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onsemi 1N6014B_T50A
- Part No.:
- 1N6014B_T50A
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N6014B_T50A.pdf
- Description:
- DIODE ZENER 39V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:2,600
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Product details
Overview
1N6014B_T50A from Fairchild Semiconductor is a 39 V ±5% Zener diode in DO-35 glass package, rated for 500 mW power dissipation at TL ≤ 75°C with 4.0 mW/°C derating, 130 Ω zener impedance at 5 mA test current, and 0.1 mA leakage current at 30 V reverse voltage. It provides precision voltage regulation in low-power analog reference and overvoltage protection circuits.
For engineers reviewing the 1N6014B_T50A datasheet, pinout, applications, or equivalent options, key selection criteria include its 39 V nominal Zener voltage, DO-35 axial leaded package, 5 mA test current, 130 Ω dynamic impedance, and -65°C to +200°C operating temperature range.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load and line conditions. Its 5% tolerance and tight 37.05–40.95 V Zener voltage range (min–max) ensure predictable clamping behavior in feedback networks and voltage references.
The device uses a glass-passivated junction in a hermetically sealed DO-35 package, enabling reliable operation up to 200°C junction temperature. Its 130 Ω impedance at 5 mA and 800 Ω impedance at 250 µA support stable regulation in both active biasing and transient suppression roles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 39 V nominal, 37.05–40.95 V min–max at 5 mA - defines precise clamping threshold for voltage reference and protection |
| Power Dissipation (PD) | 500 mW @ TL ≤ 75°C - sets maximum continuous thermal load in lead-mounted PCB designs |
| Zener Impedance (ZZ) | 130 Ω @ IZ = 5 mA - determines output voltage variation under load current changes |
| Leakage Current (IR) | 0.1 mA @ VR = 30 V - ensures minimal standby power loss in high-impedance bias networks |
| Operating Temperature | -65°C to +200°C - supports deployment in automotive under-hood, industrial control, and aerospace environments |
| Forward Voltage (VF) | 1.2 V max @ IF = 200 mA - enables use as low-drop rectifier or ESD clamp in bidirectional protection schemes |
Pinout & Package
DO-35 glass axial-leaded package with cathode indicated by color band. Leads are tinned copper-clad steel, 0.46 mm diameter, 25.4 mm minimum length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal in forward bias; connected to lower-potential node in Zener regulation | Accepts forward current up to 200 mA; forms return path for regulated output current |
| Cathode | Negative terminal in forward bias; higher-potential node in Zener regulation | Connected to regulated voltage rail; color band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables accurate voltage setting without external trimming in precision reference circuits |
| DO-35 glass package | Provides hermetic sealing and high-temperature reliability for harsh-environment applications |
| 130 Ω dynamic impedance at 5 mA | Minimizes output voltage deviation under ±1 mA load current variation in feedback loops |
| 0.1 mA leakage at 30 V | Reduces quiescent current error in high-gain op-amp reference stages |
Applications
| Industrial Sensor Reference | DC-DC Converter Feedback |
|---|---|
Use Scenario: Providing stable 39 V reference for 4–20 mA transmitter loop-powered sensors operating in factory-floor environments. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, establishing precise bias point for current-loop DAC and amplifier stages. Use Value: Tight 5% tolerance and low 130 Ω impedance ensure sensor output accuracy remains within ±0.25% full scale over temperature. | Use Scenario: Setting upper feedback threshold in isolated flyback converter secondary-side regulation using optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Zener diode clamps optocoupler LED anode voltage to 39 V, defining maximum output overvoltage trip point. Use Value: 0.1 mA leakage at 30 V prevents false triggering during light-load conditions while maintaining fast response to overvoltage events. |
| Automotive ECU Power Rail Clamp | Test Equipment Voltage Calibrator |
Use Scenario: Protecting microcontroller I/O pins and ADC inputs against load-dump transients on 24 V vehicle battery rails. IC Role / Device Role / Timing Role: Zener diode functions as passive overvoltage clamp, diverting surge energy to ground when rail exceeds 39 V. Use Value: DO-35 glass construction withstands 200°C ambient in engine compartment; 500 mW rating handles short-duration 12 V/24 V system surges. | Use Scenario: Generating traceable 39 V calibration points in portable multimeter and DMM reference modules. IC Role / Device Role / Timing Role: Zener diode serves as primary voltage standard in buffered reference divider chain with low-TC resistors. Use Value: -65°C to +200°C operating range allows thermal stabilization during calibration drift testing; 5% tolerance meets Class II metrology requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4751A (ON Semiconductor) | 39 V nominal, ±5%, 1 W power rating, DO-41 package, 150 Ω ZZ @ 5 mA | Higher power handling enables use in higher-current regulation; larger DO-41 footprint requires PCB layout change | Select when >500 mW dissipation or improved thermal margin is required; not drop-in due to package size |
| BZX55-C39 (Vishay) | 39 V nominal, ±5%, 500 mW, DO-35 package, 130 Ω ZZ @ 5 mA, 0.1 mA IR @ 30 V | Identical electrical specs and DO-35 form factor; different marking and qualification standards | Direct physical and electrical replacement; verify compliance with AEC-Q200 if automotive qualified design is required |
Compared with 1N6014B_T50A, the 1N4751A offers higher power but requires board rework, while the BZX55-C39 matches all key parameters and DO-35 dimensions-making it a seamless substitute where Vishay qualification is acceptable.
