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Vishay General Semiconductor - Diodes Division 1.5KE7.5CA-E3/54
- Part No.:
- 1.5KE7.5CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE7.5CA-E3/54.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,845
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Product details
Overview
1.5KE7.5CA-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection on signal and power lines. It features a 7.13 V to 7.88 V breakdown voltage (VBR) at 10 mA, 6.40 V maximum standoff voltage (VWM), 11.3 V clamping voltage (VC) at 133 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates from –55 °C to +175 °C - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5KE7.5CA-E3/54 datasheet, 1.5KE7.5CA-E3/54 pinout, 1.5KE7.5CA-E3/54 application, or 1.5KE7.5CA-E3/54 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, JEDEC 1.5KE package details, thermal resistance (RθJA = 75 °C/W), and AEC-Q101-qualified alternatives - all critical for surge immunity validation in harsh-environment designs.
Technical Context
This device implements a glass-passivated silicon junction optimized for sub-nanosecond response (<1 ns) to transient overvoltages. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating signal paths without polarity constraints, supporting both differential and common-mode surge suppression.
It complies with ANSI/IEEE C62.35 surge test standards using 10/1000 µs waveform, delivers 133 A peak pulse current (IPPM) at 11.3 V clamping, and maintains low incremental surge resistance - key for limiting let-through energy to downstream ICs like CAN transceivers or ADC front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines reliable conduction onset under bidirectional transients |
| VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 500 µA |
| VC @ IPPM | 11.3 V at 133 A - clamped voltage during 1500 W surge, limiting stress on protected circuitry |
| PPPM | 1500 W (10/1000 µs) - peak surge handling capacity for lightning or ESD-like events |
| IPPM | 133 A - maximum non-repetitive surge current the device safely diverts |
| TJ range | –55 °C to +175 °C - supports operation in under-hood automotive and industrial control environments |
| RθJA | 75 °C/W - thermal resistance enabling stable power dissipation without forced cooling |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, RoHS-compliant (E3 suffix), 0.968 g unit weight, supplied in 13" paper tape and reel (1400 pcs per reel, package code 54).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry (forward bias) / low-impedance path during negative transients | One terminal of symmetrical PN junction - no marking; bidirectional operation eliminates cathode/anode distinction |
| Cathode | Current exit (forward bias) / low-impedance path during positive transients | Second terminal of symmetrical PN junction - unmarked; identical electrical role to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 1500 W peak pulse power | Handles high-energy surges (e.g., ISO 7637-2 Pulse 5a) without degradation |
| <1 ns response time | Clamps transients before sensitive logic or analog circuitry experiences overstress |
| AEC-Q101 qualified option available | Validated for automotive electronics per stress-test requirements (e.g., temperature cycling, HTRB) |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes let-through voltage, reducing risk of latch-up or gate oxide damage in MOSFETs/ICs |
Applications
| Automotive Sensor Interfaces | Industrial PLC Analog Inputs |
|---|---|
Use Scenario: Protecting LIN/CAN bus nodes and temperature/pressure sensors exposed to load dump and inductive switching noise in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair or supply rail to clamp ±100 V transients within nanoseconds. Use Value: Prevents sensor IC reset or permanent damage during ISO 16750-2 load-dump events while maintaining signal integrity below 11.3 V. | Use Scenario: Shielding 4–20 mA current-loop inputs in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Mounted directly at connector entry point to shunt fast-rising transients before reaching op-amp input stages. Use Value: Limits clamped voltage to 11.3 V, keeping input stage within absolute maximum ratings and avoiding protection diode conduction in precision amplifiers. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding Ethernet PHY or DSL line drivers against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Paired with common-mode chokes to suppress differential-mode transients on twisted-pair lines. Use Value: Delivers 133 A surge current handling with 11.3 V clamping, meeting ITU-T K.21 basic protection level for telecom infrastructure. | Use Scenario: Protecting microcontroller GPIOs and gate drivers in washing machine motor inverters from back-EMF spikes. IC Role / Device Role / Timing Role: Placed across half-bridge FET source-drain or MCU I/O pins to absorb repetitive inductive kickback. Use Value: Withstands 0.01% duty cycle repetitive surges and operates up to +175 °C ambient, matching motor enclosure thermal profiles. |
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 | 600 W PPPM, 7.0 V VWM, SMC package (smaller footprint, lower thermal mass) | Lower surge rating suits consumer-grade I/O; not recommended for automotive load-dump immunity | Select when board space is constrained and peak surge energy ≤600 W suffices |
| 1.5KE7.5CAHE3_B | AEC-Q101 qualified, identical electrical specs, same 1.5KE package, HE3 whisker-tested leads | Required for automotive production programs needing qualification documentation and enhanced lead reliability | Choose for OEM automotive designs requiring full AEC-Q101 compliance and JESD 201 Class 2 whisker resistance |
Compared with 1.5KE7.5CA-E3/54, SMBJ7.0CA offers smaller size but only 600 W surge capacity - insufficient for ISO 7637-2 testing - while 1.5KE7.5CAHE3_B matches all electrical and mechanical specs but adds AEC-Q101 validation and superior lead finish for high-reliability deployment.
