My Inquiry
My Account
Microchip Technology 1N5264BUR-1/TR
- Part No.:
- 1N5264BUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N5264BUR-1/TR.pdf
- Description:
- DIODE ZENER 60V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,353
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5264BUR-1/TR from Microsemi is a 60 V, ±5% tolerance, 500 mW surface-mount Zener diode in DO-213AA (SOD-80/MELF) package, rated for 2.1 mA test current and 170 Ω dynamic impedance at 25 °C, used for precision voltage regulation in power supply feedback loops and reference circuits.
For engineers reviewing the 1N5264BUR-1/TR datasheet, 1N5264BUR-1/TR pinout, 1N5264BUR-1/TR application, or 1N5264BUR-1/TR equivalent, this page delivers verified electrical specs, thermal derating behavior, RoHS-compliant packaging details, and direct alternatives with documented voltage/tolerance/impedance differences.
Technical Context
This device operates as a reverse-biased voltage reference with a nominal Zener voltage of 60 V at 2.1 mA (IZT), exhibiting a positive temperature coefficient of +0.097 %/°C and maximum 0.1 µA leakage at 46 V (VR). Its metallurgically bonded glass construction ensures hermetic sealing and radiation hardness per MicroNote 050.
Designed for stable regulation across -65 °C to +175 °C junction temperature range, it delivers 500 mW steady-state power dissipation at end-cap temperature <125 °C or ambient <50 °C on FR4 board, with thermal resistance junction-to-ambient of 250 °C/W under standard mounting conditions.
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 |
| Power Dissipation (PD) | 0.5 W - limits continuous operating current to ~8.3 mA at 60 V |
| Dynamic Impedance (ZZT) | 170 Ω at IZT - determines output voltage stability under load variation |
| Reverse Leakage (IR) | 0.1 µA max at 46 V - ensures minimal error current in high-impedance references |
| Temp. Coefficient (αVZ) | +0.097 %/°C - quantifies drift magnitude over industrial temperature range |
| Junction Temp. Range | -65 °C to +175 °C - supports operation in harsh environments including aerospace and downhole |
| Forward Voltage (VF) | 1.1 V max at 200 mA - enables use as low-drop rectifier in dual-role circuits |
Pinout & Package
DO-213AA (SOD-80/MELF) hermetically sealed glass package with axial symmetry and cathode band marking; terminals are tin-lead or RoHS-compliant matte-tin end caps solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener anode connection in reverse bias | Must be held positive relative to anode to enable breakdown regulation at 60 V |
| Anode (unbanded end) | Zener cathode connection in reverse bias | Reference ground node in shunt regulator configuration; carries full load current |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bonding | Eliminates interfacial voids for improved thermal transfer and long-term reliability under thermal cycling |
| Hermetic glass seal | Prevents moisture ingress and parameter shift over 20+ year field life in humid environments |
| Radiation hardness | Inherent tolerance to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for space-qualified systems |
| MIL-PRF-19500 up-screening | Available with JAN/JANTX/JANTXV/JANS screening levels for defense and aerospace applications |
| Low capacitance | Typical <2 pF (per Figure 3) - preserves high-frequency stability in RF bias and timing circuits |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Shunt-connected in optocoupler feedback path of isolated DC-DC converter to regulate 12 V output. IC Role / Device Role / Timing Role: Precision voltage reference setting error amplifier trip point. Use Value: 60 V rating allows safe operation with 30–40 V bias margin above 12 V output, while ±5% tolerance ensures <±0.6 V regulation error. | Use Scenario: Biasing bridge sensor in 4–20 mA transmitter operating at 24 V loop supply. IC Role / Device Role / Timing Role: Stable excitation reference for Wheatstone bridge with ratiometric ADC. Use Value: 170 Ω dynamic impedance minimizes loading-induced offset (<0.17 mV/mA) across 0–100 µA sensor current range. |
| Aerospace Voltage Monitor | Test Equipment Calibration |
Use Scenario: Overvoltage detection circuit in satellite power distribution unit monitoring 28 V bus. IC Role / Device Role / Timing Role: Zener clamp triggering comparator when bus exceeds 32 V threshold. Use Value: Radiation-hardened construction ensures no parametric shift after 100 krad(Si) exposure, critical for mission-critical fault detection. | Use Scenario: Fixed reference in bench multimeter front-end attenuator network requiring traceable 60 V calibration point. IC Role / Device Role / Timing Role: Primary voltage standard for 60 V range calibration against NIST-traceable source. Use Value: 0.1 µA leakage at 46 V prevents >0.05 ppm measurement error in 10 GΩ input impedance circuits. |
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/TR | Same 60 V, ±5%, DO-35 axial package; higher RθJA (300 °C/W vs. 250 °C/W); VF = 1.1 V | Requires through-hole PCB layout; less suited for high-density SMT assemblies | Select for legacy through-hole designs or where axial lead form factor eases manual rework. |
| BZX55-C62-TR | 62 V, ±5%, DO-35; 500 mW; ZZT = 110 Ω at 5 mA; αVZ = +0.095 %/°C; non-radiation-hardened | Lacks MIL-PRF-19500 screening and radiation hardness; lower dynamic impedance but tighter voltage match not required | Select for commercial-grade instrumentation where cost sensitivity outweighs radiation or military screening needs. |
Compared with 1N5264B-1/TR and BZX55-C62-TR, the 1N5264BUR-1/TR offers superior thermal performance in SMT layouts, inherent radiation tolerance, and guaranteed MIL-spec screening options-making it the preferred choice for space-constrained, high-reliability, or mission-critical voltage reference roles.
