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Taiwan Semiconductor Corporation 1V5KE68CA
- Part No.:
- 1V5KE68CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE68CA.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:6,215
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Product details
Overview
1V5KE68CA from Taiwan Semiconductor is a bi-directional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 1500W peak pulse power rating at 1.0ms, 64.6V to 71.4V breakdown voltage (VBR), 58.1V reverse stand-off voltage (VRWM), 92.0V clamping voltage (VC) at 16.3A peak pulse current, and DO-201 axial package. It protects automotive infotainment power inputs against ISO 7637-2 pulses.
For engineers reviewing the 1V5KE68CA datasheet, 1V5KE68CA pinout, 1V5KE68CA application, or 1V5KE68CA equivalent, key selection criteria include its bi-directional clamping behavior, low incremental surge resistance, sub-1μA leakage above 10V, RoHS/halogen-free compliance, and UL 94V-0 molding compound - all critical for ESD and EFT immunity in industrial control interfaces.
Technical Context
The 1V5KE68CA operates as a silicon avalanche diode with glass-passivated junction, enabling fast response time (<1 ns) and stable clamping under repetitive transients. Its bi-directional symmetry ensures identical VBR, VRWM, and VC in both polarities, eliminating polarity-sensitive layout constraints.
Rated for -55°C to +175°C junction temperature and 175°C maximum operating temperature, it sustains operation in under-hood automotive environments. The DO-201 package supports 200A non-repetitive forward surge current (8.3ms half-sine) for uni-directional variants, while the CA suffix confirms bi-directional capability per JEDEC standard 1N6291A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.6V / 71.4V - Ensures reliable avalanche conduction onset within defined tolerance band at 1mA test current |
| VRWM | 58.1V - Maximum continuous reverse voltage before significant leakage; sets safe operating margin below VBR |
| VC @ IPPM | 92.0V at 16.3A - Clamped voltage during 1.0ms 1500W surge; defines worst-case overvoltage seen by protected IC |
| PPPM | 1500W - Peak pulse power handling per 1.0ms waveform; validates robustness against IEC 61000-4-5 Level 4 surges |
| IR @ VRWM | <1μA - Ultra-low leakage preserves battery life in always-on circuits and avoids false triggering |
| Junction Temp | -55°C to +175°C - Enables deployment in engine control units, motor drives, and industrial PLCs without derating |
| Package | DO-201 - Axial-leaded, through-hole package with pure tin plating; compatible with wave soldering and J-STD-002 |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy-molded body with cathode band marking for unidirectional variants; for 1V5KE68CA (bi-directional), polarity marking is not functional - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | Either lead serves as input/output; no polarity dependency - simplifies PCB routing and eliminates orientation errors |
| Leads (Tin-plated) | Interconnect interface | Meets J-STD-002 solderability; passes JESD201 Class 2 whisker test for long-term reliability in vibration-prone systems |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Stable VBR tolerance and low leakage across temperature; prevents moisture-induced degradation in humid environments |
| 1500W peak pulse power (1.0ms) | Withstands 4kV/2Ω IEC 61000-4-5 combination wave surges without failure or parameter shift |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., inductive switch-off in solenoid drivers) |
| RoHS & halogen-free (IEC 61249-2-21) | Complies with EU ELV and IPC-1752A reporting requirements; supports green manufacturing and end-of-life recycling |
| UL 94V-0 molding compound | Self-extinguishing epoxy prevents flame propagation in overvoltage fault conditions - required for industrial safety certifications |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V/24V supply inputs of telematics control units against load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping device placed at board edge before DC-DC converter input. Use Value: Limits transient voltage to ≤92.0V, preventing damage to downstream buck controllers rated for 36V max input. |
Use Scenario: Shielding 4–20mA current loop receivers from ESD events on field wiring in process automation. IC Role / Device Role / Timing Role: Bi-directional shunt clamp across loop terminals, referenced to local ground. Use Value: Sub-1ns response captures fast ESD spikes before they propagate into precision op-amps and ADC front-ends. |
| Smart Lighting Driver Protection | Medical Equipment EFT Immunity |
Use Scenario: Safeguarding constant-current LED driver ICs from inductive kickback when switching high-power LED strings. IC Role / Device Role / Timing Role: Parallel-connected TVS across MOSFET drain-source to absorb stored inductor energy. Use Value: 1500W rating handles >100mJ single-event energy without thermal runaway or parametric drift. |
Use Scenario: Meeting IEC 61000-4-4 Electrical Fast Transient (EFT) immunity requirements for patient-monitoring front-end analog circuits. IC Role / Device Role / Timing Role: Low-capacitance (<50pF) bi-directional clamp on isolated signal lines entering analog acquisition stage. Use Value: 92.0V clamping ensures signal integrity remains intact during 5kHz burst sequences without saturation or recovery delay. |
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 (Bourns) | 600W rating, SMB package (SMT), VRWM = 64V, VC = 103V @ 9.3A | Lower power handling; suited for space-constrained PCBs where 1500W is not required | Select when automated assembly and board density outweigh need for highest surge margin |
| P6KE68CA (ON Semiconductor) | Same 1500W rating and DO-201 package; VRWM = 58.1V, VC = 92V - identical electrical specs per JEDEC 1N6291A | Direct form-fit-function replacement; same pinout, thermal profile, and qualification history | Preferred for legacy designs qualified with ON's P6KE series; full drop-in compatibility confirmed |
Compared with SMBJ64CA, 1V5KE68CA delivers 2.5× higher surge energy absorption in the same axial footprint; versus P6KE68CA, it offers identical protection performance with Taiwan Semiconductor's extended 175°C TJ rating and halogen-free compound - critical for high-reliability industrial deployments.
