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onsemi 1N5232BTA
- Part No.:
- 1N5232BTA
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N5232BTA.pdf
- Description:
- DIODE ZENER 5.6V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:17,000
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Product details
Overview
1N5232BTA from ON Semiconductor is a 500 mW, DO-35 hermetically sealed glass Zener diode with nominal zener voltage of 5.6 V ±5%, dynamic impedance of 11 Ω at 20 mA test current, and temperature coefficient of +0.038 %/°C - used for precision low-power voltage regulation and reference in analog power supplies, sensor biasing, and overvoltage protection circuits.
For engineers reviewing the 1N5232BTA datasheet, pinout, applications, or equivalent options, key selection criteria include its 5.6 V regulation tolerance, low 11 Ω zener impedance at IZT = 20 mA, DO-35 axial package compatibility, and Class 3 ESD rating (>16 kV HBM) for robustness in industrial signal conditioning designs.
Technical Context
This device operates as a silicon-oxide passivated junction Zener regulator, optimized for stable dc voltage reference under steady-state conditions at lead temperature ≤75°C. Its double-slug, metallurgically bonded glass construction ensures hermetic sealing and thermal stability across –65°C to +200°C operating range.
The 1N5232BTA delivers regulated output via reverse-biased breakdown at 5.6 V with minimal voltage drift - supported by a positive temperature coefficient (+0.038 %/°C) and low leakage current (≤5 µA at VR = 3 V), making it suitable for low-current bias networks where thermal compensation and long-term stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.32–5.88 V at IZT = 20 mA - provides tight ±5% regulation window for stable reference generation. |
| Power Dissipation (PD) | 500 mW at TL ≤ 75°C - supports continuous operation in compact PCB layouts without forced cooling. |
| Zener Impedance (ZZT) | 11 Ω max at IZT = 20 mA - ensures low AC ripple rejection and high regulation accuracy under load variation. |
| Leakage Current (IR) | ≤5 µA at VR = 3 V - minimizes quiescent current draw in battery-powered or ultra-low-power circuits. |
| Temperature Coefficient | +0.038 %/°C - enables predictable, moderate positive drift for applications requiring thermal tracking. |
| ESD Rating | Class 3 (>16 kV HBM) - protects against electrostatic discharge during handling and board assembly. |
| Package | DO-35 (Case 299) - axial-leaded, hermetically sealed glass housing for environmental reliability and solderability. |
Pinout & Package
DO-35 (Case 299) axial-lead glass package with cathode indicated by a painted band; leads are corrosion-resistant and readily solderable; maximum soldering temperature is 230°C at 1/16″ from case for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; establishes reference polarity for reverse-bias operation. |
| Cathode | Zener breakdown terminal / regulated output node | Connected to supply rail or load; delivers stable 5.6 V when reverse-biased above breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and degradation in humid or corrosive environments - extends operational life beyond plastic-packaged alternatives. |
| Double-slug construction | Improves thermal dissipation and mechanical robustness - maintains parameter stability under thermal cycling and vibration stress. |
| Silicon-oxide passivated junction | Reduces surface leakage and enhances long-term voltage stability - critical for precision reference applications over 10+ year service life. |
| Class 3 ESD rating | Withstands >16 kV human-body-model discharge - eliminates need for external ESD protection in front-end analog stages. |
| JEDEC-standard DO-35 footprint | Ensures drop-in compatibility with legacy designs and automated axial-lead assembly equipment - no retooling required. |
Applications
| Industrial Sensor Biasing | Low-Power Voltage Reference |
|---|---|
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) and bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Zener diode acting as two-terminal shunt voltage reference, regulating bias voltage independent of supply fluctuations. Use Value: Delivers 5.6 V ±5% with <11 Ω dynamic impedance, minimizing sensor output error caused by supply ripple or load transients. |
Use Scenario: Generating precise reference for ADCs and comparators in portable medical monitors and handheld test equipment. IC Role / Device Role / Timing Role: Passive voltage reference element establishing known threshold for analog-to-digital conversion and level detection. Use Value: Low 5 µA leakage at 3 V reverse bias preserves battery life while maintaining regulation accuracy across –40°C to +85°C ambient range. |
| Overvoltage Clamp Protection | Linear Regulator Feedback Divider |
Use Scenario: Clamping transient surges on 5 V logic rails in PLC I/O modules exposed to inductive switching noise. IC Role / Device Role / Timing Role: Shunt protection device conducting excess energy to ground when input exceeds 5.6 V breakdown threshold. Use Value: Withstands non-repetitive surge pulses up to 100 W (10 ms, 5% duty cycle), preventing downstream IC damage without crowbar action. |
Use Scenario: Setting output voltage of adjustable linear regulators (e.g., LM317) in embedded power management subsystems. IC Role / Device Role / Timing Role: Precision reference node in feedback divider network, defining regulated output via resistor ratio scaling. Use Value: Stable +0.038 %/°C TC enables predictable output drift matching system thermal profile - simplifies calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5232BRL | Same electrical specs; tape-and-reel packaging (3000 pcs/reel) vs. ammo pack (5000 pcs) for SMT-compatible axial feeders. | Designed for automated placement in high-volume manufacturing; identical performance but different logistics format. | Select 1N5232BRL when integrating into pick-and-place production lines requiring tape-fed components. |
| BZX55C5V6 | 5.6 V ±5%, 500 mW, DO-35 - same regulation and power, but lower ESD rating (Class 2, 4 kV HBM) and higher ZZT (20 Ω). | Acceptable for cost-sensitive consumer electronics where ESD immunity and regulation tightness are less critical. | Choose BZX55C5V6 only if ESD robustness and sub-12 Ω impedance are not required; verify thermal derating matches 1N5232BTA's 4.0 mW/°C slope. |
Compared with 1N5232BTA, 1N5232BRL offers identical electrical behavior in a machine-ready format, while BZX55C5V6 trades ESD resilience and lower impedance for lower cost - making 1N5232BTA the preferred choice for industrial-grade voltage references demanding reliability and precision.
