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onsemi 1N5926BG
- Part No.:
- 1N5926BG
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N5926BG.pdf
- Description:
- DIODE ZENER DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:1,513
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Product details
Overview
1N5926BG from ON Semiconductor is a 3 W axial-lead Zener diode in DO−41 package, rated for 11 V nominal Zener voltage (10.45–11.55 V), 5.5 mA test current (IZT), and 34.1 Ω maximum Zener impedance at IZT. It provides precise voltage regulation in power supply feedback loops, overvoltage protection circuits, and reference voltage generation for industrial sensor interfaces.
For engineers reviewing the 1N5926BG datasheet, pinout, applications, or equivalent options, this device is selected for stable 11 V clamping under DC and transient conditions, with Class 3 ESD immunity (>16 kV HBM), 98 W surge capability at 1 ms, and operation across −65 °C to +200 °C junction temperature range.
Technical Context
This Zener regulator operates in reverse breakdown mode with tightly controlled voltage tolerance (±5%), defined at TL = 30 °C with 3/8″ lead length. Its silicon-oxide passivated junction ensures low leakage (≤0.25 μA at VR = 8.4 V) and stable long-term performance under thermal cycling.
The device exhibits a positive temperature coefficient near 11 V (≈+3.5 mV/°C per Figure 5), enabling predictable drift compensation in precision references. Thermal resistance from junction-to-lead (θJL) is 35 °C/W at 3/8″ lead length, supporting reliable 3 W steady-state dissipation at TL ≤ 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.45–11.55 V @ IZT = 5.5 mA - defines regulated output voltage window under standard test conditions |
| Max Power Dissipation | 3 W @ TL = 75 °C - supports continuous regulation in compact PCB layouts with minimal heatsinking |
| Zener Impedance (ZZT) | 34.1 Ω max @ IZT - determines AC regulation error under varying load current |
| Reverse Leakage (IR) | ≤0.25 μA @ VR = 8.4 V - ensures minimal quiescent current in high-impedance bias networks |
| Surge Rating | 98 W @ 1 ms - withstands short-duration transients without degradation in power rail protection |
| ESD Rating | Class 3 (>16 kV HBM) - survives handling and board-level ESD events without parameter shift |
| Operating Temp Range | −65 °C to +200 °C - enables use in automotive engine compartments and industrial motor drives |
Pinout & Package
DO−41 axial-leaded plastic package (Case 59−10), void-free transfer-molded thermosetting material; cathode indicated by band; leads solderable per J-STD-020; max solder temperature 260 °C at 1/16″ from case for 10 s.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to higher-potential side of circuit; voltage referenced to anode; polarity critical for correct clamping direction |
| Anode | Reference/ground node | Typically tied to system ground or lower-potential rail; establishes reverse-bias condition for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Guarantees tight regulation window without external trimming, reducing BOM count in cost-sensitive designs |
| Pb−Free (RoHS-compliant) package | Enables compliance with global environmental regulations without derating or process changes |
| Surmetic 30 silicon-oxide passivation | Delivers stable leakage and impedance over time and temperature, critical for 10+ year field reliability |
| Package size matches 1 W diodes | Allows drop-in upgrade from lower-power Zeners without PCB layout revision |
| 6-parameter electrical guarantee | Ensures full specification compliance across VZ, IZT, ZZT, IR, IZM, and VF - reduces incoming inspection burden |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters using optocoupler feedback. IC Role / Device Role / Timing Role: Zener reference for TL431-like shunt regulator or direct feedback node for PWM controller. Use Value: 11 V nominal breakdown enables precise 12 V rail regulation with <±1% error over line/load/temperature. |
Use Scenario: Protecting microcontroller I/O pins from 12 V bus transients in automotive body control modules. IC Role / Device Role / Timing Role: Clamping element placed between I/O line and ground to limit voltage excursion. Use Value: 98 W surge rating absorbs ISO 7637-2 Pulse 1/2a spikes without failure; 0.25 μA leakage avoids signal distortion. |
| Voltage Reference | Current Source Bias |
Use Scenario: Generating stable 11 V reference for analog-to-digital converter (ADC) input scaling in industrial sensors. IC Role / Device Role / Timing Role: Precision voltage source feeding resistive divider network into ADC reference pin. Use Value: ±5% tolerance and low ZZT ensure <0.5% full-scale error contribution; 200 °C max TJ supports harsh-environment deployment. |
Use Scenario: Setting bias current for LED driver ICs in signage applications requiring constant brightness. IC Role / Device Role / Timing Role: Series element in constant-current loop where VZ defines ISET via RSET. Use Value: Stable 11 V reference enables ±2% current accuracy across −40 °C to +85 °C ambient; low tempco minimizes drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5242B | 500 mW rating, 12 V nominal, DO−35 package | Lower power; unsuitable for >0.5 W continuous dissipation | Select when space-constrained and power <0.4 W; verify thermal margin with θJA = 500 °C/W |
| BZX84-C11 | 300 mW SOT−23 surface-mount, ±5% tolerance | No axial leads; requires reflow-compatible layout; lower surge rating (40 W) | Choose for automated assembly and board density; confirm PCB pad thermal relief for 11 V regulation |
Compared with 1N5926BG, the 1N5242B offers smaller footprint but cannot sustain 3 W loads, while BZX84-C11 enables miniaturization yet sacrifices surge robustness and thermal mass-making 1N5926BG optimal for high-reliability, high-energy clamp and reference roles.
