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Vishay General Semiconductor - Diodes Division 1.5KE160CA-E3/51
- Part No.:
- 1.5KE160CA-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE160CA-E3/51.pdf
- Description:
- TVS DIODE 136VWM 219VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,631
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Product details
Overview
1.5KE160CA-E3/51 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 160 V breakdown voltage (VBR = 152–168 V), 136 V maximum standoff voltage (VWM), 219 V clamping voltage at 6.8 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates across –55 °C to +175 °C junction temperature. It is deployed in automotive sensor interfaces and industrial I/O protection circuits.
For engineers reviewing the 1.5KE160CA-E3/51 datasheet, 1.5KE160CA-E3/51 pinout, 1.5KE160CA-E3/51 application, or 1.5KE160CA-E3/51 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, JEDEC 1.5KE package details, thermal resistance (RθJA = 75 °C/W), and AEC-Q101-qualified alternatives - all critical for surge immunity validation and PCB-level TVS selection.
Technical Context
This device implements a glass-passivated silicon PN 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 constraints, supporting both differential and common-mode surge suppression.
It complies with UL 497B recognition (QVGQ2) and meets JESD 201 Class 1A whisker testing. The 1.5KE160CA-E3/51 is rated for 1500 W peak pulse power under 10/1000 µs waveform at 0.01% duty cycle, with derating above 25 °C ambient per Fig. 2 and thermal resistance RθJL = 15.4 °C/W to lead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 152 V / 168 V - Ensures reliable conduction onset within ±5% tolerance at 1.0 mA test current |
| VWM | 136 V - Maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 219 V - Clamped voltage during 1500 W transient, limiting downstream stress to safe levels |
| IPPM | 6.8 A - Peak pulse current supported under 10/1000 µs waveform, defining surge handling capacity |
| PPPM | 1500 W - Sustains single 1 ms transients typical of EFT and lightning-induced surges |
| TJ range | –55 °C to +175 °C - Enables deployment in under-hood automotive and high-temp industrial environments |
| RθJA | 75 °C/W - Determines thermal rise under sustained power dissipation; requires adequate PCB copper area |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), axial-leaded molded epoxy body with matte tin-plated leads. Complies with UL 94 V-0 flammability rating and RoHS Directive 2011/65/EU.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Not used as rectifier; participates in bidirectional clamping when voltage exceeds VBR in either polarity |
| Cathode | Current exit point in forward bias | Paired with anode to form symmetric avalanche path; no polarity marking on bidirectional variants |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable avalanche characteristics and long-term reliability under repeated surge stress |
| 1500 W peak pulse power (10/1000 µs) | Protects against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation |
| Sub-nanosecond response time | Clamps transients before sensitive ICs experience damaging overvoltage (tr < 1 ns) |
| AEC-Q101 qualified option available | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom and industrial signal line protectors per Underwriters Laboratories |
Applications
| Automotive Sensor Protection | Industrial PLC I/O |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in 12 V/24 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed at connector interface to shunt surge energy before it reaches signal conditioning circuitry. Use Value: Limits transient voltage to ≤219 V, preventing latch-up or gate oxide rupture in downstream ASICs and microcontrollers. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to field wiring surges from motor contactors and solenoid coils. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, operating in parallel with optocoupler isolation barriers. Use Value: Absorbs up to 1500 W of surge energy without failure, maintaining system uptime and reducing maintenance due to field-induced failures. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary protection on POTS or DSL line cards where primary gas discharge tube (GDT) handling >5 kA is followed by precise clamping. IC Role / Device Role / Timing Role: Fast-acting secondary suppressor coordinating with GDT to reduce let-through voltage and protect line driver ICs. Use Value: Reduces clamping voltage from ~600 V (GDT alone) to ≤219 V, enabling use of lower-voltage-rated interface components. | Use Scenario: Input-stage surge suppression in AC-DC adapters for smart home devices subjected to mains-borne transients per IEC 61000-4-5. IC Role / Device Role / Timing Role: First-line transient suppressor across bridge rectifier inputs, absorbing energy before bulk capacitor and controller IC. Use Value: Withstands repetitive 1500 W pulses at 0.01% duty cycle, extending adapter lifetime in regions with unstable grid conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160CA | Lower peak pulse power (600 W), smaller SMB package (vs. DO-201AD), higher VC/VBR ratio | Better suited for space-constrained PCBs with lower surge threat levels (IEC 61000-4-5 Level 2) | Select when board area is limited and full 1500 W capability is not required. |
| 1.5KE160CAHE3_B | Identical electrical specs; AEC-Q101 qualified, JESD 201 Class 2 whisker resistance, revision-coded "B" | Required for automotive production programs needing automotive-grade qualification and traceability | Choose for OEM automotive designs requiring PPAP documentation and extended reliability validation. |
Compared with 1.5KE160CA-E3/51, SMBJ160CA trades surge capacity for compactness, while 1.5KE160CAHE3_B adds automotive qualification without altering clamping performance - enabling direct substitution only where AEC-Q101 compliance is mandated.
