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onsemi 1N5372BRLG
- Part No.:
- 1N5372BRLG
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- Axial
- Datasheet:
-
1N5372BRLG.pdf
- Description:
- DIODE ZENER 62V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,654
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Product details
Overview
1N5372BRLG from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 62 V, ±5% tolerance, 20 Ω maximum zener impedance at 42 mA test current, and 1.35 μA reverse leakage at 47.1 V. It operates across −65 °C to +200 °C and delivers stable voltage regulation in DC power supply reference and overvoltage protection circuits.
For engineers reviewing the 1N5372BRLG datasheet, pinout, applications, or equivalent options, key selection criteria include its 62 V nominal breakdown, 400 mA maximum DC zener current, 180 W surge rating at 8.3 ms, ESD robustness (>16 kV HBM), and Pb-free Surmetic 40 plastic package compatibility with wave and reflow soldering.
Technical Context
This device uses silicon-oxide passivated junction technology to achieve tight voltage tolerance (±5%), low dynamic impedance, and high reliability under thermal and surge stress. Its axial-lead construction and transfer-molded thermosetting plastic case provide mechanical robustness and environmental protection across industrial temperature extremes.
The 1N5372BRLG is characterized at 25 °C with zener voltage measured at both 10% and 50% of IZM, ensuring stable regulation under varying load conditions. Its thermal resistance from junction-to-lead is 25 °C/W at 3/8″ lead length, enabling predictable derating above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 62 V - precise DC reference voltage for regulator feedback or clamp threshold setting |
| Zener Voltage Range | 58.9 V to 65.1 V - guaranteed operating window under ±5% tolerance at IZT = 42 mA |
| Max Zener Impedance | 20 Ω @ 42 mA - low dynamic resistance ensures minimal output voltage variation with load current changes |
| Max DC Zener Current | 400 mA - supports up to 5 W continuous dissipation (62 V × 0.4 A ≈ 24.8 W, limited by thermal design) |
| Surge Rating | 180 W @ 8.3 ms - withstands transient overvoltage events without degradation in protection circuits |
| ESD Rating | Class 3 (>16 kV HBM) - robust handling during board assembly and field operation |
| Operating Temp Range | −65 °C to +200 °C - suitable for under-hood automotive, industrial controls, and aerospace environments |
Pinout & Package
Package: Axial-lead, Surmetic 40 plastic case (Case 017AA), cathode indicated by band. Lead diameter 0.037–0.043″ (0.94–1.09 mm), body length 1.000–1.250″ (25.4–31.75 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in reverse-biased regulation; defines reference ground point in shunt regulator topology |
| Cathode | Zener breakdown terminal / voltage regulation node | Connected to higher-potential rail; clamps voltage at VZ when reverse current exceeds IZK, enabling precision shunt regulation |
Key Features
| Feature | Design Value |
|---|---|
| Zener voltage tolerance | ±5% - enables accurate, repeatable voltage reference without external trimming |
| Surge current capability | Up to 180 W peak for 8.3 ms - protects downstream circuitry against lightning-induced transients and inductive switching spikes |
| ESD robustness | Class 3 (>16 kV HBM) - eliminates need for additional ESD protection in many board-level designs |
| Thermal performance | Junction-to-lead resistance of 25 °C/W - allows direct heat sinking via leads for sustained 5 W operation |
| Pb-free compliance | RoHS-compliant Surmetic 40 package - meets global environmental regulations without sacrificing reliability |
Applications
| DC Power Supply Reference | Overvoltage Clamp Circuit |
|---|---|
Use Scenario: Stabilizing feedback voltage in linear regulators or switching converter error amplifiers. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 62 V reference point for error detection and correction. Use Value: Maintains ±0.3 V regulation accuracy over 10–50% IZM range, reducing output drift in 48 V telecom and industrial power systems. |
Use Scenario: Protecting microcontroller I/O pins or sensor inputs from transient overvoltage events. IC Role / Device Role / Timing Role: Passive clamp element that conducts above 62 V to divert surge energy to ground. Use Value: Limits voltage excursion to ≤65.1 V during 180 W/8.3 ms surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic interfaces. |
| Programmable Voltage Monitor | High-Voltage Bias Generator |
Use Scenario: Enabling threshold detection in battery management or industrial alarm systems. IC Role / Device Role / Timing Role: Precision voltage threshold element triggering comparator input at 62 V ±3.1 V. Use Value: Delivers <1.5% total error (tolerance + tempco) over −40 °C to +125 °C, supporting reliable fault detection in EV charging infrastructure. |
Use Scenario: Generating stable bias for photomultiplier tubes or high-voltage op-amp stages. IC Role / Device Role / Timing Role: Low-noise, low-drift DC voltage source supplying regulated 62 V to analog front-end components. Use Value: Achieves <20 Ω dynamic impedance and <1.35 μA leakage at 47.1 V, minimizing current draw and thermal drift in precision HV instrumentation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5372BRL | Same electrical specs but SnPb lead finish; not RoHS-compliant | Acceptable only where Pb-free mandate does not apply (legacy military/aerospace) | Select 1N5372BRLG for new designs requiring RoHS compliance and modern assembly processes |
| BZX85C62 | 1.3 W rating, 62 V ±5%, TO-220 package, higher ZZT (40 Ω) | Limited to lower-power clamping; unsuitable for 5 W continuous dissipation | Choose 1N5372BRLG when >1.3 W steady-state power handling or axial-lead form factor is required |
Compared with 1N5372BRL and BZX85C62, the 1N5372BRLG uniquely combines 5 W power rating, ±5% tolerance, axial-lead manufacturability, and Pb-free compliance-making it the optimal choice for high-reliability, high-power Zener regulation in automotive and industrial systems.
