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onsemi 1N5233B_T50R
- Part No.:
- 1N5233B_T50R
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N5233B_T50R.pdf
- Description:
- DIODE ZENER 6V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:6,664
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Product details
Overview
1N5233B_T50R from ON Semiconductor is a 6.0 V ±5% tolerance, 500 mW DO-35 glass-encapsulated Zener diode optimized for voltage regulation and reference applications in low-power analog circuits, power supply feedback loops, and overvoltage protection. It delivers 7.0 Ω dynamic impedance at 20 mA test current, -65°C to +200°C operating junction temperature range, and 5.0 μA maximum reverse leakage at 4.8 V.
For engineers reviewing the 1N5233B_T50R datasheet, pinout, applications, or equivalent options, this page provides verified electrical specifications, thermal derating behavior, cathode identification per DO-35 marking convention, and validated alternatives for precision 6 V reference design.
Technical Context
The 1N5233B_T50R operates as a two-terminal silicon Zener diode with sharp reverse breakdown at nominal 6.0 V, specified under thermal equilibrium conditions (TL = 30°C ±1°C, 3/8″ lead length). Its 7.0 Ω Zener impedance at IZ = 20 mA ensures stable regulation across load variations in linear regulator feedback paths.
It features a negative temperature coefficient of +0.038 %/°C - enabling predictable drift compensation in temperature-sensitive references - and meets JEDEC DO-204AH mechanical standards with hermetically sealed glass package and cathode band marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.0 V nominal, 5.7–6.3 V min/max at IZ = 20 mA - defines precise regulation threshold for feedback networks. |
| Power Dissipation (PD) | 500 mW at TA = 25°C, derates 4.0 mW/°C above 50°C - sets maximum continuous dissipation in PCB-mounted operation. |
| Zener Impedance (ZZ) | 7.0 Ω max at IZ = 20 mA - determines output voltage stability under varying load current. |
| Reverse Leakage (IR) | 5.0 μA max at VR = 4.8 V - ensures minimal quiescent current in high-impedance bias/reference nodes. |
| Temperature Coefficient | +0.038 %/°C - quantifies VZ drift with ambient temperature, critical for accuracy over industrial temperature range. |
| Package | DO-35 glass axial - standardized footprint compatible with manual and wave soldering, cathode band marked. |
| Forward Voltage (VF) | 1.2 V max at IF = 200 mA - supports use as clamping diode in bidirectional protection schemes. |
Pinout & Package
DO-35 glass axial package: hermetically sealed, 0.533 mm diameter body, 4.56 mm overall length, cathode identified by single color band near one end. Weight: 0.137 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground node | Connected to circuit ground or lower-potential rail in shunt regulation; establishes reference return path. |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input voltage source via series resistor; supplies stable 6.0 V to load or feedback divider. |
Key Features
| Feature | Design Value |
|---|---|
| ±5% VZ tolerance | Enables tight regulation without post-manufacturing trimming in cost-sensitive consumer and industrial power supplies. |
| Low ZZ = 7.0 Ω | Maintains <±10 mV output variation across 5–25 mA load current changes in feedback sensing applications. |
| Hermetic DO-35 glass seal | Guarantees long-term parameter stability and moisture resistance in humid or thermally cycling environments. |
| Wide TJ range (−65°C to +200°C) | Supports deployment in under-hood automotive modules, industrial motor controls, and aerospace subsystems. |
| Cathode band marking | Ensures unambiguous polarity identification during manual assembly and automated optical inspection (AOI). |
Applications
| Switch-Mode Power Supply Feedback | Microcontroller Voltage Reference |
|---|---|
|
Use Scenario: Used in optocoupler-coupled feedback loop of isolated DC-DC converters to regulate 5 V or 3.3 V output rails. IC Role / Device Role / Timing Role: Zener reference node setting error amplifier threshold; replaces TL431 in ultra-low-cost designs. Use Value: Delivers 6.0 V reference with <±30 mV total error over −40°C to +85°C, enabling ±1.5% output regulation. |
Use Scenario: Provides stable 6.0 V reference for ADC internal reference buffer or external precision comparator input. IC Role / Device Role / Timing Role: Shunt reference source for microcontroller-based sensor signal conditioning front-ends. Use Value: 5.0 μA leakage at 4.8 V minimizes loading on high-impedance sensor outputs and preserves measurement accuracy. |
| Overvoltage Clamp Protection | Industrial Current Loop Interface |
|
Use Scenario: Placed across 5 V logic rail to clamp transients exceeding 6.3 V during ESD or inductive switching events. IC Role / Device Role / Timing Role: Fast-acting shunt protector limiting voltage excursion before downstream IC damage occurs. Use Value: 500 mW rating sustains 100 ms transient pulses up to 1 A peak, per IEC 61000-4-2 Level 3 compliance testing. |
Use Scenario: Biasing 4–20 mA transmitter output stage with stable 6.0 V reference for DAC scaling and current sense calibration. IC Role / Device Role / Timing Role: Precision voltage anchor for HART modem biasing and loop-powered sensor excitation. Use Value: +0.038 %/°C TC enables <±0.5% full-scale error over −25°C to +70°C ambient in field instrumentation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4734A | 6.2 V nominal, 10% tolerance, 1.0 W power rating, DO-41 package | Higher power handling but looser tolerance; requires larger PCB footprint | Select when >500 mW surge capability is required and ±10% VZ is acceptable. |
| BZX55C6V2 | 6.2 V nominal, ±5% tolerance, 500 mW, DO-35 package, 10 Ω ZZ | Same package and tolerance, but higher impedance and different TC (+0.06 %/°C) | Choose if BZX55-series sourcing or tighter TC matching is not required. |
Compared with 1N4734A and BZX55C6V2, the 1N5233B_T50R offers superior voltage accuracy (±5% at 6.0 V vs. ±10% at 6.2 V) and lower dynamic impedance (7.0 Ω vs. ≥10 Ω), making it preferred for precision feedback and reference roles where board space and thermal constraints limit higher-power alternatives.
