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Microchip Technology 1N4569/TR
- Part No.:
- 1N4569/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AA, DO-7, Axial
- Datasheet:
-
1N4569/TR.pdf
- Description:
- DIODE ZENER 6.4V 500MW DO7
- Quantity:
- Payment:
- Shipping:
Inventory:2,754
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Product details
Overview
1N4569/TR from Microsemi is a 6.4 V temperature-compensated Zener reference diode in DO-7 (DO-204AA) glass axial-leaded package, rated for 0.5 mA test current, ±0.0005 %/°C temperature coefficient, 200 Ω dynamic impedance, and operation from –65 °C to +175 °C. It delivers ultra-stable voltage reference in precision instrumentation requiring minimal drift over temperature.
For engineers reviewing the 1N4569/TR datasheet, 1N4569/TR pinout, 1N4569/TR application, or 1N4569/TR equivalent, key selection criteria include its 0.0005 %/°C TC, hermetic DO-7 packaging, MIL-PRF-19500/452 qualification path, and tight 6.4 V ±5% nominal tolerance - critical for high-reliability analog reference design.
Technical Context
This device belongs to Microsemi's zero-temperature-coefficient Zener family optimized for ultra-low drift voltage references. Its 6.4 V nominal Zener voltage leverages silicon bandgap and Zener breakdown cancellation to achieve <0.0005 %/°C TC across 0 to +75 °C.
It operates at 0.5 mA Zener test current (IZT), with 200 Ω dynamic impedance (ZZT) measured at 25 °C using 0.75 mA AC rms superimposed on 7.5 mA DC bias. Reverse leakage is ≤2 µA at 3 V, and maximum power dissipation is 500 mW at 25 °C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.4 V ±5% - stable reference point for calibration and feedback loops |
| Temperature Coefficient | ±0.0005 %/°C - enables sub-10 ppm/°C drift in 0 to +75 °C range |
| Zener Test Current (IZT) | 0.5 mA - specified operating point for guaranteed voltage and TC performance |
| Dynamic Impedance (ZZT) | 200 Ω - low AC impedance ensures minimal output perturbation under varying load |
| Max Reverse Current (IR) | ≤2 µA @ 3 V - confirms low leakage for high-impedance reference node integrity |
| Operating Temperature Range | –65 °C to +175 °C - supports aerospace, downhole, and military environments |
| Package | DO-7 (DO-204AA) - hermetically sealed glass axial package with tin-lead leads |
Pinout & Package
DO-7 (DO-204AA) is a hermetically sealed glass axial-leaded package with cathode band marking. Leads are tin-lead plated per MIL-STD-750 Method 2026. Polarity requires banded (cathode) end to be positive relative to anode for proper Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground return | Connected to circuit common; reverse-biased configuration requires this terminal at lower potential |
| Cathode (banded end) | Stable reference output | Provides regulated 6.4 V when reverse-biased; must be held at higher potential than anode |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low temperature coefficient | ±0.0005 %/°C enables <0.03 mV/°C drift - essential for metrology-grade references |
| Hermetic DO-7 packaging | Sealed glass construction ensures long-term stability and moisture immunity in harsh environments |
| MIL-PRF-19500/452 qualification path | Add JAN/JANTX/JANTXV prefix + "-1" suffix (e.g., JANTX1N4569A-1) for screened military-grade variants |
| Nonsensitive to ESD | Complies with MIL-STD-750 Method 1020 - eliminates need for handling precautions in assembly |
| Tape-and-reel option | "TR" suffix denotes EIA-296 compliant packaging - supports automated SMT placement of axial devices via carrier tape |
Applications
| High-Precision ADC Reference | Aerospace Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing reference voltage for 16-bit+ successive-approximation ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Primary voltage reference source establishing full-scale input range accuracy. Use Value: ±0.0005 %/°C TC ensures <±0.5 LSB drift over 0–75 °C, preserving ENOB in precision measurement. |
Use Scenario: Biasing and calibrating RTD and strain gauge bridges in flight control sensors. IC Role / Device Role / Timing Role: Stable excitation reference for ratiometric bridge measurements. Use Value: Hermetic DO-7 package and –65 °C to +175 °C rating support operation in avionics bays and engine compartments. |
| Downhole Oilfield Instrumentation | Military Power Supply Trim |
Use Scenario: Voltage reference in MWD/LWD tools exposed to >150 °C wellbore temperatures. IC Role / Device Role / Timing Role: Core reference element in closed-loop regulation of downhole telemetry power rails. Use Value: Guaranteed operation up to +175 °C with <0.03 mV/°C drift maintains calibration integrity during extended logging runs. |
Use Scenario: Fine-trimming output voltage of radiation-hardened DC-DC converters in satellite power systems. IC Role / Device Role / Timing Role: Precision shunt reference in feedback divider network. Use Value: MIL-PRF-19500/452 qualification path (via JANTXV prefix) enables direct integration into space-grade BOMs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4574A/TR | Same 6.4 V nominal, same 0.0005 %/°C TC, but rated for 1.0 mA IZT instead of 0.5 mA | Higher test current improves noise immunity in noisy power supply environments | Select 1N4574A/TR when circuit bias allows ≥1 mA Zener current and lower noise is prioritized |
| LM399H | Monolithic buried-Zener IC with 6.95 V output, 0.3 ppm/°C TC, internal heater, and 10 mA operating current | Requires external heater control and higher power; not drop-in compatible | Choose LM399H only when sub-ppm/°C stability justifies added complexity and board area |
Compared with 1N4569/TR, 1N4574A/TR offers identical TC and voltage but higher IZT for improved PSRR, while LM399H provides superior TC at the cost of integration complexity and power overhead - making 1N4569/TR optimal for simple, low-power, high-temp axial-ref designs.