Availability
1N5372BRLG is available at Aetrix Electronics and suitable for DC power supply reference, overvoltage clamp circuit, and programmable voltage monitor applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for 1N5372BRLG 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 specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1N53 Series belongs to onsemi's discrete Zener diode product line, engineered for high-stability voltage regulation and transient suppression in harsh-environment power systems.
FAQ
What is the nominal zener voltage and tolerance of the 1N5372BRLG?
The 1N5372BRLG has a nominal zener voltage of 62 V with a guaranteed tolerance of ±5%, corresponding to a minimum of 58.9 V and maximum of 65.1 V at 42 mA test current (IZT). This tight tolerance is specified per JEDEC standards and validated across the full operating temperature range, making the 1N5372BRLG suitable for precision reference applications where voltage stability is critical.
What is the maximum continuous power dissipation for the 1N5372BRLG?
The 1N5372BRLG is rated for 5 W steady-state power dissipation at TL = 25 °C with 3/8″ lead length. Derating is required above 25 °C at 40 mW/°C, based on its junction-to-lead thermal resistance of 25 °C/W. The actual maximum DC zener current (IZM) is 400 mA, calculated as 5 W ÷ 62 V ≈ 80.6 mA - but the datasheet specifies 400 mA as the absolute maximum current limit for the 62 V unit, reflecting conservative thermal design margins.
Does the 1N5372BRLG have Pb-free packaging and RoHS compliance?
Yes, the "G" suffix in 1N5372BRLG explicitly denotes a Pb-free package compliant with RoHS Directive 2011/65/EU. The device uses a Surmetic 40 transfer-molded plastic case with corrosion-resistant, readily solderable leads and is qualified for both wave and reflow soldering at 260 °C for 10 seconds at 1/16″ from the case. This makes the 1N5372BRLG suitable for environmentally regulated manufacturing environments.
What is the zener impedance of the 1N5372BRLG and why does it matter?
The 1N5372BRLG has a maximum zener impedance (ZZT) of 20 Ω at IZT = 42 mA. This low dynamic impedance ensures minimal change in regulated voltage under varying load currents - critical for maintaining accuracy in feedback loops and clamp circuits. For example, a 10 mA load step results in only ~0.2 V deviation (10 mA × 20 Ω), preserving system stability in sensitive analog and power control applications.
Can the 1N5372BRLG be used in automotive under-hood applications?
Yes, the 1N5372BRLG is rated for an operating temperature range of −65 °C to +200 °C, with DC operation up to +150 °C and pulsed conditions up to +200 °C. Its silicon-oxide passivated junction, robust Surmetic 40 package, and 180 W surge rating make it suitable for under-hood automotive applications such as engine control module voltage supervision, battery disconnect monitoring, and alternator overvoltage protection - provided thermal management aligns with its 25 °C/W θJL specification.
1N5372BRLG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 62 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 42 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 47.1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1N5372BRLG FAQ
1.How can I place an order for 1N5372BRLG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5372BRLG 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 1N5372BRLG reliable?
The price and inventory of 1N5372BRLG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5372BRLG is usually 5 days.
3.What payment methods are accepted for 1N5372BRLG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5372BRLG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5372BRLG?
1N5372BRLG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5372BRLG 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 1N5372BRLG?
For technical support, including 1N5372BRLG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5372BRLG requirements.
6.How does Aetrix verify that 1N5372BRLG is sourced from the original manufacturer or authorized distributors?
All 1N5372BRLG 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 1N5372BRLG meets industry standards.
7.What is the process for return or replacement of 1N5372BRLG?
All 1N5372BRLG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5372BRLG, 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 1N5372BRLG part is unused and in its original packaging.
Return procedure for 1N5372BRLG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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