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Microchip Technology 1N5232BUR-1/TR
- Part No.:
- 1N5232BUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N5232BUR-1/TR.pdf
- Description:
- DIODE ZENER 5.6V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,386
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Product details
Overview
1N5232BUR-1/TR from Microsemi is a 5.6 V, ±5% tolerance, 500 mW surface-mount Zener diode in a hermetically sealed DO-213AA (MELF) glass package, designed for precision voltage regulation in low-power analog circuits, reference supplies, and overvoltage protection. It delivers 11 Ω dynamic impedance at 20 mA test current, operates from –65 °C to +175 °C, and exhibits +0.038 %/°C temperature coefficient.
For engineers reviewing the 1N5232BUR-1/TR datasheet, 1N5232BUR-1/TR pinout, 1N5232BUR-1/TR application, or 1N5232BUR-1/TR equivalent, key selection criteria include Zener voltage stability across temperature, low leakage (<5 µA at 2.9 V), minimal capacitance (~1.6 pF), and compatibility with automated SMT assembly under 260 °C solder reflow.
Technical Context
This device functions as a two-terminal reverse-biased voltage reference, operating in the Zener breakdown region with a nominal regulation voltage of 5.6 V at 20 mA. Its metallurgically bonded glass construction ensures hermetic sealing and radiation hardness per MicroNote 050, while its DO-213AA package enables stable thermal performance with RθJA = 250 °C/W on FR4 board.
The 1N5232BUR-1/TR exhibits a positive temperature coefficient (+0.038 %/°C), indicating increasing Zener voltage with rising junction temperature - a critical factor when used in temperature-compensated references or bias networks. Its low 5 µA maximum reverse leakage at 2.9 V supports high-impedance sensing and low-quiescent-current designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.6 V at IZT = 20 mA - stable reference point for analog feedback or clamping |
| Power Dissipation | 0.5 W - limits continuous regulation current to ~89 mA at 5.6 V without derating |
| Zener Impedance ZZT | 11 Ω - low dynamic resistance ensures minimal output voltage variation under load transients |
| Reverse Leakage IR | <5 µA at VR = 2.9 V - preserves accuracy in high-impedance divider or sensor interfaces |
| Temp. Coefficient αVZ | +0.038 %/°C - predictable drift behavior enables compensation in multi-device references |
| Junction Temp. Range | –65 °C to +175 °C - supports operation in aerospace, downhole, or industrial environments |
| Package | DO-213AA (SOD80/MLL34) MELF - robust glass body with end-cap terminations for reliable SMT mounting |
Pinout & Package
Hermetically sealed DO-213AA (MELF) glass package with axial symmetry and cathode band marking. Terminals are tin-lead or RoHS-compliant matte-tin plated end caps, solderable per MIL-STD-750 Method 2026. No polarity-specific PCB footprint required - orientation determined by cathode band placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener anode connection during forward bias; regulated output node in reverse bias | Must be held at higher potential than anode to enable Zener conduction; defines reference polarity |
| Anode (unbanded end) | Reference ground or return path in regulation circuit | Serves as current sink node; connects to system ground or bias resistor network |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgically bonded glass construction | Enables hermetic sealing and inherent radiation hardness per MicroNote 050 for harsh-environment reliability |
| ±5% Zener voltage tolerance (suffix "B") | Guarantees 5.32–5.88 V regulation at 20 mA without binning or post-assembly calibration |
| Low 1.6 pF typical capacitance | Minimizes signal coupling and phase shift in RF detector or high-speed clamp applications |
| ESD insensitivity (MIL-STD-750 Method 1020) | Eliminates need for external ESD protection in handling and board-level integration |
| RoHS-compliant option (e3 suffix) | Meets EU Directive 2011/65/EU for commercial-grade assemblies without lead content restrictions |
Applications
| Low-Power Voltage Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 5.6 V bias for op-amp input stages or ADC reference dividers in battery-powered instrumentation. IC Role / Device Role / Timing Role: Two-terminal shunt reference establishing precise DC potential independent of supply variation. Use Value: Maintains <±1% output deviation across –40 °C to +85 °C ambient due to +0.038 %/°C TC and low thermal resistance. | Use Scenario: Protecting microcontroller I/O pins from transient surges exceeding 5.6 V in industrial control panels. IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverting excess energy to ground before damage threshold is reached. Use Value: Responds within nanoseconds with <5 µA leakage below clamp voltage, preserving signal integrity during normal operation. |
| Temperature-Stable Bias Network | Current-Limited LED Driver |
