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Microchip Technology 1N4116UR-1
- Part No.:
- 1N4116UR-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4116UR-1.pdf
- Description:
- DIODE ZENER 24V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,803
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Product details
Overview
1N4116UR-1 from Microsemi is a 500 mW surface-mount Zener diode in DO-213AA (SOD-80) glass MELF package, rated for 24.0 V nominal Zener voltage at 250 mA test current, with ±5% tolerance, 150 Ω dynamic impedance, and +0.090 %/°C temperature coefficient. It delivers stable voltage regulation in high-reliability power supply reference and precision biasing circuits across military and industrial environments.
For engineers reviewing the 1N4116UR-1 datasheet, 1N4116UR-1 pinout, 1N4116UR-1 application, or 1N4116UR-1 equivalent, key selection criteria include its hermetically sealed glass MELF construction, JANS-qualified reliability up to 175 °C junction temperature, low 0.01 µA reverse leakage at 18.3 V, and radiation-hardened performance per MicroNote 050 - critical for aerospace, defense, and downhole electronics.
Technical Context
The 1N4116UR-1 operates as a two-terminal voltage reference device, conducting in reverse breakdown to maintain a stable 24.0 V output across load current variations from IZK (knee current) to IZM (24.0 mA max). Its metallurgically bonded glass structure ensures mechanical robustness and hermeticity under thermal cycling and humidity stress.
It exhibits a positive temperature coefficient (+0.090 %/°C), indicating Zener voltage increases linearly with temperature - a key design consideration for temperature-compensated references. Noise density is specified at 1 µV/√Hz (typical), supporting low-noise analog signal conditioning where voltage reference stability directly impacts ADC accuracy and sensor excitation integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24.0 V at 250 mA test current - defines precise regulation point for feedback loops and reference rails. |
| Power Dissipation | 500 mW at 25 °C, derating linearly to zero at 175 °C - sets maximum continuous thermal load on PCB layout. |
| Dynamic Impedance (ZZT) | 150 Ω at 250 mA - determines regulation error under load transients; lower values improve line/load regulation. |
| Reverse Leakage (IR) | 0.01 µA at 18.3 V - ensures minimal parasitic current draw in high-impedance bias networks. |
| Temp. Coefficient (αVZ) | +0.090 %/°C - enables predictable drift modeling in wide-temperature-range designs (–65 to +175 °C). |
| Junction Temp. Range | –65 to +175 °C - supports operation in extreme environments including avionics and oilfield electronics. |
| Noise Density | 1 µV/√Hz - suitable for low-noise analog front-ends where reference noise couples into sensitive amplifiers. |
Pinout & Package
DO-213AA (SOD-80) glass MELF package: hermetically sealed cylindrical body with axial terminals; cathode indicated by single dark band; polarity requires banded end to be biased positive for Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; establishes reference potential for regulated output. |
| Cathode | Zener output terminal | Banded end; connected to regulated voltage rail; must be held at higher potential than anode during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | DO-213AA package provides moisture resistance and long-term parameter stability in harsh environments. |
| MIL-PRF-19500/435 qualification | Available in JAN, JANTX, JANTXV, and JANS screening levels - meets stringent reliability requirements for defense systems. |
| Low noise density | 1 µV/√Hz at 24 V enables use in precision instrumentation without added filtering overhead. |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - validated for total ionizing dose (TID) resilience in space applications. |
| ESD insensitivity | Non-sensitive to ESD per MIL-STD-750 Method 1020 - eliminates need for external protection in handling and assembly. |
Applications
| Aerospace Power Monitoring | Downhole Sensor Biasing |
|---|---|
Use Scenario: Voltage reference in DC-DC converter feedback loop of satellite power management unit operating at –55 to +125 °C. IC Role / Device Role / Timing Role: Zener diode providing stable 24 V reference for error amplifier input. Use Value: JANS qualification and 175 °C max junction temperature ensure uninterrupted regulation during thermal transients in orbit. |
Use Scenario: Precision bias source for piezoresistive pressure transducers in oil/gas well logging tools exposed to 150 °C ambient. IC Role / Device Role / Timing Role: Two-terminal voltage reference establishing excitation voltage for Wheatstone bridge sensors. Use Value: +0.090 %/°C tempco allows accurate drift compensation; hermetic glass package prevents parameter shift from H2S exposure. |
| Avionics Analog Signal Chain | Military Radio RF Stage Bias |
Use Scenario: Reference voltage generator for 16-bit SAR ADC in flight control computer requiring <1 LSB error over temperature. IC Role / Device Role / Timing Role: Low-noise Zener supplying clean 24 V to ADC reference buffer amplifier. Use Value: 1 µV/√Hz noise density minimizes reference-induced quantization noise, preserving ENOB at full scale. |
Use Scenario: Gate bias regulator for GaN RF power amplifier stages in tactical S-band radios subjected to shock/vibration. IC Role / Device Role / Timing Role: Zener diode maintaining stable gate voltage under pulsed RF load conditions. Use Value: Metallurgical bond and MELF geometry withstand mechanical stress without parameter shift or microphonics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CDLL4116-1 | Commercial-grade version; RoHS-compliant matte-tin plating; no MIL screening. | Lacks JAN/JANS qualification; not suitable for defense/aerospace deployments requiring traceable reliability data. | Select when cost-sensitive industrial designs require same electrical specs but no military screening. |
| 1N4116TR | Tape-and-reel packaging variant (EIA-481-1-A, 12 mm tape); identical electrical and thermal specs. | No functional difference; only differs in packaging format for automated SMT placement. | Select for high-volume production requiring reel-fed pick-and-place compatibility. |
Compared with 1N4116UR-1, CDLL4116-1 offers identical Zener characteristics but omits military qualification and hermetic sealing verification, while 1N4116TR retains full JANS compliance and only changes packaging - making it ideal for scalable manufacturing without design revision.
