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onsemi 1N5372BRL
- Part No.:
- 1N5372BRL
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5372BRL.pdf
- Description:
- DIODE ZENER 62V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,735
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Product details
Overview
1N5372BRL 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 maximum leakage current at 47.1 V reverse voltage. 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 1N5372BRL datasheet, pinout, applications, or equivalent options, key selection criteria include its 62 V nominal breakdown voltage, 400 mA maximum DC zener current, 180 W surge rating at 8.3 ms, and Pb-free Surmetic 40 plastic package with cathode band polarity marking.
Technical Context
This device uses a silicon-oxide passivated junction for tight voltage tolerance and low dynamic impedance. Its thermal design relies on junction-to-lead conduction (θJL = 25 °C/W) with 3/8″ lead length, enabling reliable power dissipation up to 5 W at 25°C ambient.
The 1N5372BRL exhibits a positive temperature coefficient above 6 V (≈+0.08 %/°C typical per Figure 3), supporting stable regulation under varying thermal conditions. It meets Class 3 ESD immunity (>16 kV HBM) and withstands non-repetitive 8.3 ms surges up to 42 A peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 58.9 V (min) to 65.1 V (max) at IZT = 42 mA - defines regulated output range under standard test conditions |
| Power Dissipation (PD) | 5 W at TL = 25°C - sets maximum continuous DC power handling before thermal derating begins |
| Zener Impedance (ZZT) | 20 Ω max at IZT = 42 mA - ensures low AC ripple rejection and tight regulation under load variation |
| Leakage Current (IR) | 1.35 μA max at VR = 47.1 V - guarantees minimal standby current in high-impedance bias networks |
| Surge Current (IRM) | 42 A peak at 8.3 ms pulse width - enables transient overvoltage clamping without failure |
| Operating Temperature | −65°C to +200°C - supports deployment in automotive engine compartments and industrial power systems |
| ESD Rating | Class 3 (>16 kV) per HBM - provides robust handling during PCB assembly and field service |
Pinout & Package
Package: Axial-lead Surmetic 40 plastic case (Case 017AA), void-free transfer-molded thermosetting material, cathode indicated by color band, RoHS-compliant Pb-free construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side reference node | Connected to circuit ground or lower potential; carries full zener current during regulation |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable 62 V reference when reverse-biased; marked with band for polarity identification |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Guarantees tight regulation window (58.9–65.1 V) without post-manufacture trimming |
| 25 °C/W junction-to-lead thermal resistance | Enables 5 W power dissipation with minimal heatsinking when leads are mounted to PCB copper |
| 180 W surge rating at 8.3 ms | Clamps line transients such as ISO 7637-2 Pulse 1/2a without degradation |
| Class 3 ESD immunity (>16 kV HBM) | Eliminates need for external ESD protection in board-level handling and integration |
| Corrosion-resistant, solderable leads | Supports wave and reflow soldering at 260°C for 10 seconds without delamination |
Applications
| DC Power Supply Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Precision 62 V reference in linear regulator feedback loop or ADC reference divider network. IC Role / Device Role / Timing Role: Zener diode providing stable, temperature-compensated voltage reference point. Use Value: Delivers <±0.5% output stability over −40°C to +125°C due to predictable +0.08%/°C tempco and low ZZT. |
Use Scenario: Clamping 72 V automotive battery transients to protect downstream 60 V-rated MOSFET gate drivers. IC Role / Device Role / Timing Role: Standalone overvoltage clamp absorbing 8.3 ms ISO 7637-2 Pulse 1 energy. Use Value: Withstands 42 A surge current without parametric shift, preserving system reliability during load dump events. |
| Industrial Sensor Excitation | Programmable Current Source Bias |
Use Scenario: Exciting 10 kΩ RTD or strain gauge bridge requiring stable 62 V excitation in factory automation PLC modules. IC Role / Device Role / Timing Role: High-voltage, low-drift bias source for precision analog front-ends. Use Value: 1.35 μA leakage at 47.1 V ensures <0.1% error contribution in 100 μA bridge excitation circuits. |
Use Scenario: Setting reference voltage for LM317-based constant-current source delivering 100 mA to LED strings. IC Role / Device Role / Timing Role: Zener-regulated control node defining current-set resistor voltage drop. Use Value: 20 Ω ZZT minimizes current drift under varying input voltage, maintaining ±1.5% output current accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5372B | Same electrical specs but in 1000-unit box packaging (not tape-and-reel); identical Surmetic 40 axial package | No difference in circuit function or layout; only differs in logistics format | Select 1N5372B for manual prototyping or low-volume hand-soldered builds |
| BZX85C62 | Lower power rating (1.3 W), higher ZZT (40 Ω), wider tolerance (±10%), TO-204AA metal can package | Not suitable for 5 W continuous operation or high-surge environments; limited thermal mass | Choose BZX85C62 only where space constraints prohibit axial leads and power demand is ≤1.3 W |
Compared with 1N5372BRL, the 1N5372B offers identical performance in a different packaging format ideal for low-volume assembly, while BZX85C62 trades power capability and surge resilience for compactness-making it unsuitable for 5 W regulation or automotive transients.
