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onsemi 1N6015B
- Part No.:
- 1N6015B
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N6015B.pdf
- Description:
- DIODE ZENER 43V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:2,545
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Product details
Overview
1N6015B from Fairchild Semiconductor is a 43 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 150 Ω zener impedance at IZ - used for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the 1N6015B datasheet, pinout, applications, or equivalent options, key selection criteria include its 43 V nominal zener voltage, tight 5% tolerance, DO-35 axial leaded package, low leakage (≤0.1 mA at 33 V), and thermal stability across –65°C to +200°C operating range.
Technical Context
The 1N6015B operates as a silicon planar Zener diode with controlled avalanche breakdown at 43 V, specified under thermal equilibrium at 30°C ±1°C lead temperature and 3/8″ lead length. Its zener impedance of 150 Ω at 2 mA ensures stable regulation under light-load conditions.
It exhibits 0.1 mA maximum leakage current at 33 V reverse bias and supports up to 130 mA maximum zener current (IZM), limited by its 500 mW power rating and thermal derating curve above 75°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 43 V nominal, min 40.85 V / max 45.15 V at 2 mA - defines precise clamping threshold for voltage reference or protection circuits |
| Power Dissipation (PD) | 500 mW @ TL ≤ 75°C - sets maximum continuous power handling before thermal derating begins |
| Zener Impedance (ZZ) | 150 Ω @ IZ = 2 mA - indicates regulation stiffness; lower values improve load regulation accuracy |
| Leakage Current (IR) | ≤0.1 mA @ VR = 33 V - ensures minimal standby current in high-impedance bias networks |
| Operating Temperature | –65°C to +200°C - enables use in automotive under-hood, industrial, and aerospace environments |
| Tolerance | ±5% - provides predictable voltage margin for design validation without binning |
Pinout & Package
DO-35 glass axial-leaded package with cathode indicated by color band; leads are non-polarized except for cathode marking; standard 3/8″ lead length used for thermal rating compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower potential side in reverse-bias regulation; carries forward current up to 200 mA (VF ≤ 1.2 V) |
| Cathode | Zener breakdown terminal | Marked with color band; connected to higher potential side during regulation; defines 43 V reference node |
Key Features
| Feature | Design Value |
|---|---|
| Stable Zener voltage | 43 V ±5% at 2 mA - enables accurate voltage setting without external trimming in feedback networks |
| Low dynamic impedance | 150 Ω at IZ = 2 mA - minimizes output voltage shift under varying load currents |
| High-temperature operation | Rated to +200°C junction temperature - supports reliability in sealed enclosures or high-ambient designs |
| Low leakage performance | ≤0.1 mA at 33 V reverse bias - preserves battery life and signal integrity in high-Z sensing paths |
Applications
| Reference Voltage Source | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 43 V reference for ADC biasing or op-amp comparator thresholds in sensor signal conditioning. IC Role / Device Role / Timing Role: Passive voltage reference element establishing fixed DC potential independent of supply variation. Use Value: Delivers ±5% accuracy and <150 Ω impedance to maintain reference stability within 0.5% over 10–100 µA load current range. |
Use Scenario: Protecting input stages of instrumentation amplifiers from transient surges exceeding 43 V. IC Role / Device Role / Timing Role: Shunt clamping device diverting excess current when reverse voltage exceeds 43 V. Use Value: Limits peak voltage to ≤45.15 V (max VZ) with fast response and no active control required. |
| Power Supply Feedback | LED Current Regulation |
Use Scenario: Setting output voltage in discrete linear regulator feedback loops where IC-based references are unavailable. IC Role / Device Role / Timing Role: Precision voltage divider node defining regulated output setpoint via resistive divider. Use Value: Enables 43 V output regulation with <1% line/load regulation error due to low ZZ and tight tolerance. |
Use Scenario: Stabilizing current through high-voltage LED strings in signage or backlighting applications. IC Role / Device Role / Timing Role: Constant-voltage shunt element maintaining fixed voltage drop across series current-setting resistor. Use Value: Ensures ±5% LED current accuracy despite input voltage drift from 45–60 V supply rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4750A (ON Semiconductor) | 47 V nominal, ±5%, 1 W rating, DO-41 package - higher power but 4 V higher zener voltage | Requires circuit redesign for 47 V vs. 43 V reference; suitable only if voltage margin allows | Select only if higher power handling (1 W) and 47 V threshold are acceptable; not drop-in |
| BZX55-C43 (Vishay) | 43 V nominal, ±5%, 500 mW, DO-35 - identical electrical specs and package; tighter ZZK spec (≤1000 Ω) | Direct functional replacement with same footprint and thermal profile; validated for same PCB layouts | Preferred alternative when sourcing flexibility is needed; matches 1N6015B in all critical parameters |
Compared with 1N6015B, the BZX55-C43 offers identical VZ, tolerance, PD, and DO-35 packaging with verified 1000 Ω max knee impedance, while the 1N4750A shifts the regulation point to 47 V and requires layout adaptation due to DO-41 size.
