My Inquiry
My Account
Taiwan Semiconductor Corporation 1.5KE30CA A0G
- Part No.:
- 1.5KE30CA A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE30CA A0G.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,996
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE30CA A0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 30V, working stand-off voltage 24.3V, clamping voltage 43.5V at 36A peak pulse current, and fast response time <5.0ns - used for ESD and surge protection in automotive power rails and industrial I/O interfaces.
For engineers reviewing the 1.5KE30CA A0G datasheet, 1.5KE30CA A0G pinout, 1.5KE30CA A0G application, or 1.5KE30CA A0G equivalent, key selection criteria include bidirectional clamping capability, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, AEC-Q101 qualification status, and DO-201 mechanical compatibility with standard PCB footprints.
Technical Context
The 1.5KE30CA A0G is a junction-based silicon avalanche diode optimized for unidirectional and bidirectional transient suppression. It operates by entering avalanche breakdown when reverse voltage exceeds VBR (27.0–33.0V), limiting clamped voltage to ≤43.5V at 36A IPP under 10/1000μs waveform.
Its low dynamic impedance and sub-5ns response ensure effective protection against fast transients like EFT and load dump. The device meets ISO 7637-2 immunity requirements and supports operation across -55°C to +175°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1mA | 27.0–33.0V - defines minimum and maximum voltage at which avalanche conduction begins, critical for margining against system overvoltage thresholds |
| VWM | 24.3V - maximum continuous reverse operating voltage before leakage rises significantly; sets upper limit for normal circuit bias |
| VC @ IPP = 36A | 43.5V - clamped voltage during 10/1000μs surge; determines worst-case stress on downstream ICs |
| PPK | 1500W - peak pulse power handling capacity; defines survivability under standardized surge events |
| IR @ VWM | <1μA - ultra-low leakage ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max | +175°C - enables use in under-hood automotive environments and high-power industrial enclosures without derating |
| Package | DO-201 - industry-standard axial leaded package with 0.090g mass, UL 94V-0 molding, and tin-plated leads per J-STD-002 |
Pinout & Package
DO-201 package: axial-leaded, cylindrical glass-passivated body with cathode band marking for polarity identification. Bidirectional operation means both terminals are functionally symmetric; no dedicated anode/cathode assignment required in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Both terminals conduct equally in either direction during overvoltage event; no DC polarity dependency |
| Leads (Tin-plated) | PCB interface & thermal path | Solderable per J-STD-002; thermal resistance reduced via copper pad mounting (0.6" × 0.6") |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled lines or floating buses without polarity concerns |
| ISO 7637-2 compliance | Validated performance against automotive transient pulses (Pulse 1, 2a, 2b, 3a, 3b) without external filtering |
| AEC-Q101 qualified | Qualified for automotive-grade reliability including temperature cycling, humidity, and mechanical shock testing |
| 10/1000μs surge rating | Rated for 1500W peak power under standardized long-duration surge waveform used in industrial EMC standards |
| Low clamping ratio (VC/VBR) | 1.39 typical (43.5V/31.5V) - minimizes voltage overshoot while maintaining robust surge margin |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 24V CAN bus power supply from load dump and jump-start transients in commercial vehicles. IC Role / Device Role / Timing Role: TVS diode placed across input rail to clamp surges before they reach DC-DC converter and CAN transceiver. Use Value: Limits transient voltage to ≤43.5V, preventing damage to 36V-rated input stages and ensuring uninterrupted communication during ISO 7637-2 Pulse 5a events. | Use Scenario: Safeguarding analog output of 4–20mA current-loop transmitter against EFT coupling from adjacent motor drives. IC Role / Device Role / Timing Role: Bidirectional TVS connected between loop+ and loop− to absorb differential-mode noise and common-mode surges. Use Value: Sub-5ns response captures fast EFT bursts (IEC 61000-4-4), preserving signal fidelity and avoiding false triggering of downstream PLC inputs. |
| LED Driver Input Stage | RS-485 Transceiver Port |
Use Scenario: Shielding constant-current LED driver IC from inductive kickback caused by relay-controlled mains switching. IC Role / Device Role / Timing Role: TVS mounted across driver input capacitor to shunt energy from 100V/10ms inductive spikes. Use Value: 1500W peak power rating absorbs full energy of worst-case relay bounce, eliminating need for additional snubbers or derating. | Use Scenario: Protecting RS-485 transceiver pins (A/B) against lightning-induced surges in outdoor building automation networks. IC Role / Device Role / Timing Role: Bidirectional TVS placed differentially across A/B lines and common-mode to ground to handle both modes. Use Value: Symmetrical clamping ensures equal protection regardless of line polarity reversal; DO-201 footprint allows compact placement near connector. |
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 SMAJ33CA | 600W rating, SMA package, lower VC (53.3V @ 11.8A), higher VBR (29.7–36.3V) | Lower surge capacity suits consumer-grade 24V systems; surface-mount only | Select when board space is constrained and surge severity is moderate (IEC 61000-4-5 Level 3) |
| ON Semiconductor 1.5SMC33CA | 1500W rating, SMC package, same VBR range (29.7–36.3V), VC = 53.3V @ 28.3A | Higher clamping voltage increases stress on protected ICs; larger SMC footprint | Prefer when existing design uses SMC footprint and AEC-Q101 is not required |
Compared with 1.5KE30CA A0G, SMAJ33CA offers smaller size but reduced surge margin, while 1.5SMC33CA matches power rating but raises clamping voltage by 9.8V - making 1.5KE30CA A0G optimal for automotive and high-reliability industrial designs requiring lowest possible VC and AEC-Q101 validation.
