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onsemi 1N6379RL4
- Part No.:
- 1N6379RL4
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N6379RL4.pdf
- Description:
- TVS DIODE 22VWM 37.5VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:4,132
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Product details
Overview
1N6379RL4 from ON Semiconductor is a unidirectional 1500 W peak power TVS diode designed for transient voltage suppression in DC power rails and signal lines. It features a 36 V working peak reverse voltage (VRWM), clamps to ≤65.2 V at 23 A peak pulse current (IPP), and delivers sub-1 ns response time with <2.0 µA leakage at VRWM. It is used in industrial power supplies, medical equipment surge protection, and communication interface I/O lines.
For engineers reviewing the 1N6379RL4 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin vs. protected IC VDD, peak pulse current capability under IEC 61000-4-5 waveform, thermal derating above 75°C lead temperature, and axial lead solderability per 260°C/10s JEDEC standard.
Technical Context
The 1N6379RL4 operates as a unidirectional avalanche diode, leveraging silicon junction breakdown to clamp transients above its 36 V VRWM. Its dynamic impedance remains low (<1 Ω typical) during 1 ms 8.3 ms pulse events, enabling effective energy diversion away from downstream circuitry.
It is rated for 200 A non-repetitive forward surge current (IFSM), supports -65°C to +175°C operating range, and exhibits ESD robustness >16 kV HBM - making it suitable for harsh industrial environments where fast-rising lightning-induced surges occur on long cable runs or AC/DC inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Peak Reverse Voltage (VRWM) | 36 V - maximum continuous DC or peak AC voltage the device blocks without clamping; sets minimum system operating voltage compatibility. |
| Clamping Voltage (VC) @ IPP = 23 A | 65.2 V - maximum voltage seen by protected circuit during full-rated 1500 W transient; defines safe overvoltage margin for 48 V systems. |
| Peak Pulse Power (PPK) | 1500 W @ 1 ms - energy-handling capacity for single-event surges per IEC 61000-4-5 Level 4 (4 kV/2 Ω); determines survivability of lightning-induced spikes. |
| Response Time | <1 ns - enables clamping before most CMOS/MOS ICs experience gate oxide stress; critical for protecting high-speed interfaces. |
| Leakage Current @ VRWM | <2.0 µA - negligible standby power loss in battery-backed or low-power circuits; avoids false triggering or bias drift. |
| ESD Rating (HBM) | >16 kV - exceeds Class 3 ESD immunity requirements; ensures robustness against human handling and board-level static discharge. |
Pinout & Package
1N6379RL4 uses an axial-leaded Surmetic plastic package (Case 41A), with cathode identified by a polarity band. Leads are tin-plated, solderable at 260°C for 10 seconds at 1/16″ from case body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to ground or low-impedance reference; completes clamping loop during overvoltage event. |
| Cathode | Protected line connection | Connected to input rail or signal line being safeguarded; conducts when voltage exceeds VRWM. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Enables integration into DC-biased lines without reverse conduction; avoids unintended current paths in positive-rail protection. |
| Low zener impedance | Maintains stable clamping across varying surge currents - critical for consistent protection in multi-kV surge events. |
| Pb-free axial package | Complies with RoHS Directive 2011/65/EU; eliminates lead contamination risk in automated soldering and end-of-life recycling. |
| Void-free molded case | Prevents moisture ingress and thermal delamination under repeated surge stress - enhances long-term reliability in humid industrial enclosures. |
Applications
| Industrial Power Supply Input Protection | Medical Equipment ESD-Sensitive Interface |
|---|---|
Use Scenario: Protecting AC/DC converter primary-side rectifier outputs and secondary-side 24–48 V DC rails from lightning-induced surges and load dump transients. IC Role / Device Role / Timing Role: Transient voltage suppressor placed in parallel with bulk capacitor and upstream of DC-DC regulators. Use Value: Limits transient overshoot to ≤65.2 V, preventing overvoltage failure of 75 V-rated MOSFETs and electrolytic capacitors rated for 50 V DC. |
Use Scenario: Shielding RS-232/RS-485 ports and analog sensor inputs in diagnostic imaging devices from ESD and electrostatic coupling. IC Role / Device Role / Timing Role: Fast-response shunt protector mounted directly at connector entry point with minimal trace length. Use Value: Clamps 15 kV contact discharge within <1 ns, preserving integrity of 3.3 V/5 V ADC front-ends and UART transceivers without latch-up. |
| Telecom Line Card Surge Suppression | Automotive Aftermarket Control Module I/O |
Use Scenario: Safeguarding Ethernet PHYs and PoE injectors on telecom base station line cards exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Unidirectional TVS on data pair and power feed lines, coordinated with common-mode chokes. Use Value: Handles 10/1000 µs waveform surges up to 1500 W while maintaining <1 pF capacitance - avoids signal integrity degradation at 100 Mbps. |
