My Inquiry
My Account
onsemi 1N6293ARL4
- Part No.:
- 1N6293ARL4
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N6293ARL4.pdf
- Description:
- TVS DIODE 70.1VWM 113VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,382
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N6293ARL4 from ON Semiconductor is a unidirectional 1500 W Mosorb transient voltage suppressor (TVS) diode designed for parallel clamping protection of sensitive electronics against high-energy transients. 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 protection circuits.
For engineers reviewing the 1N6293ARL4 datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM margin over operating DC voltage, VC vs. protected IC absolute maximum rating, surge current capability under IEC 61000-4-5 waveforms, and UL 497B recognition for isolated loop protection.
Technical Context
This device operates as a voltage-clamping Zener-based TVS, entering avalanche conduction when transient voltage exceeds its breakdown voltage (VBR = 77.9–86.1 V at IT = 1 mA). Its low dynamic impedance ensures stable clamping under fast-rising surges (tr ≤ 10 ns), and its axial leaded Surmetic package provides robust thermal dissipation via lead-to-ambient path.
It is rated for nonrepetitive 1500 W peak pulse power (1 ms, 10/1000 µs waveform), with steady-state power derated to 5.0 W at TL = 75°C. Thermal resistance junction-to-lead (RJL) is 20 °C/W, enabling reliable operation in high-temperature environments when mounted with ≥3/8″ lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 70.1 V - Maximum continuous reverse operating voltage before clamping begins; must exceed system DC bus or signal swing. |
| VBR @ IT=1 mA | 77.9–86.1 V - Breakdown voltage range defining turn-on threshold; tight tolerance enables predictable clamping onset. |
| VC @ IPP=13.3 A | 113 V - Clamped voltage during full-rated surge; determines maximum stress on downstream components. |
| IPP | 13.3 A - Peak pulse current supported at 1 ms duration; defines surge energy handling per IEC 61000-4-5 Level 4. |
| Response Time | < 1 ns - Time from transient rise to clamping onset; critical for protecting fast CMOS/MOS inputs. |
| Leakage @ VRWM | < 5 µA - Reverse leakage at rated working voltage; ensures minimal standby power loss and signal integrity. |
| UL Recognition | UL 497B QVGV2 - Certified for isolated loop circuit protection; validates reliability in telecom and industrial safety-critical designs. |
Pinout & Package
1N6293ARL4 uses an axial-leaded plastic package (Case 41A), with cathode identified by a polarity band. Leads are tin-plated, solderable at 230°C for 10 seconds at 1/16″ from case. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node in clamping configuration; forms return path for surge current. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., DC input, RS-485 bus); conducts avalanche current to anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Supports IEC 61000-4-5 4th-level surge immunity (4 kV/2 Ω) without external series impedance. |
| ESD rating >16 kV HBM | Protects against human-body model ESD events common in handling and board assembly environments. |
| Low zener impedance | Maintains tight VC variation across production lot and temperature, ensuring consistent clamping performance. |
| Pb-free (RoHS-compliant) | Meets global environmental compliance requirements; marked with "G" suffix variant (1N6293ARL4G available). |
| Void-free transfer-molded case | Eliminates internal delamination risk under thermal cycling, enhancing long-term reliability in industrial deployments. |
Applications
| Industrial Power Supply Input Protection | RS-485 Communication Line Protection |
|---|---|
|
Use Scenario: 24–48 V DC input stage of programmable logic controllers exposed to load dump and inductive switching transients. IC Role / Device Role: Unidirectional clamping TVS placed between input rail and chassis ground. Use Value: Limits transient voltage to ≤113 V, preventing damage to upstream rectifiers and downstream DC/DC controllers rated for 120 V max. |
Use Scenario: Differential data lines in factory automation networks subject to lightning-induced surges on long cable runs. IC Role / Device Role: Line-to-ground TVS on each RS-485 bus conductor (A and B), referenced to signal ground. Use Value: Clamps common-mode surges up to 13.3 A while maintaining <5 µA leakage, preserving bus bias and fail-safe idle state. |
| Medical Equipment AC/DC Adapter Interface | Process Control Sensor Signal Conditioning Input |
|
Use Scenario: Secondary-side DC output of isolated medical-grade AC/DC adapters feeding patient-connected monitoring modules. IC Role / Device Role: Output rail protector ensuring secondary-side surge isolation meets UL 497B requirements. Use Value: UL 497B QVGV2 recognition validates compliance for isolated loop protection, supporting regulatory submission for Class II devices. |
Use Scenario: 4–20 mA analog input channel receiving signals from remote pressure/temperature transmitters over 100+ meter cables. IC Role / Device Role: Low-leakage TVS on signal line to ground, minimizing impact on precision current-loop accuracy. Use Value: <5 µA leakage at 70.1 V VRWM avoids loading error in high-impedance receiver circuits, preserving ±0.1% measurement fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage 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 time. | Designed for PCB space-constrained designs; unsuitable for high-energy surges requiring 1500 W rating. | Select only if surge threat is limited to IEC 61000-4-2 ESD or low-energy transients; not a drop-in replacement for 1N6293ARL4's energy handling. |
| 1.5KE82A | Same manufacturer, identical electrical specs (VRWM = 70.1 V, VBR = 77.9–86.1 V, VC = 113 V), but supplied in bulk (500/unit box) instead of tape-and-reel. | No functional or performance difference; differs only in packaging format and reel orientation. | Choose 1.5KE82A for manual prototyping or low-volume assembly; 1N6293ARL4 preferred for automated SMT placement with 1500-unit tape-and-reel feed. |
Compared with SMBJ70A, 1N6293ARL4 delivers 15× higher surge energy absorption and axial-lead mechanical robustness for high-vibration environments; compared with 1.5KE82A, it offers identical protection performance with optimized logistics for high-volume production.
