onsemi 1N6000B
- Part No.:
- 1N6000B
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N6000B.pdf
- Description:
- DIODE ZENER 10V 500MW DO35
- Quantity:
- Payment:

- Shipping:

Inventory:2,003
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Product details
Overview
1N6000B from Fairchild Semiconductor is a 5% tolerance, 9.5–10.5 V Zener diode in DO-35 glass package, rated for 500 mW power dissipation at TL ≤ 75°C with 4.0 mW/°C derating, designed for precision voltage regulation and reference applications in industrial power supplies and analog signal conditioning circuits.
For engineers reviewing the 1N6000B datasheet, pinout, applications, or equivalent options, key selection criteria include its nominal Zener voltage (10 V), test current (5 mA), dynamic impedance (15 Ω @ IZ), leakage current (0.1 mA @ VR = 8 V), and maximum Zener current (50 mA) - all critical for stable shunt regulation under varying load and temperature conditions.
Technical Context
The 1N6000B operates as a silicon planar Zener diode with controlled avalanche breakdown at reverse bias, delivering stable voltage reference across its specified operating temperature range of –65°C to +200°C. Its Zener impedance of 15 Ω at 5 mA ensures low output variation under small-signal load changes.
It features a cathode band marking on DO-35 glass case, requires 3/8″ lead length for thermal rating compliance, and exhibits forward voltage ≤1.2 V at 200 mA - enabling bidirectional verification during functional testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.5–10.5 V @ IZ = 5 mA - defines regulated output voltage window for reference design margin |
| Power Dissipation (PD) | 500 mW @ TL ≤ 75°C - sets maximum continuous shunt power handling before thermal derating |
| Zener Impedance (ZZ) | 15 Ω @ IZ = 5 mA - determines AC ripple rejection and regulation sensitivity to current variation |
| Leakage Current (IR) | 0.1 mA @ VR = 8 V - specifies off-state conduction limiting error in high-impedance bias networks |
| Max Zener Current (IZM) | 50 mA - establishes absolute peak reverse current limit before thermal runaway risk |
| Operating Temp Range | –65°C to +200°C - enables deployment in automotive under-hood, industrial motor control, and aerospace environments |
Pinout & Package
DO-35 glass axial package with cathode indicated by color band; two-terminal device requiring no orientation-specific PCB layout beyond standard axial diode placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node in shunt regulator configuration |
| Cathode | Zener breakdown terminal / regulated voltage output | Connected to input supply via series resistor; delivers stable 10 V reference to load |
Key Features
| Feature | Design Value |
|---|---|
| 5% Zener voltage tolerance | Ensures predictable regulation window without post-manufacture trimming in cost-sensitive designs |
| DO-35 glass package | Provides hermetic sealing and high-temperature reliability up to +200°C junction operation |
| Low Zener impedance (15 Ω) | Minimizes output voltage deviation under ±1 mA load current shifts in precision references |
| Controlled leakage (0.1 mA @ 8 V) | Reduces quiescent error in high-resistance voltage divider biasing networks |
| 1.2 V forward voltage max | Allows functional continuity check using standard multimeter diode test mode |
Applications
| Industrial Power Supply Regulation | Automotive Sensor Reference |
|---|---|
Use Scenario: Stabilizing feedback node in isolated DC-DC converter secondary-side error amplifier. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 10 V setpoint to optocoupler input. Use Value: Maintains ±1% output regulation over line/load transients due to tight VZ tolerance and low ZZ. |
Use Scenario: Biasing bridge sensor in engine coolant temperature module exposed to under-hood thermal cycling. IC Role / Device Role / Timing Role: Precision voltage reference for ratiometric ADC excitation in harsh environment. Use Value: Delivers stable 10 V reference across –40°C to +150°C ambient thanks to wide TJ range and low TC drift. |
| Test Equipment Calibration | Programmable Logic Controller Input Protection |
Use Scenario: Generating traceable 10 V reference in handheld multimeter internal calibration circuitry. IC Role / Device Role / Timing Role: Primary voltage standard against which DMM ADC gain is adjusted. Use Value: Enables factory calibration accuracy to ±0.5% using only 5% tolerance part due to stable long-term VZ drift. |
Use Scenario: Clamping transient overvoltage on 24 V digital input channel of PLC I/O module. IC Role / Device Role / Timing Role: Overvoltage protection element limiting input to safe logic threshold. Use Value: Absorbs 500 mW surge energy without failure while holding clamped voltage at ≤10.5 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4740A | 10 V nominal, 5% tolerance, 1 W power rating, DO-41 package | Higher power handling supports higher current shunt regulation but requires larger PCB footprint | Select when >500 mW continuous dissipation or improved thermal mass is required |
