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Taiwan Semiconductor Corporation 1.5KE120A R0G
- Part No.:
- 1.5KE120A R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE120A R0G.pdf
- Description:
- TVS DIODE 102VWM 165VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:5,087
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Product details
Overview
1.5KE120A R0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 120V nominal breakdown voltage (VBR = 114–126 V @ 1.0 mA), 102 V working stand-off voltage (VWM), 165 V maximum clamping voltage (VC) at 9.5 A peak impulse current, and <1.0 ps response time. It protects automotive power rails and industrial control inputs against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE120A R0G datasheet, 1.5KE120A R0G pinout, 1.5KE120A R0G application, or 1.5KE120A R0G equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD tolerance, leakage current at operating bias, thermal derating under sustained surge conditions, and AEC-Q101 qualification status for automotive deployment.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: it remains high-impedance below VWM (102 V), triggers avalanche conduction at VBR (114–126 V), and clamps transient energy to ≤165 V at 9.5 A (10/1000 µs waveform). Its low dynamic impedance ensures minimal overshoot during fast transients.
Designed for single-polarity DC systems, it supports 200 A non-repetitive forward surge (IFSM) and exhibits <1 µA blocking leakage above 10 V. Junction temperature range is –55°C to +175°C, with UL 94V-0 molding compound and pure tin-plated leads compliant with J-STD-002 solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT=1.0 mA | 114–126 V - defines precise avalanche onset threshold for reliable triggering |
| VWM | 102 V - maximum continuous reverse voltage before leakage exceeds 1 µA |
| VC @ IPP=9.5 A | 165 V - clamped voltage during 10/1000 µs surge; determines protected circuit overvoltage stress |
| PPK | 1500 W - peak pulse power handling per JEDEC standard; enables robust EFT/ISO 7637-2 compliance |
| Response Time | <1.0 ps - ensures sub-nanosecond turn-on for fast-rising transients (e.g., inductive switch-off) |
| TJ Range | –55°C to +175°C - supports under-hood automotive and industrial ambient extremes |
| Package | DO-201 - industry-standard axial leaded package with 0.090 g mass and UL 94V-0 flammability rating |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy-molded body with cathode band marking polarity. 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 | Ground reference terminal | Connected to system ground or low-side return; carries full surge current during clamping |
| Cathode | Protected line input | Connected to line being protected (e.g., 12 V rail); blocks reverse voltage up to VWM, avalanches at VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per AEC specification |
| 1500 W surge rating | Withstands ISO 7637-2 Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (EFT) without degradation |
| Clamping voltage ≤165 V | Provides ≥23% margin below typical 200 V absolute maximum rating of 12 V automotive microcontrollers |
| Leakage <1 µA @ VWM | Minimizes standby power loss in always-on vehicle modules (e.g., CAN wake-up circuits) |
| DO-201 mechanical robustness | UL 94V-0 compound and 0.375" lead length support 5 W steady-state dissipation on 16 mm × 16 mm copper pad |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 12 V battery-supplied ECUs exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and GND, upstream of LDOs and MCU power pins. Use Value: Clamps transients to ≤165 V within <1 ps, preventing latch-up or gate oxide damage in 3.3 V/5 V logic powered from regulated 12 V rails. | Use Scenario: 24 V digital input modules receiving signals from field sensors subject to EFT and surge coupling. IC Role / Device Role / Timing Role: Front-end protection device across input terminals, referenced to common-mode ground. Use Value: Limits coupled transients to safe levels for optocoupler or Schmitt-trigger input stages, maintaining IEC 61000-4-4 Level 4 immunity. |
| LED Driver Overvoltage Clamp | DC Motor Control Board Protection |
Use Scenario: Constant-current LED drivers in commercial lighting subjected to hot-swap and cable discharge events. IC Role / Device Role / Timing Role: Parallel-connected TVS at driver output to absorb inductive kickback and ESD. Use Value: Prevents overvoltage failure of MOSFET switches and current-sense amplifiers by clamping to 165 V with <1 µA leakage at 102 V operating bias. | Use Scenario: H-bridge motor controllers experiencing back-EMF spikes during PWM commutation and emergency stop. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; this unidirectional part protects supply rail side only (VCC-to-GND). Use Value: Absorbs repetitive 1500 W surges without parameter shift, enabling >100,000 cycle reliability in factory automation drives. |
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 SMAJ120A | Same DO-214AC (SMA) package; 120 V VBR (114–126 V), 165 V VC @ 9.5 A, but rated 400 W (not 1500 W) | Lower peak power limits use to low-energy ESD/EFT only; unsuitable for ISO 7637-2 Pulse 1 load dump | Select only for space-constrained PCBs where surge energy is limited to <400 W |
| ON Semiconductor 1N6297A | Identical electrical specs (JEDEC 1.5KE120A equivalent), same DO-201 package, but no AEC-Q101 qualification stated in datasheet | Acceptable for industrial use; not validated for automotive temperature cycling or humidity testing | Prefer 1.5KE120A R0G when AEC-Q101 compliance is contractually required |
Compared with SMAJ120A, 1.5KE120A R0G delivers 3.75× higher surge power handling for load dump immunity; compared with 1N6297A, it adds documented AEC-Q101 qualification-critical for Tier 1 automotive BOM acceptance without additional component-level validation.
