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onsemi 1N6016B_T50A
- Part No.:
- 1N6016B_T50A
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N6016B_T50A.pdf
- Description:
- DIODE ZENER 47V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:9,007
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Product details
Overview
1N6016B_T50A from Fairchild Semiconductor is a 47 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, 2 mA test current, and 170 Ω zener impedance at IZ; used for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the 1N6016B_T50A datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage (47 V), tolerance (±5%), maximum Zener current (170 mA), leakage current (0.1 mA at 36 V), and thermal derating behavior in through-hole designs.
Technical Context
This device operates as a two-terminal voltage reference diode with sharp reverse breakdown at 47 V under 2 mA test current. Its DO-35 glass package supports axial lead mounting and provides stable thermal performance up to +200°C junction temperature.
The 1N6016B_T50A exhibits 170 Ω dynamic impedance at IZ = 2 mA and 900 Ω knee impedance at IZK = 250 μA, with leakage current limited to 0.1 mA at VR = 36 V - confirming suitability for low-drift biasing and feedback networks where stability under varying load and temperature is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 44.65 V min / 47 V typ / 49.35 V max at IZ = 2 mA - defines regulated output range under standard test conditions |
| Power Dissipation (PD) | 500 mW @ TL ≤ 75°C - sets maximum continuous power handling before thermal derating begins |
| Derating Factor | 4.0 mW/°C above 75°C - determines safe operating margin in elevated ambient environments |
| Zener Impedance (ZZ) | 170 Ω @ IZ = 2 mA - indicates voltage regulation stiffness under nominal bias |
| Leakage Current (IR) | 0.1 mA @ VR = 36 V - quantifies reverse conduction error below breakdown threshold |
| Max Zener Current (IZM) | 170 mA - derived from PD and VZ, defines absolute peak reverse current limit |
| Operating Temp Range | –65°C to +200°C - enables use in industrial, automotive under-hood, and aerospace environments |
Pinout & Package
DO-35 glass axial-leaded package with cathode band marking; leads are unassigned (two-terminal device); no internal connections beyond anode and cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node in shunt regulator | Connected to circuit ground or lower-potential rail; carries forward current up to 200 mA (VF ≤ 1.2 V) |
| Cathode | Zener breakdown terminal / Regulated output node | Connected to input supply via series resistor; maintains stable 47 V reference relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables predictable regulation without post-production trimming in cost-sensitive applications |
| DO-35 glass package | Provides hermetic sealing and thermal stability for long-term voltage reference accuracy |
| Low leakage (0.1 mA @ 36 V) | Minimizes error current in high-impedance feedback paths and battery-powered systems |
| 170 Ω dynamic impedance | Ensures <1% output deviation across typical load current variations in shunt regulators |
| 200°C max junction temperature | Supports operation in high-temperature enclosures without derating penalties beyond 75°C lead temp |
Applications
| Industrial Sensor Signal Conditioning | Programmable Power Supply Reference |
|---|---|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure transducers in factory automation PLC modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 47 V bias to Wheatstone bridge, compensating for supply ripple and drift. Use Value: Maintains bridge output linearity within ±0.2% over –40°C to +85°C ambient due to low tempco and stable ZZ. | Use Scenario: Setting precise output voltage in digitally adjustable lab-grade DC power supplies using DAC-controlled feedback dividers. IC Role / Device Role / Timing Role: High-stability reference node in op-amp error amplifier feedback loop, replacing less accurate TL431-based solutions. Use Value: Reduces output voltage drift to <10 ppm/°C by anchoring divider ratio to a thermally robust 47 V source. |
| Automotive ECU Voltage Monitor | Legacy Equipment Overvoltage Clamp |
Use Scenario: Detecting battery overvoltage events (>45 V) in 24 V commercial vehicle engine control units during alternator load dump. IC Role / Device Role / Timing Role: Zener-clamped input protection stage limiting microcontroller ADC input to safe range. Use Value: Clamps transient spikes within 100 ns while surviving 170 mA surge current per ISO 7637-2 Pulse 5a requirements. | Use Scenario: Protecting vintage telecom line interface cards from accidental 48 V DC feed faults in central office equipment. IC Role / Device Role / Timing Role: Primary shunt clamp absorbing sustained overvoltage until upstream fuse clears. Use Value: Handles continuous 47 V × 10 mA = 470 mW dissipation without degradation, matching legacy board thermal design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6016RLG | Same 47 V rating, ±5%, DO-35 package, but manufactured by ON Semiconductor; ZZ = 180 Ω @ 2 mA vs. 170 Ω | Identical functional role; minor ZZ difference yields ~0.5% higher regulation error under 10 mA load variation | Select when sourcing from ON Semiconductor distribution channels or requiring alternate qualification history |
| BZX55-C47 | 47 V ±5%, DO-35, but rated for 500 mW at TA = 25°C only; no specified derating curve; ZZ = 200 Ω @ 5 mA | Less suitable for high-temp environments due to missing thermal derating data; requires larger series resistor for same IZ | Acceptable for room-temperature consumer applications where thermal margin is not critical |
Compared with 1N6016RLG and BZX55-C47, the 1N6016B_T50A offers superior thermal derating specification (4.0 mW/°C) and lower dynamic impedance (170 Ω), making it preferred for industrial and automotive designs requiring stable regulation across wide temperature ranges.
