My Inquiry
My Account
Microchip Technology 1N4567AUR-1/TR
- Part No.:
- 1N4567AUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4567AUR-1/TR.pdf
- Description:
- DIODE ZENER 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:91
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N4567AUR-1/TR from Microsemi is a temperature-compensated Zener reference diode in DO-213AA (MELF) glass package, rated for 0.5 mA test current, ±0.002 %/°C temperature coefficient, 10 mV maximum voltage drift over –55°C to +100°C, and 200 Ω dynamic impedance - used in precision voltage references for aerospace instrumentation and calibration equipment.
For engineers reviewing the 1N4567AUR-1/TR datasheet, 1N4567AUR-1/TR pinout, 1N4567AUR-1/TR application, or 1N4567AUR-1/TR equivalent, key selection criteria include low TC stability across military temperature range, hermetic MELF packaging for reliability, and tight Zener voltage tolerance under low-current bias conditions.
Technical Context
This device implements metallurgically bonded, double-plug construction to minimize thermal hysteresis and achieve ultra-low temperature coefficient. It operates exclusively in reverse-biased Zener breakdown mode with specified test current of 0.5 mA and supports stable regulation only within its defined temperature range (–55°C to +100°C).
The DO-213AA hermetically sealed glass package provides moisture resistance and long-term parameter stability, while the axial coefficient of expansion (+6 ppm/°C) requires matched PCB substrate selection to avoid mechanical stress-induced parameter shift during thermal cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | Specified at 0.5 mA; exact value depends on variant suffix - critical for absolute reference accuracy in metrology-grade circuits |
| Temp Coefficient | ±0.002 %/°C over –55°C to +100°C - enables sub-10 ppm/°C total drift in compensated designs |
| Zener Impedance | 200 Ω max at 0.5 mA - limits AC ripple rejection and load regulation sensitivity |
| Voltage Stability | ≤10 mV max change across full temperature range - verified per JEDEC 5, not typical or average |
| Power Dissipation | 500 mW @ +50°C, derated 4 mW/°C above - constrains usable current in high-ambient environments |
| Package | DO-213AA (MELF/SOD-80/LL34) - hermetic glass, leadless surface-mount, axial symmetry |
Pinout & Package
DO-213AA (MELF) glass package: cylindrical, leadless, bidirectional axial terminals; cathode identified by single black band; no discrete pins - soldered directly to pads with symmetric footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-bias reference node | Connected to system ground or lower-potential rail; defines reference polarity |
| Cathode | Zener output node | Banded end; supplies stable Zener voltage referenced to anode; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Temperature compensation | Double-plug metallurgical construction achieves ±0.002 %/°C TC - eliminates need for external compensation networks |
| Hermetic sealing | DO-213AA glass case prevents moisture ingress and parametric drift over 20+ year field life |
| Low-current operation | Validated at 0.5 mA - enables battery-powered or ultra-low-power reference designs without performance penalty |
| Military qualification | Qualified to MIL-PRF-19500/452 (JAN/JANTX/JANTXV/JANS) - certified for flight-critical avionics and defense systems |
Applications
| High-Accuracy ADC Reference | Aerospace Sensor Conditioning |
|---|---|
Use Scenario: Precision 24-bit analog-to-digital conversion in satellite telemetry systems requiring <10 ppm total error budget. IC Role / Device Role / Timing Role: Provides stable, low-drift voltage reference for SAR ADC internal reference buffer. Use Value: ±0.002 %/°C TC and ≤10 mV total drift ensure reference error remains below 0.0015% FS across orbital thermal cycles. | Use Scenario: Signal conditioning front-end for radiation-hardened pressure transducers in launch vehicle control systems. IC Role / Device Role / Timing Role: Supplies excitation and reference voltage for Wheatstone bridge amplification chain. Use Value: Hermetic MELF package and –55°C to +100°C stability guarantee calibration integrity during ascent and re-entry thermal transients. |
| Calibration Equipment Reference | Nuclear Instrumentation Bias Supply |
Use Scenario: Primary voltage standard in portable multimeter calibration labs operating across commercial and extended temperature ranges. IC Role / Device Role / Timing Role: Serves as traceable Zener reference in automated calibration fixtures with auto-ranging feedback loops. Use Value: 0.5 mA test current compatibility allows direct integration into low-power calibration ICs without external gain stages. | Use Scenario: High-stability bias supply for photomultiplier tube (PMT) gain control in reactor monitoring detectors. IC Role / Device Role / Timing Role: Generates ultra-stable negative bias rail for PMT dynode chain using inverted configuration. Use Value: 200 Ω Zener impedance ensures minimal noise coupling into sensitive detector signal paths at 1–10 kHz bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CDLL4567A | Same Zener voltage grade and TC spec, but packaged in ceramic LL34 instead of glass DO-213AA | Higher thermal shock resistance; slightly higher parasitic capacitance | Preferred where board-level thermal cycling exceeds 1000 cycles or humidity exposure is extreme |
| 1N4567AUR-1 | Identical electrical specs and DO-213AA package; differs only in tape-and-reel packaging (TR vs. bulk) | No functional difference - same die, same test conditions, same qualification | Select when automated SMT placement requires reel format; identical performance and reliability |
Compared with CDLL4567A and 1N4567AUR-1, the 1N4567AUR-1/TR offers identical Zener characteristics and hermetic reliability in tape-and-reel form factor optimized for high-volume automated assembly, while CDLL4567A trades glass seal integrity for enhanced mechanical ruggedness in ceramic housing.