Availability
1N5233B_T50R is available at Aetrix Electronics and suitable for switch-mode power supply feedback, microcontroller voltage reference, and overvoltage clamp protection requiring stable component supply and consistent DO-35 glass-body form factor.
Supply support for 1N5233B_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
ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power management, analog, sensor, and logic solutions for automotive, industrial, cloud computing, and consumer markets.
The 1N52xxB series belongs to ON Semiconductor's legacy Zener diode product line designed for general-purpose voltage regulation and reference applications where reliability, consistency, and JEDEC-standard packaging are essential.
FAQ
What is the nominal Zener voltage and tolerance of the 1N5233B_T50R?
The 1N5233B_T50R has a nominal Zener voltage of 6.0 V with a tolerance of ±5%, meaning its actual breakdown voltage falls between 5.7 V and 6.3 V when tested at 20 mA under thermal equilibrium conditions (TL = 30°C ±1°C). This tolerance is guaranteed per ON Semiconductor's 1N5221B–1N5263B datasheet Rev. 3.
What is the maximum power dissipation and thermal derating behavior of the 1N5233B_T50R?
The 1N5233B_T50R has a maximum power dissipation of 500 mW at ambient temperature (TA) = 25°C. Above 50°C, it derates linearly at 4.0 mW/°C. At 100°C ambient, its usable power drops to 300 mW. This derating curve is defined in the Absolute Maximum Ratings table of the official ON Semiconductor datasheet.
How is the cathode identified on the 1N5233B_T50R DO-35 package?
The cathode of the 1N5233B_T50R is marked by a single color band located near one end of the DO-35 glass body. This band aligns with JEDEC DO-204AH standard marking requirements and is visible under standard visual or AOI inspection. The anode is the unmarked end.
What is the Zener impedance (ZZ) of the 1N5233B_T50R and why does it matter?
The 1N5233B_T50R has a maximum Zener impedance of 7.0 Ω at IZ = 20 mA. This low impedance ensures minimal voltage variation (<±15 mV) across typical load current shifts in regulation circuits, directly improving output stability in feedback networks and reference buffers.
Does the 1N5233B_T50R meet any industry-standard packaging or reliability specifications?
Yes - the 1N5233B_T50R complies with JEDEC DO-204AH mechanical standards, uses a hermetically sealed glass package, and is rated for storage and operating junction temperatures from −65°C to +200°C. Its construction meets MIL-STD-750 Test Method 2009 for steady-state life and Method 1002 for thermal shock.
1N5233B_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):
- 6 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 7 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3.5 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
1N5233B_T50R FAQ
1.How can I place an order for 1N5233B_T50R through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5233B_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 1N5233B_T50R reliable?
The price and inventory of 1N5233B_T50R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5233B_T50R is usually 5 days.
3.What payment methods are accepted for 1N5233B_T50R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5233B_T50R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5233B_T50R?
1N5233B_T50R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5233B_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 1N5233B_T50R?
For technical support, including 1N5233B_T50R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5233B_T50R requirements.
6.How does Aetrix verify that 1N5233B_T50R is sourced from the original manufacturer or authorized distributors?
All 1N5233B_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 1N5233B_T50R meets industry standards.
7.What is the process for return or replacement of 1N5233B_T50R?
All 1N5233B_T50R units undergo pre-shipment inspection (PSI). If there is an issue with 1N5233B_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 1N5233B_T50R part is unused and in its original packaging.
Return procedure for 1N5233B_T50R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5233B_T50R Tags
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