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Vishay General Semiconductor - Diodes Division 1.5KE75CAHE3_A/C
- Part No.:
- 1.5KE75CAHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE75CAHE3_A/C.pdf
- Description:
- TVS DIODE 64.1VWM 104VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,480
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Product details
Overview
1.5KE75CAHE3_A/C from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 71.3 V to 78.8 V breakdown voltage (VBR), 64.1 V standoff voltage (VWM), 1500 W peak pulse power (10/1000 µs), clamping voltage of 104 V at 14.6 A, and operates across –55 °C to +175 °C. It is used to protect MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching surges.
For engineers reviewing the 1.5KE75CAHE3_A/C datasheet, 1.5KE75CAHE3_A/C pinout, 1.5KE75CAHE3_A/C application, or 1.5KE75CAHE3_A/C equivalent, this device serves as a high-reliability, AEC-Q101-qualified TVS for automotive, industrial, and telecom surge protection where fast clamping (<1 ns), low incremental surge resistance, and bidirectional symmetry are required.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical electrical characteristics forward and reverse - enabling simplified layout and elimination of polarity marking on PCBs. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1 µA at VWM), while the 10/1000 µs waveform rating reflects real-world surge immunity per IEC 61000-4-5 Level 4.
The device uses a DO-201AD (Case Style 1.5KE) package with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. Thermal resistance is 15.4 °C/W (junction-to-lead), supporting high-energy transient absorption without external heatsinking under typical mounting conditions.
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; defines safe DC/AC operating margin. |
| VC @ IPPM | 104 V - Clamped voltage during 14.6 A 10/1000 µs surge; limits stress on downstream components. |
| PPPM | 1500 W - Peak pulse power handling capability; supports IEC 61000-4-5 4 kV/2 Ω combination wave testing. |
| IPPM | 14.6 A - Peak surge current supported at rated clamping voltage; determines minimum series impedance needed. |
| TJ max. | +175 °C - Enables operation in under-hood automotive or high-ambient industrial environments without derating. |
| Leakage @ VWM | <1 µA - Minimizes standby power loss and avoids interference in high-impedance sensor or bias networks. |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), molded epoxy body with UL 94 V-0 flammability rating; matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No polarity marking; either lead functions identically as line or return path - simplifies routing and eliminates orientation errors. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Stable VBR with ±5% tolerance and <0.1%/°C temperature coefficient - ensures consistent clamping across temperature. |
| 1500 W peak pulse power (10/1000 µs) | Withstands 4 kV IEC 61000-4-5 surge events without degradation when paired with appropriate series impedance. |
| Clamping response time <1 ns | Protects sensitive CMOS inputs and gate drivers before voltage overshoot damages oxide layers. |
| AEC-Q101 qualified | Validated for automotive powertrain, body control, and ADAS modules requiring zero-failure reliability under thermal cycling and humidity. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 5a), improving system-level ESD immunity. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump (ISO 16750-2) and alternator transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across input rails upstream of DC-DC converters and LDOs. Use Value: Limits rail voltage to ≤104 V during 14.6 A surges, preventing latch-up or burnout in downstream PMICs and microcontrollers. |
Use Scenario: Shielding 4–20 mA or CAN FD sensor nodes from induced lightning on long field wiring. IC Role / Device Role / Timing Role: Primary surge shunt on differential analog/signal lines, mounted adjacent to connector entry point. Use Value: Sub-1 ns response clamps transients before they propagate into precision ADC front-ends or isolated signal conditioners. |
| Telecom AC/DC Power Input Stage | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding offline SMPS primary-side rectifiers and controllers against AC mains surges (IEC 61000-4-5). IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor input, absorbing line-to-line and line-to-ground transients. Use Value: 1500 W rating handles repetitive 6 kV/42 Ω surges without parameter drift, extending PSU lifetime in harsh grid environments. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Across motor terminals or H-bridge outputs to clamp flyback energy during PWM commutation. Use Value: Symmetric bidirectional clamping prevents reverse-bias overstress on bridge MOSFETs during regenerative braking events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), higher VC (121 V @ 4.9 A) | Targeted at space-constrained consumer electronics; insufficient for automotive load dump compliance. | Select when board area is critical and surge energy is limited to ≤200 W; verify thermal margin with RθJA = 110 °C/W. |
| 1.5KE75CAHE3_B | Same electrical specs and package; differs only in revision code (B vs. A/C) and JEDEC tape-and-reel packaging (C vs. B carrier). | No functional difference; identical AEC-Q101 qualification status and performance. | Use interchangeably in production; A/C denotes updated reel configuration per Vishay's ordering matrix - no design impact. |
Compared with 1.5KE75CAHE3_A/C, SMBJ75CA trades surge capacity for footprint reduction, while 1.5KE75CAHE3_B offers identical protection with alternate logistics packaging - making the A/C variant optimal for new designs requiring full 1500 W compliance and legacy-compatible reel delivery.
