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onsemi 1N5375BG
- Part No.:
- 1N5375BG
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1N5375BG.pdf
- Description:
- DIODE ZENER 82V 5W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:864
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Product details
Overview
1N5375BG from onsemi is a 5 W axial-lead Zener diode with nominal zener voltage of 82 V, ±5% tolerance, maximum zener impedance of 15 Ω at 65 mA test current, and surge rating of 720 A at 8.3 ms. It operates across −65°C to +200°C and is used for precision voltage regulation in DC power supply reference circuits.
For engineers reviewing the 1N5375BG datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage stability under thermal stress, low dynamic impedance at rated current, Pb-free axial package compatibility with wave soldering, and compliance with Class 3 ESD (>16 kV HBM).
Technical Context
This device employs silicon-oxide passivated junction technology to achieve tight voltage tolerance and stable regulation over temperature. Its thermal design relies on junction-to-lead conduction (θJL = 25°C/W), with lead length (3/8″) directly affecting steady-state power derating above 25°C.
The 1N5375BG delivers regulated output via reverse-biased operation, with specified leakage current ≤1.8 μA at 62.2 V and forward voltage ≤1.2 V at 1.0 A. Temperature coefficient is positive and rises with nominal VZ, falling within the 110–140 mV/°C range typical for 82 V units.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 77.9 V min / 82 V nom / 86.1 V max - defines regulation setpoint with ±5% tolerance at IZT = 65 mA |
| Max Power Dissipation | 5 W @ TL = 25°C - limits continuous DC load capability; derates 40 mW/°C above 25°C |
| Zener Impedance (ZZT) | 15 Ω max @ IZT = 65 mA - ensures minimal output voltage variation under load transients |
| Surge Current (IR) | 720 A peak @ 8.3 ms - supports transient overvoltage clamping without failure |
| Leakage Current (IR) | ≤1.8 μA @ VR = 62.2 V - guarantees low standby power loss in high-impedance bias networks |
| ESD Rating | Class 3 (>16 kV) per HBM - enables robust handling in automated assembly without protection circuitry |
| Operating Temp Range | −65°C to +200°C - suitable for under-hood automotive, industrial control, and aerospace environments |
Pinout & Package
Package: Axial-lead, transfer-molded plastic (Case 017AA), Pb-free, cathode indicated by band. Dimensions: 8.38–8.89 mm length × 3.30–3.68 mm diameter; leads 25.4–31.75 mm long.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node in shunt regulator | Connected to system ground or lower-potential rail; carries full load current during regulation |
| Cathode | Zener breakdown terminal / Regulated output node | Connected to input supply through current-limiting resistor; maintains stable 82 V relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Silicon-oxide passivated junction | Enables ±5% VZ tolerance and stable long-term regulation without parameter drift |
| Void-free thermosetting plastic case | Provides hermetic-grade environmental protection against moisture, dust, and chemical exposure |
| 260°C solderability | Supports standard wave-solder profiles without delamination or internal damage |
| Surge-rated construction | Withstands 180 W non-repetitive surges (8.3 ms) - exceeds IEC 61000-4-5 Level 4 requirements |
| Pb-free compliance | Fulfills RoHS Directive 2011/65/EU and JEDEC J-STD-609A Class 3 marking requirements |
Applications
| Industrial Power Supply Reference | Automotive Engine Control Unit (ECU) Bias Network |
|---|---|
Use Scenario: Provides stable 82 V reference for isolated feedback loops in 48 V telecom rectifiers. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precise DC reference for optocoupler-driven PWM controllers. Use Value: Low 15 Ω ZZT minimizes output ripple under 65 mA load steps, improving regulation accuracy to ±0.5%. | Use Scenario: Supplies regulated bias to high-side driver ICs in 12 V/24 V dual-battery vehicle systems. IC Role / Device Role / Timing Role: Zener clamp protecting gate-drive logic inputs from load-dump transients up to 120 V. Use Value: 720 A surge rating absorbs ISO 7637-2 Pulse 5a energy without degradation, extending system lifetime. |
| Test Equipment Calibration Circuit | Renewable Energy Inverter DC Link Monitor |
Use Scenario: Serves as traceable voltage standard in portable multimeter front-end attenuator stages. IC Role / Device Role / Timing Role: Precision shunt reference enabling 0.1% full-scale accuracy in 100 V measurement ranges. Use Value: −65°C to +200°C operating range allows calibration stability across environmental chambers without recalibration. | Use Scenario: Monitors 800 V DC link voltage in solar string inverters using resistive divider with overvoltage protection. IC Role / Device Role / Timing Role: Clamping diode limiting divider node voltage to safe levels during grid fault conditions. Use Value: 1.8 μA leakage at 62.2 V prevents significant error current in high-impedance (≥1 MΩ) sensing networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5375B | Same electrical specs but SnPb lead finish; not RoHS-compliant | Restricted to legacy industrial repair or non-RoHS markets | Select only if Pb-free compliance is not required and existing inventory mandates SnPb reflow profile |
| MMBZ5277ET1G | Surface-mount SOT-23; 82 V nominal but 350 mW rating; higher ZZT (35 Ω) | For space-constrained PCBs where axial lead insertion is impractical | Use when board area is critical and power dissipation remains below 350 mW; verify thermal pad layout |
Compared with 1N5375B, the 1N5375BG offers identical regulation performance with Pb-free processing, while MMBZ5277ET1G trades package size and power handling for surface-mount compatibility-neither is pin-compatible, requiring layout revision.
