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onsemi 1N6005B
- Part No.:
- 1N6005B
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N6005B.pdf
- Description:
- DIODE ZENER 16V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:7,477
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Product details
Overview
1N6005B 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. It provides precision voltage regulation in low-power analog reference and overvoltage protection circuits.
For engineers reviewing the 1N6005B datasheet, pinout, applications, or equivalent options, this device serves as a stable, temperature-compensated shunt regulator where tight voltage tolerance, low dynamic impedance, and reliable glass-encapsulated construction are required in space-constrained designs.
Technical Context
The 1N6005B operates as a silicon planar Zener diode with sharp reverse breakdown at nominal 15.2 V, measured under thermal equilibrium at lead temperature of 30°C ±1°C with 3/8″ lead length. Its 5% tolerance and 15 Ω typical ZZ @ 5 mA enable stable regulation across moderate load variations.
It features a DO-35 axial glass package with cathode band marking, supports -65°C to +200°C operating and storage range, and exhibits 0.1 mA leakage current (IR) at 12 V reverse bias - confirming low standby loss in high-impedance bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.2 V min / 16.8 V max at 5 mA - defines regulation window for precision reference design |
| Power Dissipation (PD) | 500 mW @ TL ≤ 75°C - sets maximum continuous power handling before thermal derating applies |
| Zener Impedance (ZZ) | 15 Ω typical @ IZ = 5 mA - ensures minimal output voltage shift under load transients |
| Max Zener Current (IZM) | 36 mA - determines absolute peak current before exceeding safe operating area |
| Leakage Current (IR) | 0.1 mA @ VR = 12 V - guarantees negligible quiescent current in standby biasing |
| Operating Temp Range | -65°C to +200°C - enables use in automotive under-hood and industrial high-temp environments |
Pinout & Package
DO-35 glass axial package with cathode indicated by color band; two-terminal device requiring no orientation-specific PCB footprint beyond standard axial lead spacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground node | Connected to circuit common when used in shunt regulation; establishes reference potential |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable 15.2 V relative to anode; must be biased above anode by ≥VZ |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables predictable regulation without post-production trimming in cost-sensitive analog references |
| 15 Ω typical dynamic impedance | Maintains <±10 mV output variation across 1–10 mA load changes in feedback networks |
| DO-35 glass encapsulation | Provides hermetic seal and long-term parameter stability vs. plastic-packaged alternatives |
| 36 mA maximum Zener current | Supports robust transient suppression in 12–24 V supply rails without external current limiting |
Applications
| Industrial Sensor Reference | Low-Power Voltage Clamp |
|---|---|
Use Scenario: Providing stable excitation voltage for resistive bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise 15.2 V bias point for Wheatstone bridge operation. Use Value: Tight 5% tolerance and low 15 Ω impedance minimize sensor gain drift across temperature and supply variance. |
Use Scenario: Clamping microcontroller I/O pins against ESD-induced overvoltage in factory automation HMI panels. IC Role / Device Role / Timing Role: Passive overvoltage protection element diverting transient energy to ground before IC damage threshold. Use Value: Fast 36 mA IZM capability and 0.1 mA leakage ensure clamping action without loading normal signal paths. |
| Linear Power Supply Regulation | Programmable Threshold Detector |
Use Scenario: Setting regulated output voltage in discrete 15 V linear regulators for analog instrumentation. IC Role / Device Role / Timing Role: Zener-based error amplifier reference in series-pass transistor feedback loop. Use Value: Stable -65°C to +200°C operation allows placement near heat-generating pass devices without drift. |
Use Scenario: Defining trip point for comparator-based battery undervoltage detection in portable medical devices. IC Role / Device Role / Timing Role: Precision voltage threshold source feeding non-inverting input of rail-to-rail comparator. Use Value: Low 0.1 mA leakage preserves battery life while 5% tolerance ensures repeatable 14.5–15.9 V detection window. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4744A (ON Semiconductor) | 14 V nominal, 5% tolerance, 1 W rating, DO-41 package | Higher power rating but lower Zener voltage; requires larger PCB footprint | Select when higher power margin or legacy DO-41 compatibility is required |
| BZX55-C15 (Vishay) | 15 V nominal, 5% tolerance, 500 mW, DO-35 package, 20 Ω ZZ | Same package and power rating; slightly higher impedance impacts regulation accuracy | Choose for multi-source procurement where identical DO-35 form factor is mandatory |
Compared with 1N6005B, the 1N4744A offers greater thermal headroom but shifts regulation to 14 V and increases board area, while the BZX55-C15 matches mechanical fit but trades 5 Ω higher dynamic impedance - affecting precision in low-current reference designs.
