My Inquiry
My Account
Taiwan Semiconductor Corporation 1.5KE100
- Part No.:
- 1.5KE100
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE100.pdf
- Description:
- 1500W, 100V, 10%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:4,789
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE100 from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a nominal breakdown voltage of 100 V, clamping voltage of 144 V at 10.9 A peak pulse current, working stand-off voltage of 81.0 V, and operates within -55°C to +175°C junction temperature range - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the 1.5KE100 datasheet, 1.5KE100 pinout, 1.5KE100 application, or 1.5KE100 equivalent, key selection criteria include its DO-201 package compatibility, 10/1000 μs surge rating, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, low dynamic impedance, and unidirectional polarity marking for correct PCB orientation.
Technical Context
The 1.5KE100 implements a silicon avalanche diode structure optimized for fast transient suppression with sub-nanosecond response (<1.0 ps from 0 V to VBR). Its unidirectional configuration enables asymmetric clamping on positive-going transients while blocking reverse leakage below 1 μA at 85.5 V.
Thermal performance is defined by a 175°C maximum junction temperature and 5 W steady-state power dissipation at 75°C lead temperature, requiring copper pad heatsinking per JEDEC standard mounting conditions. The device meets AEC-Q101 qualification when ordered with "H" suffix, though 1.5KE100 itself is the base industrial-grade variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1.0 mA | 90–110 V - ensures reliable avalanche conduction onset within ±10% tolerance at rated test current |
| VWM | 81.0 V - maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPP = 10.9 A | 144 V - clamped voltage during 10/1000 μs surge, defining protected circuit's worst-case overvoltage exposure |
| PPK | 1500 W - peak non-repetitive surge power handling capability under standardized waveform |
| IPP max | 10.9 A - maximum peak impulse current the device safely diverts without failure |
| Junction temp. range | -55°C to +175°C - supports operation in under-hood automotive and industrial ambient environments |
| Package | DO-201 - axial-leaded through-hole package with tin-plated leads compliant to J-STD-002 solderability |
Pinout & Package
1.5KE100 uses the DO-201 package: axial-leaded, molded epoxy case with cathode band marking. Leads are pure tin-plated, RoHS-compliant, and meet JESD201 Class 2 whisker resistance. Weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or return path; defines forward conduction direction in unidirectional operation |
| Cathode | High-side surge input terminal | Marked with band; connects to protected line; conducts avalanche current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Surge rating | 1500 W at 10/1000 μs - sustains high-energy transients common in load dump and inductive switching events |
| Clamping ratio (VC/VBR) | 1.44 - low ratio indicates efficient voltage limiting with minimal overvoltage margin beyond breakdown |
| Dynamic impedance | Typically < 1 Ω - ensures minimal voltage rise under high di/dt surge conditions |
| Leakage current | < 1 μA at 85.5 V - enables low-power standby operation without system loading |
| Response time | < 1.0 ps - enables protection of fast-edge digital signals and microcontroller I/O pins |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 12 V battery-fed ECU power rail exposed to ISO 7637-2 Pulse 1 (inductive load dump) and Pulse 2b (switching transients). IC Role / Device Role: Unidirectional TVS placed between VIN and GND to clamp surges before DC-DC converter input stage. Use Value: Limits transient voltage to ≤144 V, preventing damage to downstream regulators rated for 16 V input max. |
Use Scenario: 4–20 mA current loop interface in factory automation PLC modules subjected to EFT bursts per IEC 61000-4-4. IC Role / Device Role: TVS mounted across loop terminals to shunt fast transients away from precision op-amp and ADC front-end. Use Value: Maintains signal integrity by suppressing >1 kV EFT pulses to <150 V within nanoseconds, avoiding ADC saturation or latch-up. |
| LED Driver Overvoltage Clamp | Motor Control Board DC Bus Protection |
|
Use Scenario: Constant-current LED driver IC powered from 24 V supply in outdoor signage, subject to lightning-induced surges on long cable runs. IC Role / Device Role: 1.5KE100 placed across input capacitor to absorb induced energy before it reaches driver IC's internal FETs. Use Value: Clamps 1500 W surges without degradation, preserving LED lifetime and avoiding catastrophic driver failure. |
Use Scenario: H-bridge motor control board with 100 V DC bus driving brushed DC motors in HVAC actuators. IC Role / Device Role: TVS connected between DC+ and GND to suppress back-EMF spikes generated during PWM commutation. Use Value: Withstands repetitive 10.9 A peak currents at 100 V standoff, preventing MOSFET avalanche failure and gate oxide stress. |
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 SMAJ100A | Same DO-214AC (SMA) package; lower PPK = 400 W; VC = 166 V @ 2.4 A | Lower surge capacity suits consumer-grade 24 V systems; not suitable for ISO 7637-2 Pulse 1 compliance | Select when space-constrained SMT layout required and surge energy is ≤400 W |
| ON Semiconductor 1.5SMC100A | DO-214AB (SMC) package; PPK = 1500 W; VC = 156 V @ 9.6 A; higher clamping voltage than 1.5KE100 | Compatible with same PCB footprint as other SMC devices but requires larger board area than DO-201 | Choose for SMT assembly compatibility where DO-201 through-hole is unavailable |
Compared with Littelfuse SMAJ100A and ON Semi 1.5SMC100A, the 1.5KE100 delivers superior clamping performance (144 V vs. ≥156 V) in a cost-effective through-hole DO-201 package, making it optimal for high-reliability industrial and automotive power rail protection where layout flexibility and surge margin are critical.
