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Microchip Technology 1N4615UR-1
- Part No.:
- 1N4615UR-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4615UR-1.pdf
- Description:
- DIODE ZENER 2V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,031
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Product details
Overview
1N4615UR-1 from Microsemi is a 500 mW surface-mount Zener diode in DO-213AA (SOD80) glass MELF package, rated for 2.0 V nominal Zener voltage at 250 mA test current, with ±5% tolerance, 1250 Ω dynamic impedance, and 2.5 µA maximum reverse leakage at 1.6 V. It delivers precision voltage regulation in high-reliability analog power supply rails and reference circuits.
For engineers reviewing the 1N4615UR-1 datasheet, 1N4615UR-1 pinout, 1N4615UR-1 application, or 1N4615UR-1 equivalent, this device supports low-noise (<1 µV/√Hz), hermetically sealed, radiation-hardened voltage reference design across military, aerospace, and industrial embedded systems requiring MIL-PRF-19500/435 qualification up to JANS level.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable output voltage under varying load and temperature conditions. Its metallurgically bonded construction ensures mechanical robustness and thermal stability, with junction-to-end-cap thermal resistance of 100 °C/W enabling reliable power dissipation on FR4 PCBs.
Designed for low-capacitance operation (typical <2 pF per Figure 3), it exhibits minimal signal coupling in high-frequency reference paths. The -0.075 %/°C temperature coefficient ensures predictable drift behavior over -65 °C to +175 °C operating range, supporting wide-temperature deployment without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 2.0 V at 250 mA - defines precise regulation point for low-voltage biasing and reference generation |
| Power Dissipation (PM(AV)) | 500 mW - supports continuous regulation in compact SMT layouts with linear derating above 125 °C |
| Zener Impedance (ZZT) | 1250 Ω - indicates moderate AC impedance affecting regulation accuracy under dynamic load transients |
| Reverse Leakage (IR) | 2.5 µA max at 1.6 V - ensures minimal quiescent current draw in battery-sensitive or ultra-low-power circuits |
| Noise Density (ND) | 1 µV/√Hz - enables use in low-noise analog references where spectral purity impacts ADC/DAC performance |
| Temp. Coefficient (αVZ) | -0.075 %/°C - provides predictable negative drift for thermal compensation schemes in precision instrumentation |
| Junction Temp. Range | -65 °C to +175 °C - qualifies for extreme-environment applications including downhole, avionics, and space-grade electronics |
Pinout & Package
DO-213AA (SOD80) glass MELF package: hermetically sealed, cylindrical surface-mount case with metallurgically bonded internal structure; cathode indicated by single band; terminals are axial, non-polarized metal end caps; weight ≈ 0.04 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward conduction terminal / Zener reference ground node | Connected to circuit common or lower-potential rail; must be held ≤1.1 V below cathode during forward bias |
| Cathode (banded end) | Zener regulation output / voltage reference node | Provides stable 2.0 V output when reverse-biased; polarity must be observed to avoid forward conduction failure |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF packaging | Enables long-term reliability in humid, corrosive, or high-vibration environments without conformal coating |
| MIL-PRF-19500/435 qualification | Validated screening levels (JAN/JANTX/JANTXV/JANS) ensure traceable lot-level reliability for defense and space programs |
| Metallurgical bond construction | Eliminates wire bonds and interfacial delamination risks, improving thermal cycling endurance and power handling consistency |
| Low noise density | 1 µV/√Hz at 2.0 V enables use in precision analog front-ends where reference noise directly limits SNR |
| ESD insensitivity | Non-sensitive per MIL-STD-750 Method 1020 - simplifies handling and eliminates need for ESD-protected assembly lines |
Applications
| Avionics Power Reference | Downhole Sensor Biasing |
|---|---|
Use Scenario: Providing stable 2.0 V reference for ADCs and op-amps in flight control sensor modules exposed to -55 °C to +125 °C thermal cycles. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing primary analog reference rail. Use Value: Maintains regulation accuracy within ±5% across full temperature range and 10-year service life due to hermetic sealing and JANS qualification. |
Use Scenario: Biasing silicon piezoresistive pressure transducers in oil/gas well logging tools operating at 175 °C ambient. IC Role / Device Role / Timing Role: Low-drift Zener regulator supplying excitation voltage to bridge sensors. Use Value: Survives 175 °C junction temperature with zero parametric shift, enabled by -65 °C to +175 °C rating and metallurgical bond integrity. |
| Spacecraft Housekeeping Supply | Military Radio RF Front-End |
Use Scenario: Generating local 2.0 V reference for watchdog timers and memory retention circuits in LEO satellite subsystems. IC Role / Device Role / Timing Role: Radiation-hardened voltage reference ensuring functional safety during solar particle events. Use Value: Inherent radiation hardness (per MicroNote 050) prevents single-event latchup or parametric degradation in unshielded orbits. |
