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onsemi 1N6004B_T50R
- Part No.:
- 1N6004B_T50R
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N6004B_T50R.pdf
- Description:
- DIODE ZENER 15V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:9,643
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Product details
Overview
1N6004B_T50R from Fairchild Semiconductor is a 15 V ±5% Zener diode in DO-35 glass package, rated for 500 mW power dissipation at TL ≤ 75°C, with 32 mA maximum Zener current (IZM), 600 Ω dynamic impedance (ZZ) at 5 mA test current, and 0.1 mA leakage current at 11 V reverse voltage. It provides precision voltage regulation in low-power analog reference and overvoltage protection circuits.
For engineers reviewing the 1N6004B_T50R datasheet, pinout, applications, or equivalent options, key selection criteria include verified Zener voltage tolerance (±5%), thermal derating behavior (4.0 mW/°C above 75°C), DO-35 mechanical compatibility, and guaranteed leakage performance at VR = 11 V.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load and temperature conditions. Its 15 V nominal Zener voltage is specified at 5 mA test current with tight 5% tolerance, and it exhibits 600 Ω dynamic impedance at that bias point.
The device features a DO-35 axial glass package with cathode band marking, supports operation from –65°C to +200°C, and follows Fairchild's standard 1N60xxB series construction with consistent thermal derating (4.0 mW/°C) and forward voltage ≤1.2 V at 200 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.25–15.75 V @ IZ = 5 mA - defines regulated output voltage range with ±5% tolerance for stable reference design |
| Power Dissipation (PD) | 500 mW @ TL ≤ 75°C - sets maximum continuous power handling before thermal derating applies |
| Zener Impedance (ZZ) | 600 Ω @ IZ = 5 mA - indicates voltage regulation stiffness; lower values improve load regulation |
| Leakage Current (IR) | 0.1 mA @ VR = 11 V - ensures minimal off-state current in clamping or standby modes |
| Max Zener Current (IZM) | 32 mA - derived from PD and VZ; limits peak safe operating current under worst-case regulation |
| Operating Temperature | –65°C to +200°C - enables use in automotive under-hood, industrial, and aerospace environments |
Pinout & Package
DO-35 glass axial package with cathode identified by a single color band on the body; two-terminal device with no polarity-sensitive mounting orientation beyond cathode band alignment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener breakdown reference node | Connected to lower-potential side in regulation or clamp configuration; determines current direction during reverse bias |
| Cathode | Zener breakdown terminal / voltage reference output | Marked with color band; connected to higher-potential side to enable controlled reverse breakdown at VZ |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables direct substitution in precision 15 V reference designs without recalibration or trimming |
| 600 Ω dynamic impedance at 5 mA | Provides predictable regulation error under load shifts up to ±10 mA around nominal bias point |
| 0.1 mA leakage at 11 V | Ensures negligible quiescent current draw in battery-powered or high-impedance sensing nodes |
| DO-35 glass package with cathode band | Supports manual assembly, wave soldering, and visual polarity verification in production |
Applications
| Industrial Sensor Reference | Low-Power Voltage Clamp |
|---|---|
Use Scenario: Providing stable 15 V reference for 12-bit ADC front-end in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference for op-amp buffer stage driving ADC reference pin. Use Value: ±5% VZ tolerance and 600 Ω ZZ ensure <±3 mV reference drift across 0–70°C ambient, meeting PLC accuracy class requirements. |
Use Scenario: Protecting microcontroller GPIO pins from transient overvoltage events on 12 V supply rails in HVAC control boards. IC Role / Device Role / Timing Role: Shunt clamping device limiting rail voltage to 15.75 V max during ESD or load-dump transients. Use Value: 32 mA IZM and 500 mW PD allow sustained clamping of 100 ms pulses without thermal runaway or parameter shift. |
| Automotive Cabin Electronics | Medical Instrument Power Supervision |
Use Scenario: Regulating auxiliary 15 V rail for display backlight driver IC in automotive infotainment head units. IC Role / Device Role / Timing Role: Passive voltage regulator stabilizing unregulated 12–16 V vehicle supply for constant-current LED driver. Use Value: –65°C to +200°C operating range accommodates under-dash mounting locations with extreme thermal cycling. |
Use Scenario: Monitoring main 15 V DC supply integrity in portable ultrasound probe electronics. IC Role / Device Role / Timing Role: Voltage supervisor element comparing rail against 14.25 V threshold via comparator input. Use Value: 0.1 mA IR at 11 V ensures <1 µA total current draw in supervisory path, preserving battery life in handheld mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4744A | 15 V ±5%, DO-41 package, 1 W PD, 20 Ω ZZ @ 20 mA - higher power, lower impedance, larger footprint | Requires PCB layout change due to DO-41 size; better suited for higher-current regulation (>20 mA) | Select when >500 mW dissipation or <50 Ω impedance is required; not drop-in compatible |
| BZX55-C15 | 15 V ±5%, DO-35 package, 500 mW PD, 100 Ω ZZ @ 5 mA - tighter impedance spec but same outline and rating | Same mechanical fit; improved regulation stiffness for precision references where 100 Ω ZZ is critical | Preferred for new designs needing lower ZZ; requires validation of leakage (5 µA @ 12 V vs. 0.1 mA @ 11 V) |
Compared with 1N6004B_T50R, 1N4744A offers higher power and lower impedance but demands board rework, while BZX55-C15 matches the DO-35 form factor and power rating but delivers superior impedance-making it a direct upgrade where tighter regulation is prioritized over legacy compatibility.