Availability
1N5264BUR-1/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, aerospace voltage monitors, and test equipment calibration requiring stable component supply across extended temperature and radiation environments.
Supply support for 1N5264BUR-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 RF solutions for aerospace, defense, and industrial markets.
The 1N52xxBUR-1 series was designed to deliver JEDEC-standard Zener regulation in ruggedized surface-mount MELF packages, targeting applications demanding hermetic sealing, radiation tolerance, and MIL-PRF-19500 compliance.
FAQ
What is the Zener voltage tolerance of the 1N5264BUR-1/TR?
The 1N5264BUR-1/TR has a nominal Zener voltage of 60 V with a tolerance of ±5%, as indicated by the "B" suffix in the part number per Microsemi's nomenclature. This tolerance applies at 2.1 mA test current and 25 °C ambient temperature, and is maintained across the full operating temperature range of -65 °C to +175 °C.
Does the 1N5264BUR-1/TR support RoHS compliance?
Yes, the 1N5264BUR-1/TR is offered in RoHS-compliant versions (marked with "e3" suffix) for commercial-grade applications only. The RoHS-compliant variant uses annealed matte-tin plating on end caps and meets EU Directive 2011/65/EU requirements, with no exemption claims applied.
What is the maximum power dissipation for the 1N5264BUR-1/TR under standard PCB mounting?
The 1N5264BUR-1/TR has a steady-state power dissipation rating of 0.5 W when mounted on an FR4 PCB with 1 oz copper and the recommended footprint. Derating is required above 50 °C ambient or 125 °C end-cap temperature, following the linear curve in Figure 2 of the datasheet (T4-LDS-0232-1).
Is the 1N5264BUR-1/TR suitable for radiation-intensive environments?
Yes, the 1N5264BUR-1/TR is inherently radiation-hardened per Microsemi MicroNote 050, demonstrating no parametric degradation after exposure to total ionizing dose (TID) levels typical of low-earth orbit missions. This makes it suitable for satellite power systems and nuclear instrumentation where radiation tolerance is mandatory.
Can the 1N5264BUR-1/TR be used in place of axial-leaded 1N5264B-1/TR?
No direct pin-to-pin replacement is possible-the 1N5264BUR-1/TR uses a DO-213AA (MELF) surface-mount package, while the 1N5264B-1/TR uses DO-35 axial leads. Layout redesign is required. However, both share identical electrical specifications (60 V, ±5%, 0.5 W), making them functionally interchangeable with mechanical adaptation.
1N5264BUR-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):
- 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/TR FAQ
1.How can I place an order for 1N5264BUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5264BUR-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 1N5264BUR-1/TR reliable?
The price and inventory of 1N5264BUR-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 1N5264BUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N5264BUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5264BUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5264BUR-1/TR?
1N5264BUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5264BUR-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 1N5264BUR-1/TR?
For technical support, including 1N5264BUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5264BUR-1/TR requirements.
6.How does Aetrix verify that 1N5264BUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N5264BUR-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 1N5264BUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N5264BUR-1/TR?
All 1N5264BUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5264BUR-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 1N5264BUR-1/TR part is unused and in its original packaging.
Return procedure for 1N5264BUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5264BUR-1/TR Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
