My Inquiry
My Account
Taiwan Semiconductor Corporation 1V5KE30A
- Part No.:
- 1V5KE30A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE30A.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:8,968
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1V5KE30A from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 28.5V minimum breakdown voltage (VBR), 25.6V reverse stand-off voltage (VRWM), and 41.4V clamping voltage (VC) at 36.2A peak pulse current. It protects power rails and I/O lines in industrial motor drives, AC/DC power supplies, and telecom surge interfaces.
For engineers reviewing the 1V5KE30A datasheet, 1V5KE30A pinout, 1V5KE30A application, or 1V5KE30A equivalent, key selection criteria include its 1ms 1500W pulse rating, low 0.09g weight, glass-passivated junction for reliability, and compliance with RoHS and halogen-free standards per IEC 61249-2-21.
Technical Context
The 1V5KE30A operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds VRWM = 25.6V and fully clamps at VC = 41.4V under 36.2A 10/1000μs surge. Its glass-passivated junction ensures stable leakage (<1μA above 10V) and robust ESD/FTB immunity.
Designed for single-pulse transient suppression, it supports 200A non-repetitive forward surge (IFSM) and operates across -55°C to +175°C junction temperature range. The DO-201 package provides mechanical robustness 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 |
|---|---|
| VRWM | 25.6 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 28.5 V / 31.5 V - Breakdown voltage range at 1 mA test current; defines turn-on threshold tolerance |
| VC @ IPPM | 41.4 V - Clamping voltage at 36.2 A peak pulse current; determines maximum protected circuit stress |
| PPPM | 1500 W - Peak pulse power dissipation capability for 1 ms 10/1000μs waveform |
| IR @ VRWM | <1 μA - Reverse leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max | +175 °C - Maximum junction temperature enables use in high-ambient industrial environments |
| Package | DO-201 - Axial-leaded through-hole package with 0.090 g mass, UL 94V-0 rated epoxy, and JESD 201 Class 2 whisker resistance |
Pinout & Package
DO-201 package: axial-leaded, cylindrical body with cathode band marking. Cathode terminal is marked by a band; anode is unmarked lead. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / low-side reference | Connected to ground or lower potential node; carries surge current during clamping |
| Cathode | Reverse-biased clamping node / protected line connection | Connected to the line being protected (e.g., DC bus, signal rail); conducts avalanche current when VREV > VRWM |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500W 1ms peak pulse rating | Withstands IEC 61000-4-5 Level 4 (4kV) surges without degradation in typical 24–48V industrial systems |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for downstream ICs |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and global environmental regulations for automotive and industrial end equipment |
| Fast response time (<1 ps) | Clamps transients before sensitive logic or analog circuitry experiences overvoltage damage |
Applications
| Industrial Motor Drive Protection | AC/DC Power Supply Input Stage |
|---|---|
Use Scenario: Suppresses inductive kickback from relay coils, contactors, and brushed DC motors in PLC output modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed across coil terminals to clamp flyback voltage spikes up to 1500W. Use Value: Prevents MOSFET gate oxide failure and microcontroller reset events caused by >100V transients on 24V control rails. |
Use Scenario: Installed across bulk capacitor input of offline SMPS to absorb line surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary-side transient limiter absorbing 10/1000μs surges before rectifier and PFC stage. Use Value: Maintains VC = 41.4V clamping level to keep input voltage within safe operating area of 600V bridge rectifiers and controllers. |
| Telecom Line Interface Protection | Automotive Body Control Module (BCM) |
Use Scenario: Protects RS-485 transceivers and Ethernet PHYs against lightning-induced surges on outdoor data lines. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC rail and signal lines to limit common-mode transients. Use Value: Delivers <1μA leakage at 25.6V to avoid loading low-power bias networks while clamping to 41.4V. |
Use Scenario: Shields LIN bus transceivers and microcontroller I/O pins from load dump and jump-start transients in 12V vehicle systems. IC Role / Device Role / Timing Role: Secondary-level TVS on 5V/3.3V regulator outputs and sensor inputs. Use Value: Withstands 175°C junction temperature during under-hood thermal cycling and maintains stable VBR tolerance over lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | Lower 600W rating; SMA package (smaller footprint, lower thermal mass); VC = 48.4V at 12.3A | Better suited for space-constrained PCBs with moderate surge exposure (IEC 61000-4-5 Level 2) | Select SMBJ30A when board area is critical and peak surge energy is ≤600W; verify thermal derating in enclosed enclosures. |
| 1N6282A | Same family, identical specs and DO-201 package; JEDEC-standardized part number for 1V5KE30A | No functional difference; used interchangeably in legacy designs and military/aerospace BOMs | Choose 1N6282A for compliance with JEDEC-standardized procurement or where cross-manufacturer sourcing is required. |
Compared with SMBJ30A and 1N6282A, the 1V5KE30A offers higher surge robustness (1500W vs. 600W) in the same DO-201 form factor as 1N6282A, making it optimal for high-energy industrial transients where thermal mass and clamping precision are critical.
