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onsemi 1N6005B_T50R
- Part No.:
- 1N6005B_T50R
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N6005B_T50R.pdf
- Description:
- DIODE ZENER 16V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:7,115
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Product details
Overview
1N6005B_T50R from Fairchild Semiconductor is a 15.2 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, 36 mA maximum Zener current (IZM), and 15 Ω typical Zener impedance (ZZ) at 5 mA test current - used for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the 1N6005B_T50R datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance, thermal derating behavior, leakage current at 12 V reverse bias (0.1 mA), and DO-35 mechanical compatibility in space-constrained PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference with fixed breakdown voltage defined by its doped PN junction. Its Zener voltage is specified at thermal equilibrium with 3/8″ lead length and TL = 30°C ±1°C, ensuring stable regulation under controlled thermal conditions.
It exhibits 15 Ω typical dynamic impedance at 5 mA test current and 600 Ω knee impedance at 250 μA, supporting stable regulation across load variations while maintaining low leakage (0.1 mA at VR = 12 V) and forward voltage ≤1.2 V at 200 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.2 V min / 16.8 V max at 5 mA - defines regulated output range for reference design |
| Power Dissipation (PD) | 500 mW @ TL ≤ 75°C - sets maximum continuous power handling before thermal derating |
| Zener Impedance (ZZ) | 15 Ω typical @ IZ = 5 mA - determines output voltage stability under varying load current |
| Max Zener Current (IZM) | 36 mA - limits peak current to avoid thermal runaway at full rated power |
| Leakage Current (IR) | 0.1 mA @ VR = 12 V - ensures minimal parasitic current in standby or high-impedance bias networks |
| Operating Temp Range | –65°C to +200°C - supports operation in extended industrial and automotive under-hood environments |
Pinout & Package
DO-35 glass axial package with cathode indicated by color band; two-terminal device with no internal connections beyond anode and cathode leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener configuration |
| Cathode | Zener breakdown terminal | Marked with color band; connected to higher-potential node to enable voltage clamping |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables predictable regulation without post-production trimming in cost-sensitive designs |
| DO-35 glass package | Provides hermetic sealing and stable long-term parameter drift for reliability-critical applications |
| Low knee impedance (600 Ω @ 250 μA) | Ensures usable regulation even at microamp-level bias currents in ultra-low-power circuits |
| 1.2 V forward voltage max | Allows safe use as bidirectional clamp when forward conduction must be considered |
Applications
| Voltage Reference for ADC/DAC | Overvoltage Clamp in Sensor Interface |
|---|---|
Use Scenario: Provides stable 15.2 V reference for 12-bit SAR ADC biasing in industrial data acquisition modules. IC Role / Device Role / Timing Role: Two-terminal passive voltage reference establishing precise analog input scaling. Use Value: Maintains <±0.5 LSB error contribution over –40°C to +85°C due to tight VZ tolerance and low ZZ. |
Use Scenario: Clamps 16 V supply rail transients on MEMS pressure sensor front-end to protect amplifier inputs. IC Role / Device Role / Timing Role: Passive overvoltage protection element limiting rail excursion during ESD or load-dump events. Use Value: Limits transient peak to ≤16.8 V (VZ max) with 36 mA IZM headroom, preventing amplifier saturation or damage. |
| Power Supply Feedback Divider | Current Source Biasing |
Use Scenario: Sets feedback voltage in isolated flyback converter using optocoupler-coupled secondary-side regulation. IC Role / Device Role / Timing Role: Precision shunt reference defining output voltage setpoint via resistor divider network. Use Value: Enables ±1.5% output regulation accuracy across line/load/temperature with minimal temperature coefficient impact. |
Use Scenario: Biases constant-current source for LED driver IC requiring stable 15 V gate drive reference. IC Role / Device Role / Timing Role: Stable voltage node enabling accurate current mirror ratio setting in discrete bias networks. Use Value: Delivers <0.2% current variation over 0–70°C due to matched thermal characteristics with adjacent transistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4744A | 14 V nominal, ±5%, DO-41 package, 1 W rating, 20 Ω ZZ @ 25 mA | Higher power rating but larger footprint; requires layout revision for DO-41 vs DO-35 | Select when >500 mW dissipation or higher IZM (91 mA) is required; not drop-in compatible |
| BZX55-C15 | 15 V nominal, ±5%, DO-35 package, 500 mW, 20 Ω ZZ @ 5 mA, 100 nA IR @ 12 V | Lower leakage (100 nA vs 0.1 mA) but same package and thermal profile | Prefer for ultra-low-power bias networks where sub-μA leakage is critical; identical board fit |
Compared with 1N6005B_T50R, 1N4744A offers higher power handling but requires PCB rework, while BZX55-C15 delivers 1000× lower leakage in the same DO-35 footprint - making it ideal for battery-powered sensor nodes where standby current dominates lifetime.
