My Inquiry
My Account
Taiwan Semiconductor Corporation 1.5KE68CA R0G
- Part No.:
- 1.5KE68CA R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE68CA R0G.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:3,008
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE68CA R0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 68V, working stand-off voltage 55.1V, clamping voltage 98.0V at 16A peak pulse current, and AEC-Q101 qualification for automotive-grade surge protection in power rails and signal lines.
For engineers reviewing the 1.5KE68CA R0G datasheet, 1.5KE68CA R0G pinout, 1.5KE68CA R0G application, or 1.5KE68CA R0G equivalent, this page delivers verified electrical parameters, ISO 7637-2 compliance data, thermal derating curves, junction capacitance behavior, and real-world ESD/inductive switching protection use cases - all specific to the 1.5KE68CA R0G variant.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, delivering sub-nanosecond response (<5.0ns) to transients while maintaining low dynamic impedance and clamping ratio (VC/VBR ≈ 1.44). Its 1500W peak pulse power rating is defined at 10/1000μs waveform per IEC 61000-4-5 and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity requirements.
Designed for unclamped inductive load switching and ESD protection in automotive ECUs and industrial control systems, it features a maximum leakage current of 1μA at 55.1V, temperature coefficient of VBR = 0.104%/°C, and junction temperature range from –55°C to +175°C - enabling reliable operation under harsh thermal cycling conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 61.2V / 74.8V @ IT = 1.0mA - defines guaranteed clamping onset window under standardized test conditions |
| VWM | 55.1V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPP | 98.0V @ 16A - clamping voltage during 10/1000μs surge, limiting downstream voltage stress |
| PPK | 1500W - peak pulse power handling capability at TA = 25°C, derated above ambient |
| TJ max | +175°C - maximum junction temperature supports high-reliability automotive under-hood deployment |
| Package | DO-201 - industry-standard axial-leaded package with UL 94V-0 molding compound and tin-plated leads |
| AEC-Q101 | Qualified - validated for automotive electronics per stress testing requirements including temperature cycling, HTRB, and ESD |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for unidirectional variants; 1.5KE68CA R0G is bidirectional and marked with "68C" code - no polarity marking required. Lead spacing 5.0–7.5mm, body diameter 5.2–5.7mm, length 9.5mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Acts as cathode during positive transients and anode during negative transients - symmetrical conduction |
| Cathode | Transient return path (bidirectional) | Same terminal designation as anode due to bidirectional symmetry; no functional polarity distinction |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| ISO 7637-2 compliance | Validated against automotive transient pulses 1 (inductive load dump), 2a/2b (supply interruption), and 3a/3b (capacitive coupling) |
| Low clamping ratio (VC/VBR) | 1.44 typical - minimizes overvoltage exposure to protected ICs compared to higher-ratio alternatives |
| AEC-Q101 qualification | Confirms reliability for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive - compliant for green manufacturing and end-of-life recycling |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed microcontroller power inputs in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at MCU VDD pin input, absorbing energy before LDO or DC-DC converter. Use Value: Limits transient voltage to ≤98.0V during 10/1000μs surges, preventing latch-up or gate oxide damage in 3.3V/5V logic devices. | Use Scenario: Shielding analog front-end inputs of pressure/temperature sensors connected to long harnesses in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional shunt device across differential signal pair (e.g., RS-485 bus or 4–20mA loop), suppressing EFT and ESD. Use Value: Responds in <5.0ns to fast transients, clamping common-mode spikes to safe levels without distorting low-frequency sensor signals. |
| LED Driver Output Protection | Motor Control Gate Drive Protection |
Use Scenario: Safeguarding constant-current LED driver outputs from inductive kickback when driving high-power lighting arrays. IC Role / Device Role / Timing Role: Parallel-connected TVS across output terminals, conducting only during overvoltage events exceeding 55.1V. Use Value: Absorbs up to 1500W surge energy without degradation, preserving driver MOSFET integrity during frequent on/off cycling. | Use Scenario: Protecting half-bridge gate drivers (e.g., IR2110) from Miller-induced voltage spikes during high-dV/dt switching of BLDC motors. IC Role / Device Role / Timing Role: Clamping device between gate and source terminals of high-side MOSFET, limiting VGS excursion. Use Value: Maintains VGS below absolute maximum rating (typically ±20V) by clamping at 98.0V across full device, ensuring robust gate oxide reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA | 600W rating, SMB package (surface-mount), VBR = 71.1–78.6V, VC = 103V @ 8.5A | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 1 (load dump) | Select when board space constraints require SMD and surge energy stays below 600W |