Availability
1.5KE75CAHE3_A/C is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom power input staging requiring stable component supply, AEC-Q101 traceability, and long-term lifecycle continuity.
Supply support for 1.5KE75CAHE3_A/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 family was engineered specifically for high-energy transient suppression in harsh environments, emphasizing ruggedness, repeatable clamping, and AEC-Q101 validation for under-hood and factory-floor deployment.
FAQ
What is the clamping voltage of the 1.5KE75CAHE3_A/C under a standard 10/1000 µs surge?
The 1.5KE75CAHE3_A/C clamps to a maximum of 104 V when subjected to its rated peak pulse current of 14.6 A using the 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees predictable overvoltage limiting for downstream circuitry - critical for protecting 75 V-rated gate drivers or 100 V bus capacitors in automotive systems.
Is the 1.5KE75CAHE3_A/C suitable for automotive applications?
Yes, the 1.5KE75CAHE3_A/C is AEC-Q101 qualified and explicitly validated for automotive use, including engine control units, body electronics, and ADAS sensors. Its –55 °C to +175 °C operating range, glass-passivated junction stability, and 1500 W surge rating meet ISO 16750-2 load dump and ISO 7637-2 pulse requirements without derating.
Does the 1.5KE75CAHE3_A/C have polarity markings?
No - the 1.5KE75CAHE3_A/C is a bidirectional TVS diode and carries no polarity marking on its DO-201AD package. Both terminals are functionally identical, allowing flexible placement across differential lines or ungrounded rails without orientation constraints, reducing assembly errors and layout complexity.
How does the 1.5KE75CAHE3_A/C compare to unidirectional variants like 1.5KE75AHE3_A/C?
The 1.5KE75CAHE3_A/C provides symmetrical clamping in both directions, whereas the unidirectional 1.5KE75AHE3_A/C conducts only in reverse bias and requires correct cathode orientation. For AC-coupled or floating signal paths - such as CAN bus or Ethernet PHY interfaces - the CA version eliminates polarity dependency and simplifies design-in.
What is the maximum leakage current of the 1.5KE75CAHE3_A/C at its standoff voltage?
At its 64.1 V standoff voltage (VWM), the 1.5KE75CAHE3_A/C exhibits a maximum reverse leakage current of 1 µA at 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor bias networks and avoids unnecessary power drain in always-on automotive modules.
1.5KE75CAHE3_A/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Cut Tape (CT)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 104V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE75CAHE3_A/C FAQ
1.How can I place an order for 1.5KE75CAHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE75CAHE3_A/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 1.5KE75CAHE3_A/C reliable?
The price and inventory of 1.5KE75CAHE3_A/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE75CAHE3_A/C is usually 5 days.
3.What payment methods are accepted for 1.5KE75CAHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE75CAHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE75CAHE3_A/C?
1.5KE75CAHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE75CAHE3_A/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 1.5KE75CAHE3_A/C?
For technical support, including 1.5KE75CAHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE75CAHE3_A/C requirements.
6.How does Aetrix verify that 1.5KE75CAHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE75CAHE3_A/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 1.5KE75CAHE3_A/C meets industry standards.
7.What is the process for return or replacement of 1.5KE75CAHE3_A/C?
All 1.5KE75CAHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE75CAHE3_A/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 1.5KE75CAHE3_A/C part is unused and in its original packaging.
Return procedure for 1.5KE75CAHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE75CAHE3_A/C Tags
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