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Microchip Technology 1N4575AE3/TR
- Part No.:
- 1N4575AE3/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4575AE3/TR.pdf
- Description:
- DIODE ZENER 6.4V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,115
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Product details
Overview
1N4575AE3/TR from Microsemi is a 6.4 V temperature-compensated Zener reference diode in DO-7 (DO-204AA) glass axial-leaded package, rated for 2.0 mA test current, ±0.01%/°C temperature coefficient, 50 Ω dynamic impedance, and operating across –65°C to +175°C. It delivers high-stability voltage reference for precision analog instrumentation.
For engineers reviewing the 1N4575AE3/TR datasheet, 1N4575AE3/TR pinout, 1N4575AE3/TR application, or 1N4575AE3/TR equivalent, key selection criteria include its 2.0 mA Zener test current, low 0.01%/°C TC, hermetic DO-7 packaging, MIL-PRF-19500/452 qualification readiness, and ESD immunity per MIL-STD-750 Method 1020.
Technical Context
This device belongs to Microsemi's zero-temperature-coefficient Zener series optimized for minimal voltage drift over temperature. Its 6.4 V nominal Zener voltage is achieved via internal metallurgical bonding and dual-junction compensation architecture.
The 1N4575AE3/TR operates at 2.0 mA IZT, delivering 50 Ω dynamic impedance and 2.0 µA reverse leakage at 3 V. It supports full military-grade thermal range (–65°C to +175°C) with hermetically sealed glass construction and tin-lead solderable leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 6.4 V ±5% at 2.0 mA - stable reference point for analog calibration circuits |
| Temp. Coefficient | ±0.01%/°C - ensures ≤0.75 mV/°C drift over 0 to +75°C operating range |
| Zener Test Current | 2.0 mA - optimal bias point for specified voltage accuracy and impedance |
| Dynamic Impedance | 50 Ω @ 2.0 mA - low AC impedance maintains reference stability under varying load |
| Max Reverse Current | 2.0 µA @ 3 V - confirms low leakage for high-impedance reference node integrity |
| Operating Temp. | –65°C to +175°C - suitable for aerospace, downhole, and extended-temperature industrial systems |
| Power Dissipation | 500 mW @ 25°C case - enables robust operation with derating above ambient |
Pinout & Package
Package: DO-7 (DO-204AA), hermetically sealed glass axial-leaded case with cathode band marking; leads are tin-lead plated and solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference diode cathode-connected terminal | Connected to circuit ground or lower potential; banded end is cathode |
| Cathode | Zener voltage output terminal | Banded end - must be held positive relative to anode to operate in reverse breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Temperature Compensation | ±0.01%/°C TC enables <1 mV total drift over 0–75°C - critical for metrology-grade references |
| Hermetic Glass Construction | DO-7 package provides long-term parameter stability and moisture resistance in harsh environments |
| MIL-PRF-19500/452 Readiness | Add JAN/JANTX/JANTXV prefix + "-1" suffix for qualified versions - supports defense/aerospace BOMs |
| ESD Immunity | Nonsensitive per MIL-STD-750 Method 1020 - eliminates need for external ESD protection in handling |
| Tape & Reel Packaging | "TR" suffix denotes EIA-296 compliant tape-and-reel - enables automated SMT-compatible axial placement |
Applications
| High-Precision ADC Reference | Aerospace Power Monitor |
|---|---|
Use Scenario: Provides stable 6.4 V reference for 16-bit+ successive-approximation ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Voltage reference source for analog front-end scaling and offset calibration. Use Value: ±0.01%/°C TC ensures <0.05% full-scale error contribution over temperature - meets MIL-STD-810G Class 2 requirements. |
Use Scenario: Used in satellite power subsystems to monitor bus voltage regulation against telemetry thresholds. IC Role / Device Role / Timing Role: Precision shunt reference for comparator-based overvoltage/undervoltage detection. Use Value: Hermetic DO-7 package and –65°C to +175°C rating support operation in radiation-hardened LEO platforms. |
| Downhole Sensor Calibration | Industrial Process Controller |
Use Scenario: Calibrates pressure and temperature transducers in oil/gas well logging tools exposed to >150°C ambient. IC Role / Device Role / Timing Role: Primary voltage reference for sensor signal conditioning ASICs. Use Value: Stable 6.4 V output at 2.0 mA ensures consistent gain/offset correction despite thermal cycling between surface and downhole conditions. |
Use Scenario: Supplies reference voltage for programmable logic controller (PLC) analog input modules requiring traceable calibration. IC Role / Device Role / Timing Role: Shunt reference for 4–20 mA loop transmitter DACs and isolation amplifiers. Use Value: 50 Ω dynamic impedance minimizes interaction with op-amp feedback networks - improves linearity to ±0.02% FS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4575A-1 | Same electrical specs but includes MIL-PRF-19500/452 JANTXV qualification and "-1" suffix; requires prefix change for ordering | Required for defense/aerospace programs needing certified screening and lot traceability | Select when compliance documentation, extended reliability testing, and controlled procurement are mandatory |
| LM399H | 2 ppm/°C TC, 6.95 V output, buried-Zener topology, TO-99 metal can; higher cost, active heater circuit required | Used where ultra-low drift (<10 ppm total) is needed - e.g., calibration standards, metrology labs | Choose only if sub-0.001%/°C stability is required; not drop-in due to different voltage, package, and biasing |
Compared with 1N4575AE3/TR, 1N4575A-1 adds military qualification without altering electrical behavior, while LM399H offers superior TC at the cost of complexity, power, and non-drop-in integration - making 1N4575AE3/TR optimal for ruggedized mid-precision industrial use.
