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Vishay General Semiconductor - Diodes Division 1.5KE7.5CAHE3/51
- Part No.:
- 1.5KE7.5CAHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE7.5CAHE3/51.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,657
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Product details
Overview
1.5KE7.5CAHE3/51 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in signal and power lines. It features a 7.13 V to 7.88 V breakdown voltage (VBR) at 10 mA, 6.40 V stand-off voltage (VWM), 104 A peak pulse current (IPPM), and clamps transients to ≤11.3 V at rated surge - used in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning.
For engineers reviewing the 1.5KE7.5CAHE3/51 datasheet, 1.5KE7.5CAHE3/51 pinout, 1.5KE7.5CAHE3/51 application, or 1.5KE7.5CAHE3/51 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, JEDEC 1.5KE package dimensions, clamping behavior under 10/1000 µs surge, and direct alternatives with documented parameter divergence.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, enabling single-device protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<500 µA at VWM), while the 1500 W peak pulse power rating is validated per 10/1000 µs waveform with 0.01% duty cycle.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15.4 °C/W, supporting operation from –55 °C to +175 °C junction temperature. The device meets JESD 201 Class 2 whisker resistance (HE3 suffix) and UL 94 V-0 flammability requirements, confirming suitability for high-reliability automotive and industrial deployments.
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 bidirectional surge events |
| VWM | 6.40 V - maximum continuous working voltage before leakage exceeds 500 µA |
| IPPM | 104 A at 10/1000 µs - peak surge current it safely shunts without failure |
| VC @ IPPM | ≤11.3 V - clamped voltage during full-rated surge, limiting stress on downstream ICs |
| PPPM | 1500 W - transient energy handling capacity under standardized lightning-surge waveform |
| TJ max. | +175 °C - enables placement near heat sources in engine control units or power supplies |
| AEC-Q101 | Qualified - certified for automotive-grade reliability per stress-test protocol |
Pinout & Package
1.5KE7.5CAHE3/51 uses the standard axial-leaded Case Style 1.5KE package (JEDEC DO-201AD), with no polarity marking - consistent with bi-directional functionality. Leads are matte tin-plated and solderable per J-STD-002/JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge conduction path | No functional distinction between leads; either terminal serves as cathode or anode depending on transient polarity |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures ±5% VBR tolerance and <500 µA leakage at VWM, critical for precision protection circuits |
| 1500 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed enclosures per safety standards |
| JESD 201 Class 2 whisker resistance | Eliminates tin whisker risk in long-life industrial deployments (>15 years) |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to divert transients before reaching signal conditioning circuitry. Use Value: Clamps 10/1000 µs surges to ≤11.3 V, preserving integrity of 5 V or 3.3 V microcontrollers and ADC front-ends. |
Use Scenario: Safeguarding PLC digital input channels against induced surges from relay coil switching and motor drive noise. IC Role / Device Role / Timing Role: Primary overvoltage clamp across isolated optocoupler inputs or discrete transistor switch bases. Use Value: Sub-1 ns response time prevents latch-up in upstream logic, while 1500 W rating handles repetitive 100 A transients. |
| Telecom Line Conditioning | Consumer Power Adapter Input Stage |
Use Scenario: Secondary-level protection on POTS or DSL line cards exposed to lightning-induced surges on outdoor copper pairs. IC Role / Device Role / Timing Role: Coordinated clamping stage following gas discharge tube (GDT) primary protection. Use Value: Low clamping voltage (≤11.3 V) limits stress on downstream TSS diodes and line drivers operating at ±12 V rails. |
Use Scenario: Input-stage surge suppression in wall adapters and USB-C PD chargers subjected to mains-borne transients. IC Role / Device Role / Timing Role: First-line defense across AC input rectifier outputs or DC bus rails prior to bulk capacitor filtering. Use Value: 6.40 V VWM allows reliable operation with 5 V–9 V output designs while blocking normal ripple. |
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. axial 1.5KE), VBR = 7.78–8.60 V | Better suited for PCB space-constrained designs; not rated for AEC-Q101 | Select when board area is limited and automotive qualification is unnecessary |
| 1.5KE7.5C | Same electrical specs but lacks HE3 suffix - no AEC-Q101 qualification or JESD 201 Class 2 whisker resistance | Restricted to commercial-grade industrial or consumer use only | Choose only for cost-sensitive non-automotive applications where long-term whisker reliability is not required |
Compared with 1.5KE7.5CAHE3/51, SMBJ7.0CA trades peak power and qualification for compactness, while 1.5KE7.5C retains identical clamping but omits automotive and long-life reliability certifications - making 1.5KE7.5CAHE3/51 the sole choice for AEC-Q101-compliant, high-energy surge environments.