Availability
1N5375BG is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECU bias networks, and test equipment calibration circuits requiring stable component supply with full RoHS and REACH compliance.
Supply support for 1N5375BG 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The 1N53 Series belongs to onsemi's Surmetic™ 40 Zener regulator family, engineered for high-reliability DC voltage reference and transient suppression in harsh-environment power systems.
FAQ
What is the exact zener voltage tolerance and test condition for 1N5375BG?
The 1N5375BG has a ±5% zener voltage tolerance, verified at IZT = 65 mA with 40 ±10 ms current application prior to measurement. The nominal voltage is 82 V, with minimum 77.9 V and maximum 86.1 V under these conditions. This tolerance applies specifically to the B-suffix device per JEDEC standards and is guaranteed across the full operating temperature range.
Can 1N5375BG be used in surface-mount designs?
No, the 1N5375BG is an axial-lead through-hole device in Case 017AA package and cannot be mounted directly on SMT pads. For surface-mount alternatives, consider MMBZ5277ET1G (SOT-23, 82 V), though it delivers only 350 mW versus the 1N5375BG's 5 W. Any replacement requires PCB layout revision and thermal validation due to differing package geometries and power handling.
What is the maximum allowable surge current for 1N5375BG and at what pulse width?
The 1N5375BG supports a peak non-repetitive surge current of 720 A at 8.3 ms pulse width, per Figure 5 in the onsemi datasheet. This rating assumes single-event, square-wave excitation and is validated under TA = 25°C with specified mounting contact location. Longer pulses require derating per the transient thermal resistance curve in Figure 4.
How does temperature affect the zener voltage of 1N5375BG?
The 1N5375BG exhibits a positive temperature coefficient in the range of 110–140 mV/°C, consistent with 82 V Zener devices per Figure 3. At elevated temperatures, VZ increases linearly; for example, a +50°C rise above 25°C raises the nominal 82 V by approximately 5.5–7 V. Designers must account for this shift in precision reference applications using thermal modeling or compensation networks.
Is 1N5375BG compatible with lead-free reflow soldering processes?
Yes, the 1N5375BG is Pb-free and rated for 260°C maximum lead temperature for 10 seconds at 1/16 inch from the case, making it compatible with standard lead-free wave soldering. It is not designed for reflow soldering due to its axial-lead construction and thermal mass; hand-soldering or wave processes are recommended per onsemi's Soldering and Mounting Techniques Reference Manual.
1N5375BG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 82 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 65 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 62.2 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
1N5375BG FAQ
1.How can I place an order for 1N5375BG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5375BG 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 1N5375BG reliable?
The price and inventory of 1N5375BG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5375BG is usually 5 days.
3.What payment methods are accepted for 1N5375BG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5375BG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5375BG?
1N5375BG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5375BG 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 1N5375BG?
For technical support, including 1N5375BG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5375BG requirements.
6.How does Aetrix verify that 1N5375BG is sourced from the original manufacturer or authorized distributors?
All 1N5375BG 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 1N5375BG meets industry standards.
7.What is the process for return or replacement of 1N5375BG?
All 1N5375BG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5375BG, 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 1N5375BG part is unused and in its original packaging.
Return procedure for 1N5375BG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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