Availability
1N6016B_T50A is available at Aetrix Electronics and suitable for industrial sensor conditioning, programmable power supply references, and automotive voltage monitoring requiring stable component supply and long-term parametric consistency.
Supply support for 1N6016B_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, analog, and discrete components before its acquisition by ON Semiconductor in 2016; known for rugged, high-reliability devices.
The 1N6016B_T50A belongs to Fairchild's legacy 1N5985B–1N6025B Zener diode family, designed specifically for precision voltage regulation in industrial control, instrumentation, and power supply feedback applications.
FAQ
What is the nominal Zener voltage of the 1N6016B_T50A?
The 1N6016B_T50A has a nominal Zener voltage of 47 V, with a guaranteed range of 44.65 V (min) to 49.35 V (max) at a test current of 2 mA and ±5% tolerance. This value is measured under thermal equilibrium at lead temperature of 30°C ±1°C with 3/8" lead length, as defined in the Fairchild datasheet Rev. C2.
Does the 1N6016B_T50A have a specified forward voltage?
Yes, the 1N6016B_T50A specifies a maximum forward voltage (VF) of 1.2 V at forward current (IF) = 200 mA. This parameter is relevant for applications where the device may conduct in forward bias, such as input protection clamping or dual-direction transient suppression circuits.
What is the maximum Zener current (IZM) for the 1N6016B_T50A?
The maximum Zener current (IZM) for the 1N6016B_T50A is 170 mA. This value is calculated based on the 500 mW power rating and the minimum Zener voltage (44.65 V), ensuring safe operation without exceeding thermal limits under worst-case voltage and current conditions.
Is the 1N6016B_T50A suitable for high-temperature environments?
Yes, the 1N6016B_T50A supports an operating junction temperature range of –65°C to +200°C and is rated for 500 mW dissipation up to 75°C lead temperature, with linear derating of 4.0 mW/°C beyond that point - making it suitable for under-hood automotive, industrial motor drives, and downhole equipment where ambient temperatures exceed 100°C.
How is the cathode identified on the 1N6016B_T50A package?
The cathode of the 1N6016B_T50A is marked by a distinct color band on the DO-35 glass body, consistent with industry-standard polarity identification. The band aligns with the cathode terminal, which serves as the regulated output node in shunt regulator configurations and must be connected to the higher-potential side of the circuit.
1N6016B_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):
- 47 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 36 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
1N6016B_T50A FAQ
1.How can I place an order for 1N6016B_T50A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6016B_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 1N6016B_T50A reliable?
The price and inventory of 1N6016B_T50A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6016B_T50A is usually 5 days.
3.What payment methods are accepted for 1N6016B_T50A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6016B_T50A transactions.
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4.How is shipping managed for 1N6016B_T50A?
1N6016B_T50A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6016B_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 1N6016B_T50A?
For technical support, including 1N6016B_T50A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6016B_T50A requirements.
6.How does Aetrix verify that 1N6016B_T50A is sourced from the original manufacturer or authorized distributors?
All 1N6016B_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 1N6016B_T50A meets industry standards.
7.What is the process for return or replacement of 1N6016B_T50A?
All 1N6016B_T50A units undergo pre-shipment inspection (PSI). If there is an issue with 1N6016B_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 1N6016B_T50A part is unused and in its original packaging.
Return procedure for 1N6016B_T50A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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