Availability
1.5KE160CA-E3/51 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line interface applications requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for 1.5KE160CA-E3/51 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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where robustness against lightning and switching surges is non-negotiable.
FAQ
What is the clamping voltage of the 1.5KE160CA-E3/51 under peak pulse conditions?
The 1.5KE160CA-E3/51 exhibits a maximum clamping voltage (VC) of 219 V at its rated peak pulse current (IPPM) of 6.8 A, measured using a 10/1000 µs waveform. This value ensures downstream components see voltage limited to ≤219 V during transient events, directly supporting design margin calculations for protected ICs. The 1.5KE160CA-E3/51 maintains this clamping performance across its full operating temperature range.
Is the 1.5KE160CA-E3/51 suitable for automotive applications?
The 1.5KE160CA-E3/51 itself is commercial-grade and RoHS-compliant but not AEC-Q101 qualified. However, its functionally identical variant 1.5KE160CAHE3_B is AEC-Q101 qualified and approved for automotive use. Engineers designing for automotive systems should specify the HE3 suffix version; the 1.5KE160CA-E3/51 remains appropriate for non-automotive industrial or telecom applications where qualification is not mandated.
How does the bidirectional configuration of the 1.5KE160CA-E3/51 affect its circuit placement?
The 1.5KE160CA-E3/51 has no polarity marking and conducts symmetrically in both directions, making it ideal for AC-coupled lines, differential pairs (e.g., RS-485), or floating grounds where voltage polarity reversal is possible. Unlike unidirectional TVS diodes, it eliminates orientation errors during assembly and provides equal clamping for positive and negative transients - a key advantage in 1.5KE160CA-E3/51 deployments on bidirectional signal paths.
What is the thermal resistance of the 1.5KE160CA-E3/51, and how does it impact layout?
The 1.5KE160CA-E3/51 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W. To maintain safe operation under sustained power dissipation, PCB layout must include ≥1 cm² of 2-oz copper connected to both leads. For high-reliability applications, thermal vias under the leads and internal ground planes further reduce effective RθJA. This thermal behavior is intrinsic to the DO-201AD package used by the 1.5KE160CA-E3/51.
Does the 1.5KE160CA-E3/51 meet UL safety standards?
Yes - the 1.5KE160CA-E3/51 carries Underwriters Laboratories recognition under UL 497B (file E136766) for protector classification QVGQ2, covering both unidirectional and bidirectional configurations. This certification validates its suitability for use in telecom and industrial equipment requiring third-party safety approval. The 1.5KE160CA-E3/51 achieves this while maintaining its specified 1500 W surge rating and 219 V clamping performance.
1.5KE160CA-E3/51 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):
- 136V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 219V
- Current - Peak Pulse (10/1000µs):
- 6.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE160CA-E3/51 FAQ
1.How can I place an order for 1.5KE160CA-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE160CA-E3/51 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 1.5KE160CA-E3/51 reliable?
The price and inventory of 1.5KE160CA-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE160CA-E3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE160CA-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE160CA-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE160CA-E3/51?
1.5KE160CA-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE160CA-E3/51 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 1.5KE160CA-E3/51?
For technical support, including 1.5KE160CA-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE160CA-E3/51 requirements.
6.How does Aetrix verify that 1.5KE160CA-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE160CA-E3/51 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 1.5KE160CA-E3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE160CA-E3/51?
All 1.5KE160CA-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE160CA-E3/51, 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 1.5KE160CA-E3/51 part is unused and in its original packaging.
Return procedure for 1.5KE160CA-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE160CA-E3/51 Tags
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