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onsemi 1N6376RL4
- Part No.:
- 1N6376RL4
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N6376RL4.pdf
- Description:
- TVS DIODE 12VWM 21.2VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,969
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Product details
Overview
1N6376RL4 from ON Semiconductor is a unidirectional 1500 W Mosorb transient voltage suppressor (TVS) diode with 12 V working peak reverse voltage (VRWM), 21.2 A peak pulse current (IPP), 16.1 V clamping voltage (VC) at IPP, and sub-1 ns response time. It protects CMOS/MOS/Bipolar ICs in power supplies and industrial control systems against ESD (>16 kV HBM) and lightning-induced surges.
For engineers reviewing the 1N6376RL4 datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM ≥ system DC bus voltage, VC margin below IC absolute maximum rating, low zener impedance for effective clamping, and axial leaded Case 41A package compatibility with through-hole PCB layouts.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal bias it presents <2 µA leakage above 10 V; during transients exceeding VRWM = 12 V, it avalanches to clamp at VC = 16.1 V (max) with 21.2 A peak current capability. Its low dynamic impedance ensures minimal overshoot during fast-rising events.
The device uses a silicon avalanche junction in a void-free thermosetting plastic Surmetic axial package (Case 41A), rated for 260°C soldering at 1/16″ from case for 10 s. 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.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 12 V - Maximum continuous reverse operating voltage before clamping begins; must exceed circuit's max DC/peak AC voltage. |
| VC @ IPP | 16.1 V - Clamping voltage at 21.2 A peak pulse; defines worst-case overvoltage seen by protected ICs. |
| IPP | 21.2 A - Peak pulse current handling per 1 ms waveform; determines surge energy absorption (1500 W peak). |
| Response Time | <1 ns - Enables suppression of fast transients (e.g., ESD, switching noise) before downstream components are stressed. |
| Leakage Current | <2 µA @ 12 V - Negligible standby power loss and no signal integrity impact in high-impedance circuits. |
| ESD Rating | >16 kV HBM - Meets IEC 61000-4-2 Level 4 for robust system-level electrostatic discharge immunity. |
| Package | Case 41A axial lead - Standard through-hole mounting; 8.5–9.5 mm body length, 4.8–5.3 mm diameter, Pb-free compliant. |
Pinout & Package
Package: Axial leaded Surmetic plastic case (ON Semiconductor Case 41A), cathode indicated by polarity band. Leads are solderable, corrosion-resistant, and rated for 260°C at 1/16″ from case for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node; completes shunt path during avalanche conduction. |
| Cathode | High-side transient input | Connected to protected line (e.g., DC input, signal trace); polarity band identifies this terminal for correct orientation. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Handles IEC 61000-4-5 combination wave surges (e.g., 2 Ω source impedance, 1.2/50 µs voltage + 8/20 µs current) without failure. |
| Clamping ratio (VC/VRWM) | 1.34 - Tight ratio ensures minimal overvoltage margin; critical for protecting 13.3 V absolute-maximum-rated ICs on 12 V rails. |
| Low zener impedance | Enables stable clamping under varying surge currents; reduces voltage overshoot caused by external trace inductance. |
| Pb-Free Surmetic package | RoHS-compliant construction with void-free molding; ensures long-term reliability in industrial thermal cycling environments. |
| Fast response <1 ns | Responds before most microsecond-scale transients fully develop; essential for safeguarding high-speed logic and ADC inputs. |
Applications
| Industrial Power Supply Protection | Medical Equipment Input Stage |
|---|---|
Use Scenario: 12 V DC input rail of programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Shunt TVS diode placed directly across input terminals to clamp surges before they reach upstream regulators and microcontrollers. Use Value: Limits transient voltage to ≤16.1 V, preventing latch-up or gate oxide damage in 16 V-rated DC-DC controllers and FPGAs. | Use Scenario: Patient-connected sensor interface board in diagnostic imaging equipment requiring IEC 60601-1 compliance. IC Role / Device Role / Timing Role: Primary overvoltage protection on isolated analog front-end supply lines feeding precision op-amps and ADCs. Use Value: Provides >16 kV HBM ESD immunity and clamps 1 kV/µs fast transients within 1 ns, preserving signal integrity and patient safety isolation. |
| Automotive Aftermarket Electronics | Telecom Line Card Surge Protection |
Use Scenario: 12 V accessory port protection in vehicle infotainment head units subject to ISO 7637-2 Pulse 1/2a/5a transients. IC Role / Device Role / Timing Role: First-line defense on fused battery feed; coordinates with downstream polymer PTCs and filtering capacitors. Use Value: Absorbs 1500 W peak energy without degradation, maintaining clamping performance over 1000+ surge events per AEC-Q101 stress testing. | Use Scenario: TIP/RING line protection in VoIP gateway Ethernet ports exposed to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Unidirectional shunt element in hybrid protection circuit with gas discharge tube (GDT) and series impedance. Use Value: Fast turn-on ensures GDT fires only after initial clamping, extending GDT lifetime and reducing follow-on current risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12A | Surface-mount SMB package (vs. axial Case 41A); same 12 V VRWM but 23.2 V VC @ 12.3 A IPP; lower peak power (600 W). | Requires PCB rework for SMT layout; better suited for space-constrained consumer electronics vs. industrial through-hole assemblies. | Select when board area is limited and surge requirements are ≤600 W; verify thermal pad design for 5.0 W steady-state dissipation. |
| 1N6376G | Same electrical specs and Case 41A package, but supplied in 500-unit boxes (vs. 1500-unit tape-and-reel); identical Pb-free construction and marking. | No functional difference; choice depends solely on procurement volume and assembly method (manual vs. pick-and-place). | Choose 1N6376RL4 for automated insertion; select 1N6376G for hand-soldered prototypes or low-volume production. |
Compared with SMBJ12A and 1N6376G, the 1N6376RL4 delivers higher surge robustness (1500 W vs. 600 W) in a proven axial format ideal for high-reliability industrial power entry points, while offering identical protection performance to 1N6376G with optimized packaging for reel-fed manufacturing.