Availability
1N5232BTA is available at Aetrix Electronics and suitable for industrial sensor biasing, low-power voltage reference, and overvoltage clamp protection requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1N5232BTA 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, and sensor solutions for automotive, industrial, and cloud infrastructure markets.
The 1N52xxB series was designed specifically for general-purpose, high-reliability Zener regulation in space-constrained, thermally demanding environments - emphasizing hermetic sealing, ESD hardness, and JEDEC-compliant manufacturability.
FAQ
What is the nominal zener voltage and tolerance of the 1N5232BTA?
The 1N5232BTA has a nominal zener voltage of 5.6 V with a tolerance of ±5%, corresponding to a guaranteed range of 5.32 V to 5.88 V at IZT = 20 mA and TL = 30°C. This tolerance is defined per JEDEC standards and verified under thermal equilibrium conditions with 3/8″ lead length.
Can the 1N5232BTA be used in surface-mount designs?
No - the 1N5232BTA uses a DO-35 axial-leaded glass package (Case 299) intended for through-hole mounting. It is not compatible with standard SMT reflow processes. For surface-mount equivalents, consider SOD-123 or SOD-323 packaged Zeners like MMBZ5232BS, which offer similar 5.6 V regulation but require layout adaptation.
What is the maximum power dissipation and thermal derating behavior of the 1N5232BTA?
The 1N5232BTA is rated for 500 mW steady-state power dissipation at lead temperature (TL) ≤ 75°C. Above 75°C, it derates linearly at 4.0 mW/°C - meaning at 100°C TL, maximum allowable power drops to 400 mW. Derating assumes 3/8″ lead length and no heatsink.
Does the 1N5232BTA have a specified forward voltage characteristic?
Yes - the 1N5232BTA exhibits a forward voltage (VF) of ≤1.1 V at IF = 200 mA, consistent with standard silicon diode behavior. This specification supports use in dual-role applications such as reverse-polarity protection combined with voltage clamping, though primary function remains Zener regulation in reverse bias.
How does the temperature coefficient of the 1N5232BTA affect its regulation accuracy over temperature?
The 1N5232BTA has a positive temperature coefficient of +0.038 %/°C, meaning its zener voltage increases by approximately 2.13 mV/°C around 5.6 V. Over a –40°C to +125°C junction range, this results in ~350 mV total drift - acceptable for non-critical references but requires compensation in high-precision systems.
1N5232BTA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-35
1N5232BTA FAQ
1.How can I place an order for 1N5232BTA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5232BTA 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 1N5232BTA reliable?
The price and inventory of 1N5232BTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5232BTA is usually 5 days.
3.What payment methods are accepted for 1N5232BTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5232BTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5232BTA?
1N5232BTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5232BTA 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 1N5232BTA?
For technical support, including 1N5232BTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5232BTA requirements.
6.How does Aetrix verify that 1N5232BTA is sourced from the original manufacturer or authorized distributors?
All 1N5232BTA 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 1N5232BTA meets industry standards.
7.What is the process for return or replacement of 1N5232BTA?
All 1N5232BTA units undergo pre-shipment inspection (PSI). If there is an issue with 1N5232BTA, 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 1N5232BTA part is unused and in its original packaging.
Return procedure for 1N5232BTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5232BTA Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZT52C15-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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SMAJ4744A-TP
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SMAZ12-13-F
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