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onsemi 1N6006B
- Part No.:
- 1N6006B
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N6006B.pdf
- Description:
- DIODE ZENER 18V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:4,019
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Product details
Overview
1N6006B from Fairchild Semiconductor is a 5% tolerance, 18 V nominal Zener diode in DO-35 glass package, rated for 500 mW power dissipation at TL ≤ 75°C with 4.0 mW/°C derating, 42 mA maximum Zener current (IZM), and 600 Ω dynamic impedance (ZZ) at 5 mA test current - used for precision voltage regulation in low-power analog reference and overvoltage clamp circuits.
For engineers reviewing the 1N6006B datasheet, pinout, applications, or equivalent options, this page delivers verified Zener voltage range (17.1–18.9 V), thermal limits (−65 to +200°C), leakage current (≤0.1 mA at 14 V), forward voltage (≤1.2 V @ 200 mA), and DO-35 mechanical compatibility for legacy through-hole designs.
Technical Context
The 1N6006B operates as a two-terminal voltage reference device relying on controlled reverse-biased avalanche breakdown. Its Zener voltage is specified at 5 mA test current with ±5% tolerance and measured under thermal equilibrium at lead temperature of 30°C ±1°C with 3/8″ lead length.
It exhibits 600 Ω dynamic impedance at IZ = 5 mA and 600 Ω knee impedance at IZK = 250 μA, with leakage current capped at 0.1 mA at VR = 14 V. Power handling follows a linear derating curve of 4.0 mW/°C above 75°C ambient lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 17.1 V min / 18.9 V max @ IZ = 5 mA - defines stable regulation window for feedback or clamping |
| Power Dissipation (PD) | 500 mW @ TL ≤ 75°C - sets maximum continuous DC power in standard leaded mounting |
| Zener Impedance (ZZ) | 600 Ω @ IZ = 5 mA - indicates voltage stability under small-signal AC load variation |
| Max Zener Current (IZM) | 42 mA - derived from PD and VZ; limits peak surge or steady-state current capability |
| Leakage Current (IR) | ≤0.1 mA @ VR = 14 V - ensures minimal error current in high-impedance bias networks |
| Operating Temp Range | −65°C to +200°C - supports industrial and under-hood automotive environments |
| Forward Voltage (VF) | ≤1.2 V @ IF = 200 mA - enables use as low-drop rectifier or ESD protection element |
Pinout & Package
DO-35 glass axial package with cathode indicated by color band; two-terminal device requiring no external biasing - anode and cathode are non-reversible terminals defined by polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-bias reference terminal | Connected to lower potential node in Zener regulation configuration |
| Cathode | Reverse-bias reference terminal | Marked with color band; connected to higher potential node and output reference point |
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 proven reliability for long-term operation in humid or corrosive environments |
| 600 Ω Zener impedance at 5 mA | Delivers stable reference voltage under moderate load transients in analog sensor interfaces |
| Leakage current ≤0.1 mA at 14 V | Minimizes quiescent error in high-resistance voltage divider networks and battery-powered systems |
| −65°C to +200°C operating range | Supports deployment in extended-temperature industrial controls and automotive under-hood modules |
Applications
| Voltage Reference for Op-Amp Biasing | Overvoltage Clamp in Signal Conditioning |
|---|---|
Use Scenario: Providing stable 18 V reference to bias op-amp input stages in precision instrumentation amplifiers. IC Role / Device Role / Timing Role: Two-terminal passive voltage reference establishing fixed DC offset independent of supply variation. Use Value: Maintains amplifier common-mode range accuracy within ±0.5% due to tight 5% VZ tolerance and low ZZ. |
Use Scenario: Clamping analog sensor outputs to prevent ADC input saturation during transient overvoltage events. IC Role / Device Role / Timing Role: Reverse-biased shunt limiter diverting excess current when signal exceeds 18.9 V. Use Value: Limits voltage excursion to ≤18.9 V with <0.1 mA leakage below clamp threshold, preserving signal integrity. |
| Low-Power Microcontroller Reset Circuit | Legacy Power Supply Feedback Divider |
Use Scenario: Generating clean reset threshold for 18 V–rated microcontrollers in battery-backed systems. IC Role / Device Role / Timing Role: Zener-based threshold detector enabling POR (power-on reset) assertion at regulated voltage level. Use Value: Ensures deterministic reset release at ≥17.1 V with thermal stability across −40°C to +85°C ambient. |
Use Scenario: Setting feedback node voltage in discrete 78xx-style linear regulator designs using external pass transistor. IC Role / Device Role / Timing Role: Precision shunt reference defining output voltage via resistor divider ratio. Use Value: Delivers 18 V ±0.9 V regulation with minimal drift over time, supporting legacy board redesigns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5245B (ON Semiconductor) | 18 V nominal, ±5%, 500 mW, DO-35, but IZM = 40 mA and ZZ = 23 Ω @ 5 mA | Lower impedance improves regulation under dynamic loads; tighter thermal coefficient not specified | Select when lower ZZ is critical and layout allows same DO-35 footprint |
| BZX55-C18 (Vishay) | 18 V nominal, ±5%, 500 mW, DO-35, IZM = 42 mA, ZZ = 50 Ω @ 5 mA, IR = 0.1 μA @ 14 V | Superior leakage performance and lower ZZ, but different top-marking and qualification history | Prefer for ultra-low-leakage bias networks where sub-μA IR is required |
Compared with 1N6006B, the 1N5245B offers significantly lower Zener impedance for improved line/load regulation, while BZX55-C18 provides orders-of-magnitude lower leakage - both retain DO-35 compatibility but differ in impedance-leakage trade-offs critical for precision analog design.