Availability
1.5KE7.5CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O conditioning, telecom line interface, and appliance motor control requiring stable component supply across extended temperature ranges and high-surge environments.
Supply support for 1.5KE7.5CA-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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and ruggedized packaging.
The 1.5KE series was engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure - balancing 1500 W surge capability, tight VBR tolerance, and JEDEC-standard manufacturability.
FAQ
What is the breakdown voltage range of the 1.5KE7.5CA-E3/54?
The 1.5KE7.5CA-E3/54 has a guaranteed breakdown voltage (VBR) range of 7.13 V to 7.88 V at a test current of 10 mA, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures consistent clamping onset across production lots and supports precise overvoltage threshold design in circuits protecting 5 V or 3.3 V rails. The 1.5KE7.5CA-E3/54 achieves this via glass-passivated junction processing for stability under thermal stress.
Is the 1.5KE7.5CA-E3/54 suitable for automotive applications?
The 1.5KE7.5CA-E3/54 is RoHS-compliant and rated for –55 °C to +175 °C operation, making it suitable for under-hood and chassis-mounted automotive use. While the base E3 version is commercial-grade, its AEC-Q101-qualified variant (1.5KE7.5CAHE3_B) is explicitly validated for automotive electronics per stress-test requirements. Engineers selecting the 1.5KE7.5CA-E3/54 for automotive must verify system-level qualification needs - the 1.5KE7.5CA-E3/54 itself meets environmental specs but lacks formal AEC-Q101 certification.
How does the clamping voltage of the 1.5KE7.5CA-E3/54 compare to its standoff voltage?
The 1.5KE7.5CA-E3/54 has a maximum standoff voltage (VWM) of 6.40 V and a clamping voltage (VC) of 11.3 V at 133 A peak pulse current - yielding a clamping ratio of ~1.77. This ratio reflects the device's ability to remain non-conductive below 6.40 V while rapidly transitioning to low-impedance conduction above VBR, limiting let-through voltage to 11.3 V during 1500 W surges. That 11.3 V ceiling protects downstream 12 V-tolerant ICs without requiring additional series impedance.
What is the package type and mounting configuration for the 1.5KE7.5CA-E3/54?
1.5KE7.5CA-E3/54 uses the JEDEC-standard Case Style 1.5KE: a through-hole axial-leaded package with 0.375" (9.5 mm) lead length, molded epoxy body (UL 94 V-0), and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. It is supplied in 13" paper tape and reel (1400 pcs/reel, package code 54). No polarity marking is present - consistent with its bidirectional function - and soldering follows JESD 22-B106 (275 °C max, 10 s).
Does the 1.5KE7.5CA-E3/54 have any automotive qualification?
The 1.5KE7.5CA-E3/54 itself is a commercial-grade part with RoHS compliance (E3 suffix) and JESD 201 Class 1A whisker resistance, but it is not AEC-Q101 qualified. However, Vishay offers the functionally identical 1.5KE7.5CAHE3_B variant - same electrical specs and 1.5KE package - which carries full AEC-Q101 qualification for automotive use. For production automotive programs, engineers should specify 1.5KE7.5CAHE3_B; the 1.5KE7.5CA-E3/54 remains appropriate for industrial or telecom applications where AEC-Q101 is not mandated.
1.5KE7.5CA-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 133A
- 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
1.5KE7.5CA-E3/54 FAQ
1.How can I place an order for 1.5KE7.5CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE7.5CA-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 1.5KE7.5CA-E3/54 reliable?
The price and inventory of 1.5KE7.5CA-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 1.5KE7.5CA-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE7.5CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE7.5CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE7.5CA-E3/54?
1.5KE7.5CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE7.5CA-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 1.5KE7.5CA-E3/54?
For technical support, including 1.5KE7.5CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE7.5CA-E3/54 requirements.
6.How does Aetrix verify that 1.5KE7.5CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE7.5CA-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 1.5KE7.5CA-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE7.5CA-E3/54?
All 1.5KE7.5CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE7.5CA-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 1.5KE7.5CA-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE7.5CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE7.5CA-E3/54 Tags
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