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Microchip Technology 1N5232A/TR
- Part No.:
- 1N5232A/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N5232A/TR.pdf
- Description:
- DIODE ZENER 5.6V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,781
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Product details
Overview
1N5232A/TR from Microsemi is a 5.6 V, ±10% tolerance, 500 mW glass axial-lead Zener diode in DO-35 (DO-204AH) package, rated for 20 mA test current, 11 Ω dynamic impedance at IZT, and operating from –65°C to +175°C. It serves as a precision voltage reference or shunt regulator in low-power analog circuits, power supply feedback paths, and overvoltage protection.
For engineers reviewing the 1N5232A/TR datasheet, 1N5232A/TR pinout, 1N5232A/TR application, or 1N5232A/TR equivalent, key selection factors include its 5.6 V nominal Zener voltage, ±10% tolerance (A suffix), 500 mW power rating at 25°C, DO-35 mechanical form factor, and temperature coefficient of +0.038 %/°C - all critical for stable biasing and regulation in industrial and aerospace environments.
Technical Context
This Zener diode operates in reverse breakdown mode with cathode band indicating the positive terminal during regulation. Its electrical behavior is defined by a sharp knee at 20 mA test current (IZT), where dynamic impedance (ZZT) is measured at 11 Ω, and knee impedance (ZZK) is 5.0 Ω at 0.25 mA. The device exhibits minimal capacitance per Figure 2 and is nonsensitive to ESD per MIL-STD-750 Method 1020.
Thermal performance is characterized by 250 °C/W junction-to-lead resistance at 10 mm lead length and 310 °C/W junction-to-ambient on FR4 with specified copper layout. Derating begins above 50°C lead temperature or 25°C ambient, maintaining 0.48 W steady-state power on PCB under standard mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 5.6 V @ 20 mA - defines regulated output voltage under standard test conditions |
| Zener Tolerance | ±10% (A suffix) - sets worst-case regulation window from 5.04 V to 6.16 V |
| Power Dissipation | 500 mW at 25°C - maximum continuous DC power before thermal derating applies |
| Dynamic Impedance | 11 Ω @ IZT - indicates voltage stability under small-signal AC variations around 20 mA |
| Temperature Coefficient | +0.038 %/°C - quantifies Zener voltage drift with temperature rise, critical for wide-temp designs |
| Reverse Leakage | 50 μA @ 4.8 V - maximum off-state current below breakdown, affecting standby power loss |
| Package | DO-35 (DO-204AH) - hermetically sealed glass axial-leaded package with 0.2 g mass and tin-lead plating |
Pinout & Package
DO-35 (DO-204AH) is a hermetically sealed glass axial-leaded package with cathode indicated by a single dark band. Leads are flexible for through-hole mounting, and polarity must be observed: cathode (banded end) is positive relative to anode during Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node / ground return | Connected to circuit common; reverse-biased current flows from cathode to anode during regulation |
| Cathode | Zener output / regulated voltage node | Banded end; held at 5.6 V ±10% when reverse current ≥ IZK (0.25 mA) and ≤ IZM (90 mA) |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with JEDEC 1N5232 standard for interchangeability and test methodology |
| Radiation-hardened construction | Inherently radiation hard per MicroNote 050 - suitable for space-grade and high-reliability applications |
| ESD insensitivity | Qualified to MIL-STD-750 Method 1020 - no special handling required in assembly |
| RoHS-compliant option | e3 suffix available - annealed matte-tin plating meets lead-free soldering requirements |
| Tape-and-reel packaging | TR suffix denotes EIA-296 compliant tape-and-reel - supports automated SMT placement with axial-lead adapters |
Applications
| Overvoltage Clamp in Sensor Signal Conditioning | Low-Power Voltage Reference for ADC Biasing |
|---|---|
Use Scenario: Protects 3.3 V or 5 V analog sensor outputs from transient surges exceeding rail voltage. IC Role / Device Role / Timing Role: Shunt clamping element placed between signal line and ground, conducting only above 5.6 V. Use Value: Limits peak voltage to 5.6 V ±10%, preventing damage to downstream op-amps or ADC inputs without adding series resistance. | Use Scenario: Provides stable 5.6 V reference for biasing precision op-amps or setting ADC reference thresholds. IC Role / Device Role / Timing Role: Passive voltage reference source in low-current (<1 mA) bias networks. Use Value: Delivers <11 Ω dynamic impedance and +0.038 %/°C TC, enabling sub-10 mV drift over –40°C to +85°C ambient. |
| Feedback Regulation in Isolated DC-DC Converters | Programmable Threshold Detector in Power Sequencing |
Use Scenario: Sets secondary-side output voltage in optocoupler-feedback isolated flyback converters. IC Role / Device Role / Timing Role: Zener element in TL431-like shunt regulator configuration, defining error amplifier reference point. Use Value: Enables accurate 5.6 V setpoint with ±10% tolerance and stable knee at 20 mA, supporting tight output regulation within 3%. | Use Scenario: Triggers reset or enable logic when system voltage crosses 5.6 V during power-up or brownout. IC Role / Device Role / Timing Role: Threshold detection element paired with comparator or transistor switch. Use Value: Provides repeatable 5.6 V switching point with 50 μA leakage at 4.8 V, minimizing false triggers in noisy power rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4734A | Same 5.6 V nominal, ±5% tolerance (B suffix), 1 W power rating, DO-41 package | Higher power handling and tighter tolerance, but larger footprint and different thermal profile | Select when >500 mW dissipation or ±5% regulation accuracy is required; verify PCB pad compatibility |
| MMBZ5232BS | 5.6 V, ±10%, 200 mW, SOT-23 surface-mount package, same Zener characteristics | Enables automated assembly and space-constrained layouts, but lower power and different thermal resistance | Select for compact PCBs or reflow-only processes; derate power to 150 mW at 70°C ambient |
Compared with 1N4734A and MMBZ5232BS, the 1N5232A/TR offers a balance of legacy DO-35 reliability, 500 mW capability, and axial-lead serviceability - ideal for repairable, high-temperature, or radiation-sensitive systems where DO-41 size or SMT constraints are not acceptable.