Availability
1N6006B is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, and reset circuit applications requiring stable component supply, long-lifecycle support, and DO-35 package continuity.
Supply support for 1N6006B 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 1N6006B belongs to Fairchild's legacy 1N5985B–1N6025B Zener diode family, designed for general-purpose voltage regulation and clamping in industrial, consumer, and automotive auxiliary circuits.
FAQ
What is the exact Zener voltage range for 1N6006B at 25°C?
The 1N6006B has a guaranteed Zener voltage range of 17.1 V (minimum) to 18.9 V (maximum) when tested at 5 mA current and 25°C ambient, per Fairchild's Rev. C2 datasheet. This ±5% tolerance is measured under thermal equilibrium conditions with 3/8″ lead length and lead temperature held at 30°C ±1°C. The 1N6006B does not specify a typical value outside this min/max band.
Can 1N6006B be used in surface-mount designs?
No - the 1N6006B is packaged exclusively in the DO-35 glass axial leaded case and is not available in SMD variants. It requires through-hole mounting with 3/8″ lead length for rated power dissipation. For SMT equivalents, consider SOD-123 or SOD-323 packaged Zeners like BZT52-B18 or MMBZ5245B, which differ electrically and mechanically from the 1N6006B.
What is the maximum allowable junction temperature for 1N6006B?
The 1N6006B specifies an operating junction temperature range of −65°C to +200°C, matching its storage temperature rating. While absolute maximum junction temperature is not separately listed, sustained operation above +200°C risks irreversible degradation. Derating begins at lead temperature >75°C, not junction temperature, per the datasheet's thermal specification methodology.
Does 1N6006B have a specified Zener voltage temperature coefficient?
No - the Fairchild 1N5985B–1N6025B datasheet does not list a temperature coefficient (TC) for the 1N6006B. Unlike higher-voltage Zeners (>6 V) that exhibit positive TC or low-voltage types (<6 V) with negative TC, the 18 V 1N6006B falls in a transition region where TC is not characterized or guaranteed in this family's documentation.
How does 1N6006B compare to 1N4746A in terms of electrical performance?
The 1N6006B (18 V, 500 mW, DO-35) and 1N4746A (18 V, 1 W, DO-41) share nominal voltage but differ critically: 1N4746A handles double the power and uses larger DO-41 packaging, while 1N6006B offers tighter thermal resistance control in leaded mounting but lower IZM (42 mA vs. 83 mA). They are not interchangeable without layout and thermal redesign.
1N6006B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 18 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 42 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 14 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
1N6006B FAQ
1.How can I place an order for 1N6006B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6006B 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 1N6006B reliable?
The price and inventory of 1N6006B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6006B is usually 5 days.
3.What payment methods are accepted for 1N6006B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6006B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6006B?
1N6006B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6006B 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 1N6006B?
For technical support, including 1N6006B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6006B requirements.
6.How does Aetrix verify that 1N6006B is sourced from the original manufacturer or authorized distributors?
All 1N6006B 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 1N6006B meets industry standards.
7.What is the process for return or replacement of 1N6006B?
All 1N6006B units undergo pre-shipment inspection (PSI). If there is an issue with 1N6006B, 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 1N6006B part is unused and in its original packaging.
Return procedure for 1N6006B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6006B Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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