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Microchip Technology 1N4575AE3
- Part No.:
- 1N4575AE3
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4575AE3.pdf
- Description:
- DIODE ZENER 6.4V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,241
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Product details
Overview
1N4575AE3 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 stable voltage reference in precision instrumentation and military-grade analog circuits.
For engineers reviewing the 1N4575AE3 datasheet, 1N4575AE3 pinout, 1N4575AE3 application, or 1N4575AE3 equivalent, key selection criteria include its 6.4 V nominal Zener voltage with ±5% tolerance, low TC stability over wide temperature range, hermetic DO-7 packaging, and MIL-PRF-19500/452 qualification readiness via prefix/suffix options.
Technical Context
The 1N4575AE3 uses internal metallurgical bonding to achieve tight thermal coupling between complementary Zener and forward-biased junctions, enabling temperature compensation down to ±0.01%/°C. Its 6.4 V nominal voltage aligns with silicon bandgap reference fundamentals, minimizing curvature error across –55°C to +100°C.
Rated at 2.0 mA Zener test current (IZT), it operates below 30 mW to maintain optimal voltage-temperature stability. The device is polarity-sensitive-cathode band must be biased negative-and exhibits <2.0 µA reverse leakage at 3 V, supporting low-power reference designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4 V ±5% at 2.0 mA - defines primary reference level for calibration and feedback loops |
| Temperature Coefficient (αVZ) | ±0.01%/°C - ensures ≤0.77 mV/°C drift over operating range, critical for high-stability analog systems |
| Zener Test Current (IZT) | 2.0 mA - specified bias point for guaranteed VZ and TC performance; power dissipation <30 mW |
| Dynamic Impedance (ZZT) | 50 Ω at IZT - limits output voltage variation under load transients in regulated supplies |
| Max Reverse Current (IR) | 2.0 µA at 3 V - confirms low leakage for high-impedance reference node integrity |
| Operating Temperature | –65°C to +175°C - supports aerospace, downhole, and extended industrial environments |
| Package | DO-7 (DO-204AA) - hermetically sealed glass axial package with tin-lead leads per MIL-STD-750 |
Pinout & Package
DO-7 (DO-204AA) hermetically sealed glass package with axial leads; cathode identified by color band. Leads are tin-lead plated and solderable per MIL-STD-750 Method 2026. Weight: 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground reference node | Connected to circuit common; establishes reference potential baseline |
| Cathode (banded end) | Positive reference output | Biased positive relative to anode; delivers stable 6.4 V output under reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| Temperature-compensated Zener structure | Internal metallurgical bond enables ±0.01%/°C TC - reduces calibration drift in wide-temperature deployments |
| Hermetic DO-7 glass package | Sealed construction ensures long-term parameter stability and resistance to humidity/moisture ingress |
| MIL-PRF-19500/452 qualification path | Add JAN/JANTX/JANTXV prefix + "-1" suffix (e.g., JANTX1N4575A-1) for screened military-grade versions |
| Nonsensitive to ESD | Complies with MIL-STD-750 Method 1020 - eliminates need for external ESD protection in handling and assembly |
| Flexible mounting | Axial-leaded DO-7 allows through-hole PCB, socket, or chassis mount - supports legacy and ruggedized designs |
Applications
| High-Precision ADC Reference | Aerospace Power Supply Trim |
|---|---|
Use Scenario: Provides reference voltage for 16-bit+ successive-approximation ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Voltage reference source for ADC internal DAC and comparator stages. Use Value: ±0.01%/°C TC and 50 Ω impedance minimize code-width variation and integral nonlinearity over temperature. |
Use Scenario: Trims output voltage of DC-DC converters in satellite power management units. IC Role / Device Role / Timing Role: Precision shunt reference in error amplifier feedback loop. Use Value: –65°C to +175°C operation and hermetic DO-7 package ensure reliability in radiation-prone orbital environments. |
| Military Instrumentation Calibration | Downhole Oilfield Sensor Biasing |
Use Scenario: Serves as traceable voltage standard in portable multimeters and calibrators qualified to MIL-PRF-19500. IC Role / Device Role / Timing Role: Primary reference element in self-calibrating analog front ends. Use Value: JEDEC-registered 1N4575A series identity and optional JANTXV qualification support DoD compliance documentation. |