Availability
1N6005B is available at Aetrix Electronics and suitable for industrial sensor reference, low-power voltage clamp, and linear power supply regulation requiring stable component supply, consistent parametric performance, and long-lifecycle availability.
Supply support for 1N6005B 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 1N6005B belongs to Fairchild's legacy 1N5985B–1N6025B Zener diode family, designed for general-purpose precision voltage regulation in cost-sensitive, high-reliability industrial and automotive subsystems.
FAQ
What is the nominal Zener voltage of the 1N6005B and how tightly is it specified?
The 1N6005B has a nominal Zener voltage of 15.2 V, with a guaranteed minimum of 15.2 V and maximum of 16.8 V at 5 mA test current, reflecting its ±5% tolerance. This specification is verified per Fairchild's 1N5985B–1N6025B Rev. C2 datasheet, ensuring predictable regulation behavior in production designs using the 1N6005B.
Can the 1N6005B be used in surface-mount designs?
No - the 1N6005B uses a DO-35 axial glass package with leads intended for through-hole mounting. It lacks SMD-compatible terminations or tape-and-reel packaging. For surface-mount equivalents, consider SOD-123 or SOD-323 packaged Zeners like MMBZ5245B, but note that those differ in voltage, power, and thermal characteristics from the 1N6005B.
What is the maximum allowable junction temperature for continuous operation of the 1N6005B?
The 1N6005B does not specify a maximum junction temperature (TJ) separately, but its operating temperature range is -65°C to +200°C, and its power derating begins at 75°C lead temperature (TL). Since the DO-35 package has fixed thermal resistance, sustained operation above 75°C requires linear derating at 4.0 mW/°C - meaning full 500 mW is only valid up to TL = 75°C for the 1N6005B.
How does the 1N6005B compare to the 1N6004B in terms of Zener voltage and current capability?
The 1N6004B is rated for 14.25–15.75 V (15 V nominal), while the 1N6005B is rated for 15.2–16.8 V (15.2 V nominal); both share identical 500 mW power rating, 5 mA test current, and 36 mA IZM. The 1N6005B thus provides a slightly higher, distinct regulation point within the same family - making it non-interchangeable with the 1N6004B without circuit recalibration.
Is forward voltage specified for the 1N6005B, and what is its value?
Yes - the 1N6005B specifies a maximum forward voltage (VF) of 1.2 V at 200 mA forward current, consistent with standard silicon diode behavior. This parameter is relevant when the 1N6005B is used in forward-biased configurations (e.g., polarity protection), though its primary function remains reverse-bias Zener regulation.
1N6005B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- 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 FAQ
1.How can I place an order for 1N6005B through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6005B 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 reliable?
The price and inventory of 1N6005B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6005B is usually 5 days.
3.What payment methods are accepted for 1N6005B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6005B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6005B?
1N6005B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6005B 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?
For technical support, including 1N6005B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6005B requirements.
6.How does Aetrix verify that 1N6005B is sourced from the original manufacturer or authorized distributors?
All 1N6005B 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 meets industry standards.
7.What is the process for return or replacement of 1N6005B?
All 1N6005B units undergo pre-shipment inspection (PSI). If there is an issue with 1N6005B, 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 part is unused and in its original packaging.
Return procedure for 1N6005B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6005B Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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