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Vishay General Semiconductor - Diodes Division 1.5KE7.5CA/54
- Part No.:
- 1.5KE7.5CA/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE7.5CA/54.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,217
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Product details
Overview
1.5KE7.5CA/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for surge 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 rating with 10/1000 µs waveform, and operates across -55 °C to +175 °C junction temperature range - used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5KE7.5CA/54 datasheet, 1.5KE7.5CA/54 pinout, 1.5KE7.5CA/54 application, or 1.5KE7.5CA/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 for robust ESD and lightning transient suppression design.
Technical Context
This device functions as a voltage-clamped shunt protector: during transients exceeding VWM, it avalanches rapidly (<1 ns response) to divert surge current away from downstream circuitry. Its bidirectional symmetry enables use on AC-coupled or floating lines without polarity concerns.
Clamping performance is defined by VC = 11.3 V at IPPM = 133 A (10/1000 µs), with low incremental surge resistance ensuring stable voltage limiting under repetitive surges. The glass-passivated junction and molded epoxy case meet UL 94 V-0 flammability and JESD22-B106 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines reliable avalanche initiation threshold for bidirectional clamping |
| VWM | 6.40 V - maximum continuous reverse working voltage before leakage exceeds 500 µA |
| VC @ IPPM | 11.3 V at 133 A - clamped voltage seen by protected circuit during 10/1000 µs surge |
| PPPM | 1500 W - peak transient power dissipation capability per single 10/1000 µs pulse |
| TJ range | -55 °C to +175 °C - enables deployment in under-hood automotive and industrial environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, critical for derating above 25 °C ambient |
| Package | JEDEC 1.5KE - axial-leaded DO-201AD outline, compatible with standard through-hole PCB assembly |
Pinout & Package
1.5KE7.5CA/54 uses the JEDEC-standard DO-201AD (Case Style 1.5KE) axial-leaded package. As a bidirectional TVS, it has no polarity marking - both leads are electrically symmetric and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (both leads) | Bidirectional avalanche junction terminal | Identical conduction behavior in either direction; no cathode band or polarity marking required |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly routed and decoupled |
| <1 ns response time | Clamps transients before sensitive ICs (e.g., CAN transceivers, ADC inputs) experience overvoltage damage |
| AEC-Q101 qualified option available | Validated for automotive applications including engine control modules and body electronics |
| UL 94 V-0 compliant molding compound | Meets flame-retardancy requirements for industrial and transportation end equipment |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector entry point to clamp fast-rising spikes before reaching signal conditioning op-amps or microcontroller ADC pins. Use Value: Maintains signal integrity below 11.3 V during 133 A surges, preventing latch-up or permanent damage to 5 V or 3.3 V front-end circuitry. | Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers against field-induced surges from motor drives or relay switching. IC Role / Device Role / Timing Role: Bidirectional clamping element across input terminals to absorb both positive and negative transients without polarity constraints. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements up to 2 kV line-to-ground. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceiver lines in networked building automation systems from induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Primary protection device mounted adjacent to connector, operating in parallel with secondary GDT or polymer PTC devices. Use Value: Limits transient voltage to ≤11.3 V within nanoseconds, preserving data integrity and preventing transceiver latch-up during multi-kV events. | Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines or HVAC blowers that couple into MCU power rails and reset logic. IC Role / Device Role / Timing Role: Low-inductance shunt clamp across motor terminals or supply rail to absorb inductive kickback energy. Use Value: Dissipates 1500 W peak energy without degradation, extending system MTBF and eliminating false resets caused by >6.4 V rail excursions. |
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 | Lower PPPM (600 W), smaller SMB package (surface-mount), VC = 11.2 V at 53.3 A | Preferred for space-constrained PCBs where 1500 W rating is not required; lacks axial lead mechanical robustness | Select when board area is limited and surge threat level is ≤IEC 61000-4-5 Level 3 |
| 1.5KE7.5CAHE3_B | Same electrical specs; AEC-Q101 qualified, HE3 suffix denotes RoHS-compliant + whisker-tested leads | Required for automotive production programs needing qualification evidence and enhanced lead finish reliability | Choose for OEM automotive designs requiring documented AEC-Q101 compliance and JESD201 Class 2 whisker resistance |
Compared with 1.5KE7.5CA/54, SMBJ7.0CA trades peak power and mounting robustness for compactness, while 1.5KE7.5CAHE3_B adds automotive qualification and enhanced lead reliability without altering clamping performance - enabling direct substitution where qualification or finish requirements differ.