Use Scenario: Biases signal-conditioning circuitry in pressure/temperature sensors deployed in oil wellbores. IC Role / Device Role / Timing Role: Stable excitation source for Wheatstone bridge sensors under thermal stress. Use Value: 2.0 µA IR at 3 V and low TC preserve measurement accuracy despite extreme ambient gradients up to 175°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4575A | Same electrical specs but lacks E3 suffix - no specified lead finish compliance (e.g., RoHS exemption status) | Acceptable where commercial-grade lead plating suffices; not suitable for programs requiring MIL-STD-750-compliant tin-lead finish | Select 1N4575AE3 when full MIL-STD-750 Method 2026 solderability and traceable finish are required |
| 1N4574AE3 | Identical DO-7 package and finish, but 1.0 mA IZT and ±0.0005%/°C TC - tighter TC, lower bias current | Better for ultra-low-drift applications below 1 mA bias; requires redesign of bias network impedance | Choose 1N4574AE3 only if system-level TC budget demands <0.001%/°C and bias current can be reduced to 1.0 mA |
Compared with 1N4575AE3, the 1N4575A omits documented lead finish compliance, while the 1N4574AE3 trades higher TC tolerance for ultra-low drift at halved test current - neither is pin-compatible drop-in; both require validation of bias network and thermal layout.
Availability
1N4575AE3 is available at Aetrix Electronics and suitable for high-reliability instrumentation, aerospace power regulation, and military calibration equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 1N4575AE3 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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N4575AE3 belongs to Microsemi's legacy 1N4565–1N4584A-1 series of temperature-compensated Zener references, engineered for minimal voltage drift in mission-critical analog systems where long-term stability outweighs cost sensitivity.
FAQ
What is the Zener voltage tolerance of the 1N4575AE3?
The 1N4575AE3 has a nominal Zener voltage of 6.4 V with a tolerance of ±5%, measured at 2.0 mA test current and 25°C. This tolerance is inherent to the base part number; tighter tolerances (e.g., ±1%) require suffixes like "-1%" added to the order code, per Microsemi's datasheet note 1.
Is the 1N4575AE3 suitable for military applications?
Yes - the 1N4575AE3 is built on the MIL-PRF-19500/452-qualified 1N4565–1N4584A-1 platform. While the base 1N4575AE3 is commercial-grade, adding prefixes such as JANTX or JANTXV plus the "-1" suffix (e.g., JANTX1N4575AE3-1) yields fully screened military versions meeting environmental and reliability requirements.
What does the "E3" suffix indicate in 1N4575AE3?
The "E3" suffix on 1N4575AE3 specifies compliance with MIL-STD-750 Method 2026 for tin-lead plated leads - confirming solderability, finish thickness, and plating adhesion per military standards. It distinguishes this variant from the non-suffixed 1N4575A, which lacks documented finish compliance.
Can the 1N4575AE3 operate at 175°C continuously?
Yes - the 1N4575AE3 is rated for continuous operation from –65°C to +175°C per its maximum ratings table. However, for optimal voltage-temperature stability, Microsemi recommends limiting power dissipation to <30 mW, which typically requires derating IZT at elevated temperatures per thermal resistance guidelines in the datasheet.
How does the 1N4575AE3 differ from the 1N4575A?
The 1N4575AE3 and 1N4575A share identical electrical parameters and DO-7 packaging, but the E3 suffix certifies MIL-STD-750 Method 2026-compliant tin-lead plating. This ensures verified solderability and finish reliability - critical for high-assurance programs where lead finish traceability and process control are mandated.
1N4575AE3 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:
- ±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 FAQ
1.How can I place an order for 1N4575AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4575AE3 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 reliable?
The price and inventory of 1N4575AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4575AE3 is usually 5 days.
3.What payment methods are accepted for 1N4575AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4575AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4575AE3?
1N4575AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4575AE3 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?
For technical support, including 1N4575AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4575AE3 requirements.
6.How does Aetrix verify that 1N4575AE3 is sourced from the original manufacturer or authorized distributors?
All 1N4575AE3 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 meets industry standards.
7.What is the process for return or replacement of 1N4575AE3?
All 1N4575AE3 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4575AE3, 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 part is unused and in its original packaging.
Return procedure for 1N4575AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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