Availability
1.5KE120A R0G is available at Aetrix Electronics and suitable for automotive ECU power protection, industrial PLC input hardening, LED driver overvoltage clamping, and DC motor controller rail stabilization requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE120A 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The 1.5KE series targets high-energy transient suppression in harsh environments, with design emphasis on AEC-Q101 reliability, tight VBR tolerances, and consistent clamping performance across –55°C to +175°C junction temperature.
FAQ
What is the clamping voltage of the 1.5KE120A R0G under a 10/1000 µs surge?
The 1.5KE120A R0G clamps to a maximum of 165 V when subjected to a 9.5 A peak impulse current with a 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees that protected downstream components experience no more than 165 V during such transients. The 1.5KE120A R0G maintains this clamping performance across its full operating temperature range.
Is the 1.5KE120A R0G suitable for automotive applications?
Yes, the 1.5KE120A R0G is AEC-Q101 qualified and explicitly designed for automotive use. It meets ISO 7637-2 Pulse 1 (load dump), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (electrical fast transients) requirements. Its –55°C to +175°C junction temperature range and validated reliability testing make the 1.5KE120A R0G appropriate for engine control units, body control modules, and ADAS power supplies.
What is the difference between 1.5KE120A R0G and 1.5KE120 R0G?
The "A" suffix in 1.5KE120A R0G denotes tighter VBR tolerance: 114–126 V (±5%) versus 108–132 V (±10%) for the non-A version. Both share identical DO-201 packaging, 1500 W rating, and clamping voltage. The 1.5KE120A R0G provides improved consistency in trigger point across production lots, critical for designs with narrow voltage margins between VWM and IC absolute maximum ratings.
Does the 1.5KE120A R0G have bidirectional capability?
No, the 1.5KE120A R0G is a unidirectional TVS diode, intended for DC line-to-ground protection only. Its cathode band marks the protected line connection; anode connects to ground. For bidirectional protection (e.g., AC signal lines or data buses), a separate bipolar part like 1.5KE120CA would be required. The 1.5KE120A R0G does not conduct in forward bias beyond its specified VF (~3.5 V @ 50 A).
What is the maximum steady-state power dissipation for the 1.5KE120A R0G?
The 1.5KE120A R0G has a steady-state power dissipation (PD) rating of 5 W when mounted on a 0.6" × 0.6" (16 mm × 16 mm) copper pad at lead temperature TL = 75°C. This value assumes proper PCB thermal relief and is distinct from its 1500 W non-repetitive surge rating. Continuous power handling must remain below 5 W to avoid exceeding the 175°C maximum junction temperature. The 1.5KE120A R0G's low leakage (<1 µA @ 102 V) minimizes static power loss in most applications.
1.5KE120A 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 9.5A
- 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
1.5KE120A R0G FAQ
1.How can I place an order for 1.5KE120A R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE120A 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 1.5KE120A R0G reliable?
The price and inventory of 1.5KE120A R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE120A R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE120A R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE120A R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE120A R0G?
1.5KE120A R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE120A 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 1.5KE120A R0G?
For technical support, including 1.5KE120A R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE120A R0G requirements.
6.How does Aetrix verify that 1.5KE120A R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE120A 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 1.5KE120A R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE120A R0G?
All 1.5KE120A R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE120A 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 1.5KE120A R0G part is unused and in its original packaging.
Return procedure for 1.5KE120A R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE120A R0G Tags
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