Availability
1N4116UR-1 is available at Aetrix Electronics and suitable for aerospace power monitoring, downhole sensor biasing, avionics analog signal chains, and military radio RF stage biasing requiring stable component supply across extended temperature and radiation environments.
Supply support for 1N4116UR-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 1N4116UR-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for mission-critical voltage regulation where parameter stability, radiation tolerance, and hermetic reliability outweigh cost sensitivity.
FAQ
What is the Zener voltage tolerance for 1N4116UR-1?
The 1N4116UR-1 has a nominal Zener voltage of 24.0 V with a standard tolerance of ±5%, as defined by JEDEC specification for the 1N4099–1N4135 series. This tolerance applies under thermal equilibrium at 25 °C with 250 mA test current and is verified per MIL-PRF-19500/435 screening levels when ordered with JAN/JANTX prefixes. Tighter tolerances (2% or 1%) require alternate part numbering (e.g., C or D suffix).
Is 1N4116UR-1 suitable for high-temperature downhole applications?
Yes, the 1N4116UR-1 is rated for junction temperatures from –65 to +175 °C and features a hermetically sealed DO-213AA glass package that resists moisture and chemical ingress. Its +0.090 %/°C temperature coefficient and metallurgical bond construction make it suitable for downhole sensor biasing in oil/gas logging tools where sustained 150 °C ambient operation is required.
Does 1N4116UR-1 have radiation-hardened characteristics?
Yes, the 1N4116UR-1 is inherently radiation-hardened per Microsemi MicroNote 050, with documented resilience to total ionizing dose (TID) effects. This characteristic stems from its glass-encapsulated structure and metallurgical bonding process, and is confirmed in the T4-LDS-0245 datasheet - making it appropriate for space-grade power regulation without additional shielding.
What is the maximum reverse leakage current for 1N4116UR-1?
The maximum reverse leakage current (IR) for 1N4116UR-1 is 0.01 µA at 18.3 V (76% of VZ), as specified in the Electrical Characteristics table on page 4 of T4-LDS-0245. This ultra-low leakage supports high-impedance bias networks in precision analog circuits where parasitic current paths must be minimized.
Can 1N4116UR-1 be used as a direct replacement for CDLL4116-1?
No - while 1N4116UR-1 and CDLL4116-1 share identical Zener voltage, impedance, and thermal specs, the 1N4116UR-1 carries MIL-PRF-19500/435 qualification (JAN/JANS levels) and hermetic verification, whereas CDLL4116-1 is commercial-grade only. Substitution requires requalification in defense/aerospace systems due to differences in screening, traceability, and environmental validation.
1N4116UR-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 18.3 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
1N4116UR-1 FAQ
1.How can I place an order for 1N4116UR-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4116UR-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 1N4116UR-1 reliable?
The price and inventory of 1N4116UR-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4116UR-1 is usually 5 days.
3.What payment methods are accepted for 1N4116UR-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4116UR-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4116UR-1?
1N4116UR-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4116UR-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 1N4116UR-1?
For technical support, including 1N4116UR-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4116UR-1 requirements.
6.How does Aetrix verify that 1N4116UR-1 is sourced from the original manufacturer or authorized distributors?
All 1N4116UR-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 1N4116UR-1 meets industry standards.
7.What is the process for return or replacement of 1N4116UR-1?
All 1N4116UR-1 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4116UR-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 1N4116UR-1 part is unused and in its original packaging.
Return procedure for 1N4116UR-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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