My Inquiry
My Account
Taiwan Semiconductor Corporation 1.5KE22A R0G
- Part No.:
- 1.5KE22A R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE22A R0G.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,949
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE22A R0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 22V, minimum VBR 20.9V at 1mA, maximum clamping voltage 30.6V at 51A peak pulse current, and working stand-off voltage 18.8V - designed for automotive ECU power rail protection against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE22A R0G datasheet, 1.5KE22A R0G pinout, 1.5KE22A R0G application, or 1.5KE22A R0G equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, clamping performance under 10/1000μs surge, thermal derating behavior, and real-world use cases in automotive and industrial power systems.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VWM = 18.8V, then avalanches rapidly (<1.0ps response) to clamp transient energy when voltage exceeds VBR = 20.9–23.1V at 1mA test current. Its 1500W peak pulse power rating applies at TA = 25°C and derates linearly above that temperature per Fig.2.
It supports unidirectional surge suppression only, with forward voltage VF = 3.5V at IF = 50A (per spec note for VBR ≤ 200V), junction temperature range −55°C to +175°C, and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for the DO-201 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1mA | 20.9–23.1V - defines precise avalanche onset threshold for reliable overvoltage triggering |
| VWM | 18.8V - maximum continuous DC or RMS voltage the device blocks without leakage exceeding 1µA |
| VC @ IPP = 51A | 30.6V - clamped voltage during 10/1000μs surge, limiting downstream IC stress to safe levels |
| PPK | 1500W - peak transient power dissipation capability at 25°C ambient, critical for automotive load-dump immunity |
| Junction Temp Range | −55°C to +175°C - enables operation in under-hood automotive environments and industrial motor drives |
| Package | DO-201 - industry-standard axial leaded package with tin-plated leads compliant to J-STD-002 solderability |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including temperature cycling and HTRB |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking; leads are pure tin-plated, solderable per J-STD-002; polarity is marked by cathode band on body; weight ≈ 0.090g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage return path; forms shunt path during overvoltage events |
| Cathode | High-side protected line | Connected to power rail (e.g., 12V battery feed); voltage referenced to anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Clamping Ratio (VC/VBR) | 1.32 typical - tight ratio ensures minimal overvoltage margin between trigger and clamp, reducing system stress |
| Dynamic Impedance | Low - enables fast, stable clamping with minimal voltage overshoot during fast-rising transients |
| Leakage Current | <1µA at 18.8V - negligible standby power loss and no interference with low-power sensor circuits |
| Response Time | <1.0ps - sub-picosecond avalanche initiation ensures protection before sensitive logic or analog circuitry is damaged |
| Surge Standard Compliance | Meets ISO 7637-2 Pulse 1/2a/2b/3a/3b - validated for automotive battery-line transient immunity testing |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Power Input Stage |
|---|---|
Use Scenario: Protects microcontroller supply rails from load dump and alternator ripple transients in 12V vehicle electrical systems. IC Role / Device Role: Shunt clamping element placed between battery feed and local regulator input. Use Value: Limits transient voltage to ≤30.6V, preventing damage to 3.3V/5V LDOs and MCU I/O pins rated for 36V absolute max. | Use Scenario: Shields programmable logic controller inputs from inductive kickback generated by solenoid valve switching. IC Role / Device Role: Primary overvoltage clamp on 24V DC power bus feeding digital I/O modules. Use Value: Absorbs 1500W surges without degradation, maintaining system uptime in factory automation environments. |
| LED Headlamp Driver Circuit | Telecom Power Supply Front-End |
Use Scenario: Safeguards constant-current LED driver ICs from reverse battery connection and jump-start spikes. IC Role / Device Role: Unidirectional TVS placed across input capacitor of buck controller. Use Value: Withstands 200A IFSM surge and clamps to 30.6V, preserving driver MOSFET gate oxide integrity. | Use Scenario: Provides secondary-level surge protection on −48V telecom rectifier outputs before DC-DC conversion. IC Role / Device Role: Standoff protector on telecom power distribution board. Use Value: Delivers 1500W clamping at −48V system level while meeting RoHS and halogen-free compliance (IEC 61249-2-21). |
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 SMAJ22A | Same 22V nominal, DO-214AC (SMA) package, 400W PPK, lower IPP (23.5A) | Lower power handling limits suitability to consumer-grade 12V systems, not automotive load dump | Select when space-constrained PCB layout favors surface-mount and surge energy is ≤400W |
| ON Semiconductor 1.5KE22A | Identical electrical specs, same DO-201 package, AEC-Q101 qualified, same VBR/VC values | No functional difference; fully interchangeable in design and qualification | Preferred for dual-sourcing where Taiwan Semiconductor allocation is constrained |
Compared with SMAJ22A, 1.5KE22A R0G delivers 3.75× higher surge power handling and automotive-grade reliability; compared with ON Semi's 1.5KE22A, it offers identical performance with distinct traceability and manufacturing lot control from Taiwan Semiconductor.
