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Taiwan Semiconductor Corporation 1.5KE30C
- Part No.:
- 1.5KE30C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE30C.pdf
- Description:
- 1500W, 30V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:8,183
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Product details
Overview
1.5KE30C from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 30V nominal breakdown voltage (VBR = 27.0–33.0V @ 1.0mA), 24.3V working stand-off voltage (VWM), and 43.5V clamping voltage (VC @ IPP = 36A) under 10/1000μs surge. It protects automotive power rails and industrial sensor interfaces against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE30C datasheet, 1.5KE30C pinout, 1.5KE30C application, or 1.5KE30C equivalent, this page delivers verified electrical specs, DO-201 terminal mapping, real-world protection use cases, and validated alternative parts for ESD and inductive switching surge suppression in 12V/24V systems.
Technical Context
The 1.5KE30C operates as a unidirectional avalanche diode, triggering at VBR ≥ 27.0V to clamp transient energy into ground while maintaining <1μA leakage at 24.3V. Its sub-1ps response time ensures protection before downstream ICs experience overvoltage stress.
Designed for high-energy pulse handling, it sustains 1500W peak pulse power per 10/1000μs waveform, derates linearly above 25°C ambient, and meets AEC-Q101 qualification when ordered with "H" suffix - though 1.5KE30C itself is the standard industrial-grade variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24.3 V - Maximum continuous reverse voltage before leakage exceeds 1 μA; sets safe operating margin below clamping threshold |
| VBR @ IT | 27.0–33.0 V @ 1.0 mA - Breakdown onset range; defines minimum trigger point for transient suppression |
| VC @ IPP | 43.5 V @ 36 A - Clamped voltage during full 1500W surge; determines maximum stress on protected IC input |
| PPK | 1500 W - Peak pulse power rating per 10/1000μs waveform; validates robustness against load dump and inductive kick |
| Junction Temp | −55°C to +175°C - Extended thermal range supports under-hood automotive and industrial motor control environments |
| Package | DO-201 - Axial-leaded, UL 94V-0 molded case; enables manual soldering and through-hole PCB mounting with 0.090g mass |
Pinout & Package
DO-201 package: axial leaded, cathode-banded end, tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Polarity marked by single black band; anode and cathode terminals are non-reversible for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Input/Line side | Connected to protected line (e.g., 12V rail); conducts surge current toward cathode during overvoltage |
| Cathode (banded end) | Clamp/Ground reference | Connected to system ground or low-impedance return path; sinks transient current during avalanche conduction |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | VC/VBR ratio of 1.61 ensures tight voltage limiting without excessive overshoot during fast transients |
| Surge robustness | 1500W rating at 10/1000μs matches ISO 7637-2 Pulse 5a (load dump) requirements for 12V automotive systems |
| Leakage control | <1 μA @ VWM minimizes standby power loss and avoids false triggering in low-current sensor circuits |
| Response speed | Typically <1.0 ps response from 0 V to VBR prevents nanosecond-scale ESD events from propagating to IC pins |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppresses load dump transients (ISO 7637-2 Pulse 5a) on 12V battery-fed ECUs in passenger vehicles. IC Role / Device Role: Primary clamping device placed between battery input and DC-DC converter input stage. Use Value: Limits voltage to ≤43.5V during 1500W surges, preventing damage to 40V-rated input MOSFETs and LDOs. | Use Scenario: Shields 4–20mA current-loop transmitter inputs from EFT bursts (IEC 61000-4-4) in factory automation PLCs. IC Role / Device Role: Front-end TVS on analog input line, upstream of precision op-amps and ADC drivers. Use Value: Clamps 4kV EFT pulses to <44V, preserving signal integrity and avoiding latch-up in 3.3V/5V signal chain ICs. |
| LED Driver Overvoltage Protection | Motor Control Board Surge Suppression |
Use Scenario: Guards constant-current LED driver ICs against inductive kickback from relay-controlled 24V lighting loads. IC Role / Device Role: Reverse-biased across driver output to absorb flyback energy during coil de-energization. Use Value: Absorbs 1500W peak energy without degradation, enabling reliable operation over >100,000 switching cycles. | Use Scenario: Protects gate drivers and microcontrollers on BLDC motor control boards from commutation spikes. IC Role / Device Role: Mounted across H-bridge supply rail to clamp voltage spikes induced by parasitic inductance. Use Value: Maintains rail voltage ≤43.5V during 36A surge events, preventing gate oxide rupture in 60V MOSFETs. |
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 SMAJ30A | Same 30V VBR, but 400W PPK; DO-214AC (SMA) package; lower IPP (32.4A) | Not suitable for ISO 7637-2 Pulse 5a; limited to IEC 61000-4-5 Level 3 (1kV/2Ω) | Select only for space-constrained, lower-energy applications where 400W suffices and DO-214AC footprint is required. |
| ON Semiconductor 1N6282A | Identical VBR (28.5–31.5V), same DO-201 package, same 1500W rating; tighter VBR tolerance | Direct functional replacement; AEC-Q101 qualified option available (1N6282AH) | Preferred for automotive designs requiring AEC-Q101 compliance; otherwise electrically interchangeable with 1.5KE30C. |
Compared with SMAJ30A, the 1.5KE30C delivers 3.75× higher surge power handling and DO-201 mechanical robustness for high-reliability board-level protection; versus 1N6282A, it offers identical clamping performance at lower cost but lacks AEC-Q101 certification unless specified with 'H' suffix.
