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onsemi 1N5232B_T26A
- Part No.:
- 1N5232B_T26A
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N5232B_T26A.pdf
- Description:
- DIODE ZENER 5.6V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:8,888
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Product details
Overview
1N5232B_T26A from ON Semiconductor is a 5.6 V ±5% tolerance, 500 mW DO-35 glass-encapsulated Zener diode optimized for precision voltage regulation and reference applications in low-power analog circuits, power supply feedback loops, and overvoltage protection. It delivers 11 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 4.0 V.
For engineers reviewing the 1N5232B_T26A datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage accuracy, thermal stability (±0.038 %/°C TC), low dynamic impedance, DO-35 mechanical compatibility, and compliance with JEDEC DO-204AH standards.
Technical Context
This device operates as a two-terminal silicon Zener diode in reverse breakdown mode, maintaining stable output voltage across load and line variations. Its 5.6 V nominal Zener voltage falls within the optimal range for low-noise voltage references where temperature coefficient crosses zero near room temperature.
The DO-35 hermetically sealed glass package ensures long-term parameter stability and high reliability under thermal cycling. The 1N5232B_T26A exhibits 17 Ω Zener impedance at 20 mA and 1,600 Ω knee impedance at 0.25 mA, enabling precise regulation in both active and standby biasing conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.32 V min / 5.6 V typ / 5.88 V max @ IZ = 20 mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (PD) | 500 mW @ TA = 25°C - sets maximum continuous DC power handling in free-air environment |
| Zener Impedance (ZZ) | 11 Ω @ IZ = 20 mA - determines output voltage variation under load current changes |
| Temperature Coefficient (TC) | +0.038 %/°C - quantifies voltage drift per degree Celsius, critical for temperature-sensitive references |
| Reverse Leakage (IR) | 5.0 μA max @ VR = 4.0 V - limits error current in high-impedance bias networks |
| Package | DO-35 glass axial - provides hermetic sealing, JEDEC-compliant footprint, and 0.137 g mass for manual or automated assembly |
Pinout & Package
DO-35 glass axial package with cathode band marking; leads are unmarked anode and banded cathode terminals. Mechanical dimensions comply with JEDEC DO-204AH: body diameter 1.91 mm, length 4.56 mm, lead diameter 0.46 mm, overall length ≥25.40 mm (T50), lead spacing ≥14.00 mm (T26).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground node | Connected to circuit ground or lower-potential node when used in shunt regulation configuration |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input voltage source through series resistor; supplies stable 5.6 V reference to load |
Key Features
| Feature | Design Value |
|---|---|
| 5% Zener voltage tolerance | Ensures tight initial voltage accuracy without post-manufacture trimming in cost-sensitive designs |
| +0.038 %/°C temperature coefficient | Minimizes drift in ambient-temperature-varying environments such as industrial control panels |
| 11 Ω dynamic impedance at 20 mA | Supports stable regulation under moderate load transients in feedback networks of linear regulators |
| Hermetically sealed DO-35 glass package | Guarantees long-term parametric stability and resistance to moisture-induced degradation |
| -65°C to +200°C operating junction range | Enables deployment in automotive engine compartments and aerospace power conditioning modules |
Applications
| Voltage Reference for Op-Amp Circuits | Overvoltage Clamp in Sensor Interfaces |
|---|---|
Use Scenario: Providing stable 5.6 V bias to instrumentation amplifier input stages in data acquisition systems. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise common-mode level for differential signal conditioning. Use Value: 11 Ω ZZ and +0.038 %/°C TC ensure <±2 mV drift over 0–70°C, preserving ADC effective resolution. |
Use Scenario: Protecting microcontroller ADC inputs from transient overvoltage during ESD events in environmental sensor nodes. IC Role / Device Role / Timing Role: Passive clamping element limiting input voltage to safe 5.6 V ceiling before signal conditioning stage. Use Value: 500 mW PD rating absorbs 8.3 ms pulses without degradation, meeting IEC 61000-4-2 Level 3 immunity. |
| Feedback Regulation in Linear Power Supplies | Low-Power Microcontroller Reset Circuit |
Use Scenario: Setting output voltage in adjustable LDO feedback divider networks for point-of-load regulation. IC Role / Device Role / Timing Role: Precision Zener reference replacing resistive divider to improve load regulation and line transient response. Use Value: 5.32–5.88 V VZ window enables accurate 5.0 V output setting with <±1% total error including resistor tolerances. |
Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers using simple RC-Zener timing network. IC Role / Device Role / Timing Role: Threshold detector establishing reliable brown-out detection at 5.6 V before regulator dropout. Use Value: 5.0 μA IR at 4.0 V ensures minimal current draw in sleep mode while maintaining fast release time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4734A | 5.6 V nominal, 1 W power rating, 5% tolerance, DO-41 package | Higher power dissipation supports higher current regulation but requires larger PCB footprint | Select when >500 mW continuous power or improved thermal margin is required |
| BZX55C5V6 | 5.6 V nominal, 500 mW, 5% tolerance, DO-35 package, ±0.05 %/°C TC | Higher temperature coefficient reduces thermal stability in wide-temperature-range deployments | Select when direct DO-35 drop-in replacement is needed but tighter TC is not critical |
Compared with 1N4734A and BZX55C5V6, the 1N5232B_T26A offers superior thermal stability (+0.038 %/°C) in the same DO-35 form factor, making it preferred for precision analog references where temperature-induced drift must be minimized without increasing board area.
