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Vishay General Semiconductor - Diodes Division 1.5KE75CAHE3_A/D
- Part No.:
- 1.5KE75CAHE3_A/D
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE75CAHE3_A/D.pdf
- Description:
- TVS DIODE 64.1VWM 104VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,594
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Product details
Overview
1.5KE75CAHE3_A/D from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge 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), 104 V clamping voltage at 14.6 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the 1.5KE75CAHE3_A/D datasheet, 1.5KE75CAHE3_A/D pinout, 1.5KE75CAHE3_A/D application, or 1.5KE75CAHE3_A/D equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJL = 15.4 °C/W), RoHS-compliant HE3 packaging, and bidirectional clamping behavior critical for ESD and lightning transient design.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities. Its bidirectional architecture enables use without polarity orientation on PCBs, and its 104 V clamping voltage at 14.6 A ensures robust protection of 48 V and 60 V DC systems against IEC 61000-4-5 surge events.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15.4 °C/W, supporting reliable operation up to TJ = 175 °C. The 1.5KE package supports lead-free soldering per J-STD-002 and meets UL 94 V-0 flammability rating, with matte tin-plated leads qualified to JESD 201 Class 2 whisker test.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V - defines minimum and maximum voltage at which avalanche conduction begins under 1 mA test current; sets precision threshold for transient detection. |
| VWM | 64.1 V - maximum continuous reverse operating voltage; must exceed system nominal voltage (e.g., 48 V rail) to prevent leakage during normal operation. |
| VC @ IPPM | 104 V at 14.6 A - clamping voltage during 10/1000 µs surge; determines maximum stress imposed on protected downstream components. |
| PPPM | 1500 W - peak pulse power handling capacity; enables survival of high-energy transients such as lightning-induced surges on industrial fieldbus lines. |
| TJ max. | 175 °C - maximum junction temperature; allows operation in under-hood automotive environments and enclosed industrial enclosures. |
| RθJL | 15.4 °C/W - junction-to-lead thermal resistance; informs heatsinking requirements when mounted on copper pour or chassis-connected leads. |
| AEC-Q101 | Qualified - confirms reliability for automotive electronics applications including body control modules and power distribution units. |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body over passivated junction, UL 94 V-0 rated, with matte tin-plated leads. Dimensions: 5.3 mm × 5.3 mm × 9.5 mm (L × W × H), lead spacing 7.2 mm, lead diameter 1.07 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Reversible surge conduction path | No polarity marking; terminals are functionally identical - either lead may connect to line or ground, enabling flexible PCB layout in differential or common-mode protection schemes. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics over lifetime and temperature; eliminates surface degradation risks in humid or contaminated environments. |
| 1500 W peak pulse power (10/1000 µs) | Supports compliance with IEC 61000-4-5 Level 4 (4 kV line-earth, 2 kV line-line) when properly laid out with low-inductance grounding. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and chassis applications where failure modes must meet stringent reliability standards. |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - required for long-life automotive and industrial deployments. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD > 10 kV/µs), improving protection margin for sub-20 V logic interfaces. |
Applications
| Automotive Power Distribution | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs from load dump and alternator surge events. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input rails to clamp transients before they reach DC-DC converters and microcontrollers. Use Value: Clamps 104 V at 14.6 A, limiting stress on 60 V-rated input stages while surviving repetitive 1500 W pulses per ISO 7637-2 Pulse 5a. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Placed differentially across loop terminals to suppress common-mode transients induced by nearby motor drives or relay switching. Use Value: Symmetrical clamping ensures equal protection regardless of signal polarity; 64.1 V VWM avoids interference with 24 V loop supply headroom. |
| Telecom Remote Radio Unit Power | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding outdoor 48 V PoE-powered RRUs from lightning-induced surges on power and data lines. IC Role / Device Role / Timing Role: Primary front-end TVS on DC input, coordinated with secondary GDT or MOV stages for staged energy absorption. Use Value: 1500 W rating handles multi-kA lightning currents; 10 ns response time prevents damage to GaN FETs and Ethernet PHYs upstream. |
Use Scenario: Protecting MCU GPIOs and gate drivers in washing machine motor control boards from inductive kickback. IC Role / Device Role / Timing Role: Mounted across relay coils and half-bridge outputs to absorb flyback energy during MOSFET turn-off. Use Value: 175 °C TJ max enables placement near heat-generating triacs; bidirectional operation simplifies layout in AC-coupled drive circuits. |
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 peak pulse power (600 W), smaller SMB package (3.5 mm × 4.6 mm), higher clamping ratio (VC/VBR ≈ 1.45 vs. 1.35). | Best suited for space-constrained consumer electronics with lower surge threat levels (IEC 61000-4-2 only); not rated for AEC-Q101. | Select SMBJ75CA only when board area is critical and surge energy remains below 100 J - verify clamping margin with actual system impedance. |
| 1.5SMC75CA | Same 1500 W rating and 1.5KE footprint, but commercial-grade (no AEC-Q101), different thermal resistance (RθJL = 12.5 °C/W), and no HE3 whisker qualification. | Acceptable for industrial controls where automotive qualification is unnecessary, but requires revalidation for extended temperature cycling. | Choose 1.5SMC75CA if cost sensitivity outweighs automotive qualification needs and thermal derating can be managed via layout. |
Compared with 1.5KE75CAHE3_A/D, SMBJ75CA trades surge robustness for compactness and cost, while 1.5SMC75CA matches power but lacks AEC-Q101 validation and enhanced whisker resistance - making 1.5KE75CAHE3_A/D the sole choice for production automotive systems requiring full qualification traceability.
