My Inquiry
My Account
Microchip Technology 1N4569A-1E3
- Part No.:
- 1N4569A-1E3
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4569A-1E3.pdf
- Description:
- DIODE ZENER 6.4V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,581
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N4569A-1E3 from Microsemi is a 6.4 V temperature-compensated Zener reference diode in DO-7 (DO-204AA) glass axial package, rated for 0.5 mA test current, ±0.0005%/°C temperature coefficient, 200 Ω dynamic impedance, and operating across –65°C to +175°C. It delivers ultra-stable voltage reference for precision instrumentation requiring minimal drift over wide temperature ranges.
For engineers reviewing the 1N4569A-1E3 datasheet, 1N4569A-1E3 pinout, 1N4569A-1E3 application, or 1N4569A-1E3 equivalent, key selection criteria include its 0.0005%/°C TC, 6.4 V nominal Zener voltage with ±5% tolerance, DO-7 hermetic glass package, 500 mW power dissipation rating, and MIL-PRF-19500/452 qualification readiness via -1 suffix variants.
Technical Context
This device belongs to Microsemi's zero-temperature-coefficient Zener family optimized for high-stability voltage references. Its 6.4 V nominal Zener voltage leverages silicon junction characteristics near the crossover point where positive and negative TC components cancel, achieving ultra-low drift.
The 1N4569A-1E3 is specified at IZT = 0.5 mA, with dynamic impedance ZZT = 200 Ω and reverse current IR ≤ 2.0 µA at 3 V. It operates within –65°C to +175°C ambient, with hermetically sealed glass construction ensuring long-term stability and radiation hardness readiness.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4 V ±5% at IZT = 0.5 mA - defines primary reference accuracy under standard test conditions |
| Temperature Coefficient (αVZ) | ±0.0005%/°C - enables <0.04 mV/°C drift over 0 to +75°C, critical for metrology-grade references |
| Zener Test Current (IZT) | 0.5 mA - optimal bias point for achieving specified TC and impedance; operation outside this degrades stability |
| Dynamic Impedance (ZZT) | 200 Ω at IZT = 0.5 mA - determines load regulation sensitivity; lower values improve rejection of current variations |
| Max Reverse Current (IR) | ≤2.0 µA at 3 V - ensures negligible leakage error in high-impedance reference divider networks |
| Operating Temperature Range | –65°C to +175°C - supports aerospace, downhole, and military systems requiring extreme environmental resilience |
| Power Dissipation | 500 mW @ TL = 25°C - sets maximum safe continuous power; derating required above ambient |
Pinout & Package
Package: DO-7 (DO-204AA), hermetically sealed glass axial-leaded case with tin-lead plated leads per MIL-STD-750 Method 2026. Cathode identified by band; operated with banded end positive.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes reference potential baseline for downstream analog stages |
| Cathode | Stable output voltage node | Delivers regulated 6.4 V when reverse-biased; must be held >6.4 V relative to anode for conduction |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low TC | ±0.0005%/°C enables sub-0.1 mV total drift over industrial temperature range - eliminates need for external compensation |
| Hermetic DO-7 package | Sealed glass construction prevents moisture ingress and parametric shift over decades - qualified for space-grade longevity |
| MIL-PRF-19500/452 readiness | Base part supports JAN/JANTX/JANTXV qualification with -1 suffix - meets screening, testing, and traceability requirements for defense programs |
| Nonsensitive to ESD | Complies with MIL-STD-750 Method 1020 - withstands handling without protection circuits, reducing BOM count in ruggedized designs |
Applications
| High-Accuracy ADC Reference | Aerospace Sensor Signal Conditioning |
|---|---|
Use Scenario: Precision 24-bit analog-to-digital conversion in data acquisition systems requiring <10 ppm linearity error. IC Role / Device Role / Timing Role: Primary voltage reference for SAR and delta-sigma ADCs, setting full-scale input range. Use Value: 0.0005%/°C TC ensures reference drift remains below 1 LSB over –40°C to +85°C, eliminating recalibration cycles. |
Use Scenario: Bridge sensor excitation and offset nulling in inertial measurement units (IMUs) deployed on launch vehicles. IC Role / Device Role / Timing Role: Stable excitation source and bias reference for Wheatstone bridge amplifiers and analog front-ends. Use Value: Hermetic DO-7 package and –65°C to +175°C rating enable operation during cryogenic staging and re-entry thermal transients. |
| Military Power Supply Trim | Downhole Oilfield Instrumentation |
Use Scenario: Fine-tuning of regulated DC outputs in field-deployable tactical radios and radar subsystems. IC Role / Device Role / Timing Role: Feedback reference element in isolated DC-DC converter error amplifiers. Use Value: Tight 6.4 V ±5% initial tolerance and low dynamic impedance ensure stable setpoint under varying load and input conditions. |
Use Scenario: Calibration reference in distributed temperature sensing (DTS) modules installed in oil/gas wellbores at 150°C+ ambient. IC Role / Device Role / Timing Role: On-board voltage standard for sensor self-test and gain calibration routines. Use Value: Verified operation up to +175°C allows direct mounting on PCBs adjacent to high-temp ASICs without thermal isolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4574A-1 | Same 6.4 V / 0.0005%/°C spec but rated at IZT = 1.0 mA; ZZT = 100 Ω | Better dynamic regulation at higher bias; requires 2× current vs. 1N4569A-1E3 | Select when circuit can supply 1 mA and lower impedance is prioritized over ultra-low bias current |
| LM399H | 2.5 V buried-Zener IC with oven-controlled TC ≈ 0.05 ppm/°C; requires 10 mA heater current | Higher absolute accuracy and lower TC, but needs external power, thermal mass, and PCB area | Select only when sub-ppm stability justifies added complexity, cost, and power overhead |
Compared with 1N4574A-1 and LM399H, the 1N4569A-1E3 provides the lowest power solution (0.5 mA) for ultra-stable 6.4 V referencing in size-constrained, high-reliability environments where ovenized performance is unnecessary.
