5C-E3/73 pinout, 1.5KE7.5C-E3/73 application, or 1.5KE7.5C-E3/73 equivalent, this part serves as a RoHS-compliant, commercial-grade bidirectional TVS with verified clamping performance, thermal robustness up to 175 °C junction temperature, and JEDEC-standard 1.5KE package compatibility for board-level surge protection design.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, enabling direct placement across AC-coupled or floating signal lines without polarity concerns. Its glass-passivated junction delivers sub-nanosecond response time (<1 ns), low incremental surge resistance, and stable clamping under repetitive 10/1000 µs transients at 0.01% duty cycle.
The device meets UL 497B recognition (QVGQ2) and complies with JESD 22-B106 solderability (275 °C, 10 s). With a 75 °C/W junction-to-ambient thermal resistance and 15.4 °C/W junction-to-lead resistance, it supports reliable operation under sustained surge conditions when mounted on standard PCB copper areas.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines precise voltage threshold where clamping initiates in either direction |
| VWM | 6.40 V - maximum continuous reverse operating voltage before leakage exceeds 500 µA |
| VC @ IPPM | 11.3 V at 133 A - peak clamped voltage during 1500 W transient, limiting stress on downstream components |
| PPPM | 1500 W - peak pulse power handling capability with 10/1000 µs waveform, critical for lightning and EFT immunity |
| TJ max | +175 °C - enables use in under-hood automotive or high-temperature industrial environments without derating |
| ID @ VWM | 500 µA - low leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| Package | DO-201AD (Case Style 1.5KE) - industry-standard axial leaded package with 0.375" lead length, UL 94 V-0 rated epoxy body |
Pinout & Package
1.5KE7.5C-E3/73 uses a two-terminal DO-201AD (Case Style 1.5KE) axial package with no polarity marking - consistent with its bidirectional function. Leads are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path terminal | Either end connects to protected line; no cathode band - enables flexible placement across differential or floating nodes |
| Leads (anode & cathode) | Thermal and electrical interface | 0.375" (9.5 mm) lead length optimized for through-hole mounting and heat dissipation into PCB copper |
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) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation when properly mounted |
| Sub-nanosecond response time | Clamps transients before sensitive ICs experience overvoltage - critical for protecting high-speed sensor interfaces |
| UL 497B recognized (QVGQ2) | Validated for telecom and industrial surge protection applications requiring third-party safety certification |
| RoHS-compliant, commercial grade | E3 suffix confirms compliance with JESD 201 Class 1A whisker test and EU RoHS Directive 2011/65/EU |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across signal pair or supply rail to limit transient excursions. Use Value: Clamps 133 A surges to ≤11.3 V, preventing latch-up or gate oxide damage in 3.3 V/5 V automotive ICs. |
Use Scenario: Shielding digital input modules from inductive kickback of solenoids, relays, and motor contactors in factory automation. IC Role / Device Role / Timing Role: Primary surge suppression device at field-side connector interface, upstream of optocoupler or level-shifter. Use Value: Absorbs 1500 W transients without failure, maintaining system uptime and reducing field return rates. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-side surge protection on Ethernet PHY or RS-485 transceiver lines exposed to induced lightning per ITU-T K.20/21. IC Role / Device Role / Timing Role: Fast-acting shunt protector between differential pair and ground, minimizing signal distortion. Use Value: Symmetric clamping preserves common-mode rejection ratio (CMRR) while limiting differential overvoltage to safe levels. |
Use Scenario: Input-stage transient suppression on AC-DC adapter primary side, guarding bridge rectifier and controller IC. IC Role / Device Role / Timing Role: Standoff-rated clamp across bulk capacitor or rectifier output to absorb line surge energy. Use Value: Withstands repeated 10/1000 µs surges up to 1500 W, extending adapter lifetime in regions with unstable grid quality. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0CA | DO-214AA package, lower 600 W PPPM, 11.5 V VC @ 53.3 A, tighter VBR tolerance (5% vs. 1.5KE's 5–10%) | Suitable for space-constrained PCBs but requires higher parallel count for same energy absorption | Select SMBJ7.0CA only when footprint reduction outweighs need for single-device 1500 W capability |
| 1.5KE7.5CA | Same 1.5KE package, identical electrical specs, but HE3 suffix denotes AEC-Q101 qualification (not present in -E3/73) | Required for automotive front-end modules; not necessary for commercial industrial or consumer use | Choose 1.5KE7.5CA if AEC-Q101 compliance is mandated; otherwise 1.5KE7.5C-E3/73 satisfies all commercial requirements |
Compared with SMBJ7.0CA and 1.5KE7.5CA, the 1.5KE7.5C-E3/73 offers full 1500 W surge handling in a mature, cost-optimized axial package without automotive qualification overhead - making it ideal for high-reliability commercial power and signal line protection where board space permits DO-201AD mounting.