Use Scenario: Setting collector bias for BJT amplifiers in telecom line cards where gain stability over temperature is critical. IC Role / Device Role / Timing Role: Zener element in emitter-degeneration network compensating transistor VBE drift. Use Value: Positive TC (+0.038 %/°C) counterbalances negative VBE drift, reducing overall gain variation by >40% vs. uncompensated design. | Use Scenario: Regulating forward current through indicator LEDs in automotive dashboard modules with wide supply range (9–16 V). IC Role / Device Role / Timing Role: Shunt regulator establishing fixed voltage drop across series current-limiting resistor. Use Value: Enables consistent LED brightness across temperature and input voltage with only one passive component added. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5232B-1/TR | Same electrical specs but in DO-35 (axial-leaded) package; no metallurgical bond; RθJA = 500 °C/W | Requires through-hole assembly; unsuitable for high-density SMT layouts or high-reliability hermetic requirements | Select when legacy through-hole compatibility or lower cost outweighs SMT efficiency and radiation tolerance |
| BZX55C5V6-TR | 5.6 V, ±5%, 500 mW in DO-35; 15 Ω ZZT; max IR = 1 µA at 4.0 V; not radiation-hardened | Lacks MIL-PRF-19500 screening options and radiation hardness; optimized for consumer-grade cost-sensitive designs | Select for commercial applications where radiation immunity and extended temperature range are not required |
Compared with 1N5232B-1/TR and BZX55C5V6-TR, the 1N5232BUR-1/TR uniquely combines SMT-compatible DO-213AA packaging, metallurgical bonding, and documented radiation hardness - making it the only choice for space-constrained, high-reliability analog regulation where environmental resilience is mandatory.
Availability
1N5232BUR-1/TR is available at Aetrix Electronics and suitable for low-power voltage reference, overvoltage protection, and temperature-stable bias network applications requiring stable component supply across aerospace, industrial control, and medical electronics programs.
Supply support for 1N5232BUR-1/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 Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N52xxBUR-1 series belongs to Microsemi's legacy Zener regulator product line, engineered specifically for applications demanding hermetic sealing, extended temperature operation, and proven radiation tolerance in mission-critical systems.
FAQ
What is the Zener voltage tolerance of the 1N5232BUR-1/TR?
The 1N5232BUR-1/TR has a nominal Zener voltage of 5.6 V with a ±5% tolerance, indicated by the "B" suffix in the part number. This guarantees a regulation range of 5.32 V to 5.88 V at the specified test current of 20 mA, verified per Microsemi's T4-LDS-0232-1 datasheet.
Does the 1N5232BUR-1/TR support RoHS compliance?
Yes, the 1N5232BUR-1/TR is available in RoHS-compliant form with the "e3" suffix (e.g., 1N5232BUR-1/TR e3), featuring annealed matte-tin plating on end caps. RoHS compliance applies only to commercial-grade versions and is explicitly documented in Microsemi's nomenclature guide and packaging notes.
What is the maximum power dissipation rating for the 1N5232BUR-1/TR?
The 1N5232BUR-1/TR is rated for a steady-state power dissipation of 0.5 W. This rating assumes end cap temperature remains below 125 °C or ambient temperature stays under 50 °C when mounted on a standard FR4 PCB with 1 oz copper and the recommended footprint per the datasheet's thermal derating curve.
How does the temperature coefficient of the 1N5232BUR-1/TR affect its performance?
The 1N5232BUR-1/TR has a positive temperature coefficient of +0.038 %/°C, meaning its Zener voltage increases predictably with junction temperature. This behavior is leveraged in temperature-compensated reference designs, such as pairing with negative-TC devices to achieve net zero drift across operating ranges.
Is the 1N5232BUR-1/TR suitable for high-reliability or radiation-prone environments?
Yes, the 1N5232BUR-1/TR is inherently radiation-hardened per Microsemi MicroNote 050 and supports up-screening to MIL-PRF-19500 standards. Its metallurgically bonded glass DO-213AA package provides hermetic sealing and validated performance in total ionizing dose (TID) environments - confirmed in Microsemi's reliability documentation.
1N5232BUR-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- 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 ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N5232BUR-1/TR FAQ
1.How can I place an order for 1N5232BUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5232BUR-1/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 1N5232BUR-1/TR reliable?
The price and inventory of 1N5232BUR-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5232BUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N5232BUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5232BUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5232BUR-1/TR?
1N5232BUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5232BUR-1/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 1N5232BUR-1/TR?
For technical support, including 1N5232BUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5232BUR-1/TR requirements.
6.How does Aetrix verify that 1N5232BUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N5232BUR-1/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 1N5232BUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N5232BUR-1/TR?
All 1N5232BUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5232BUR-1/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 1N5232BUR-1/TR part is unused and in its original packaging.
Return procedure for 1N5232BUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5232BUR-1/TR Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
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BZX84C3V3LT1G
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MMSZ4682T1G
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MM5Z5V1ST1G
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