Availability
1N6015B is available at Aetrix Electronics and suitable for precision voltage reference, overvoltage protection, and power supply feedback applications requiring stable component supply and long-term obsolescence management.
Supply support for 1N6015B 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.
The 1N6015B belongs to Fairchild's legacy 1N5985B–1N6025B Zener diode family, designed for general-purpose voltage regulation and protection in cost-sensitive, thermally demanding industrial and automotive subsystems.
FAQ
What is the nominal zener voltage and tolerance of the 1N6015B?
The 1N6015B has a nominal zener voltage of 43 V with a tolerance of ±5%, meaning its actual breakdown voltage falls between 40.85 V and 45.15 V when tested at 2 mA. This specification is measured under thermal equilibrium at 30°C ±1°C lead temperature with 3/8″ lead length, as defined in the Fairchild datasheet Rev. C2.
What is the maximum power dissipation and thermal derating behavior of the 1N6015B?
The 1N6015B 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 means at TL = 100°C, its usable power drops to 400 mW. The derating curve ensures safe operation without exceeding the 200°C maximum junction temperature.
What is the zener impedance and leakage current specification for the 1N6015B?
The 1N6015B has a zener impedance (ZZ) of 150 Ω measured at 2 mA test current, and a maximum leakage current (IR) of 0.1 mA at 33 V reverse bias. These values confirm its suitability for low-noise reference and high-impedance clamp applications where minimal voltage droop and standby current are critical.
Which package type does the 1N6015B use, and how is polarity marked?
The 1N6015B uses a DO-35 glass axial-leaded package. Polarity is marked by a cathode band - a visible color band near one end of the glass body - identifying the cathode terminal. The anode is the unmarked lead, and the device must be installed with cathode toward the higher potential side for proper Zener operation.
Can the 1N6015B be used in high-temperature environments such as automotive under-hood applications?
Yes, the 1N6015B is rated for an operating and storage temperature range of –65°C to +200°C, making it suitable for under-hood automotive use, industrial controls, and other high-ambient environments. Its glass DO-35 construction and silicon die ensure stable Zener characteristics across this full range when mounted per thermal guidelines.
1N6015B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 43 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 33 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
1N6015B FAQ
1.How can I place an order for 1N6015B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6015B 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 1N6015B reliable?
The price and inventory of 1N6015B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6015B is usually 5 days.
3.What payment methods are accepted for 1N6015B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6015B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6015B?
1N6015B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6015B 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 1N6015B?
For technical support, including 1N6015B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6015B requirements.
6.How does Aetrix verify that 1N6015B is sourced from the original manufacturer or authorized distributors?
All 1N6015B 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 1N6015B meets industry standards.
7.What is the process for return or replacement of 1N6015B?
All 1N6015B units undergo pre-shipment inspection (PSI). If there is an issue with 1N6015B, 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 1N6015B part is unused and in its original packaging.
Return procedure for 1N6015B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6015B Tags
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BZT52C5V6T-7
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MM5Z5V1ST1G
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