Use Scenario: Protecting CAN bus termination resistors and microcontroller GPIOs in vehicle telematics modules subjected to ISO 7637-2 pulse 1 and pulse 3a/b. IC Role / Device Role / Timing Role: Secondary-level TVS on 12 V supply rail and CAN_H/CAN_L lines, downstream of primary fuse and LC filter. Use Value: Survives repetitive 100 A pulses with <20 °C/W junction-to-lead thermal resistance - sustains operation after multiple load-dump events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | Surface-mount SMB package; 600 W peak power; lower VC (58.1 V @ 17.6 A); higher VRWM tolerance (±5%). | Requires PCB rework for SMT layout; better suited for space-constrained consumer electronics vs. industrial axial designs. | Select when board area is limited and surge duty is less severe than IEC 61000-4-5 Level 4. |
| 1N6380RL4 | Same axial package and 1500 W rating; higher VRWM (45 V); higher VC (78.9 V @ 19 A); identical thermal specs and ESD rating. | Used where system nominal voltage is ≥40 V (e.g., 48 V telecom or EV auxiliary systems); trades clamping tightness for higher blocking voltage. | Choose for 48 V DC systems needing tighter VRWM margin but accepting higher clamping voltage. |
Compared with SMBJ36A and 1N6380RL4, the 1N6379RL4 provides optimal balance of 36 V VRWM, 65.2 V clamping, and axial through-hole mounting - ideal for legacy industrial power supplies requiring field-serviceable components and proven surge endurance.
Availability
1N6379RL4 is available at Aetrix Electronics and suitable for industrial power supplies, medical equipment interfaces, and telecom line card protection requiring stable component supply and long-term obsolescence management.
Supply support for 1N6379RL4 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 is a global semiconductor supplier specializing in energy-efficient power management, analog, sensors, and connectivity solutions for automotive, industrial, cloud, and medical markets.
The 1N6379RL4 belongs to the Mosorb® TVS family - engineered specifically for high-energy transient suppression in ruggedized industrial and medical systems where reliability under repeated surge stress is mandatory.
FAQ
What is the clamping voltage of the 1N6379RL4 at its rated peak pulse current?
The 1N6379RL4 clamps to a maximum of 65.2 V at its rated peak pulse current of 23 A (1 ms exponential decay waveform). This value is measured per Figure 5 in the ON Semiconductor datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Is the 1N6379RL4 compatible with lead-free soldering processes?
Yes, the 1N6379RL4 is Pb-free and qualified for lead-free soldering at 260°C for 10 seconds at 1/16″ from the case body. Its Surmetic axial package meets J-STD-020 moisture sensitivity level 1 and supports standard reflow and wave soldering profiles without delamination or parametric shift.
How does the 1N6379RL4 differ from bidirectional TVS diodes like P6KE36CA?
The 1N6379RL4 is unidirectional and blocks only reverse voltage, making it suitable for DC-biased lines such as positive power rails. In contrast, P6KE36CA clamps in both directions and is used in AC-coupled or floating signal paths. The 1N6379RL4 offers lower leakage and tighter VRWM control for DC applications.
Can the 1N6379RL4 be used in parallel to increase surge current handling?
No - the 1N6379RL4 should not be paralleled without external balancing resistors due to manufacturing variations in breakdown voltage (VBR tolerance ±5%). Mismatched VBR causes uneven current sharing and premature failure of the lower-VBR unit. For higher current, select a single higher-rated device like 1N6380RL4.
What is the maximum steady-state power dissipation for the 1N6379RL4 at 75°C lead temperature?
The 1N6379RL4 has a steady-state power dissipation rating of 5.0 W at TL = 75°C with 3/8″ lead length. Above 75°C, it derates linearly at 20 mW/°C - meaning at 100°C lead temperature, maximum continuous power drops to 4.5 W.
1N6379RL4 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):
- 22V
- Voltage - Breakdown (Min):
- 25.9V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- 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
1N6379RL4 FAQ
1.How can I place an order for 1N6379RL4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6379RL4 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 1N6379RL4 reliable?
The price and inventory of 1N6379RL4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6379RL4 is usually 5 days.
3.What payment methods are accepted for 1N6379RL4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6379RL4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6379RL4?
1N6379RL4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6379RL4 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 1N6379RL4?
For technical support, including 1N6379RL4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6379RL4 requirements.
6.How does Aetrix verify that 1N6379RL4 is sourced from the original manufacturer or authorized distributors?
All 1N6379RL4 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 1N6379RL4 meets industry standards.
7.What is the process for return or replacement of 1N6379RL4?
All 1N6379RL4 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6379RL4, 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 1N6379RL4 part is unused and in its original packaging.
Return procedure for 1N6379RL4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6379RL4 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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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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