Availability
1.5KE7.5C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply, long-lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for 1.5KE7.5C-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where robustness against lightning, EFT, and load dump events is non-negotiable.
FAQ
What is the breakdown voltage range of the 1.5KE7.5C-E3/73?
The 1.5KE7.5C-E3/73 has a guaranteed breakdown voltage (VBR) range of 7.13 V to 7.88 V at 10 mA test current, measured in both directions due to its bidirectional construction. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes from –55 °C to +175 °C.
Is the 1.5KE7.5C-E3/73 suitable for automotive applications?
The 1.5KE7.5C-E3/73 is a commercial-grade part and not AEC-Q101 qualified. For automotive use, Vishay offers the 1.5KE7.5CAHE3_B variant with AEC-Q101 qualification. The 1.5KE7.5C-E3/73 remains appropriate for non-safety-critical automotive subsystems where qualification is not mandated by OEM specifications.
How does the 1.5KE7.5C-E3/73 differ from unidirectional 1.5KE7.5A-E3 variants?
The 1.5KE7.5C-E3/73 is bidirectional with symmetrical clamping in both polarities and no cathode marking, whereas the 1.5KE7.5A-E3 is unidirectional, features a cathode band, and conducts forward current only in one direction. Their VBR, VWM, and VC values differ slightly due to internal structure - e.g., 1.5KE7.5A has VWM = 6.40 V but VF = 3.5 V at 100 A, which does not apply to the C version.
What is the maximum clamping voltage of the 1.5KE7.5C-E3/73 under surge conditions?
The 1.5KE7.5C-E3/73 clamps to a maximum of 11.3 V when subjected to its rated peak pulse current of 133 A (10/1000 µs waveform). This value is measured across the device terminals during transient conduction and represents the upper voltage limit imposed on protected circuitry during worst-case surge events.
Does the 1.5KE7.5C-E3/73 require heatsinking for standard operation?
No external heatsink is required for single-event surge suppression. The 1.5KE7.5C-E3/73 relies on PCB copper area and lead conduction for thermal management, with RθJA = 75 °C/W and RθJL = 15.4 °C/W. For repetitive surges or elevated ambient temperatures, increasing copper pad area or using thermal vias improves sustained reliability - but the 1.5KE7.5C-E3/73 itself contains no integrated heatsink.
1.5KE7.5C-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):
- 6.05V
- Voltage - Breakdown (Min):
- 6.75V
- Voltage - Clamping (Max) @ Ipp:
- 11.7V
- Current - Peak Pulse (10/1000µs):
- 128A
- 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
1.5KE7.5C-E3/73 FAQ
1.How can I place an order for 1.5KE7.5C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE7.5C-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 1.5KE7.5C-E3/73 reliable?
The price and inventory of 1.5KE7.5C-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 1.5KE7.5C-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE7.5C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE7.5C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE7.5C-E3/73?
1.5KE7.5C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE7.5C-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 1.5KE7.5C-E3/73?
For technical support, including 1.5KE7.5C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE7.5C-E3/73 requirements.
6.How does Aetrix verify that 1.5KE7.5C-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE7.5C-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 1.5KE7.5C-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE7.5C-E3/73?
All 1.5KE7.5C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE7.5C-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 1.5KE7.5C-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE7.5C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE7.5C-E3/73 Tags
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