Availability
1N5372BRL is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, and test equipment requiring stable component supply with traceable Pb-free sourcing and long-term lifecycle support.
Supply support for 1N5372BRL 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, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The 1N53 Series belongs to onsemi's legacy Zener regulator portfolio designed for high-reliability DC voltage reference and transient suppression in harsh-environment applications.
FAQ
What is the nominal zener voltage and tolerance of the 1N5372BRL?
The 1N5372BRL 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 when tested at 42 mA zener current (IZT). This tight tolerance eliminates the need for calibration in most precision reference designs and is confirmed in the onsemi datasheet revision 19, page 3.
Can the 1N5372BRL be used in surface-mount designs?
No, the 1N5372BRL is an axial-lead device in the Surmetic 40 plastic package (Case 017AA) and is not compatible with SMT assembly processes. It requires through-hole mounting with 3/8″ lead length for thermal performance. For SMT alternatives, consider the SMAZ62 series or BZX84-C62, though neither matches the 5 W power rating or 180 W surge capability of the 1N5372BRL.
What is the maximum DC zener current rating for the 1N5372BRL?
The 1N5372BRL has a maximum DC zener current (IZM) of 400 mA, calculated as 5 W divided by the minimum zener voltage (58.9 V). This value is explicitly listed in the Electrical Characteristics table on page 3 of the onsemi datasheet and reflects the highest continuous reverse current the device can sustain without exceeding its 5 W power limit at 25°C lead temperature.
Does the 1N5372BRL meet RoHS requirements?
Yes, the 1N5372BRL is a Pb-free device as indicated by the "G" suffix in its ordering code and confirmed in the datasheet's Ordering Information section. It complies with RoHS Directive 2011/65/EU and is manufactured using onsemi's certified Pb-free process, with corrosion-resistant, solderable leads rated for 260°C for 10 seconds.
How does the 1N5372BRL handle transient overvoltage events?
The 1N5372BRL supports non-repetitive surge currents up to 42 A for 8.3 ms (180 W peak), validated per Figure 5 in the onsemi datasheet. Its silicon-oxide passivated junction and axial thermal path enable reliable clamping of automotive load-dump transients and industrial switching surges without parameter shift or failure, provided the duty cycle remains non-repetitive.
1N5372BRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
1N5372BRL FAQ
1.How can I place an order for 1N5372BRL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5372BRL 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 1N5372BRL reliable?
The price and inventory of 1N5372BRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5372BRL is usually 5 days.
3.What payment methods are accepted for 1N5372BRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5372BRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5372BRL?
1N5372BRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5372BRL 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 1N5372BRL?
For technical support, including 1N5372BRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5372BRL requirements.
6.How does Aetrix verify that 1N5372BRL is sourced from the original manufacturer or authorized distributors?
All 1N5372BRL 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 1N5372BRL meets industry standards.
7.What is the process for return or replacement of 1N5372BRL?
All 1N5372BRL units undergo pre-shipment inspection (PSI). If there is an issue with 1N5372BRL, 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 1N5372BRL part is unused and in its original packaging.
Return procedure for 1N5372BRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5372BRL Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZT52C15-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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SMAJ4744A-TP
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SMAZ12-13-F
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