Availability
1N4569/TR is available at Aetrix Electronics and suitable for high-reliability instrumentation, aerospace sensor conditioning, and downhole electronics requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1N4569/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 analog, RF, and radiation-hardened components for defense, aerospace, and industrial markets.
The 1N4565–1N4584A series was engineered specifically for ultra-stable voltage referencing in mission-critical systems where long-term drift and wide-temperature operation are non-negotiable design constraints.
FAQ
What is the Zener test current for 1N4569/TR?
The 1N4569/TR is specified at a Zener test current (IZT) of 0.5 mA. This current level is used to guarantee its 6.4 V nominal voltage and ±0.0005 %/°C temperature coefficient. Operating significantly above or below this value may increase dynamic impedance or degrade TC performance, so bias networks should target 0.5 mA ±10% for optimal stability.
Does 1N4569/TR have military qualification?
Yes - the base 1N4569/TR is commercially qualified, but it supports MIL-PRF-19500/452 qualification by adding appropriate prefixes and suffixes: e.g., JANTX1N4569A-1. These variants undergo screening for vibration, thermal shock, and lot acceptance testing per military standards, while retaining identical electrical specs and DO-7 packaging.
What does the "TR" suffix mean in 1N4569/TR?
The "TR" suffix in 1N4569/TR indicates tape-and-reel packaging per EIA-296 standard. This format enables automated placement of the axial DO-7 device using carrier tape feeders, supporting high-volume manufacturing without manual handling. The "TR" version contains no electrical or reliability differences versus bulk-packaged 1N4569.
Can 1N4569/TR replace 1N4568/TR in an existing design?
No - 1N4569/TR has a temperature coefficient of ±0.0005 %/°C, while 1N4568/TR is rated at ±0.001 %/°C. Though both share 6.4 V nominal voltage and 0.5 mA IZT, the 2× tighter TC of 1N4569/TR reflects different internal compensation and cannot be assumed interchangeable without re-characterizing system-level drift performance across temperature.
Is 1N4569/TR sensitive to electrostatic discharge (ESD)?
No - 1N4569/TR is nonsensitive to ESD per MIL-STD-750 Method 1020. Its DO-7 glass package and metallurgical construction eliminate the need for special ESD handling procedures during PCB assembly or handling, simplifying manufacturing for high-reliability lines.
1N4569/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AA, DO-7, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.4 V
- Tolerance:
- ±5%
- 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:
- Through Hole
- Supplier Device Package:
- DO-7
1N4569/TR FAQ
1.How can I place an order for 1N4569/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4569/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 1N4569/TR reliable?
The price and inventory of 1N4569/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4569/TR is usually 5 days.
3.What payment methods are accepted for 1N4569/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4569/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4569/TR?
1N4569/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4569/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 1N4569/TR?
For technical support, including 1N4569/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4569/TR requirements.
6.How does Aetrix verify that 1N4569/TR is sourced from the original manufacturer or authorized distributors?
All 1N4569/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 1N4569/TR meets industry standards.
7.What is the process for return or replacement of 1N4569/TR?
All 1N4569/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4569/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 1N4569/TR part is unused and in its original packaging.
Return procedure for 1N4569/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4569/TR 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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Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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