Availability
1.5KE7.5CAHE3/51 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and telecom line card development requiring stable component supply and long-term lifecycle assurance.
Supply support for 1.5KE7.5CAHE3/51 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 demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - emphasizing AEC-Q101 compliance, repeatable clamping, and robust thermal performance in axial-leaded form factors.
FAQ
What is the breakdown voltage range of the 1.5KE7.5CAHE3/51?
The 1.5KE7.5CAHE3/51 has a guaranteed breakdown voltage (VBR) range of 7.13 V to 7.88 V at 10 mA test current, measured per JEDEC standards. This tight ±5% tolerance ensures predictable clamping onset across production lots and temperature extremes, directly supporting design margin calculations for protected ICs.
Is the 1.5KE7.5CAHE3/51 qualified for automotive applications?
Yes, the 1.5KE7.5CAHE3/51 is AEC-Q101 qualified - confirmed in Vishay's official documentation (Document Number 88301, Revision 11-Oct-16). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock, validating its use in engine control units, body electronics, and ADAS sensor modules.
What does the "HE3" suffix indicate on the 1.5KE7.5CAHE3/51?
The "HE3" suffix on 1.5KE7.5CAHE3/51 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike base "E3" parts, HE3 devices undergo additional reliability screening for automotive and long-life industrial use, including extended temperature cycling and tin whisker mitigation testing.
How does the 1.5KE7.5CAHE3/51 perform under repeated surge conditions?
The 1.5KE7.5CAHE3/51 supports repetitive 10/1000 µs surges at 0.01% duty cycle - meaning up to one pulse per 10,000 µs. Its thermal resistance (RθJL = 15.4 °C/W) enables rapid heat dissipation into PCB copper or chassis, allowing sustained operation in systems with frequent switching transients like motor drives or relay-based controls.
What is the clamping voltage of the 1.5KE7.5CAHE3/51 at its rated peak pulse current?
At its rated peak pulse current of 104 A (10/1000 µs waveform), the 1.5KE7.5CAHE3/51 clamps to a maximum of 11.3 V. This value is specified in the Vishay datasheet (Document 88301, Table on page 2) and represents the upper limit of voltage seen by downstream circuitry during worst-case surge events - critical for ensuring safe operation of 5 V or 3.3 V logic interfaces.
1.5KE7.5CAHE3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE7.5CAHE3/51 FAQ
1.How can I place an order for 1.5KE7.5CAHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE7.5CAHE3/51 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 1.5KE7.5CAHE3/51 reliable?
The price and inventory of 1.5KE7.5CAHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE7.5CAHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE7.5CAHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE7.5CAHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE7.5CAHE3/51?
1.5KE7.5CAHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE7.5CAHE3/51 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 1.5KE7.5CAHE3/51?
For technical support, including 1.5KE7.5CAHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE7.5CAHE3/51 requirements.
6.How does Aetrix verify that 1.5KE7.5CAHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE7.5CAHE3/51 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 1.5KE7.5CAHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE7.5CAHE3/51?
All 1.5KE7.5CAHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE7.5CAHE3/51, 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 1.5KE7.5CAHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE7.5CAHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE7.5CAHE3/51 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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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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