Availability
1.5KE75CAHE3_A/D is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC analog input protection, telecom remote radio unit power, and consumer appliance motor drive protection requiring stable component supply and long-term lifecycle assurance.
Supply support for 1.5KE75CAHE3_A/D 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, high-power, and automotive-qualified components.
The 1.5KE series was developed specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where sustained surge immunity and long-term stability are mandatory.
FAQ
What is the breakdown voltage range for 1.5KE75CAHE3_A/D?
The 1.5KE75CAHE3_A/D has a guaranteed breakdown voltage (VBR) range of 71.3 V to 78.8 V at 1 mA test current, measured per JEDEC standard. This range ensures consistent clamping initiation across production lots and temperature extremes, directly supporting design margin calculations for 48 V and 60 V systems.
Is 1.5KE75CAHE3_A/D bidirectional or unidirectional?
The 1.5KE75CAHE3_A/D is a bidirectional TVS diode, indicated by the "CA" suffix. It provides symmetrical clamping in both polarities with identical VBR, VWM, and VC characteristics - eliminating polarity concerns during PCB placement and enabling use in AC-coupled or floating signal paths.
Does 1.5KE75CAHE3_A/D meet AEC-Q101 qualification?
Yes, 1.5KE75CAHE3_A/D is AEC-Q101 qualified, as confirmed by Vishay's documentation for the HE3 suffix variant. This qualification covers temperature cycling, humidity testing, mechanical shock, and accelerated life testing - validating its use in automotive powertrain and chassis modules.
What is the clamping voltage of 1.5KE75CAHE3_A/D at its rated peak pulse current?
The 1.5KE75CAHE3_A/D clamps to a maximum of 104 V at its rated peak pulse current of 14.6 A (10/1000 µs waveform). This value is critical for determining the maximum voltage stress imposed on downstream components and must be compared against their absolute maximum ratings during surge design.
What package type does 1.5KE75CAHE3_A/D use, and what are its key mechanical properties?
The 1.5KE75CAHE3_A/D uses the Case Style 1.5KE package: molded epoxy body meeting UL 94 V-0, 5.3 mm × 5.3 mm × 9.5 mm outline, 7.2 mm lead spacing, and 1.07 mm lead diameter. Its matte tin-plated leads comply with J-STD-002 and JESD 201 Class 2 whisker resistance requirements.
1.5KE75CAHE3_A/D 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:
- Active
- 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/D FAQ
1.How can I place an order for 1.5KE75CAHE3_A/D through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE75CAHE3_A/D 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/D reliable?
The price and inventory of 1.5KE75CAHE3_A/D 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/D is usually 5 days.
3.What payment methods are accepted for 1.5KE75CAHE3_A/D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE75CAHE3_A/D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE75CAHE3_A/D?
1.5KE75CAHE3_A/D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE75CAHE3_A/D 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/D?
For technical support, including 1.5KE75CAHE3_A/D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE75CAHE3_A/D requirements.
6.How does Aetrix verify that 1.5KE75CAHE3_A/D is sourced from the original manufacturer or authorized distributors?
All 1.5KE75CAHE3_A/D 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/D meets industry standards.
7.What is the process for return or replacement of 1.5KE75CAHE3_A/D?
All 1.5KE75CAHE3_A/D units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE75CAHE3_A/D, 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/D part is unused and in its original packaging.
Return procedure for 1.5KE75CAHE3_A/D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE75CAHE3_A/D Tags
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