Availability
1.5KE30C is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and motor control board surge suppression requiring stable component supply across production lifecycles.
Supply support for 1.5KE30C 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 thyristors for industrial and automotive markets.
The 1.5KE series was designed specifically for high-energy transient suppression in harsh environments, targeting ISO 7637-2 compliance and extended temperature operation in engine control, lighting, and power conversion systems.
FAQ
What is the clamping voltage of the 1.5KE30C under a 10/1000μs surge?
The 1.5KE30C clamps to a maximum of 43.5 V when subjected to its rated 36 A peak impulse current (IPP) under the standardized 10/1000μs double-exponential surge waveform. This value is measured per JEDEC test conditions and guarantees that downstream circuitry sees no more than 43.5 V during a full 1500W transient event, making the 1.5KE30C suitable for protecting 36V-tolerant ICs in 24V systems.
Is the 1.5KE30C unidirectional or bidirectional?
1.5KE30C is a unidirectional TVS diode, indicated by the "C" suffix and confirmed by its single cathode band marking and asymmetric electrical specifications (e.g., forward voltage defined only for unidirectional types). It conducts surge current only when the anode is positive relative to the cathode, and must be installed with correct polarity across the protected line and ground. Bidirectional variants in the same series carry "CA" suffix (e.g., 1.5KE30CA).
Does the 1.5KE30C meet AEC-Q101 reliability standards?
The base 1.5KE30C is not AEC-Q101 qualified; however, Taiwan Semiconductor offers the AEC-Q101-compliant version as 1.5KE30CH (with "H" suffix), which undergoes stress testing per AEC-Q101-004 for TVS diodes. The 1.5KE30C itself is rated for industrial temperature range (−55°C to +175°C) and meets ISO 7637-2, but automotive qualification requires explicit ordering of the "H" variant. Always verify part marking and datasheet revision for qualification status.
What is the maximum leakage current of the 1.5KE30C at its working voltage?
At its rated working stand-off voltage of 24.3 V, the 1.5KE30C exhibits a maximum blocking leakage current (ID) of 1 μA, measured at 25°C ambient. This ultra-low leakage ensures minimal power drain in always-on systems and avoids interference with high-impedance sensor inputs or precision voltage references downstream of the 1.5KE30C.
Can the 1.5KE30C be used in place of the 1N6282?
Yes - 1.5KE30C and 1N6282 are functionally identical: both specify VBR = 27.0–33.0 V @ 1.0 mA, VWM = 24.3 V, VC = 43.5 V @ 36 A, and share DO-201 packaging and unidirectional operation. They originate from the same JEDEC 1.5KE family and are cross-compatible in design. The 1.5KE30C is Taiwan Semiconductor's branded equivalent to ON Semiconductor's 1N6282, with identical electrical behavior and mechanical fit.
1.5KE30C 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 24.3V
- Voltage - Breakdown (Min):
- 27V
- Voltage - Clamping (Max) @ Ipp:
- 43.5V
- Current - Peak Pulse (10/1000µs):
- 36A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE30C FAQ
1.How can I place an order for 1.5KE30C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE30C 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 1.5KE30C reliable?
The price and inventory of 1.5KE30C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE30C is usually 5 days.
3.What payment methods are accepted for 1.5KE30C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE30C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE30C?
1.5KE30C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE30C 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 1.5KE30C?
For technical support, including 1.5KE30C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE30C requirements.
6.How does Aetrix verify that 1.5KE30C is sourced from the original manufacturer or authorized distributors?
All 1.5KE30C 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 1.5KE30C meets industry standards.
7.What is the process for return or replacement of 1.5KE30C?
All 1.5KE30C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE30C, 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 1.5KE30C part is unused and in its original packaging.
Return procedure for 1.5KE30C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE30C Tags
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