Availability
1N6004B_T50R is available at Aetrix Electronics and suitable for industrial sensor reference, low-power voltage clamp, and automotive cabin electronics requiring stable component supply with full traceability and lifecycle support.
Supply support for 1N6004B_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.
The 1N6004B_T50R belongs to Fairchild's legacy 1N60xxB Zener diode family, designed for general-purpose voltage regulation and transient suppression in cost-sensitive, thermally demanding applications.
FAQ
What is the Zener voltage tolerance for 1N6004B_T50R?
The 1N6004B_T50R has a Zener voltage tolerance of ±5%, meaning its breakdown voltage falls between 14.25 V and 15.75 V when tested at 5 mA. This tolerance is confirmed in the Fairchild 1N5985B–1N6025B datasheet Rev. C2, page 2, and applies directly to the 1N6004B_T50R variant as part of the 1N60xxB series. The 1N6004B_T50R maintains this specification across its full operating temperature range.
Does 1N6004B_T50R have a specified forward voltage?
Yes, the 1N6004B_T50R has a maximum forward voltage (VF) of 1.2 V at 200 mA forward current, as stated in the "Electrical Characteristics" table on page 2 of the Fairchild datasheet. This VF value is relevant for applications involving bidirectional protection or forward-conduction paths, and is consistent across all 1N60xxB devices including the 1N6004B_T50R.
What is the thermal derating slope for 1N6004B_T50R?
The 1N6004B_T50R derates at 4.0 mW/°C above a lead temperature (TL) of 75°C, per the Absolute Maximum Ratings table on page 1 of the Fairchild datasheet. This linear derating applies to the 500 mW nominal power dissipation and is valid for the DO-35 package with 3/8″ lead length. Engineers must apply this slope when calculating safe operating area in elevated ambient environments.
Is 1N6004B_T50R compatible with automated optical inspection (AOI)?
Yes, the 1N6004B_T50R's DO-35 glass package features a clearly defined cathode band and standardized top marking (LOGO / 00 / 4B per page 3 of the datasheet), enabling reliable AOI detection during SMT post-placement verification. Its axial symmetry and consistent band contrast meet IPC-A-610 Class 2 visual inspection criteria for discrete diodes.
What is the maximum leakage current for 1N6004B_T50R at 11 V reverse voltage?
The 1N6004B_T50R has a maximum leakage current (IR) of 0.1 mA at VR = 11 V, as specified in the Electrical Characteristics table on page 2 of the Fairchild datasheet. This value is measured at TA = 25°C and defines the upper bound of off-state conduction in clamping or reference configurations where the diode remains below its Zener knee.
1N6004B_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):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 32 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 11 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
1N6004B_T50R FAQ
1.How can I place an order for 1N6004B_T50R through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6004B_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 1N6004B_T50R reliable?
The price and inventory of 1N6004B_T50R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6004B_T50R is usually 5 days.
3.What payment methods are accepted for 1N6004B_T50R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6004B_T50R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6004B_T50R?
1N6004B_T50R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6004B_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 1N6004B_T50R?
For technical support, including 1N6004B_T50R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6004B_T50R requirements.
6.How does Aetrix verify that 1N6004B_T50R is sourced from the original manufacturer or authorized distributors?
All 1N6004B_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 1N6004B_T50R meets industry standards.
7.What is the process for return or replacement of 1N6004B_T50R?
All 1N6004B_T50R units undergo pre-shipment inspection (PSI). If there is an issue with 1N6004B_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 1N6004B_T50R part is unused and in its original packaging.
Return procedure for 1N6004B_T50R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6004B_T50R Tags
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