Availability
1V5KE30A is available at Aetrix Electronics and suitable for industrial motor drives, AC/DC power supplies, and telecom line interface protection requiring stable component supply and long-lifecycle support.
Supply support for 1V5KE30A 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, and rectifiers with ISO 9001 and IATF 16949 certification.
The 1V5KE30A belongs to TSC's 1500W unidirectional TVS family designed specifically for high-energy transient suppression in industrial automation, power conversion, and infrastructure equipment.
FAQ
What is the clamping voltage of the 1V5KE30A under maximum rated surge current?
The 1V5KE30A has a clamping voltage (VC) of 41.4 V at 36.2 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and defines the maximum voltage seen by downstream circuitry during a full-rated transient event. The 1V5KE30A maintains this clamping performance across its specified operating temperature range.
Is the 1V5KE30A suitable for bidirectional transient protection?
No - the 1V5KE30A is a unidirectional TVS diode and must be used with correct polarity: cathode toward the protected line, anode to ground. For bidirectional protection, the equivalent part is 1V5KE30CA (with "C" suffix), which provides symmetrical clamping in both directions. Using 1V5KE30A in reverse-biased configuration without proper circuit design risks permanent failure.
What is the maximum junction temperature rating for the 1V5KE30A?
The 1V5KE30A has a maximum junction temperature (TJ) rating of +175°C, enabling reliable operation in high-ambient environments such as industrial control cabinets, under-hood automotive locations, and enclosed power supplies. Derating curves in the datasheet specify power dissipation limits above +75°C ambient, based on 0.375-inch lead length.
How does the 1V5KE30A compare to the SMBJ30A in terms of surge handling capability?
The 1V5KE30A delivers 1500W peak pulse power (1ms), more than double the 600W rating of the SMBJ30A. Its DO-201 package also provides greater thermal mass and higher IFSM (200A vs. 100A), making the 1V5KE30A better suited for high-energy transients like motor commutation spikes or AC line surges. The SMBJ30A is optimized for compact layouts with lower surge exposure.
Does the 1V5KE30A meet RoHS and halogen-free requirements?
Yes - the 1V5KE30A is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and its pure tin-plated leads comply with J-STD-002 solderability standards. These certifications are verified in TSC's official product documentation and supported by material declarations.
1V5KE30A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AD, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- 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-201AD
1V5KE30A FAQ
1.How can I place an order for 1V5KE30A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE30A 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 1V5KE30A reliable?
The price and inventory of 1V5KE30A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE30A is usually 5 days.
3.What payment methods are accepted for 1V5KE30A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE30A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE30A?
1V5KE30A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE30A 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 1V5KE30A?
For technical support, including 1V5KE30A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE30A requirements.
6.How does Aetrix verify that 1V5KE30A is sourced from the original manufacturer or authorized distributors?
All 1V5KE30A 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 1V5KE30A meets industry standards.
7.What is the process for return or replacement of 1V5KE30A?
All 1V5KE30A units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE30A, 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 1V5KE30A part is unused and in its original packaging.
Return procedure for 1V5KE30A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1V5KE30A 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…