Availability
1N6014B_T50A is available at Aetrix Electronics and suitable for industrial sensor reference, DC-DC converter feedback, and automotive ECU power rail clamp applications requiring stable component supply and long-term obsolescence management.
Supply support for 1N6014B_T50A 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
Fairchild Semiconductor was a U.S.-based semiconductor company specializing in power management, signal conditioning, and discrete components before its acquisition by ON Semiconductor in 2016.
The 1N6014B_T50A belongs to Fairchild's legacy 1N5985B–1N6025B Zener diode family, engineered for precision voltage regulation and transient suppression in cost-sensitive, high-reliability industrial and automotive systems.
FAQ
What is the nominal Zener voltage of the 1N6014B_T50A?
The 1N6014B_T50A has a nominal Zener voltage of 39 V, with a guaranteed range of 37.05 V (min) to 40.95 V (max) at 5 mA test current and ±5% tolerance. This value is measured under thermal equilibrium at lead temperature of 30°C ±1°C with 3/8" lead length, per Fairchild's characterization methodology.
What package type does the 1N6014B_T50A use?
The 1N6014B_T50A uses a DO-35 glass axial-leaded package with cathode identified by a color band. The package features tinned copper-clad steel leads (0.46 mm diameter, ≥25.4 mm length) and is hermetically sealed for high-temperature reliability up to +200°C junction temperature.
What is the maximum power dissipation rating for the 1N6014B_T50A?
The 1N6014B_T50A is rated for 500 mW power dissipation at lead temperature (TL) ≤ 75°C. Above 75°C, it derates linearly at 4.0 mW/°C. This rating assumes 3/8" lead length and defines the safe continuous operating envelope for PCB-mounted thermal design.
Does the 1N6014B_T50A have specified forward voltage characteristics?
Yes-the 1N6014B_T50A has a maximum forward voltage (VF) of 1.2 V at forward current (IF) = 200 mA. This parameter supports dual-use cases such as low-voltage rectification or bidirectional ESD clamping in conjunction with its Zener regulation function.
What is the Zener impedance of the 1N6014B_T50A and why does it matter?
The 1N6014B_T50A exhibits 130 Ω Zener impedance (ZZ) at 5 mA test current. This value quantifies how much the output voltage varies with load current changes-lower impedance yields tighter regulation. At 250 µA, ZZK rises to 800 Ω, indicating reduced effectiveness at very light loads.
1N6014B_T50A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 39 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 130 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 30 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-35
1N6014B_T50A FAQ
1.How can I place an order for 1N6014B_T50A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6014B_T50A 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 1N6014B_T50A reliable?
The price and inventory of 1N6014B_T50A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6014B_T50A is usually 5 days.
3.What payment methods are accepted for 1N6014B_T50A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6014B_T50A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6014B_T50A?
1N6014B_T50A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6014B_T50A 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 1N6014B_T50A?
For technical support, including 1N6014B_T50A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6014B_T50A requirements.
6.How does Aetrix verify that 1N6014B_T50A is sourced from the original manufacturer or authorized distributors?
All 1N6014B_T50A 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 1N6014B_T50A meets industry standards.
7.What is the process for return or replacement of 1N6014B_T50A?
All 1N6014B_T50A units undergo pre-shipment inspection (PSI). If there is an issue with 1N6014B_T50A, 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 1N6014B_T50A part is unused and in its original packaging.
Return procedure for 1N6014B_T50A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6014B_T50A Tags
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