Availability
1N5926BG is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and sensor signal conditioning requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N5926BG 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 (now onsemi) is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1N59xxB series was designed as a high-reliability, high-surge-capability Zener family for mission-critical voltage regulation and protection in demanding environments-emphasizing rugged packaging, guaranteed parametric limits, and extended temperature operation.
FAQ
What is the Zener voltage tolerance for 1N5926BG?
The 1N5926BG has a guaranteed ±5% Zener voltage tolerance, with a nominal value of 11 V and specified range of 10.45 V to 11.55 V at IZT = 5.5 mA and TL = 30 °C. This tolerance is confirmed in the Electrical Characteristics table of the official ON Semiconductor datasheet (Rev. 5, April 2006), and applies to all units bearing the "B" suffix.
Can 1N5926BG be used in surface-mount designs?
No-1N5926BG uses an axial-lead DO−41 package (Case 59−10) and is not compatible with surface-mount assembly. It requires through-hole mounting with 3/8″ lead length for full 3 W power rating. For SMT alternatives, consider BZX84-C11 or MMBZ5242B, but note their lower power and surge ratings compared to 1N5926BG.
What is the maximum DC zener current (IZM) for 1N5926BG?
The maximum DC Zener current for 1N5926BG is 136 mA, calculated as PD/VZ(min) = 3 W / 10.45 V. This value is explicitly listed in the Electrical Characteristics table and reflects the highest continuous reverse current the device can safely conduct while maintaining regulation and thermal stability at TL ≤ 75 °C.
Does 1N5926BG have RoHS-compliant packaging?
Yes-the "G" suffix in 1N5926BG denotes a Pb−Free (RoHS-compliant) package, as confirmed in the Ordering Information section of the datasheet. The device uses void-free, transfer-molded thermosetting plastic and meets JEDEC DO−41 mechanical standards without lead content.
How does temperature affect the Zener voltage of 1N5926BG?
At ~11 V, 1N5926BG exhibits a positive temperature coefficient of approximately +3.5 mV/°C (per Figure 5), meaning its Zener voltage increases linearly with junction temperature. This behavior is inherent to the silicon-oxide passivated junction and must be accounted for in precision reference designs operating across wide temperature ranges.
1N5926BG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
1N5926BG FAQ
1.How can I place an order for 1N5926BG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5926BG 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 1N5926BG reliable?
The price and inventory of 1N5926BG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5926BG is usually 5 days.
3.What payment methods are accepted for 1N5926BG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5926BG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5926BG?
1N5926BG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5926BG 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 1N5926BG?
For technical support, including 1N5926BG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5926BG requirements.
6.How does Aetrix verify that 1N5926BG is sourced from the original manufacturer or authorized distributors?
All 1N5926BG 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 1N5926BG meets industry standards.
7.What is the process for return or replacement of 1N5926BG?
All 1N5926BG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5926BG, 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 1N5926BG part is unused and in its original packaging.
Return procedure for 1N5926BG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5926BG Tags
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