Availability
1.5KE100 is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface hardening, LED driver overvoltage clamp, motor control DC bus protection, and lighting system surge resilience requiring stable component supply across extended production lifecycles.
Supply support for 1.5KE100 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, specializing in TVS diodes, rectifiers, and power management components since 1979.
The 1.5KE series was developed for robust, high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications where reliability under repeated surge stress is mandatory.
FAQ
What is the breakdown voltage tolerance for 1.5KE100?
The 1.5KE100 has a specified breakdown voltage (VBR) range of 90 V to 110 V at 1.0 mA test current, representing a ±10% tolerance around the nominal 100 V rating. This tolerance is verified per JEDEC test conditions and applies to all units meeting Taiwan Semiconductor's industrial-grade specifications.
Is 1.5KE100 suitable for bidirectional transient protection?
No, 1.5KE100 is a unidirectional TVS diode and must be used only in polarity-sensitive configurations with cathode connected to the protected line. For bidirectional protection, the 1.5KE100CA variant (with "CA" suffix) is required - it provides symmetrical clamping in both directions and is explicitly designated for bipolar applications.
What is the maximum clamping voltage of 1.5KE100 under surge conditions?
The 1.5KE100 clamps to a maximum of 144 V when subjected to its rated 10.9 A peak pulse current under the standard 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit seen by downstream circuitry during surge events.
Does 1.5KE100 meet AEC-Q101 qualification?
The base 1.5KE100 part is not AEC-Q101 qualified; however, the 1.5KE100H variant (with "H" suffix) is fully AEC-Q101 qualified for automotive use. Both share identical electrical parameters, but only the "H" version undergoes accelerated stress testing per AEC-Q101 requirements for temperature cycling, humidity, and mechanical shock.
What is the thermal derating behavior of 1.5KE100 above 25°C ambient?
1.5KE100's peak pulse power rating decreases linearly above 25°C ambient per Taiwan Semiconductor's Fig.2 derating curve - dropping to ~75% of 1500 W at 75°C and to zero at 175°C junction temperature. Derating is based on thermal resistance from junction-to-lead and requires adequate copper pad area (0.6" × 0.6") for specified ratings.
1.5KE100 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 81V
- Voltage - Breakdown (Min):
- 90V
- Voltage - Clamping (Max) @ Ipp:
- 144V
- Current - Peak Pulse (10/1000µs):
- 10.9A
- 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
1.5KE100 FAQ
1.How can I place an order for 1.5KE100 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE100 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 1.5KE100 reliable?
The price and inventory of 1.5KE100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE100 is usually 5 days.
3.What payment methods are accepted for 1.5KE100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE100?
1.5KE100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE100 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 1.5KE100?
For technical support, including 1.5KE100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100 requirements.
6.How does Aetrix verify that 1.5KE100 is sourced from the original manufacturer or authorized distributors?
All 1.5KE100 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 1.5KE100 meets industry standards.
7.What is the process for return or replacement of 1.5KE100?
All 1.5KE100 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100, 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 1.5KE100 part is unused and in its original packaging.
Return procedure for 1.5KE100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE100 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…