Availability
1.5KE7.5CA/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O conditioning, telecom line interface, and consumer appliance motor control requiring stable component supply and full traceability.
Supply support for 1.5KE7.5CA/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 and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness, repeatable clamping, and long-term stability are mandatory.
FAQ
What is the breakdown voltage range of the 1.5KE7.5CA/54?
The 1.5KE7.5CA/54 has a guaranteed breakdown voltage (VBR) range of 7.13 V to 7.88 V at a test current of 10 mA, measured in both directions due to its bidirectional construction. This tight tolerance ensures predictable clamping onset and compatibility with 5 V or 3.3 V system rails when used with appropriate margin. The value is confirmed in Vishay's official datasheet document 88301, revision 09-Aug-2022.
Is the 1.5KE7.5CA/54 suitable for automotive applications?
Yes - the 1.5KE7.5CA/54 meets key automotive requirements: its -55 °C to +175 °C operating junction temperature range supports under-hood environments, and the AEC-Q101-qualified variant (1.5KE7.5CAHE3_B) is explicitly listed for automotive use. While the /54 suffix denotes tape-and-reel packaging and does not itself indicate qualification, the base 1.5KE7.5CA design is qualified per AEC-Q101 when ordered with HE3_B suffix. Always verify qualification status via the specific part number's ordering code.
How does the clamping voltage of the 1.5KE7.5CA/54 compare to its standoff voltage?
The 1.5KE7.5CA/54 has a maximum standoff voltage (VWM) of 6.40 V and a clamping voltage (VC) of 11.3 V at 133 A. This 4.9 V differential reflects its ability to remain non-conductive during normal operation while sharply limiting transient overvoltages - critical for protecting 5 V logic without false triggering. The ratio VC/VWM ≈ 1.77 is typical for high-power TVS diodes in the 1.5KE family.
What is the package type and lead configuration of the 1.5KE7.5CA/54?
The 1.5KE7.5CA/54 uses the JEDEC-standard DO-201AD axial-leaded package (Case Style 1.5KE), with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. The /54 in the part number indicates 13-inch paper tape and reel packaging (1400 units per reel). As a bidirectional device, it has no polarity marking - both leads are functionally identical.
Can the 1.5KE7.5CA/54 be used in parallel for higher surge handling?
No - the 1.5KE7.5CA/54 is not recommended for parallel connection due to mismatch in VBR tolerances (±5 %) and thermal coupling limitations, which cause uneven current sharing and potential thermal runaway. For higher surge ratings, select a single higher-rated device (e.g., 1.5KE10CA) or implement staged protection with upstream GDTs. Vishay explicitly advises against paralleling in Application Note AN90001.
1.5KE7.5CA/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:
- -
- 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/54 FAQ
1.How can I place an order for 1.5KE7.5CA/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE7.5CA/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/54 reliable?
The price and inventory of 1.5KE7.5CA/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/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE7.5CA/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE7.5CA/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE7.5CA/54?
1.5KE7.5CA/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE7.5CA/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/54?
For technical support, including 1.5KE7.5CA/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/54 requirements.
6.How does Aetrix verify that 1.5KE7.5CA/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE7.5CA/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/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE7.5CA/54?
All 1.5KE7.5CA/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE7.5CA/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/54 part is unused and in its original packaging.
Return procedure for 1.5KE7.5CA/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE7.5CA/54 Tags
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