Availability
1V5KE68CA is available at Aetrix Electronics and suitable for automotive infotainment power inputs, industrial 4–20mA sensor interfaces, smart lighting driver circuits, and medical EFT-immunity-critical signal paths requiring stable component supply and long lifecycle support.
Supply support for 1V5KE68CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with ISO/TS 16949 and ISO 14001 certification.
The 1V5KE series was developed specifically for high-reliability transient suppression in harsh-environment applications - emphasizing wide temperature operation, robust surge endurance, and regulatory compliance for automotive and industrial markets.
FAQ
What does the 'CA' suffix indicate in 1V5KE68CA?
The 'CA' suffix in 1V5KE68CA denotes bi-directional configuration - meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional variants (e.g., 1V5KE68A), 1V5KE68CA has no cathode marking and functions identically regardless of voltage polarity applied across its terminals, making it ideal for AC-coupled or floating signal line protection.
How does 1V5KE68CA compare to 1N6291A?
1V5KE68CA is Taiwan Semiconductor's direct equivalent to JEDEC-standard 1N6291A - sharing identical VBR (64.6–71.4V), VRWM (58.1V), VC (92.0V), and 1500W peak pulse rating. Both comply with the same mechanical (DO-201) and electrical specifications, and 1V5KE68CA is fully interchangeable with 1N6291A in design and qualification.
Can 1V5KE68CA be used in surface-mount designs?
No - 1V5KE68CA uses the DO-201 axial-leaded package and is intended for through-hole mounting only. For surface-mount equivalents, consider SMBJ64CA (600W) or SMCJ64CA (1500W), which offer comparable clamping performance in SMC packages but require PCB layout revision and thermal validation due to differing thermal mass and pad geometry.
What is the maximum allowable ambient temperature for continuous operation of 1V5KE68CA?
1V5KE68CA supports continuous operation up to +75°C ambient temperature at full rated power dissipation (5W), based on 0.375-inch lead length. Derating is required above this temperature per the steady-state power derating curve; however, its 175°C maximum junction temperature allows short-term surge operation even in high-ambient environments like engine compartments.
Is 1V5KE68CA compliant with AEC-Q200 for automotive use?
1V5KE68CA is not explicitly AEC-Q200 qualified per Taiwan Semiconductor's published documentation. While its -55°C to +175°C operating range and robust surge performance align with automotive requirements, designers targeting AEC-Q200-compliant systems should verify qualification status directly with TSC or select an AEC-Q200-certified variant such as TSC's AEC-Q200-qualified TVS portfolio (e.g., AEC-Q200 1V5KE68CA-AQ if available).
1V5KE68CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AD, Axial
- Series:
- -
- 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):
- 16.3A
- 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:
- DO-201AD
1V5KE68CA FAQ
1.How can I place an order for 1V5KE68CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE68CA 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 1V5KE68CA reliable?
The price and inventory of 1V5KE68CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE68CA is usually 5 days.
3.What payment methods are accepted for 1V5KE68CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE68CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE68CA?
1V5KE68CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE68CA 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 1V5KE68CA?
For technical support, including 1V5KE68CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE68CA requirements.
6.How does Aetrix verify that 1V5KE68CA is sourced from the original manufacturer or authorized distributors?
All 1V5KE68CA 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 1V5KE68CA meets industry standards.
7.What is the process for return or replacement of 1V5KE68CA?
All 1V5KE68CA units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE68CA, 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 1V5KE68CA part is unused and in its original packaging.
Return procedure for 1V5KE68CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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