Availability
1.5KE22A R0G is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, LED lighting drivers, and telecom power supplies requiring stable component supply with AEC-Q101 validation and long-term production continuity.
Supply support for 1.5KE22A 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 semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in discrete power devices, TVS diodes, rectifiers, and thyristors for automotive and industrial markets.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh automotive environments, emphasizing robustness against ISO 7637-2 pulses, extended temperature operation, and AEC-Q101 qualification from wafer to final test.
FAQ
What is the clamping voltage of the 1.5KE22A R0G under a 10/1000μs surge?
The 1.5KE22A R0G clamps to a maximum of 30.6V when subjected to a 51A peak impulse current with a 10/1000μs waveform - a value confirmed in the Electrical Specifications table on page 2 of the Taiwan Semiconductor datasheet (O2104). This clamping voltage ensures downstream 3.3V/5V ICs remain within safe operating limits during automotive load-dump events.
Is the 1.5KE22A R0G AEC-Q101 qualified?
Yes, the 1.5KE22A R0G is AEC-Q101 qualified, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet (O2104). This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and mechanical shock - validating its suitability for automotive power electronics such as body control modules and infotainment power supplies.
What is the maximum working voltage (VWM) for the 1.5KE22A R0G?
The maximum working stand-off voltage (VWM) for the 1.5KE22A R0G is 18.8V, as specified in the Electrical Specifications table (page 2, O2104). This value represents the highest continuous DC or RMS voltage the device can block while maintaining leakage current below 1µA - making it ideal for 12V automotive systems with margin above nominal rail voltage.
Does the 1.5KE22A R0G have bidirectional capability?
No, the 1.5KE22A R0G is a unidirectional TVS diode, indicated by the absence of "CA" suffix and explicit designation as "unidirectional" in the datasheet's response time specification (<1.0ps). Bidirectional variants in the same series carry "CA" (e.g., 1.5KE22CA), whereas "A" denotes tighter VBR tolerance - not polarity change.
What package type does the 1.5KE22A R0G use, and what are its key mechanical properties?
The 1.5KE22A R0G uses the DO-201 axial-leaded package: cylindrical epoxy body with cathode band marking, pure tin-plated leads compliant to J-STD-002 solderability, UL 94V-0 flammability rating, and JESD201 Class 2 whisker resistance. Its weight is approximately 0.090g, and it is supplied in tape-and-reel (1250 pcs) or ammo box (500 pcs) packaging per ordering code R0G.
1.5KE22A 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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 51A
- 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
1.5KE22A R0G FAQ
1.How can I place an order for 1.5KE22A R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE22A 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 1.5KE22A R0G reliable?
The price and inventory of 1.5KE22A R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE22A R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE22A R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE22A R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE22A R0G?
1.5KE22A R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE22A 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 1.5KE22A R0G?
For technical support, including 1.5KE22A R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE22A R0G requirements.
6.How does Aetrix verify that 1.5KE22A R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE22A 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 1.5KE22A R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE22A R0G?
All 1.5KE22A R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE22A 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 1.5KE22A R0G part is unused and in its original packaging.
Return procedure for 1.5KE22A R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE22A R0G 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…
