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onsemi ICTE-15RL4G
- Part No.:
- ICTE-15RL4G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
ICTE-15RL4G.pdf
- Description:
- TVS DIODE 15VWM 25VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:7,455
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Product details
Overview
ICTE-15RL4G from onsemi is a unidirectional 1500 W peak power TVS diode designed for transient voltage suppression in DC power rails and signal lines. It features a 15 V working peak reverse voltage (VRWM), 25 A peak pulse current (IPP), 20.1 V clamping voltage (VC) at IPP, <2 µA leakage at VRWM, and sub-nanosecond response time. It is used to protect CMOS/MOS/Bipolar ICs in industrial power supplies and communication interfaces.
For engineers reviewing the ICTE-15RL4G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin relative to system operating voltage, surge current capability under 1 ms pulses, thermal derating above 75°C lead temperature, and axial-leaded mechanical integration in high-reliability industrial PCB layouts.
Technical Context
The ICTE-15RL4G operates as a unidirectional Zener-based transient suppressor with avalanche breakdown behavior. Its 15 V VRWM ensures compatibility with 12 V nominal systems, while its 20.1 V VC at 25 A limits protected circuit stress during ESD or lightning-induced surges.
It uses a Surmetic axial-leaded plastic package (Case 41A) with cathode band marking and Pb-free finish. Thermal resistance is 20 °C/W junction-to-lead, enabling 5.0 W steady-state dissipation at TL ≤ 75°C with 3/8″ lead length - critical for sustained overvoltage events in process control equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 15 V - Maximum continuous reverse voltage before clamping; matches 12 V rail with 25% margin |
| IPP @ 1 ms | 25 A - Peak surge current it safely shunts without failure; validated per Figure 5 waveform |
| VC @ IPP | 20.1 V - Clamped voltage seen by protected IC during full surge; defines minimum IC withstand rating |
| IR @ VRWM | <2 µA - Negligible standby leakage; avoids loading low-power sensor or standby circuits |
| Response Time | <1 ns - Enables suppression of fast transients (e.g., ESD, relay bounce) before IC damage occurs |
| RJL | 20 °C/W - Junction-to-lead thermal resistance; determines heatsinking requirement for repeated surges |
| ESD Rating | Class 3 (>16 kV HBM) - Meets IEC 61000-4-2 Level 4 for system-level ESD immunity |
Pinout & Package
ICTE-15RL4G is housed in an axial-leaded Surmetic plastic package (Case 41A), with cathode identified by a colored band. Leads are solderable at 260°C for 10 seconds at 1/16″ from case. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink path during reverse-biased clamp | Connected to ground or low-impedance return; carries full IPP during surge |
| Cathode | Protected line connection point | Connected to the 12 V rail or signal line being safeguarded; polarity band confirms orientation |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Handles 1 ms surges up to 25 A without degradation - suitable for IEC 61000-4-5 Level 3 line surges |
| Low zener impedance | Ensures stable clamping across temperature and current; minimizes VC variation under varying IPP |
| Pb-Free Surmetic package | RoHS-compliant axial construction with corrosion-resistant finish and reliable solder wetting |
| Fast response <1 ns | Clamps before most digital ICs experience latch-up or gate oxide rupture during ESD events |
Applications
| Industrial Power Supply Protection | RS-485 Communication Line Protection |
|---|---|
Use Scenario: 12 V DC input stage of PLC power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +12 V rail and chassis ground to clamp positive-going surges. Use Value: 20.1 V clamping voltage ensures downstream regulators and controllers remain below absolute maximum ratings during 25 A transients. | Use Scenario: Differential pair of RS-485 transceivers in factory automation network subject to cable ESD and ground potential differences. IC Role / Device Role / Timing Role: One ICTE-15RL4G per line (A and B), cathode to signal, anode to ground - suppresses common-mode surges. Use Value: Sub-nanosecond response prevents data corruption during 8 kV contact discharge per IEC 61000-4-2. |
| Medical Equipment Input Filtering | Numerical Control System I/O Protection |
Use Scenario: Front-end AC/DC adapter output feeding sensitive analog front-end and microcontroller in diagnostic imaging device. IC Role / Device Role / Timing Role: Secondary-side TVS on regulated 15 V bias rail to absorb residual switching noise and external coupling. Use Value: <2 µA leakage avoids drift in precision ADC reference paths; 15 V VRWM aligns with rail tolerance stack-up. | Use Scenario: Digital I/O expansion board in CNC controller exposed to motor drive noise and relay coil kickback. IC Role / Device Role / Timing Role: Discrete TVS on each 24 V digital input line, cathode to signal, anode to common ground plane. Use Value: 1500 W peak rating sustains repetitive 10 A surges from solenoid de-energization without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | Surface-mount SMB package; 15 V VRWM; 24.4 V VC @ 22.5 A; 600 W peak power | Limited to lower-energy transients; unsuitable for 1500 W IEC 61000-4-5 line surges | Select when board space is constrained and surge energy is ≤600 W (e.g., secondary-side signal protection) |
| 1N6377RLG | Same axial Case 41A package; identical VRWM (15 V), VC (20.1 V), and IPP (25 A); same onsemi manufacturing and qualification | No functional or mechanical difference - alternate ordering code for identical device | Use when sourcing requires JEDEC-standard marking (1N6377) instead of ON Semiconductor's ICTE prefix |
Compared with SMBJ15A, ICTE-15RL4G delivers 2.5× higher surge power handling and axial-leaded robustness for high-reliability industrial mounting; compared with 1N6377RLG, it is functionally identical but marked per ON Semiconductor's internal device coding convention.
