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Taiwan Semiconductor Corporation 1.5KE16CA R0G
- Part No.:
- 1.5KE16CA R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16CA R0G.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:7,160
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Product details
Overview
1.5KE16CA R0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 16V nominal breakdown voltage (VBR min 14.4V, max 17.6V at 1.0mA), 12.9V working stand-off voltage (VWM), and 23.5V clamping voltage (VC) at 67A peak pulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE16CA R0G datasheet, 1.5KE16CA R0G pinout, 1.5KE16CA R0G application, or 1.5KE16CA R0G equivalent, this page delivers verified electrical specs, bidirectional clamping behavior, AEC-Q101 qualification status, DO-201 mechanical data, and real-world ESD/inductive-spike protection use cases - all confirmed from Taiwan Semiconductor's official O2104 datasheet.
Technical Context
The 1.5KE16CA R0G is a junction-based avalanche diode optimized for fast transient suppression. Its bidirectional structure enables symmetrical clamping in both polarities without external polarity management, and its low dynamic impedance ensures stable voltage limiting during 10/1000μs surges up to 1500W.
It operates across –55°C to +175°C junction temperature range and meets ISO 7637-2 immunity requirements for automotive electronics. The device exhibits <1μA leakage above 10V and a VBR temperature coefficient of 0.086%/°C - critical for thermal stability in under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.4V / 17.6V at IT = 1.0mA - defines reliable avalanche onset window for design margining |
| VWM | 12.9V - maximum continuous DC or RMS voltage the device blocks without conduction |
| VC @ IPP | 23.5V at IPP = 67A - clamped voltage seen by protected circuit during worst-case 10/1000μs surge |
| PPK | 1500W - peak pulse power handling per JEDEC standard waveform, derated above 25°C |
| IPP | 67A - peak impulse current capability before clamping voltage exceeds 23.5V |
| TJ max | +175°C - enables placement near high-temperature components like power MOSFETs or engine controllers |
| Package | DO-201 - industry-standard axial-leaded package with UL 94V-0 molding and tin-plated leads |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for unidirectional variants; 1.5KE16CA R0G is bidirectional and marked with part-specific code (no cathode band). Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in reverse bias (for one polarity) | Functions as cathode during opposite-polarity transient - bidirectional symmetry eliminates need for orientation-aware PCB layout |
| Cathode | Current exit point in reverse bias (for one polarity) | Functions as anode during opposite-polarity transient - enables clamping on both voltage polarities without external diode pairing |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Single-device protection for AC-coupled or floating lines - avoids dual-diode discrete solutions and saves board space |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock - suitable for powertrain and body control modules |
| 10/1000μs surge rating | 1500W capability aligns with ISO 7637-2 Pulse 5a (load dump) and Pulse 1/2/3 immunity test levels |
| Fast response time | <5.0ns turn-on - clamps transients before sensitive ICs experience overvoltage stress |
| Low leakage | <1μA at 12.9V - minimizes standby power loss in always-on automotive circuits |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between power input and downstream DC/DC converter or microcontroller LDO. Use Value: Limits rail voltage to ≤23.5V during 1500W surges, preventing latch-up or permanent damage to 3.3V/5V logic supplies. | Use Scenario: Shielding analog sensor inputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Front-end transient absorber before signal conditioning op-amps or ADC input stages. Use Value: Clamps ±23.5V spikes within 5ns, preserving signal integrity and avoiding ADC saturation or op-amp phase reversal. |
| LED Driver Output Protection | RS-485 Bus Line Protection |
Use Scenario: Safeguarding constant-current LED driver outputs against inductive kickback from long wiring harnesses. IC Role / Device Role / Timing Role: Bidirectional shunt clamp across LED string terminals to absorb reverse EMF during switch-off. Use Value: Absorbs 67A peak current without degradation, enabling robust operation in automotive lighting and signage systems. | Use Scenario: Hardening RS-485 transceiver bus lines (A/B) against EFT and lightning-induced surges in factory automation networks. IC Role / Device Role / Timing Role: Common-mode TVS pair (one per line) referenced to ground, leveraging bidirectional symmetry for polarity-agnostic protection. Use Value: Maintains signal eye diagram integrity by clamping common-mode transients to ≤23.5V while adding <1pF parasitic capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ16CA | Same DO-214AC (SMA) package; lower PPK (400W); VBR 14.4–17.6V; VC = 26.0V @ 15.4A | Lower surge capacity suits consumer-grade 24V systems, not ISO 7637-2-compliant automotive designs | Select only when 1500W rating is unnecessary and board space favors surface-mount |
| ON Semiconductor 1.5SMC16CA | DO-214AB (SMC) package; PPK = 1500W; VBR = 14.4–17.6V; VC = 26.0V @ 57.7A; AEC-Q101 qualified | Same power rating but higher clamping voltage reduces margin for 3.3V/5V ICs; SMC footprint requires layout change | Acceptable for cost-sensitive industrial use where 2.5V higher VC is tolerable and through-hole mounting is unavailable |
Compared with SMAJ16CA and 1.5SMC16CA, the 1.5KE16CA R0G uniquely combines DO-201 through-hole robustness, 1500W surge rating, 23.5V clamping, and AEC-Q101 qualification - making it the only option among the three validated for under-hood automotive power rail protection per ISO 7637-2.