Availability
1N4569A-1E3 is available at Aetrix Electronics and suitable for high-reliability instrumentation, aerospace avionics, and downhole oilfield electronics requiring stable component supply across extended product lifecycles.
Supply support for 1N4569A-1E3 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-hardened, and precision analog components for defense, aerospace, and industrial markets.
The 1N4569A-1E3 belongs to Microsemi's legacy 1N45xx series of temperature-compensated Zener references, engineered specifically for metrology-grade voltage stability in mission-critical systems where long-term drift and environmental resilience are non-negotiable.
FAQ
What is the Zener voltage tolerance of the 1N4569A-1E3?
The 1N4569A-1E3 has a nominal Zener voltage of 6.4 V with a tolerance of ±5%, measured at IZT = 0.5 mA and 25°C. Tighter tolerances (e.g., ±1%, ±2%) are available via custom ordering with suffixes like -1% or -2%, but the base 1N4569A-1E3 adheres to the JEDEC-standard ±5% specification.
Does the 1N4569A-1E3 require external temperature compensation?
No, the 1N4569A-1E3 does not require external temperature compensation. Its internal design achieves a temperature coefficient of ±0.0005%/°C, meaning it inherently cancels thermal drift across its specified operating range - a core feature of the 1N4565–1N4584A-1 series.
Can the 1N4569A-1E3 be used in military applications?
Yes, the 1N4569A-1E3 serves as the base part for MIL-PRF-19500/452 qualified versions. Adding prefixes such as JANTX or JANTXV and the -1 suffix (e.g., JANTX1N4569A-1) yields fully screened, tested, and documented military-grade variants compliant with defense procurement standards.
What is the maximum power dissipation for the 1N4569A-1E3?
The 1N4569A-1E3 has a maximum DC power dissipation of 500 mW at lead temperature (TL) = 25°C. For stable long-term operation, Microsemi recommends limiting power to <30 mW - achieved by biasing near IZT = 0.5 mA - to preserve voltage-temperature stability and avoid thermal runaway.
Is the 1N4569A-1E3 compatible with automated soldering processes?
Yes, the 1N4569A-1E3 supports standard automated soldering: its DO-7 package is rated for 260°C for 10 seconds maximum per MIL-STD-750 Method 2026. Leads are tin-lead plated and solderable using conventional wave or reflow profiles, with no special prebaking required.
1N4569A-1E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.4 V
- Tolerance:
- ±1%
- 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-204AH (DO-35)
1N4569A-1E3 FAQ
1.How can I place an order for 1N4569A-1E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4569A-1E3 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 1N4569A-1E3 reliable?
The price and inventory of 1N4569A-1E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4569A-1E3 is usually 5 days.
3.What payment methods are accepted for 1N4569A-1E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4569A-1E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4569A-1E3?
1N4569A-1E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4569A-1E3 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 1N4569A-1E3?
For technical support, including 1N4569A-1E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4569A-1E3 requirements.
6.How does Aetrix verify that 1N4569A-1E3 is sourced from the original manufacturer or authorized distributors?
All 1N4569A-1E3 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 1N4569A-1E3 meets industry standards.
7.What is the process for return or replacement of 1N4569A-1E3?
All 1N4569A-1E3 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4569A-1E3, 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 1N4569A-1E3 part is unused and in its original packaging.
Return procedure for 1N4569A-1E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4569A-1E3 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…
