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Vishay General Semiconductor - Diodes Division 1.5KE7.5CAHE3_B/C
- Part No.:
- 1.5KE7.5CAHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE7.5CAHE3_B/C.pdf
- Description:
- 1.5KW,7.5V 5%,BIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,972
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Product details
Overview
1.5KE7.5CAHE3_B/C from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients 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), 1500 W peak pulse power (10/1000 µs), 11.3 V clamping voltage at rated peak current, and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs, ICs, and sensor interfaces in automotive and industrial power rails.
For engineers reviewing the 1.5KE7.5CAHE3_B/C datasheet, 1.5KE7.5CAHE3_B/C pinout, 1.5KE7.5CAHE3_B/C application, or 1.5KE7.5CAHE3_B/C equivalent, this part delivers verified bidirectional surge suppression with AEC-Q101 qualification, RoHS-compliant HE3 packaging, and validated clamping performance under 10/1000 µs lightning-surge waveforms.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating signal paths without polarity sensitivity.
It complies with JEDEC standards for transient suppressors and supports repetitive surge duty cycles up to 0.01 % at TA = 25 °C. Thermal resistance is specified as RθJL = 15.4 °C/W (junction-to-lead), enabling direct PCB trace heat sinking without external heatsinks for moderate surge repetition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines precise clamping onset threshold for overvoltage detection |
| VWM | 6.40 V - maximum continuous working voltage before leakage exceeds 500 µA |
| VC @ IPPM | 11.3 V - clamped voltage during 1500 W 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - peak surge power handling capability per single 10/1000 µs pulse |
| IPPM | 133 A - peak pulse current corresponding to 1500 W clamping at 11.3 V |
| TJ range | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with matte tin-plated leads; UL 94 V-0 rated; lead length 0.375" (9.5 mm); RoHS-compliant HE3 suffix denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | AC-coupled transient clamp terminals | No polarity marking; symmetric conduction in both directions - suitable for differential or floating bus protection |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5 %) and long-term leakage stability under thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) in properly designed front-end circuits |
| Clamping response time < 1 ns | Protects nanosecond-scale logic and high-speed interface ICs before damage occurs |
| AEC-Q101 qualified (HE3 variant) | Validated for automotive powertrain and body electronics per stress test requirements (HTGB, TCT, H3TRB) |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving margin for 3.3 V/5 V rail protection |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Suppresses load-dump and jump-start transients on 12 V battery-fed ECUs and lighting modules. IC Role / Device Role / Timing Role: Bidirectional clamping device placed between power input and DC/DC converter input stage. Use Value: Limits voltage to ≤11.3 V during 133 A surges, preventing overvoltage shutdown or latch-up of downstream PMICs. |
Use Scenario: Shields analog outputs of pressure/temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: Low-capacitance TVS installed at connector entry point to absorb ESD and inductive switching noise. Use Value: Clamps ±15 kV contact ESD (IEC 61000-4-2) without degrading 0–5 V sensor signal integrity or adding measurable offset. |
| Telecom Line Interface Protection | Consumer USB Port Surge Protection |
Use Scenario: Protects RS-485 transceivers on remote terminal units exposed to induced lightning on long field wiring. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential A/B lines upstream of transceiver inputs. Use Value: Maintains signal common-mode range while clamping common-mode surges up to 1500 W, preserving data integrity. |
Use Scenario: Guards VBUS and D+/D– lines in wall adapters and portable chargers against AC mains coupling events. IC Role / Device Role / Timing Role: Primary-level surge suppressor mounted at USB Type-A receptacle PCB entry point. Use Value: Withstands repeated 10/1000 µs surges up to 133 A without parametric shift, ensuring multi-year field reliability. |
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 (vs. 1.5KE axial), VC = 12.0 V @ 53.3 A | Better suited for space-constrained PCBs with lower-energy surge requirements (IEC 61000-4-5 Level 2) | Select when board area is critical and peak surge energy does not exceed 600 W; verify thermal derating for repeated pulses. |
| 1.5SMC7.0CA | Same PPPM (1500 W) but SMC package (surface-mount), VBR = 7.22–7.98 V, VC = 11.3 V @ 133 A | Enables automated assembly and higher-density layouts; identical clamping performance but no axial through-hole option | Choose for reflow-compatible designs requiring same electrical specs; confirm pad layout matches SMC footprint and thermal relief. |
Compared with 1.5KE7.5CAHE3_B/C, SMBJ7.0CA trades surge robustness for compactness, while 1.5SMC7.0CA retains full 1500 W capability in surface-mount form-neither is pin-compatible due to differing packages, but both serve overlapping protection roles with distinct mechanical integration paths.
