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Microchip Technology 1N5264BUR-1
- Part No.:
- 1N5264BUR-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N5264BUR-1.pdf
- Description:
- DIODE ZENER 60V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,529
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Product details
Overview
1N5264BUR-1 from Microsemi is a 60 V, 5% tolerance, 500 mW surface-mount Zener diode in a hermetically sealed DO-213AA (SOD80/MLL34) MELF glass package, designed for precision voltage regulation in space-constrained industrial and aerospace power supplies and reference circuits.
For engineers reviewing the 1N5264BUR-1 datasheet, 1N5264BUR-1 pinout, 1N5264BUR-1 application, or 1N5264BUR-1 equivalent, key selection criteria include its 60 V nominal Zener voltage at 2.1 mA test current, 170 Ω dynamic impedance at IZT, 0.1 µA max reverse leakage at 46 V, +0.097 %/°C temperature coefficient, and MIL-PRF-19500 up-screening capability.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased breakdown mode, with regulation stable across -65 °C to +175 °C junction temperature and requiring no external bias circuitry. Its metallurgically bonded glass construction ensures hermetic sealing and radiation hardness per MicroNote 050.
The 1N5264BUR-1 exhibits low capacitance (typ. <2 pF at 1 MHz), minimal ESD sensitivity (MIL-STD-750 Method 1020), and thermal resistance of 250 °C/W junction-to-ambient on FR4 board - enabling reliable operation in high-reliability analog monitoring and feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 60 V ±5% at 2.1 mA - defines precise regulation point for feedback networks and voltage clamping. |
| Power Dissipation PD | 0.5 W - supports continuous regulation in compact PCB layouts without forced cooling. |
| Dynamic Impedance ZZT | 170 Ω at IZT = 2.1 mA - determines output voltage stability under load variation. |
| Reverse Leakage IR | ≤0.1 µA at VR = 46 V - ensures negligible current draw in standby or high-impedance sensing paths. |
| Temp. Coefficient αVZ | +0.097 %/°C - quantifies voltage drift over temperature; critical for wide-range environmental operation. |
| Junction Temp. Range | -65 °C to +175 °C - enables deployment in extreme environments including avionics and downhole electronics. |
| Package | DO-213AA (SOD80/MLL34) MELF - provides hermeticity, mechanical robustness, and compatibility with automated SMT placement. |
Pinout & Package
DO-213AA (SOD80/MLL34) MELF glass package with axial symmetry and cathode band marking; terminals are end caps with tin-lead or RoHS-compliant matte-tin plating, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to higher potential in Zener mode; defines polarity for voltage reference or clamp function. |
| Anode (unbanded end) | Reference return node | Typically tied to system ground or feedback node; completes reverse-bias path for regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetically sealed glass construction | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments. |
| Metallurgical bonding | Ensures mechanical integrity and thermal stability under thermal cycling and vibration stress. |
| MIL-PRF-19500 up-screening option | Supports qualification for military/aerospace applications requiring enhanced reliability screening. |
| Radiation hardness (per MicroNote 050) | Validated performance in total ionizing dose (TID) environments typical of space systems. |
| Low capacitance (<2 pF) | Minimizes signal coupling and phase shift in high-frequency feedback or timing circuits. |
Applications
| Industrial Power Supply Reference | Aerospace Voltage Clamp |
|---|---|
Use Scenario: Precision 60 V reference in isolated DC-DC converter feedback loop for telecom power modules. IC Role / Device Role / Timing Role: Zener diode providing stable voltage setpoint for optocoupler-based error amplifier input. Use Value: Maintains ±1% output regulation across -40 °C to +85 °C ambient with <0.5% line/load transient deviation. | Use Scenario: Overvoltage protection on 28 V aircraft bus interface circuits exposed to load dump transients. IC Role / Device Role / Timing Role: Clamping element limiting surge voltage to ≤60 V during 100 V/100 ms transients. Use Value: Absorbs 0.5 W peak power without degradation, validated per MIL-STD-704F Section 4.5.2. |
| Downhole Sensor Biasing | Medical Instrument Calibration |
Use Scenario: Stable bias voltage source for MEMS pressure sensor front-end in oil/gas well logging tools. IC Role / Device Role / Timing Role: Voltage reference for ADC reference divider network operating at 150 °C junction temperature. Use Value: Delivers <10 ppm/°C effective drift over full range due to +0.097 %/°C TC and low thermal resistance. | Use Scenario: Calibration reference in portable ECG amplifier design requiring traceable 60 V source for gain verification. IC Role / Device Role / Timing Role: Primary Zener standard in self-test circuit verifying analog front-end linearity. Use Value: Enables NIST-traceable calibration with 0.1 µA leakage ensuring <0.001% measurement error contribution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5264B-1 (DO-35) | Axial-leaded DO-35 package; identical electrical specs but higher RθJA (300 °C/W vs. 250 °C/W). | Suitable for through-hole prototyping or legacy board rework; not compatible with SMT production lines. | Select when manual assembly or thermal derating margin >10% is available. |
| BZX55C62 (DO-35) | 62 V nominal, ±5%, 500 mW, but only commercial-grade; no MIL-PRF-19500 screening or radiation hardening. | Limited to non-critical industrial applications; lacks hermetic seal and extended temperature validation. | Choose only for cost-sensitive consumer designs where reliability and environmental robustness are secondary. |
Compared with 1N5264B-1 and BZX55C62, the 1N5264BUR-1 uniquely combines SMT compatibility, hermetic DO-213AA packaging, MIL-PRF-19500 up-screening eligibility, and radiation hardness - making it the sole option for high-reliability embedded systems requiring all four attributes.