Availability
1N5232A/TR is available at Aetrix Electronics and suitable for industrial control interfaces, aerospace power monitoring, and medical sensor biasing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 1N5232A/TR 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
Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability, radiation-hardened, and aerospace-grade components.
The 1N52xx series was designed for precision voltage regulation in mission-critical analog systems where long-term stability, wide temperature operation, and ESD resilience are mandatory - particularly in defense, space, and industrial infrastructure.
FAQ
What is the nominal Zener voltage and tolerance of the 1N5232A/TR?
The 1N5232A/TR has a nominal Zener voltage of 5.6 V with a tolerance of ±10%, as indicated by the "A" suffix. This means the actual breakdown voltage falls between 5.04 V and 6.16 V when tested at 20 mA (IZT) and 25°C. The tolerance is guaranteed per JEDEC specification, and the device is not rated for tighter tolerances unless marked with "C" (±2%) or "D" (±1%).
What package type and mounting style does the 1N5232A/TR use?
The 1N5232A/TR uses the DO-35 (also designated DO-204AH) package: a hermetically sealed glass axial-leaded case with tin-lead or RoHS-compliant matte-tin plating. It is designed for through-hole mounting with 10 mm minimum lead length from the body for thermal rating compliance, and polarity is marked by a single cathode band.
How does the 1N5232A/TR perform under elevated temperature conditions?
The 1N5232A/TR operates from –65°C to +175°C and exhibits a temperature coefficient of +0.038 %/°C. Its power dissipation must be derated above 50°C lead temperature (250 °C/W) or 25°C ambient (310 °C/W on FR4), dropping to 0.48 W at 25°C ambient. Thermal resistance and voltage drift are validated per MicroNote 202 and MicroNote 050.
Is the 1N5232A/TR suitable for space or high-reliability applications?
Yes, the 1N5232A/TR is inherently radiation-hardened per MicroNote 050 and qualified to MIL-STD-750 Method 1020 for ESD insensitivity. Military screening variants (e.g., JANTXV-1N5232A) are available with MQ/MX/MV prefixes. Its glass-body DO-35 construction and wide temperature range make it appropriate for satellite, avionics, and nuclear instrumentation systems.
What is the maximum reverse leakage current for the 1N5232A/TR, and at what voltage is it specified?
The 1N5232A/TR has a maximum reverse leakage current (IR) of 50 μA, specified at VR = 4.8 V - which is 85% of its nominal 5.6 V Zener voltage. This value is guaranteed per the "A & B Suffix Only" column in the Electrical Characteristics table and reflects off-state conduction prior to breakdown onset.
1N5232A/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±10%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 11 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 2.9 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N5232A/TR FAQ
1.How can I place an order for 1N5232A/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5232A/TR 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 1N5232A/TR reliable?
The price and inventory of 1N5232A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5232A/TR is usually 5 days.
3.What payment methods are accepted for 1N5232A/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5232A/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5232A/TR?
1N5232A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5232A/TR 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 1N5232A/TR?
For technical support, including 1N5232A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5232A/TR requirements.
6.How does Aetrix verify that 1N5232A/TR is sourced from the original manufacturer or authorized distributors?
All 1N5232A/TR 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 1N5232A/TR meets industry standards.
7.What is the process for return or replacement of 1N5232A/TR?
All 1N5232A/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5232A/TR, 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 1N5232A/TR part is unused and in its original packaging.
Return procedure for 1N5232A/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5232A/TR Tags
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MM5Z5V1ST1G
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