Availability
1.5KE7.5CAHE3_B/C is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom line protection, and consumer USB surge mitigation requiring stable component supply and AEC-Q101 assurance.
Supply support for 1.5KE7.5CAHE3_B/C 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, emphasizing robust clamping, AEC-Q101 compliance, and stable parametric performance across extended temperature ranges.
FAQ
What is the breakdown voltage tolerance for 1.5KE7.5CAHE3_B/C?
The 1.5KE7.5CAHE3_B/C has a specified breakdown voltage range of 7.13 V to 7.88 V at 10 mA test current, representing a ±5 % tolerance around the nominal 7.5 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable overvoltage threshold design in safety-critical circuits using the 1.5KE7.5CAHE3_B/C.
Is 1.5KE7.5CAHE3_B/C suitable for automotive applications?
Yes, the 1.5KE7.5CAHE3_B/C is AEC-Q101 qualified (denoted by the HE3 suffix) and tested for automotive-grade reliability, including high-temperature reverse bias, temperature cycling, and humidity testing. Its –55 °C to +175 °C operating range and validated surge performance make it appropriate for engine control units, body electronics, and ADAS power supplies using the 1.5KE7.5CAHE3_B/C.
How does the bidirectional configuration of 1.5KE7.5CAHE3_B/C affect its use in circuit design?
The bidirectional configuration of 1.5KE7.5CAHE3_B/C allows symmetrical clamping on AC-coupled or floating nodes without cathode/anode orientation concerns. Unlike unidirectional variants, it requires no polarity marking and protects both positive and negative transients equally - ideal for RS-485 buses, transformer-coupled interfaces, and dual-rail sensor outputs where the 1.5KE7.5CAHE3_B/C is deployed across differential pairs.
What is the maximum clamping voltage of 1.5KE7.5CAHE3_B/C under surge conditions?
The maximum clamping voltage (VC) of the 1.5KE7.5CAHE3_B/C is 11.3 V when subjected to its rated peak pulse current of 133 A (corresponding to 1500 W with a 10/1000 µs waveform). This value is measured per JEDEC standard test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case surge events involving the 1.5KE7.5CAHE3_B/C.
Does 1.5KE7.5CAHE3_B/C require a heatsink for standard operation?
No, the 1.5KE7.5CAHE3_B/C does not require an external heatsink under typical single-pulse or low-duty-cycle surge conditions. Its thermal resistance junction-to-lead (RθJL) is 15.4 °C/W, and the 1.5KE package's axial leads provide sufficient conduction path for heat dissipation into PCB copper. Heatsinking becomes relevant only for repetitive surges above 0.01 % duty cycle, where thermal accumulation must be modeled for the 1.5KE7.5CAHE3_B/C.
1.5KE7.5CAHE3_B/C 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):
- 139A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE7.5CAHE3_B/C FAQ
1.How can I place an order for 1.5KE7.5CAHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE7.5CAHE3_B/C 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 1.5KE7.5CAHE3_B/C reliable?
The price and inventory of 1.5KE7.5CAHE3_B/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE7.5CAHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE7.5CAHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE7.5CAHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE7.5CAHE3_B/C?
1.5KE7.5CAHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE7.5CAHE3_B/C 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 1.5KE7.5CAHE3_B/C?
For technical support, including 1.5KE7.5CAHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE7.5CAHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE7.5CAHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE7.5CAHE3_B/C 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 1.5KE7.5CAHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE7.5CAHE3_B/C?
All 1.5KE7.5CAHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE7.5CAHE3_B/C, 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 1.5KE7.5CAHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE7.5CAHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE7.5CAHE3_B/C Tags
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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