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onsemi 1N6293ARL4G
- Part No.:
- 1N6293ARL4G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N6293ARL4G.pdf
- Description:
- TVS DIODE 70.1VWM 113VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:1,684
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Product details
Overview
1N6293ARL4G from ON Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics against high-energy surges. It features a working peak reverse voltage (VRWM) of 70.1 V, clamping voltage (VC) of 113 V at 13.3 A peak pulse current (IPP), and sub-1 ns response time. It is used in industrial power supplies, communication interfaces, and medical equipment input stages to protect CMOS/MOS/Bipolar ICs from ESD and lightning-induced transients.
For engineers reviewing the 1N6293ARL4G datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin over operating DC voltage, VC vs. protected device's absolute maximum rating, surge current capability under 1 ms waveform, and UL 497B recognition for isolated loop circuit compliance.
Technical Context
This device operates as a Zener-based avalanche clamp: under normal bias it presents <5 µA leakage above 10 V; during transient events exceeding VRWM, it avalanches rapidly to limit voltage across the load. Its low dynamic impedance ensures stable clamping even at high di/dt rates.
The 1N6293ARL4G uses a Surmetic axial-leaded plastic package (Case 41A) with cathode band marking, rated for 230°C soldering at 10 s, and supports Pb-free assembly. It complies with UL 497B for isolated loop circuit protection and achieves Class 3 ESD immunity (>16 kV HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 70.1 V - Maximum continuous reverse operating voltage before clamping begins; must exceed system DC/peak operating voltage. |
| VC @ IPP | 113 V at 13.3 A - Clamped voltage seen by protected circuit during 1 ms 1500 W surge; determines if downstream ICs remain within safe operating area. |
| IPP | 13.3 A - Peak pulse current supported under standard 1 ms exponential waveform; defines surge energy handling (1500 W peak). |
| VBR @ IT | 77.9–86.1 V at 1 mA - Breakdown voltage range; confirms Zener threshold consistency and enables precise VRWM selection. |
| IR @ VRWM | 5 µA - Reverse leakage at rated VRWM; ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| Response Time | <1 ns - Time from transient onset to clamping activation; critical for protecting fast logic and analog front-ends from overshoot. |
| ESD Rating | Class 3 (>16 kV HBM) - Validated human-body-model robustness; suitable for board-level ESD protection without additional staging. |
Pinout & Package
Package: Axial-leaded Surmetic plastic case (Case 41A), cathode indicated by color band. Dimensions: A = 8.5–9.5 mm (length), B = 4.8–5.3 mm (diameter), lead diameter uncontrolled per spec.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node; completes clamping path during reverse surge. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., VBUS, RS-485 A/B); carries full surge current into anode during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) on 24–48 V systems without failure. |
| UL 497B recognition | Validated for use in isolated loop circuits (e.g., 4–20 mA transmitters), meeting safety and endurance requirements. |
| Pb-free (G suffix) | RoHS-compliant construction with matte tin lead finish; compatible with lead-free reflow and wave soldering processes. |
| Low zener impedance | Minimizes voltage overshoot during fast-rising transients (<1 ns), reducing risk of latch-up or gate oxide damage. |
| Stable temperature coefficient | 0.105 %/°C VBR drift ensures predictable clamping across −65°C to +175°C operating range. |
Applications
| Industrial Power Supply Input Protection | RS-485/422 Data Line Clamp |
|---|---|
|
Use Scenario: 24 VDC industrial power rail exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp positive surges only. Use Value: Limits voltage to ≤113 V during 13.3 A surge, preventing damage to upstream rectifiers and downstream DC-DC controllers. |
Use Scenario: Two-wire RS-485 bus in factory automation, subject to ESD and cable discharge events. IC Role / Device Role / Timing Role: Cathode tied to A/B lines, anode to ground; clamps common-mode surges to protect transceiver I/O pins. Use Value: Sub-1 ns response prevents data corruption during ±8 kV contact ESD; UL 497B certification supports functional safety claims. |
| Medical Equipment Mains-Facing Circuits | Programmable Logic Controller (PLC) Digital I/O Protection |
|
Use Scenario: Isolated AC/DC converter secondary side feeding microcontroller peripherals. IC Role / Device Role / Timing Role: TVS installed across isolated 5 V or 3.3 V rails to absorb coupling transients from primary side. Use Value: 5 µA leakage preserves low-power sleep modes; 113 V clamping protects 5 V logic from 1500 W surges induced via transformer parasitics. |
Use Scenario: 24 V digital input module receiving signals from field sensors with long cable runs. IC Role / Device Role / Timing Role: One 1N6293ARL4G per channel, cathode to input line, anode to local ground plane. Use Value: Withstands repeated 1 kV/500 Ω ring wave transients per IEC 61000-4-5; axial package allows through-hole mounting near connector entry point. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ70A | Surface-mount SMB package; 70 V VRWM; 100 W peak power (not 1500 W); lower IPP (32.4 A) but shorter clamping tail. | Designed for PCB space-constrained designs; not suitable for high-energy 1 ms surges requiring 1500 W rating. | Select when layout demands SMT and surge energy is limited to IEC 61000-4-2/4-5 Level 2–3. |
| 1.5KE82A | Same die in alternate packaging (bulk epoxy case 41A); identical electrical specs; RAL4G tape-and-reel variant available. | No functional difference; same UL 497B recognition, thermal derating, and clamping behavior. | Choose for legacy procurement continuity where 1.5KE82A part numbering is mandated in BOMs. |
Compared with SMBJ70A, the 1N6293ARL4G delivers 15× higher surge energy handling and axial-leaded mechanical robustness for high-vibration environments; compared with 1.5KE82A, it offers identical performance in Pb-free tape-and-reel format optimized for automated assembly.