Availability
1N6005B_T50R is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, power supply feedback, and current source biasing applications requiring stable component supply and consistent DO-35 mechanical form factor.
Supply support for 1N6005B_T50R 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; legacy products maintain full specification compliance and traceability.
The 1N6005B_T50R belongs to Fairchild's legacy 1N5985B–1N6025B Zener diode family, designed for general-purpose precision voltage regulation in industrial, computing, and communications equipment where DO-35 reliability and ±5% tolerance meet cost-performance targets.
FAQ
What is the Zener voltage tolerance of the 1N6005B_T50R?
The 1N6005B_T50R has a Zener voltage tolerance of ±5%, with a specified range of 15.2 V (min) to 16.8 V (max) at 5 mA test current and thermal equilibrium conditions. This tolerance is measured per Fairchild's Rev. C2 datasheet and applies directly to the 1N6005B_T50R variant. The 1N6005B_T50R maintains this tolerance across its qualified operating temperature range.
What is the maximum power dissipation for the 1N6005B_T50R at 100°C ambient?
At 100°C ambient, the 1N6005B_T50R must be derated from its 500 mW rating at TL ≤ 75°C. With a derating factor of 4.0 mW/°C above 75°C, the allowable power drops to 400 mW (500 mW − [25°C × 4.0 mW/°C]). This calculation assumes standard 3/8″ lead length and proper PCB thermal relief. The 1N6005B_T50R datasheet specifies this linear derating curve explicitly.
Does the 1N6005B_T50R have a specified forward voltage?
Yes - the 1N6005B_T50R has a maximum forward voltage (VF) of 1.2 V at 200 mA forward current, as stated in the Absolute Maximum Ratings table of the Fairchild datasheet. This value is relevant when the device is used in bidirectional clamping or reverse-polarity protection circuits. The 1N6005B_T50R's VF specification ensures predictable conduction behavior outside Zener breakdown.
What is the leakage current of the 1N6005B_T50R at 12 V reverse bias?
The 1N6005B_T50R exhibits a maximum leakage current (IR) of 0.1 mA at VR = 12 V, per the Electrical Characteristics table. This value is confirmed for TA = 25°C and reflects worst-case DC leakage in voltage-reference or high-impedance bias applications. The 1N6005B_T50R's leakage remains stable across its full operating temperature range.
Is the 1N6005B_T50R available in tape-and-reel packaging for automated assembly?
Yes - the 1N6005B_T50R is supplied in tape-and-reel format compliant with EIA-481 standards, supporting pick-and-place assembly for high-volume manufacturing. Reel quantities and packaging dimensions align with DO-35 axial device conventions. Aetrix Electronics stocks the 1N6005B_T50R in standard industry tape-and-reel configurations for seamless SMT integration.
1N6005B_T50R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 36 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 12 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
1N6005B_T50R FAQ
1.How can I place an order for 1N6005B_T50R through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6005B_T50R 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 1N6005B_T50R reliable?
The price and inventory of 1N6005B_T50R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6005B_T50R is usually 5 days.
3.What payment methods are accepted for 1N6005B_T50R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6005B_T50R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6005B_T50R?
1N6005B_T50R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6005B_T50R 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 1N6005B_T50R?
For technical support, including 1N6005B_T50R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6005B_T50R requirements.
6.How does Aetrix verify that 1N6005B_T50R is sourced from the original manufacturer or authorized distributors?
All 1N6005B_T50R 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 1N6005B_T50R meets industry standards.
7.What is the process for return or replacement of 1N6005B_T50R?
All 1N6005B_T50R units undergo pre-shipment inspection (PSI). If there is an issue with 1N6005B_T50R, 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 1N6005B_T50R part is unused and in its original packaging.
Return procedure for 1N6005B_T50R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6005B_T50R Tags
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