Availability
1N5232B_T26A is available at Aetrix Electronics and suitable for voltage reference design, overvoltage protection, and linear regulator feedback applications requiring stable component supply, consistent parametric performance, and JEDEC-standard DO-35 packaging.
Supply support for 1N5232B_T26A 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, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1N52xxB series belongs to ON Semiconductor's legacy Zener diode product line, designed specifically for general-purpose voltage regulation, reference, and protection in cost-sensitive, space-constrained, and thermally demanding applications.
FAQ
What is the nominal Zener voltage of the 1N5232B_T26A and how is it tested?
The 1N5232B_T26A has a nominal Zener voltage of 5.6 V, with minimum and maximum values of 5.32 V and 5.88 V respectively, measured at 20 mA test current (IZ) under thermal equilibrium at 30°C ±1°C lead temperature. This specification is verified per ON Semiconductor's electrical characterization methodology detailed in the 1N5221B–1N5263B datasheet Rev. 3.
Does the 1N5232B_T26A have a specified forward voltage?
Yes, the 1N5232B_T26A specifies a maximum forward voltage (VF) of 1.2 V at 200 mA forward current. This parameter is relevant for applications where the device may experience brief forward conduction during startup or fault conditions, though its primary function remains reverse-biased Zener regulation.
What is the temperature coefficient of the 1N5232B_T26A and why does it matter?
The 1N5232B_T26A has a temperature coefficient of +0.038 %/°C, meaning its Zener voltage increases by approximately 2.13 mV per °C rise in junction temperature. This low, positive TC is critical for minimizing drift in precision reference circuits operating across industrial temperature ranges (−40°C to +85°C).
Can the 1N5232B_T26A be used in surface-mount designs?
No - the 1N5232B_T26A uses a DO-35 glass axial package with radial leads intended for through-hole mounting. It is not compatible with SMT reflow processes due to glass-body thermal limitations and lack of solderable terminations. For SMT equivalents, consider ON Semiconductor's NSZ5V6AXV5T1G or similar SOD-123 devices.
How does the 1N5232B_T26A compare to the 1N5232B without the "_T26A" suffix?
The "_T26A" suffix denotes a specific tape-and-reel packaging variant compliant with JEDEC standard T26 lead spacing (≥14.00 mm), confirming mechanical consistency for automated insertion equipment. Electrically and thermally, the 1N5232B_T26A is identical to the base 1N5232B part - no parameter differences exist between the two designations.
1N5232B_T26A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 11 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3 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
1N5232B_T26A FAQ
1.How can I place an order for 1N5232B_T26A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5232B_T26A 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 1N5232B_T26A reliable?
The price and inventory of 1N5232B_T26A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5232B_T26A is usually 5 days.
3.What payment methods are accepted for 1N5232B_T26A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5232B_T26A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5232B_T26A?
1N5232B_T26A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5232B_T26A 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 1N5232B_T26A?
For technical support, including 1N5232B_T26A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5232B_T26A requirements.
6.How does Aetrix verify that 1N5232B_T26A is sourced from the original manufacturer or authorized distributors?
All 1N5232B_T26A 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 1N5232B_T26A meets industry standards.
7.What is the process for return or replacement of 1N5232B_T26A?
All 1N5232B_T26A units undergo pre-shipment inspection (PSI). If there is an issue with 1N5232B_T26A, 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 1N5232B_T26A part is unused and in its original packaging.
Return procedure for 1N5232B_T26A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5232B_T26A Tags
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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
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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