Availability
1N5264BUR-1 is available at Aetrix Electronics and suitable for industrial power supplies, aerospace avionics interfaces, and downhole instrumentation requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for 1N5264BUR-1 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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N52xxBUR-1 series was developed to deliver JEDEC-standard Zener regulation in hermetic surface-mount form, targeting applications demanding radiation tolerance, extended temperature operation, and MIL-spec screening.
FAQ
What is the Zener voltage tolerance for 1N5264BUR-1?
The 1N5264BUR-1 has a nominal Zener voltage of 60 V with a ±5% tolerance, indicated by the "B" suffix in the part number per Microsemi's nomenclature. This means the actual measured VZ at 2.1 mA test current falls between 57 V and 63 V at 25 °C, verified per the Electrical Characteristics table on page 3 of T4-LDS-0232-1 Rev. 1.
Does 1N5264BUR-1 support MIL-PRF-19500 screening?
Yes, 1N5264BUR-1 supports up-screening in reference to MIL-PRF-19500, as explicitly stated in the Features section of the datasheet. Screening options depend on reliability level suffix (e.g., MQ, MX, MV, MSP); the base "UR-1" variant is commercial-grade but qualified for MIL-PRF-19500 upgrade upon request and additional testing.
What is the maximum reverse leakage current for 1N5264BUR-1?
The maximum reverse leakage current for 1N5264BUR-1 is 0.1 µA at VR = 46 V, as specified in the Electrical Characteristics table. This value is measured at 25 °C and reflects the device's ability to maintain high-impedance blocking behavior below its Zener knee, critical for low-power reference applications.
Is 1N5264BUR-1 RoHS compliant?
Yes, RoHS-compliant versions of 1N5264BUR-1 are available for commercial-grade use only, marked with the "e3" suffix (e.g., 1N5264BUR-1e3). The RoHS compliance applies to terminal plating (annealed matte-tin) and aligns with EU Directive 2011/65/EU, as noted in the Features section and Part Nomenclature table.
What package type does 1N5264BUR-1 use?
1N5264BUR-1 uses the DO-213AA package, also known as SOD80 or MLL34, a metallurgically bonded glass MELF (Metal Electrode Leadless Face) surface-mount package. Its dimensions are 1.60–1.70 mm diameter and 3.30–3.70 mm length, with cathode band marking and end-cap terminations.
1N5264BUR-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 60 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 46 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
1N5264BUR-1 FAQ
1.How can I place an order for 1N5264BUR-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5264BUR-1 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 1N5264BUR-1 reliable?
The price and inventory of 1N5264BUR-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5264BUR-1 is usually 5 days.
3.What payment methods are accepted for 1N5264BUR-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5264BUR-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5264BUR-1?
1N5264BUR-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5264BUR-1 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 1N5264BUR-1?
For technical support, including 1N5264BUR-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5264BUR-1 requirements.
6.How does Aetrix verify that 1N5264BUR-1 is sourced from the original manufacturer or authorized distributors?
All 1N5264BUR-1 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 1N5264BUR-1 meets industry standards.
7.What is the process for return or replacement of 1N5264BUR-1?
All 1N5264BUR-1 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5264BUR-1, 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 1N5264BUR-1 part is unused and in its original packaging.
Return procedure for 1N5264BUR-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5264BUR-1 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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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
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