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Microchip Technology 1N4565AE3/TR
- Part No.:
- 1N4565AE3/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4565AE3/TR.pdf
- Description:
- DIODE ZENER 6.4V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,997
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Product details
Overview
1N4565AE3/TR from Microsemi is a 6.4 V temperature-compensated Zener reference diode in DO-7 (DO-204AA) glass axial-leaded package, rated for ±5% voltage tolerance, 0.5 mA Zener test current (IZT), and 0.01%/°C temperature coefficient (αVZ). It operates from –65°C to +175°C and delivers stable voltage reference in precision analog instrumentation.
For engineers reviewing the 1N4565AE3/TR datasheet, 1N4565AE3/TR pinout, 1N4565AE3/TR application, or 1N4565AE3/TR equivalent, key selection factors include its low TC (0.01%/°C), hermetic DO-7 packaging, MIL-PRF-19500/452 qualification readiness, and tight thermal stability over military-grade temperature ranges.
Technical Context
This device uses internal metallurgical bonding to achieve minimal voltage drift across temperature extremes. Its 6.4 V nominal Zener voltage is optimized for zero-TC operation at IZT = 0.5 mA, with dynamic impedance of 200 Ω and reverse leakage ≤2.0 µA at 3 V.
The 1N4565AE3/TR is part of the JEDEC-registered 1N4565–1N4584A series, where "A" denotes tighter voltage tolerance and "E3/TR" indicates tin-lead plating and tape-and-reel packaging per EIA-296. Polarity requires cathode band to be biased negative relative to anode.
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) | 0.01%/°C - ensures <0.64 mV/°C drift over 0 to +75°C operating range |
| Zener Test Current (IZT) | 0.5 mA - optimal bias point for achieving specified VZ and αVZ performance |
| Dynamic Impedance (ZZT) | 200 Ω @ IZT - limits output voltage variation under load current changes |
| Max Reverse Current (IR) | ≤2.0 µA @ 3 V - confirms low leakage for high-impedance reference node integrity |
| Operating Temperature | –65°C to +175°C - supports deployment in aerospace, downhole, and military systems |
| Power Dissipation | 500 mW @ TL = 25°C - enables robust thermal margin with derating above ambient |
Pinout & Package
DO-7 (DO-204AA) hermetically sealed glass axial-leaded package with tin-lead plated leads per MIL-STD-750 Method 2026; cathode identified by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground reference terminal | Connected to circuit common; reverse-biased operation requires this terminal to be more negative than cathode |
| Cathode | Positive reference output terminal | Banded end; supplies stable 6.4 V when reverse-biased at IZT = 0.5 mA |
Key Features
| Feature | Design Value |
|---|---|
| Temperature compensation | 0.01%/°C TC enables <±1.2 mV total drift over –55°C to +100°C operating range |
| Hermetic DO-7 packaging | Enables long-term reliability in high-humidity, corrosive, or vacuum environments without encapsulation |
| MIL-PRF-19500/452 readiness | Qualified to Class B (JANTX) with "-1" suffix - supports defense/aerospace BOM continuity |
| Nonsensitive to ESD | Complies with MIL-STD-750 Method 1020 - eliminates need for external ESD protection in handling |
| Tape-and-reel packaging | EIA-296 compliant - enables automated SMT placement despite axial-leaded form factor |
Applications
| High-Precision ADC Reference | Aerospace Power Monitor |
|---|---|
Use Scenario: Provides reference voltage for 16-bit SAR ADCs in satellite telemetry systems requiring <1 LSB error over temperature. IC Role / Device Role / Timing Role: Primary voltage reference source for analog front-end signal conditioning. Use Value: 0.01%/°C TC and –65°C to +175°C operation ensure <±0.5 LSB drift across orbital thermal cycles. |
Use Scenario: Stabilizes feedback loop in radiation-hardened DC-DC converters on launch vehicle avionics. IC Role / Device Role / Timing Role: Precision shunt reference in isolated voltage sensing networks. Use Value: Hermetic DO-7 construction and MIL-PRF-19500 compatibility support mission-critical reliability under vibration and thermal shock. |
| Downhole Oilfield Sensor | Military Data Acquisition |
Use Scenario: Supplies reference for pressure transducer signal chains in >150°C wellbore environments. IC Role / Device Role / Timing Role: High-temperature-stable Zener shunt in analog sensor interface PCBs. Use Value: Guaranteed operation to +175°C with <2 µA IR at 3 V prevents reference node loading in ultra-low-power sensor nodes. |
Use Scenario: Calibrates multichannel DAQ modules in field-deployable electronic warfare receivers. IC Role / Device Role / Timing Role: Traceable voltage standard for factory and field calibration routines. Use Value: ±5% initial tolerance and documented TC allow NIST-traceable recalibration intervals exceeding 10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4565A-1 | Includes MIL-PRF-19500/452 JANTX qualification and "-1" suffix; identical electrical specs | Required for DoD procurement; same DO-7 package but with extended traceability and screening | Select when compliance with MIL-PRF-19500 Class B is mandatory |
| 1N4570AE3/TR | Same 6.4 V ±5%, 0.5 mA IZT, and DO-7 package, but 0.01%/°C TC applies over –55°C to +100°C (vs. 0 to +75°C for 1N4565AE3/TR) | Better low-temperature stability; higher dynamic impedance (100 Ω vs. 200 Ω) improves regulation under varying loads | Prefer for wide-range industrial systems needing improved cold-start behavior |
Compared with 1N4565AE3/TR, 1N4565A-1 adds military qualification without electrical change, while 1N4570AE3/TR trades slightly higher impedance for broader TC validity range-enabling simpler thermal modeling in extended-temperature designs.
