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Microchip Technology 1N4565AUR-1/TR
- Part No.:
- 1N4565AUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4565AUR-1/TR.pdf
- Description:
- DIODE ZENER 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:161
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Product details
Overview
1N4565AUR-1/TR from Microsemi is a temperature-compensated Zener reference diode in DO-213AA (MELF) glass package, rated for 500 mW power dissipation at +50°C, with ±0.01%/°C temperature coefficient and 100 mV voltage stability over −55°C to +100°C, used in precision voltage references for aerospace instrumentation and military-grade power supply feedback loops.
For engineers reviewing the 1N4565AUR-1/TR datasheet, 1N4565AUR-1/TR pinout, 1N4565AUR-1/TR application, or 1N4565AUR-1/TR equivalent, key selection criteria include low-current operation (0.5 mA test current), hermetic glass sealing, MIL-PRF-19500/452 qualification, and metallurgically bonded double-plug construction for long-term stability under thermal cycling.
Technical Context
This device implements a dual-junction temperature-compensated Zener structure using metallurgically bonded double-plug construction to minimize voltage drift. It operates within a strict 0.5 mA test current range and maintains voltage stability of ≤100 mV across −55°C to +100°C per JEDEC Std. 5.
Zener impedance is measured as 200 Ω at 60 Hz with 10% AC ripple superimposed on DC test current, and reverse leakage is specified at 2 µA @ 3 VDC. Its axial coefficient of expansion (+6 ppm/°C) requires matched mounting surface COE for stress-sensitive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 6.2 V nominal, tightly regulated for precision reference applications |
| Test Current | 0.5 mA - defines operating point for voltage and tempco specs |
| Tempco | ±0.01 %/°C - enables stable reference over wide military temperature range |
| Zener Impedance | 200 Ω - limits AC ripple rejection capability at low bias current |
| Power Dissipation | 500 mW @ +50°C - derates linearly above ambient (4 mW/°C) |
| Operating Temp | −55°C to +175°C - supports high-reliability aerospace and defense environments |
| Reverse Leakage | 2 µA @ 3 VDC - ensures minimal error contribution in high-impedance reference nodes |
Pinout & Package
DO-213AA (MELF) hermetically sealed glass package with axial leads; cathode identified by band; lead finish: tin/lead; no discrete pins - two-terminal axial device.
Key Features
| Feature | Design Value |
|---|---|
| Temperature Compensation | Dual-junction design achieves ±0.01%/°C tempco for <100 mV drift over −55°C to +100°C |
| Hermetic Sealing | DO-213AA glass case prevents moisture ingress and ensures long-term parametric stability |
| MIL-PRF-19500/452 Qualification | Qualified to JAN, JANTX, JANTXV, and JANS levels for flight-critical and defense systems |
| Double-Plug Construction | Metallurgical bonding minimizes interfacial stress and improves thermal hysteresis performance |
Applications
| Aerospace ADC Reference | Military Power Supply Feedback |
|---|---|
Use Scenario: High-resolution analog-to-digital conversion in satellite telemetry systems requiring stable reference over orbital thermal cycles. IC Role / Device Role / Timing Role: Precision voltage reference for SAR ADCs and DACs in radiation-tolerant data acquisition units. Use Value: ±0.01%/°C tempco and hermetic packaging ensure ≤100 mV reference drift across −55°C to +100°C, preserving measurement accuracy. | Use Scenario: Feedback node in regulated DC-DC converters powering avionics subsystems in fighter aircraft. IC Role / Device Role / Timing Role: Zener-based voltage reference for error amplifiers in isolated flyback and forward converters. Use Value: 0.5 mA low-current operation enables compatibility with high-impedance optocoupler feedback paths while maintaining MIL-spec stability. |
| Strategic Radar Biasing | Nuclear Instrumentation Calibration |
Use Scenario: Bias stabilization for GaAs FET front-end amplifiers in ground-based phased-array radar receivers. IC Role / Device Role / Timing Role: Temperature-stable reference for gate bias networks ensuring consistent gain and noise figure across ambient extremes. Use Value: Metallurgically bonded double-plug construction suppresses thermal hysteresis, critical for repeatable RF performance after thermal shock. | Use Scenario: Calibration source in portable radiation survey meters requiring traceable, drift-free voltage standards. IC Role / Device Role / Timing Role: Primary reference element in portable NIST-traceable calibration circuits for ion chamber readouts. Use Value: Hermetic DO-213AA package and MIL-qualified process ensure 10+ year parametric stability without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CDLL4565A | Same electrical specs and DO-213AA package; identical tempco, Zz, and Vz tolerance | No MIL-PRF-19500/452 qualification; commercial-grade screening only | Select CDLL4565A only for non-military, cost-sensitive industrial designs where full MIL spec is not required |
| 1N4565AUR-1 | Same part number base but without "/TR" suffix - differs only in tape-and-reel packaging format | No functional or electrical difference; same die, same qualification, same reliability testing | 1N4565AUR-1/TR and 1N4565AUR-1 are electrically and mechanically identical; choose based on assembly line feed requirements |
Compared with CDLL4565A and 1N4565AUR-1, the 1N4565AUR-1/TR provides full MIL-PRF-19500/452 qualification in tape-and-reel format, enabling direct placement in automated SMT lines while meeting aerospace-level reliability and temperature stability requirements.