Availability
1.5KE16CA R0G is available at Aetrix Electronics and suitable for automotive ECU power supply protection, industrial sensor interface hardening, LED driver output safeguarding, and RS-485 bus line surge suppression requiring stable component supply and long-term lifecycle continuity.
Supply support for 1.5KE16CA 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 for automotive, industrial, and computing markets.
The 1.5KE series was designed specifically for high-energy transient suppression in harsh environments - emphasizing AEC-Q101 compliance, wide temperature operation, and repeatable clamping performance across automotive and industrial power systems.
FAQ
What does the 'CA' suffix indicate in 1.5KE16CA R0G?
The 'CA' suffix in 1.5KE16CA R0G denotes a bidirectional configuration - meaning the device provides symmetrical transient voltage suppression for both positive and negative polarity surges. This eliminates the need for two unidirectional TVS diodes in series-opposition and simplifies layout for AC-coupled or floating signal lines. Unlike unidirectional 'A' variants, 1.5KE16CA R0G has no cathode marking and functions identically in either orientation.
Is 1.5KE16CA R0G AEC-Q101 qualified?
Yes, 1.5KE16CA R0G is AEC-Q101 qualified, as confirmed in Taiwan Semiconductor's official 1.5KE series datasheet (Version O2104). This qualification covers stress tests including temperature cycling, highly accelerated stress testing (HAST), and mechanical shock - validating its suitability for automotive powertrain, body electronics, and infotainment systems where reliability under thermal and vibration stress is mandatory.
What is the clamping voltage of 1.5KE16CA R0G at rated surge current?
The clamping voltage (VC) of 1.5KE16CA R0G is 23.5V at 67A peak pulse current (IPP), measured under the standard 10/1000μs waveform. This value represents the maximum voltage imposed on the protected circuit during worst-case transient events and is critical for ensuring downstream ICs (e.g., 3.3V or 5V regulators) remain within absolute maximum ratings. The low VC reflects the device's low dynamic impedance and efficient energy absorption.
Can 1.5KE16CA R0G replace unidirectional 1.5KE16A in existing designs?
No - 1.5KE16CA R0G cannot directly replace unidirectional 1.5KE16A without circuit review. While both share identical VBR (14.4–17.6V), VWM (12.9V), and PPK (1500W), the 1.5KE16CA R0G is bidirectional and lacks polarity marking, whereas 1.5KE16A requires correct anode/cathode orientation. Substitution may cause unintended conduction in DC-biased rails. Use 1.5KE16CA R0G only where bidirectional clamping is explicitly required.
What is the maximum operating temperature for 1.5KE16CA R0G?
The maximum junction temperature (TJ max) for 1.5KE16CA R0G is +175°C, as specified in Taiwan Semiconductor's absolute maximum ratings table. This allows reliable operation in high-temperature environments such as engine compartments or enclosed industrial enclosures. Derating curves in the datasheet show that peak pulse power must be reduced linearly above 25°C ambient - e.g., to ~1100W at 80°C ambient with no heatsink.
1.5KE16CA 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 70A
- 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
1.5KE16CA R0G FAQ
1.How can I place an order for 1.5KE16CA R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16CA 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 1.5KE16CA R0G reliable?
The price and inventory of 1.5KE16CA R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE16CA R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE16CA R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16CA R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16CA R0G?
1.5KE16CA R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16CA 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 1.5KE16CA R0G?
For technical support, including 1.5KE16CA R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16CA R0G requirements.
6.How does Aetrix verify that 1.5KE16CA R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE16CA 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 1.5KE16CA R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE16CA R0G?
All 1.5KE16CA R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16CA 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 1.5KE16CA R0G part is unused and in its original packaging.
Return procedure for 1.5KE16CA R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16CA R0G Tags
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