Availability
1N4565AE3/TR is available at Aetrix Electronics and suitable for high-reliability instrumentation, aerospace power monitoring, and downhole oilfield sensor applications requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for 1N4565AE3/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 military-grade analog components.
The 1N4565AE3/TR belongs to Microsemi's Scottsdale Division legacy Zener reference diode product line, engineered specifically for precision voltage references in harsh-environment systems where long-term stability and thermal immunity are critical.
FAQ
What is the Zener test current for 1N4565AE3/TR?
The 1N4565AE3/TR is specified at a Zener test current (IZT) of 0.5 mA. This current level is required to achieve the nominal 6.4 V Zener voltage and the stated 0.01%/°C temperature coefficient. Operating significantly above or below this current will increase dynamic impedance and degrade TC performance, so biasing circuits must maintain IZT within ±10% for datasheet-compliant operation of the 1N4565AE3/TR.
Does 1N4565AE3/TR meet military specifications?
The 1N4565AE3/TR itself is not qualified to MIL-PRF-19500/452, but it is the commercial baseline for the JANTX-qualified variant 1N4565A-1. The "E3/TR" suffix indicates tin-lead plating and tape-and-reel packaging per EIA-296, not military screening. To meet military requirements, users must specify the "-1" suffix and appropriate prefix (e.g., JANTX1N4565A-1), which adds environmental testing and lot traceability-distinct from the 1N4565AE3/TR.
What does the "A" in 1N4565AE3/TR signify?
The "A" in 1N4565AE3/TR denotes a tighter initial voltage tolerance option within the 1N4565 series-specifically ±5% for the 6.4 V nominal rating. This distinguishes it from the base 1N4565 (±10%), and is confirmed in Microsemi's Electrical Characteristics table. All other parameters-including TC, IZT, and package-remain identical between 1N4565 and 1N4565A variants, making the "A" a precision grade identifier for the 1N4565AE3/TR.
Can 1N4565AE3/TR be used in surface-mount designs?
No, the 1N4565AE3/TR uses a DO-7 (DO-204AA) axial-leaded glass package and is not a surface-mount device. However, Microsemi offers surface-mount equivalents such as the JANTX1N4569AUR-1 in DO-213AA for SMT-compatible implementations. The "TR" suffix on 1N4565AE3/TR refers only to tape-and-reel packaging for automated axial insertion-not SMT compatibility-so board layout must accommodate through-hole mounting for the 1N4565AE3/TR.
What is the maximum power dissipation for 1N4565AE3/TR?
The 1N4565AE3/TR has a maximum DC power dissipation of 500 mW at lead temperature (TL) = 25°C. However, the datasheet explicitly recommends operating below 30 mW for optimum voltage-temperature stability. At IZT = 0.5 mA and VZ = 6.4 V, power dissipation is ~3.2 mW-well within the low-power zone. Exceeding 30 mW risks increased self-heating and TC deviation, so thermal design must ensure the 1N4565AE3/TR remains near ambient temperature during operation.
1N4565AE3/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):
- 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)
1N4565AE3/TR FAQ
1.How can I place an order for 1N4565AE3/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4565AE3/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 1N4565AE3/TR reliable?
The price and inventory of 1N4565AE3/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4565AE3/TR is usually 5 days.
3.What payment methods are accepted for 1N4565AE3/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4565AE3/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4565AE3/TR?
1N4565AE3/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4565AE3/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 1N4565AE3/TR?
For technical support, including 1N4565AE3/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4565AE3/TR requirements.
6.How does Aetrix verify that 1N4565AE3/TR is sourced from the original manufacturer or authorized distributors?
All 1N4565AE3/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 1N4565AE3/TR meets industry standards.
7.What is the process for return or replacement of 1N4565AE3/TR?
All 1N4565AE3/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4565AE3/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 1N4565AE3/TR part is unused and in its original packaging.
Return procedure for 1N4565AE3/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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