Availability
1N4575AE3/TR is available at Aetrix Electronics and suitable for high-reliability instrumentation, aerospace power monitoring, and downhole sensor calibration requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 1N4575AE3/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 aerospace, defense, and industrial markets.
The 1N4575AE3/TR belongs to Microsemi's legacy Scottsdale Division zero-TC Zener reference diode family, engineered specifically for precision voltage referencing in extreme-temperature and mission-critical systems.
FAQ
What is the Zener test current for 1N4575AE3/TR?
The 1N4575AE3/TR is specified at a Zener test current (IZT) of 2.0 mA. This current level is used to measure its nominal 6.4 V Zener voltage and 50 Ω dynamic impedance. Operating at this current ensures optimal temperature coefficient performance and long-term stability. Deviations from 2.0 mA will alter both voltage output and TC behavior, as shown in the manufacturer's IZ-vs-ΔVZ curves.
Is 1N4575AE3/TR suitable for military applications?
Yes - the base 1N4575AE3/TR meets commercial specifications, but it can be ordered in fully qualified military versions by adding prefixes (JAN, JANTX, JANTXV) and the "-1" suffix, e.g., JANTXV1N4575A-1. These variants undergo screening per MIL-PRF-19500/452 and include full lot traceability, making them suitable for defense and space programs where reliability documentation is mandatory.
What does the "TR" suffix mean in 1N4575AE3/TR?
The "TR" suffix in 1N4575AE3/TR indicates tape-and-reel packaging per EIA-296 standard. This format supports automated axial-leaded component placement on PCBs and ensures consistent orientation (cathode band direction) during assembly. The "E3" denotes RoHS-compliant termination (matte tin plating), replacing legacy tin-lead finishes while maintaining solderability.
How does the temperature coefficient of 1N4575AE3/TR compare to other parts in the 1N45xx series?
The 1N4575AE3/TR has a temperature coefficient of ±0.01%/°C - identical to 1N4565, 1N4570, and 1N4580 variants. It is less precise than the 0.0005%/°C versions (e.g., 1N4569A, 1N4574A), but offers better stability than general-purpose Zeners (>0.1%/°C). Its 2.0 mA IZT makes it ideal for medium-current reference nodes where low impedance and moderate TC balance are required.
Can 1N4575AE3/TR replace a standard 6.2 V Zener diode in an existing design?
No - the 1N4575AE3/TR is a precision 6.4 V reference with tightly controlled TC and impedance, not a generic 6.2 V Zener. Substituting it for a 6.2 V part would shift system reference voltage by ~32 mV, potentially violating ADC full-scale or comparator threshold margins. Always verify voltage tolerance, TC, and dynamic impedance compatibility before replacement - 1N4575AE3/TR is intended for new designs requiring 6.4 V stability, not retrofits.
1N4575AE3/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.4 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 50 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)
1N4575AE3/TR FAQ
1.How can I place an order for 1N4575AE3/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4575AE3/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 1N4575AE3/TR reliable?
The price and inventory of 1N4575AE3/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4575AE3/TR is usually 5 days.
3.What payment methods are accepted for 1N4575AE3/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4575AE3/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4575AE3/TR?
1N4575AE3/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4575AE3/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 1N4575AE3/TR?
For technical support, including 1N4575AE3/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4575AE3/TR requirements.
6.How does Aetrix verify that 1N4575AE3/TR is sourced from the original manufacturer or authorized distributors?
All 1N4575AE3/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 1N4575AE3/TR meets industry standards.
7.What is the process for return or replacement of 1N4575AE3/TR?
All 1N4575AE3/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4575AE3/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 1N4575AE3/TR part is unused and in its original packaging.
Return procedure for 1N4575AE3/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4575AE3/TR Tags
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