| 1.5SMC68CA | 1500W rating, SMC package (SMD), VBR = 61.2–74.8V, VC = 102V @ 14.7A, same electrical specs but different footprint | No lead-forming or through-hole assembly needed; requires PCB rework for DO-201 replacement | Choose for automated SMT production where DO-201 axial insertion is impractical |
Compared with 1.5KE68CA R0G, SMBJ64CA offers smaller size but sacrifices 60% peak power handling and automotive pulse compliance, while 1.5SMC68CA matches electrical performance exactly but demands surface-mount layout adaptation - making 1.5KE68CA R0G optimal for through-hole automotive modules requiring proven ISO 7637-2 immunity.
Availability
1.5KE68CA R0G is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and LED driver output safeguarding requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for 1.5KE68CA R0G 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 global distribution and AEC-Q101 certification capabilities.
The 1.5KE series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing robustness, repeatable clamping, and compliance with ISO 7637-2 and IEC 61000-4-5 standards.
FAQ
What does the 'CA' suffix mean in 1.5KE68CA R0G?
The 'CA' suffix in 1.5KE68CA R0G indicates a bidirectional configuration - meaning the device provides symmetrical transient suppression in both forward and reverse directions, unlike unidirectional 'A' variants. This enables protection of AC-coupled circuits, differential buses, or floating nodes without polarity orientation concerns during assembly or operation.
Is 1.5KE68CA R0G compliant with ISO 7637-2?
Yes, 1.5KE68CA R0G is explicitly rated to meet ISO 7637-2 Pulse 1 (inductive load dump), Pulse 2a/2b (supply interruption), and Pulse 3a/3b (capacitive coupling) requirements. Its 1500W peak power rating and low clamping voltage ensure effective suppression of these standardized automotive transients without degradation.
What is the maximum clamping voltage of 1.5KE68CA R0G during a surge event?
The maximum clamping voltage of 1.5KE68CA R0G is 98.0V at 16A peak impulse current (IPP), measured under the standard 10/1000μs double-exponential waveform. This value ensures downstream components experience limited overvoltage stress even during worst-case surge conditions.
Does 1.5KE68CA R0G have AEC-Q101 qualification?
Yes, 1.5KE68CA R0G carries AEC-Q101 qualification, confirmed in Taiwan Semiconductor's official documentation. This includes validation across temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD) tests - certifying suitability for automotive electronic control units and safety-critical subsystems.
What is the junction temperature range for 1.5KE68CA R0G?
The junction temperature range for 1.5KE68CA R0G is –55°C to +175°C, supporting operation in under-hood automotive environments and industrial enclosures with wide thermal excursions. This range is maintained across its full rated power dissipation envelope and is validated per JEDEC JESD22-A104.
1.5KE68CA R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE68CA R0G FAQ
1.How can I place an order for 1.5KE68CA R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE68CA R0G 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 1.5KE68CA R0G reliable?
The price and inventory of 1.5KE68CA R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE68CA R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE68CA R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE68CA R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE68CA R0G?
1.5KE68CA R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE68CA R0G 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 1.5KE68CA R0G?
For technical support, including 1.5KE68CA R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE68CA R0G requirements.
6.How does Aetrix verify that 1.5KE68CA R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE68CA R0G 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 1.5KE68CA R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE68CA R0G?
All 1.5KE68CA R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE68CA R0G, 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 1.5KE68CA R0G part is unused and in its original packaging.
Return procedure for 1.5KE68CA R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE68CA R0G Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
