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Vishay General Semiconductor - Diodes Division 1.5KE68CAHE3_B/C
- Part No.:
- 1.5KE68CAHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE68CAHE3_B/C.pdf
- Description:
- 1.5KW,68V 5%,BIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,313
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Product details
Overview
1.5KE68CAHE3_B/C 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 68 V breakdown voltage (VBR = 64.6–71.4 V at IT = 1.0 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 92.0 V at 16.3 A, 58.1 V stand-off voltage (VWM), and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs and ICs against lightning-induced transients in industrial power supplies.
For engineers reviewing the 1.5KE68CAHE3_B/C datasheet, 1.5KE68CAHE3_B/C pinout, 1.5KE68CAHE3_B/C application, or 1.5KE68CAHE3_B/C equivalent, this device delivers verified bidirectional clamping performance with AEC-Q101 qualification, RoHS-compliant HE3 packaging, and JESD 201 Class 2 whisker resistance - critical for automotive and harsh-environment designs requiring repeatable transient suppression without polarity sensitivity.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for sub-nanosecond response (<1 ns) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating circuits without requiring polarity-aware layout.
It sustains 1500 W peak pulse power under standardized 10/1000 µs waveform per REA, with thermal resistance RθJL = 15.4 °C/W enabling effective lead-based heat dissipation. The device meets UL 94 V-0 flammability and supports soldering up to 275 °C for 10 s per JESD 22-B106.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.6 V / 71.4 V at 1.0 mA test current - defines precise clamping onset threshold for overvoltage detection |
| VWM | 58.1 V - maximum continuous working voltage before leakage exceeds 1.0 µA, ensuring no false triggering in nominal operation |
| VC @ IPPM | 92.0 V at 16.3 A - actual clamped voltage during full 1500 W transient, limiting downstream stress on protected components |
| PPPM | 1500 W - peak pulse power handling capability with 10/1000 µs waveform, suitable for IEC 61000-4-5 Level 4 surges |
| Junction Temp Range | –55 °C to +175 °C - enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with matte tin-plated leads, UL 94 V-0 molded epoxy body |
Pinout & Package
1.5KE68CAHE3_B/C uses a two-terminal axial-leaded DO-201AD (Case Style 1.5KE) package. Bidirectional construction means both terminals are functionally identical - no cathode/anode marking; polarity-insensitive mounting simplifies PCB layout and eliminates orientation errors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals conduct identically during positive or negative overvoltage events - enables placement across AC lines or ungrounded differential pairs without polarity constraints |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control units and ADAS power rails |
| Glass passivated junction | Enhances long-term stability and moisture resistance vs. epoxy-passivated alternatives - critical for high-humidity industrial environments |
| 1500 W peak pulse rating | Withstands 10/1000 µs surges up to 16.3 A without degradation - exceeds IEC 61000-4-5 requirements for industrial equipment |
| Sub-nanosecond response | Clamps transients within <1 ns - faster than MOVs or GDTs, protecting sensitive gate drivers and ADC front-ends before damage occurs |
| RoHS & JESD 201 Class 2 compliant | Matte tin plating resists tin whisker growth under thermal stress - ensures reliability in aerospace and medical systems with >10-year service life |
Applications
| Industrial Motor Drives | Automotive Power Distribution |
|---|---|
Use Scenario: Protection of IGBT gate driver inputs against switching-induced voltage spikes in 48 V battery-powered motor controllers. IC Role / Device Role: Bidirectional clamping element placed across gate-source terminals to limit dv/dt and prevent false turn-on. Use Value: 92.0 V clamping voltage ensures gate oxide remains below 100 V stress threshold while surviving repetitive 1500 W transients during PWM commutation. |
Use Scenario: Surge suppression on LIN bus power rail exposed to load dump and jump-start conditions in body control modules. IC Role / Device Role: Primary overvoltage clamp on 12 V supply line upstream of LDO regulators and microcontrollers. Use Value: AEC-Q101 qualification and –55 °C to +175 °C operation guarantee functionality during cold cranking and under-hood thermal cycling. |
| Telecom Remote Power Feeds | Renewable Energy Inverter DC Links |
Use Scenario: Protection of PoE-powered remote radio units connected via long outdoor copper runs susceptible to induced lightning surges. IC Role / Device Role: Bidirectional TVS placed across secondary-side DC output of isolated DC/DC converter feeding RF amplifier. Use Value: Symmetrical 64.6–71.4 V breakdown allows equal protection against positive and negative transients from either conductor, eliminating need for dual unidirectional devices. |
Use Scenario: Clamping of DC-link voltage overshoot during rapid IGBT turn-off in solar string inverters operating at 600–1000 V bus levels. IC Role / Device Role: Secondary-level transient suppressor across snubber capacitor to absorb residual energy not captured by primary RC network. Use Value: 15.4 °C/W junction-to-lead thermal resistance enables direct heat sinking through PCB copper pours, sustaining repeated 1500 W pulses without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA | Lower peak power (600 W), smaller SMB package (vs. DO-201AD), 64 V VBR range (60.8–67.2 V) | Targeted at space-constrained consumer electronics; lacks AEC-Q101 qualification and JESD 201 Class 2 whisker rating | Select when board area is limited and automotive qualification is unnecessary; verify thermal derating for >1000 W surges |
| 1.5KE68AHE3_B/C | Unidirectional variant with identical VBR, VWM, and PPPM; includes cathode band marking | Required where polarity-specific clamping is needed (e.g., DC power rails with defined ground reference) | Choose only if circuit topology mandates unidirectional behavior; otherwise 1.5KE68CAHE3_B/C offers greater layout flexibility |
Compared with SMBJ64CA and 1.5KE68AHE3_B/C, the 1.5KE68CAHE3_B/C uniquely combines AEC-Q101 qualification, 1500 W capability in a robust axial package, and true bidirectional symmetry - making it the preferred choice for high-reliability, high-energy, polarity-agnostic surge protection in automotive and industrial systems.