| BZX55C10 | 10 V nominal, 5% tolerance, 500 mW, DO-35 package, tighter ZZ (10 Ω) | Lower dynamic impedance improves ripple rejection but has narrower IZM (38 mA) | Select when superior AC regulation is prioritized over peak current capability |
Compared with 1N6000B, the 1N4740A offers double the power rating in a larger DO-41 package, while BZX55C10 provides lower Zener impedance in identical DO-35 form factor but reduced maximum current - guiding selection based on thermal budget versus dynamic regulation performance.
Availability
1N6000B is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor modules, and test equipment calibration requiring stable component supply with full traceability and lifecycle management.
Supply support for 1N6000B 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 1N6000B belongs to Fairchild's legacy 1N5985B–1N6025B Zener diode family, engineered for high-reliability voltage reference and regulation in industrial, automotive, and instrumentation applications.
FAQ
What is the nominal Zener voltage of the 1N6000B?
The 1N6000B has a nominal Zener voltage of 10 V, with a guaranteed range of 9.5 V to 10.5 V at 5 mA test current and 25°C ambient. This value is defined by the manufacturer's electrical characteristics table and applies directly to the 1N6000B part number under standard test conditions. The 1N6000B maintains this specification across its full operating temperature range when used within power derating limits.
What package type does the 1N6000B use?
The 1N6000B uses the DO-35 glass axial package, identified by a cathode band marking and standardized 3/8″ lead length requirement for thermal rating compliance. This package is hermetically sealed and rated for operation up to +200°C junction temperature. The 1N6000B's DO-35 form factor ensures compatibility with legacy through-hole assembly processes and high-temperature reflow profiles.
What is the maximum Zener current (IZM) for the 1N6000B?
The maximum Zener current for the 1N6000B is 50 mA, derived from its 500 mW power rating and typical Zener voltage of 10 V (P = V × I). This value is confirmed in the "Electrical Characteristics" table under the IZM column for the 1N6000B row. Exceeding 50 mA risks thermal instability, making it essential to size the series current-limiting resistor accordingly in 1N6000B-based regulator designs.
Does the 1N6000B have a specified forward voltage?
Yes, the 1N6000B has a maximum forward voltage of 1.2 V at 200 mA forward current, as stated in the "Absolute Maximum Ratings" section of the datasheet. This parameter allows functional verification using standard multimeter diode-test mode and confirms silicon junction integrity. The 1N6000B's forward voltage remains consistent with other devices in the 1N5985B–1N6025B family, supporting interoperability in bidirectional test setups.
What is the Zener impedance of the 1N6000B and why does it matter?
The 1N6000B has a Zener impedance (ZZ) of 15 Ω measured at 5 mA test current, indicating its dynamic resistance in the breakdown region. Lower ZZ values improve regulation stability against load current variations - critical in precision reference applications. This 15 Ω value is explicitly listed for the 1N6000B in the Electrical Characteristics table and directly impacts output voltage ripple suppression in 1N6000B-shunted circuits.
1N6000B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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
1N6000B FAQ
1.How can I place an order for 1N6000B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6000B 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 1N6000B reliable?
The price and inventory of 1N6000B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6000B is usually 5 days.
3.What payment methods are accepted for 1N6000B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6000B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6000B?
1N6000B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6000B 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 1N6000B?
For technical support, including 1N6000B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6000B requirements.
6.How does Aetrix verify that 1N6000B is sourced from the original manufacturer or authorized distributors?
All 1N6000B 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 1N6000B meets industry standards.
7.What is the process for return or replacement of 1N6000B?
All 1N6000B units undergo pre-shipment inspection (PSI). If there is an issue with 1N6000B, 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 1N6000B part is unused and in its original packaging.
Return procedure for 1N6000B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6000B Tags

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