Availability
1.5KE30CA A0G is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and LED lighting systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1.5KE30CA A0G 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 qualification, ISO 7637-2 compliance, and robust DO-201 packaging for under-hood and factory-floor deployment.
FAQ
What does the 'CA' suffix indicate in 1.5KE30CA A0G?
The 'CA' suffix in 1.5KE30CA A0G denotes bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, unlike 'A' (unidirectional) variants. This enables use in AC-coupled or floating signal paths without polarity constraints, and is confirmed in TSC's 1.5KE Series documentation for types 1.5KE6.8 through 1.5KE440.
Is 1.5KE30CA A0G AEC-Q101 qualified?
Yes, 1.5KE30CA A0G is AEC-Q101 qualified. The 'A0G' ordering code indicates AEC-Q101 qualification and ammo box packaging (500 units). TSC explicitly states AEC-Q101 qualification as a feature for the 1.5KE series, and the 'H' or 'A0G' suffixes denote this qualification per their ordering information table.
What is the maximum clamping voltage for 1.5KE30CA A0G at rated surge current?
The maximum clamping voltage (VC) for 1.5KE30CA A0G is 43.5V at 36A peak impulse current (IPP), measured under the standard 10/1000μs double-exponential surge waveform. This value is specified in TSC's Electrical Specifications table for the 1.5KE30A variant, which shares identical electrical characteristics with 1.5KE30CA A0G except for polarity.
Can 1.5KE30CA A0G be used in place of unidirectional 1.5KE30A?
No - 1.5KE30CA A0G is bidirectional and cannot replace unidirectional 1.5KE30A in DC-biased applications where forward conduction must be blocked. While both share identical VBR (27.0–33.0V) and VC (43.5V), the CA version conducts in both directions above VBR, potentially shorting DC rails. Use only where bidirectional clamping is intentionally required.
What is the thermal derating behavior of 1.5KE30CA A0G above 25°C ambient?
1.5KE30CA A0G follows standard JEDEC derating: peak pulse power decreases linearly above 25°C ambient, reaching ~50% of 1500W at 100°C ambient when mounted on a 0.6" × 0.6" copper pad. Full derating curve is provided in Figure 2 of TSC's 1.5KE Series datasheet (Version O2104), confirming usable surge capability up to +125°C ambient with appropriate PCB layout.
1.5KE30CA A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 38A
- 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
1.5KE30CA A0G FAQ
1.How can I place an order for 1.5KE30CA A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE30CA A0G 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 1.5KE30CA A0G reliable?
The price and inventory of 1.5KE30CA A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE30CA A0G is usually 5 days.
3.What payment methods are accepted for 1.5KE30CA A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE30CA A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE30CA A0G?
1.5KE30CA A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE30CA A0G 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 1.5KE30CA A0G?
For technical support, including 1.5KE30CA A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE30CA A0G requirements.
6.How does Aetrix verify that 1.5KE30CA A0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE30CA A0G 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 1.5KE30CA A0G meets industry standards.
7.What is the process for return or replacement of 1.5KE30CA A0G?
All 1.5KE30CA A0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE30CA A0G, 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 1.5KE30CA A0G part is unused and in its original packaging.
Return procedure for 1.5KE30CA A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE30CA A0G 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…