Availability
1.5KE68CAHE3_B/C is available at Aetrix Electronics and suitable for industrial motor drives, automotive power distribution modules, telecom remote power feeds, and renewable energy inverter DC links requiring stable component supply with guaranteed long-term continuity.
Supply support for 1.5KE68CAHE3_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 demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, emphasizing robustness, repeatable clamping, and qualification to automotive and industrial reliability standards.
FAQ
What is the exact breakdown voltage range for 1.5KE68CAHE3_B/C?
The 1.5KE68CAHE3_B/C has a minimum breakdown voltage (VBR) of 64.6 V and a maximum of 71.4 V, measured at a test current of 1.0 mA. This range is confirmed in Vishay's official datasheet (Document Number: 88301, Revision: 09-Aug-2022) and defines the voltage threshold at which the device transitions from high-impedance blocking to low-impedance clamping during overvoltage events.
Is 1.5KE68CAHE3_B/C suitable for automotive applications?
Yes, 1.5KE68CAHE3_B/C is AEC-Q101 qualified per Vishay's ordering information note (1)(2) in the datasheet, covering devices from 1.5KE6.8CAHE3_B to 1.5KE220CAHE3_B. This qualification validates its reliability for automotive power electronics, including engine control units and body electronics subjected to temperature cycling, humidity, and mechanical shock.
What does the "HE3_B/C" suffix indicate in 1.5KE68CAHE3_B/C?
The "HE3" suffix denotes RoHS compliance and AEC-Q101 qualification; "B/C" specifies the packaging configuration - 13-inch paper tape and reel with 1400 units per reel (Package Code C). The "HE3" also confirms JESD 201 Class 2 whisker resistance, critical for long-life automotive and industrial deployments.
How does the clamping voltage of 1.5KE68CAHE3_B/C compare to its breakdown voltage?
The 1.5KE68CAHE3_B/C clamps at 92.0 V when subjected to its maximum peak pulse current of 16.3 A (10/1000 µs waveform). This is approximately 27% above its nominal 68 V rating and 35% above its minimum VBR of 64.6 V - a design margin that ensures protected circuitry remains within safe operating limits during worst-case transients.
Can 1.5KE68CAHE3_B/C be used in AC line protection?
Yes, the bidirectional nature of 1.5KE68CAHE3_B/C makes it ideal for AC line protection, such as across secondary windings of isolation transformers or between differential signal pairs. Its symmetrical VBR and VC characteristics ensure identical clamping for both polarities, eliminating the need for back-to-back unidirectional devices in floating or AC-coupled topologies.
1.5KE68CAHE3_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):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 17A
- 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
1.5KE68CAHE3_B/C FAQ
1.How can I place an order for 1.5KE68CAHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE68CAHE3_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 1.5KE68CAHE3_B/C reliable?
The price and inventory of 1.5KE68CAHE3_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 1.5KE68CAHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE68CAHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE68CAHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE68CAHE3_B/C?
1.5KE68CAHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE68CAHE3_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 1.5KE68CAHE3_B/C?
For technical support, including 1.5KE68CAHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE68CAHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE68CAHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE68CAHE3_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 1.5KE68CAHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE68CAHE3_B/C?
All 1.5KE68CAHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE68CAHE3_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 1.5KE68CAHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE68CAHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE68CAHE3_B/C Tags
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ESD9B5.0ST5G
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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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Diodes Incorporated
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D12V0L1B2LP-7B
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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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