Use Scenario: Stabilizing local oscillator bias in S-band tactical radios subjected to shock, vibration, and wide ambient swings. IC Role / Device Role / Timing Role: Low-capacitance (≈1.8 pF) Zener clamp protecting sensitive VCO tuning nodes. Use Value: Minimal capacitance avoids detuning effects while maintaining regulation stability under mechanical stress and thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CDLL4615-1 | Commercial-grade RoHS-compliant version; identical electrical specs but no MIL screening. | Lacks JAN/JANTX/JANTXV/JANS qualification; unsuitable for defense/aerospace BOMs requiring traceable reliability data. | Select CDLL4615-1 for cost-sensitive industrial designs where MIL-PRF-19500 compliance is not mandated. |
| 1N4615UR-1e3 | RoHS-compliant variant of same part; matte-tin plating replaces tin-lead; otherwise identical in all electrical and mechanical parameters. | Same qualification levels and performance; differs only in termination finish and environmental compliance scope. | Choose 1N4615UR-1e3 when RoHS compliance is required and tin-lead soldering is not used in final assembly. |
Compared with CDLL4615-1 and 1N4615UR-1e3, the 1N4615UR-1 offers full military screening and legacy tin-lead terminations, making it the only option for legacy JANTXV-qualified designs requiring proven process traceability and Pb-based reflow compatibility.
Availability
1N4615UR-1 is available at Aetrix Electronics and suitable for avionics power reference, downhole sensor biasing, and spacecraft housekeeping supply requiring stable component supply across extended temperature ranges and high-reliability lifecycles.
Supply support for 1N4615UR-1 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 Corporation (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 1N4615UR-1 belongs to Microsemi's legacy MIL-PRF-19500/435-qualified Zener diode family, engineered for voltage reference stability in mission-critical systems where parametric drift, radiation exposure, and thermal extremes demand uncompromising performance.
FAQ
What is the Zener voltage tolerance for 1N4615UR-1?
The 1N4615UR-1 has a nominal Zener voltage of 2.0 V with a standard tolerance of ±5%, as defined in the JEDEC specification and confirmed in the Electrical Characteristics table on page 4 of T4-LDS-0245 Rev. 2. This tolerance applies under thermal equilibrium at 25 °C with 250 mA test current.
Is 1N4615UR-1 qualified to JANS level?
Yes, the 1N4615UR-1 is qualified per MIL-PRF-19500/435 up to JANS level, as explicitly stated in the DESCRIPTION section on page 1 of the datasheet. JANS qualification includes full lot traceability, extended environmental testing, and radiation hardness validation per MicroNote 050.
What is the maximum reverse leakage current for 1N4615UR-1?
The maximum reverse leakage current (IR) for 1N4615UR-1 is 2.5 µA at 1.6 V reverse voltage, as specified in the Electrical Characteristics table on page 4. This value is measured at 25 °C and reflects worst-case leakage under sub-breakdown bias conditions.
Does 1N4615UR-1 have RoHS-compliant variants?
Yes - the RoHS-compliant variant is designated 1N4615UR-1e3, which uses annealed matte-tin plating instead of tin-lead. Per the PART NOMENCLATURE section on page 2, the "e3" suffix denotes RoHS compliance and is available for commercial-grade versions only.
What package type does 1N4615UR-1 use?
1N4615UR-1 uses the DO-213AA (also known as SOD80 or CDLL34) glass MELF surface-mount package. As confirmed on pages 1 and 2, this hermetically sealed cylindrical package features metallurgical bonding and cathode band marking, with dimensions detailed on page 6.
1N4615UR-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1250 Ohms
- Current - Reverse Leakage @ Vr:
- 2.5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4615UR-1 FAQ
1.How can I place an order for 1N4615UR-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4615UR-1 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 1N4615UR-1 reliable?
The price and inventory of 1N4615UR-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4615UR-1 is usually 5 days.
3.What payment methods are accepted for 1N4615UR-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4615UR-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4615UR-1?
1N4615UR-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4615UR-1 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 1N4615UR-1?
For technical support, including 1N4615UR-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4615UR-1 requirements.
6.How does Aetrix verify that 1N4615UR-1 is sourced from the original manufacturer or authorized distributors?
All 1N4615UR-1 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 1N4615UR-1 meets industry standards.
7.What is the process for return or replacement of 1N4615UR-1?
All 1N4615UR-1 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4615UR-1, 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 1N4615UR-1 part is unused and in its original packaging.
Return procedure for 1N4615UR-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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