Availability
1N6376RL4 is available at Aetrix Electronics and suitable for industrial power supplies, medical equipment input stages, automotive aftermarket electronics, and telecom line card surge protection requiring stable component supply and long-term lifecycle support.
Supply support for 1N6376RL4 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 manufacturer specializing in power management, analog, sensors, and discrete devices for automotive, industrial, and cloud power applications.
The 1N6373–1N6381 Mosorb series was engineered specifically for high-energy transient suppression in harsh environments-delivering reliable 1500 W clamping in cost-effective axial packages for legacy and new-design power infrastructure.
FAQ
What is the maximum clamping voltage of the 1N6376RL4 under peak surge conditions?
The 1N6376RL4 has a maximum clamping voltage (VC) of 16.1 V when subjected to its rated peak pulse current (IPP) of 21.2 A per the 1 ms exponential waveform defined in Figure 5 of the datasheet. This value is guaranteed across temperature and represents the worst-case overvoltage imposed on protected circuitry during transient events.
Can the 1N6376RL4 be used in bidirectional protection configurations?
No, the 1N6376RL4 is a unidirectional TVS diode and must be oriented with cathode toward the protected line and anode to ground. For bidirectional protection, two 1N6376RL4 devices would need back-to-back connection, but ON Semiconductor does not characterize or guarantee performance in that configuration; dedicated bidirectional parts like 1N6376B should be used instead.
What is the thermal resistance and steady-state power rating of the 1N6376RL4?
The 1N6376RL4 has a junction-to-lead thermal resistance (RJL) of 20°C/W and a steady-state power dissipation (PD) rating of 5.0 W at lead temperature (TL) ≤ 75°C with 3/8″ lead length. Derating is required above 75°C at 20 mW/°C, consistent with its Case 41A axial package construction.
How does the 1N6376RL4 compare to the 1N6376G in terms of electrical performance?
The 1N6376RL4 and 1N6376G share identical electrical specifications-including VRWM = 12 V, VC = 16.1 V @ IPP = 21.2 A, and response time <1 ns-as both are the same die in ON Semiconductor's Case 41A package. The only difference is packaging: RL4 denotes 1500-unit tape-and-reel, while G indicates 500-unit bulk box.
Is the 1N6376RL4 compliant with RoHS and lead-free soldering standards?
Yes, the 1N6376RL4 is Pb-free and RoHS-compliant per ON Semiconductor's documentation. Its Surmetic plastic package supports lead-free reflow and wave soldering, with maximum lead temperature rated at 260°C for 10 seconds at 1/16″ from the case body, meeting J-STD-020 moisture sensitivity level (MSL) requirements for through-hole assembly.
1N6376RL4 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):
- 12V
- Voltage - Breakdown (Min):
- 14.1V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- 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
1N6376RL4 FAQ
1.How can I place an order for 1N6376RL4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6376RL4 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 1N6376RL4 reliable?
The price and inventory of 1N6376RL4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6376RL4 is usually 5 days.
3.What payment methods are accepted for 1N6376RL4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6376RL4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6376RL4?
1N6376RL4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6376RL4 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 1N6376RL4?
For technical support, including 1N6376RL4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6376RL4 requirements.
6.How does Aetrix verify that 1N6376RL4 is sourced from the original manufacturer or authorized distributors?
All 1N6376RL4 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 1N6376RL4 meets industry standards.
7.What is the process for return or replacement of 1N6376RL4?
All 1N6376RL4 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6376RL4, 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 1N6376RL4 part is unused and in its original packaging.
Return procedure for 1N6376RL4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6376RL4 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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