Availability
1N4565AUR-1/TR is available at Aetrix Electronics and suitable for aerospace instrumentation, military power supplies, strategic radar systems, and nuclear instrumentation requiring stable component supply with full traceability and extended lifecycle support.
Supply support for 1N4565AUR-1/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-hardened, and MIL-spec analog and mixed-signal components.
The 1N4565AUR-1/TR belongs to Microsemi's legacy CDLL/1N45xx family of temperature-compensated Zener references, designed specifically for precision voltage regulation in defense, space, and nuclear applications where long-term drift and thermal hysteresis must be minimized.
FAQ
What is the Zener voltage tolerance for 1N4565AUR-1/TR?
The 1N4565AUR-1/TR has a nominal Zener voltage of 6.2 V with a tolerance defined by its MIL-PRF-19500/452 qualification level - JANTXV grade specifies ±5% initial tolerance. This tolerance is verified during lot acceptance testing and applies at 0.5 mA test current and 25°C ambient.
Is 1N4565AUR-1/TR compatible with reflow soldering processes?
Yes, the 1N4565AUR-1/TR in DO-213AA glass package is qualified for standard lead-free reflow profiles per J-STD-020, with peak temperatures up to 260°C. Its hermetic glass construction and tin/lead lead finish ensure robust thermal cycling performance without cracking or seal degradation.
Does 1N4565AUR-1/TR require derating above +50°C?
Yes, the 1N4565AUR-1/TR must be derated at 4 mW/°C above +50°C ambient. At +100°C, maximum allowable power dissipation drops to 300 mW. This derating ensures junction temperature remains within the −65°C to +175°C operating limit and preserves long-term voltage stability.
What is the meaning of "AUR-1" in 1N4565AUR-1/TR?
The "AUR-1" suffix denotes Microsemi's proprietary packaging variant: "AU" indicates axial MELF configuration in DO-213AA case, "R" signifies hermetic glass sealing, and "-1" identifies the specific Zener voltage grade (6.2 V). The "/TR" further specifies tape-and-reel packaging for automated placement.
How does the double-plug construction improve performance of 1N4565AUR-1/TR?
The metallurgically bonded double-plug construction in the 1N4565AUR-1/TR reduces thermal stress at the silicon-glass interface, suppressing hysteresis and long-term drift. This architecture directly enables the ±0.01%/°C temperature coefficient and ≤100 mV voltage change over −55°C to +100°C, critical for mission-critical reference stability.
1N4565AUR-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- 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:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4565AUR-1/TR FAQ
1.How can I place an order for 1N4565AUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4565AUR-1/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 1N4565AUR-1/TR reliable?
The price and inventory of 1N4565AUR-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4565AUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N4565AUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4565AUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4565AUR-1/TR?
1N4565AUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4565AUR-1/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 1N4565AUR-1/TR?
For technical support, including 1N4565AUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4565AUR-1/TR requirements.
6.How does Aetrix verify that 1N4565AUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N4565AUR-1/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 1N4565AUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N4565AUR-1/TR?
All 1N4565AUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4565AUR-1/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 1N4565AUR-1/TR part is unused and in its original packaging.
Return procedure for 1N4565AUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4565AUR-1/TR Tags
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