Availability
1N6293ARL4G is available at Aetrix Electronics and suitable for industrial power supplies, communication interface protection, and medical equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N6293ARL4G 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
ON Semiconductor (now onsemi) is a global semiconductor supplier specializing in power management, analog, sensor, and discrete devices for automotive, industrial, and cloud power applications.
The 1N6293ARL4G belongs to the Mosorb 1500 W TVS family, engineered specifically for high-reliability clamping in harsh industrial and medical environments where UL 497B compliance and repeatable surge survival are mandatory.
FAQ
What is the clamping voltage of the 1N6293ARL4G at its rated peak pulse current?
The 1N6293ARL4G clamps to a maximum of 113 V when subjected to its specified peak pulse current of 13.3 A under the standard 1 ms exponential waveform. This value is measured per Figure 5 in the datasheet and defines the upper voltage limit imposed on protected circuitry during surge events. The 1N6293ARL4G maintains this clamping performance across its full operating temperature range and after multiple surge cycles, provided thermal limits are respected.
Does the 1N6293ARL4G meet UL 497B requirements for isolated loop protection?
Yes, the 1N6293ARL4G is explicitly recognized under UL 497B for isolated loop circuit protection, as confirmed in the "UL RECOGNITION" section of the official datasheet. This certification covers testing for strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge performance-making the 1N6293ARL4G suitable for use in 4–20 mA current loops and other safety-critical isolated interfaces where regulatory compliance is required.
How does the 1N6293ARL4G differ from bidirectional TVS diodes like 1.5KE82CA?
The 1N6293ARL4G is unidirectional and protects only against positive-going transients on the cathode line relative to anode (ground), whereas 1.5KE82CA clamps both polarities. This makes the 1N6293ARL4G ideal for DC-biased lines such as power rails or RS-485 A/B with common-mode reference, while 1.5KE82CA suits AC-coupled or floating differential lines. The 1N6293ARL4G also exhibits lower leakage and tighter VBR tolerance than its bidirectional counterpart.
What is the maximum steady-state power dissipation for the 1N6293ARL4G at 75°C lead temperature?
The 1N6293ARL4G has a steady-state power dissipation rating of 5.0 W at TL = 75°C with 3/8 inch lead length, derating linearly at 20 mW/°C above that temperature. This rating applies only to continuous DC or low-frequency reverse bias conditions-not transient suppression-and must be calculated using actual thermal resistance (RJL = 20 °C/W) and ambient conditions. Exceeding this limit risks thermal runaway and permanent degradation of the 1N6293ARL4G.
Is the 1N6293ARL4G RoHS-compliant and suitable for lead-free assembly?
Yes, the "G" suffix in 1N6293ARL4G denotes a Pb-free package with matte tin lead finish, fully compliant with RoHS Directive 2011/65/EU. It is qualified for lead-free reflow soldering profiles (JEDEC J-STD-020) and wave soldering at 230°C for 10 seconds at 1/16 inch from case. The 1N6293ARL4G's Surmetic plastic body and internal construction are validated for reliability under Pb-free thermal cycling and humidity exposure per industry standards.
1N6293ARL4G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-201AD, Axial
- Series:
- Mosorb™
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- -
- 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
1N6293ARL4G FAQ
1.How can I place an order for 1N6293ARL4G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6293ARL4G 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 1N6293ARL4G reliable?
The price and inventory of 1N6293ARL4G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6293ARL4G is usually 5 days.
3.What payment methods are accepted for 1N6293ARL4G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6293ARL4G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6293ARL4G?
1N6293ARL4G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6293ARL4G 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 1N6293ARL4G?
For technical support, including 1N6293ARL4G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6293ARL4G requirements.
6.How does Aetrix verify that 1N6293ARL4G is sourced from the original manufacturer or authorized distributors?
All 1N6293ARL4G 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 1N6293ARL4G meets industry standards.
7.What is the process for return or replacement of 1N6293ARL4G?
All 1N6293ARL4G units undergo pre-shipment inspection (PSI). If there is an issue with 1N6293ARL4G, 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 1N6293ARL4G part is unused and in its original packaging.
Return procedure for 1N6293ARL4G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6293ARL4G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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