Availability
1N6293ARL4 is available at Aetrix Electronics and suitable for industrial power supplies, RS-485 communication systems, and medical equipment requiring stable component supply with UL 497B certification and high-surge resilience.
Supply support for 1N6293ARL4 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 part of onsemi) is a global semiconductor supplier specializing in power management, analog, sensor, and discrete solutions for automotive, industrial, and communications markets.
The 1N6293ARL4 belongs to the 1N6267A Series Mosorb TVS family, engineered specifically for high-energy transient suppression in harsh industrial and medical environments where reliability, UL recognition, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of the 1N6293ARL4 under maximum rated surge current?
The 1N6293ARL4 has a maximum clamping voltage (VC) of 113 V when subjected to its rated peak pulse current (IPP) of 13.3 A, measured using the standard 1 ms exponential waveform. This value is guaranteed across temperature and production lot, and defines the upper voltage limit imposed on protected circuitry during a full-rated transient event. The 1N6293ARL4 maintains this clamping performance due to its low dynamic impedance and thermally stable Zener structure.
Is the 1N6293ARL4 RoHS-compliant and lead-free?
Yes, the 1N6293ARL4 is RoHS-compliant and lead-free. It conforms to JEDEC and EU RoHS directives, with Pb-free terminations and void-free Surmetic plastic encapsulation. The "RL4" suffix denotes tape-and-reel packaging; the Pb-free version is also available as 1N6293ARL4G. All lead finishes meet J-STD-020 moisture sensitivity level (MSL) requirements for standard reflow profiles.
How does the 1N6293ARL4 differ from bidirectional TVS diodes like 1.5KE82CA?
The 1N6293ARL4 is unidirectional and protects only against positive transients on the cathode relative to anode - ideal for DC power rails and single-polarity signal lines. In contrast, 1.5KE82CA is bidirectional and clamps both polarities, making it suitable for AC lines or differential buses like RS-485 where negative surges occur. The 1N6293ARL4 cannot replace 1.5KE82CA in AC-coupled applications without risking reverse conduction failure.
What is the maximum steady-state power dissipation for the 1N6293ARL4 at elevated temperatures?
The 1N6293ARL4 has a steady-state power dissipation (PD) rating of 5.0 W at lead temperature (TL) ≤ 75°C, with linear derating of 20 mW/°C above that point. At TL = 100°C, PD drops to 4.5 W; at TL = 125°C, it is 4.0 W. This derating is defined by its 20 °C/W junction-to-lead thermal resistance and must be respected in continuous fault or high-duty-cycle surge conditions to avoid thermal runaway.
Does the 1N6293ARL4 require series impedance for safe operation in a typical protection circuit?
No, the 1N6293ARL4 does not require series impedance for basic clamping function, but a current-limiting resistor or fuse is strongly recommended upstream to prevent sustained conduction during prolonged overvoltage. Without such protection, continuous operation above VRWM could cause thermal failure. The 1N6293ARL4 is intended for transient-only suppression, not steady-state overvoltage regulation.
1N6293ARL4 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):
- 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
1N6293ARL4 FAQ
1.How can I place an order for 1N6293ARL4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6293ARL4 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 1N6293ARL4 reliable?
The price and inventory of 1N6293ARL4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6293ARL4 is usually 5 days.
3.What payment methods are accepted for 1N6293ARL4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6293ARL4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6293ARL4?
1N6293ARL4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6293ARL4 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 1N6293ARL4?
For technical support, including 1N6293ARL4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6293ARL4 requirements.
6.How does Aetrix verify that 1N6293ARL4 is sourced from the original manufacturer or authorized distributors?
All 1N6293ARL4 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 1N6293ARL4 meets industry standards.
7.What is the process for return or replacement of 1N6293ARL4?
All 1N6293ARL4 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6293ARL4, 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 1N6293ARL4 part is unused and in its original packaging.
Return procedure for 1N6293ARL4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6293ARL4 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…