Availability
1N4567AUR-1/TR is available at Aetrix Electronics and suitable for aerospace instrumentation, nuclear sensor biasing, and metrology-grade calibration equipment requiring stable component supply under extended temperature and long-lifecycle conditions.
Supply support for 1N4567AUR-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 (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability, radiation-tolerant, and precision analog components for defense, aerospace, and industrial markets.
The 1N4567AUR-1/TR belongs to Microsemi's MIL-qualified temperature-compensated Zener reference family, designed specifically for applications demanding sub-10 ppm/°C stability and hermetic long-term calibration retention.
FAQ
What is the Zener test current specification for the 1N4567AUR-1/TR?
The 1N4567AUR-1/TR is characterized at a Zener test current (IZT) of 0.5 mA. This low-current rating enables use in ultra-low-power reference designs while maintaining its specified ±0.002 %/°C temperature coefficient and ≤10 mV voltage drift across –55°C to +100°C. All electrical parameters in the datasheet assume operation at this precise bias point.
Is the 1N4567AUR-1/TR compatible with lead-free reflow processes?
The 1N4567AUR-1/TR features tin/lead lead finish and is not qualified for Pb-free reflow. Its DO-213AA glass package has a maximum reflow peak temperature limit of 235°C, and exceeding this risks hermeticity loss. For RoHS-compliant designs, consult Microchip's qualified lead-free alternatives such as the CDLL4567A in LL34 ceramic package.
Does the 1N4567AUR-1/TR have a defined cathode marking?
Yes - the 1N4567AUR-1/TR uses a single black band on the glass body to identify the cathode terminal. Per datasheet polarity instruction, the diode must be operated with the banded (cathode) end held positive relative to the anode. This marking is laser-permanent and visible under 10× magnification for automated optical inspection.
What is the maximum power dissipation for the 1N4567AUR-1/TR at +100°C ambient?
At +100°C ambient, the 1N4567AUR-1/TR's power dissipation is derated from 500 mW (at +50°C) by 4 mW/°C × 50°C = 200 mW reduction, yielding a maximum allowable dissipation of 300 mW. Exceeding this risks thermal runaway and permanent TC degradation due to localized heating in the glass package.
How does the 1N4567AUR-1/TR differ from the non-A version (e.g., 1N4567UR-1/TR)?
The "A" suffix in 1N4567AUR-1/TR denotes extended temperature range qualification (–55°C to +100°C) and tighter voltage stability (≤20 mV drift vs. ≤48 mV for non-A), verified per JEDEC 5. The base 1N4567UR-1/TR is only rated for 0°C to +75°C operation and lacks military-grade screening - making the "A" version mandatory for aerospace and defense deployments.
1N4567AUR-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):
- -
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4567AUR-1/TR FAQ
1.How can I place an order for 1N4567AUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4567AUR-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 1N4567AUR-1/TR reliable?
The price and inventory of 1N4567AUR-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 1N4567AUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N4567AUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4567AUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4567AUR-1/TR?
1N4567AUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4567AUR-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 1N4567AUR-1/TR?
For technical support, including 1N4567AUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4567AUR-1/TR requirements.
6.How does Aetrix verify that 1N4567AUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N4567AUR-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 1N4567AUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N4567AUR-1/TR?
All 1N4567AUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4567AUR-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 1N4567AUR-1/TR part is unused and in its original packaging.
Return procedure for 1N4567AUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4567AUR-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…