Availability
ICTE-15RL4G is available at Aetrix Electronics and suitable for industrial power supplies, RS-485 communication interfaces, medical equipment power stages, and numerical control system I/O requiring stable component supply and long-term obsolescence management.
Supply support for ICTE-15RL4G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient innovation for automotive, industrial, cloud, and IoT applications.
The ICTE series belongs to onsemi's Mosorb transient voltage suppressor product line, engineered specifically for high-energy, high-reliability protection of voltage-sensitive components in harsh industrial environments.
FAQ
What is the clamping voltage of ICTE-15RL4G at its rated peak pulse current?
The ICTE-15RL4G has a maximum clamping voltage (VC) of 20.1 V at its rated peak pulse current (IPP) of 25 A, measured under the standardized 1 ms exponential waveform per Figure 5 in the datasheet. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and must be verified against the absolute maximum ratings of downstream ICs in the ICTE-15RL4G application layout.
Is ICTE-15RL4G suitable for bidirectional transient suppression?
No, ICTE-15RL4G is a unidirectional TVS diode, designed only for suppressing positive-going transients on DC lines referenced to ground. It conducts in reverse breakdown above VRWM but blocks forward current like a standard diode. For bidirectional protection (e.g., AC lines or differential signals), two ICTE-15RL4G devices in series opposition or a dedicated bidirectional part such as SMAJ15CA would be required - ICTE-15RL4G alone does not provide symmetrical clamping.
What is the maximum steady-state power dissipation for ICTE-15RL4G?
The ICTE-15RL4G has a steady-state power dissipation (PD) rating of 5.0 W at a lead temperature (TL) of ≤75°C with 3/8″ lead length. Above 75°C, PD derates linearly at 20 mW/°C, reaching zero at TL = 100°C. This rating applies only to continuous DC or low-frequency conditions - the 1500 W peak rating is strictly for non-repetitive 1 ms pulses and cannot be averaged into thermal design for ICTE-15RL4G.
Does ICTE-15RL4G meet RoHS and lead-free requirements?
Yes, ICTE-15RL4G is supplied in a Pb-free Surmetic axial package compliant with RoHS Directive 2011/65/EU. The "G" suffix in the part number explicitly denotes Pb-free construction, and the device meets J-STD-609 Category 1 moisture sensitivity level with no special handling required. Soldering is qualified per IPC/JEDEC J-STD-020 at 260°C for 10 seconds at 1/16″ from the case - consistent with standard ICTE-15RL4G assembly practices.
How does ICTE-15RL4G compare to standard Zener diodes for surge protection?
Unlike general-purpose Zener diodes, ICTE-15RL4G is optimized for transient suppression: it offers 1500 W peak power handling, <1 ns response, controlled dynamic impedance, and guaranteed clamping performance under standardized surge waveforms. Standard Zeners lack surge-rated construction, exhibit higher dynamic impedance, and may fail catastrophically under similar conditions - ICTE-15RL4G is characterized and qualified specifically for IEC 61000-4-2 and -4-5 compliance, unlike generic Zeners.
ICTE-15RL4G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-201AD, Axial
- Series:
- Mosorb™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 17.6V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 60A (8/20µs)
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
ICTE-15RL4G FAQ
1.How can I place an order for ICTE-15RL4G through Aetrix?
Please submit a Request for Quotation (RFQ) for ICTE-15RL4G 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 ICTE-15RL4G reliable?
The price and inventory of ICTE-15RL4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICTE-15RL4G is usually 5 days.
3.What payment methods are accepted for ICTE-15RL4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICTE-15RL4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICTE-15RL4G?
ICTE-15RL4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICTE-15RL4G 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 ICTE-15RL4G?
For technical support, including ICTE-15RL4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICTE-15RL4G requirements.
6.How does Aetrix verify that ICTE-15RL4G is sourced from the original manufacturer or authorized distributors?
All ICTE-15RL4G 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 ICTE-15RL4G meets industry standards.
7.What is the process for return or replacement of ICTE-15RL4G?
All ICTE-15RL4G units undergo pre-shipment inspection (PSI). If there is an issue with ICTE-15RL4G, 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 ICTE-15RL4G part is unused and in its original packaging.
Return procedure for ICTE-15RL4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ICTE-15RL4G 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
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