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Microchip Technology 1N4114-1
- Part No.:
- 1N4114-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4114-1.pdf
- Description:
- DIODE ZENER 20V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,417
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Product details
Overview
1N4114-1 from Microsemi is a 500 mW, 20.0 V ±5% metallurgically bonded glass Zener diode in DO-35 (DO-204AH) package, qualified to JANTXV level per MIL-PRF-19500/435. It delivers stable voltage regulation with 15.2 mA Zener test current, 150 Ω dynamic impedance at IZT, and 0.01 µA max reverse leakage at 16.0 V.
For engineers reviewing the 1N4114-1 datasheet, 1N4114-1 pinout, 1N4114-1 application, or 1N4114-1 equivalent, key selection factors include its military-grade reliability, low noise density (1 µV/√Hz), temperature coefficient of +0.090 %/°C, and hermetic glass package suited for high-reliability power supply and reference circuits.
Technical Context
This Zener diode operates in reverse breakdown mode with cathode-banded polarity, requiring the banded end to be held positive relative to the anode for regulation. Its metallurgical bond ensures mechanical robustness and thermal stability across -65°C to +175°C junction temperature range.
The device exhibits linear power derating from 500 mW at 25°C ambient to zero at 175°C on a typical FR4 board, and maintains low capacitance (typical <2 pF at 20 V) and ESD insensitivity per MIL-STD-750 method 1020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 20.0 V ±5% at 250 mA test current - defines nominal regulation point under standard thermal conditions |
| Power Dissipation | 500 mW at TC = 25°C - sets maximum continuous DC power handling before thermal derating begins |
| Zener Impedance ZZT | 150 Ω at IZT = 250 mA - determines output voltage variation under load current changes |
| Reverse Leakage IR | 0.01 µA max at VR = 16.0 V - ensures minimal quiescent current in standby regulation |
| Temp Coefficient αVZ | +0.090 %/°C - quantifies voltage drift over temperature; critical for precision reference designs |
| Noise Density ND | 1 µV/√Hz - enables low-noise analog references in instrumentation and sensing circuits |
| Junction Temp Range | -65°C to +175°C - supports operation in aerospace, downhole, and military environments |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with tin-lead or RoHS-compliant matte-tin plating; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; reverse-biased operation requires this terminal to be at lower potential than cathode |
| Cathode | Regulated output node | Banded end; held at stable 20.0 V above anode when reverse-biased above knee voltage |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 qualification | JANTXV-level screening ensures performance consistency in high-reliability systems |
| Metallurgical bond construction | Enhances thermal cycling endurance and long-term parameter stability vs. epoxy-bonded alternatives |
| Low noise density | 1 µV/√Hz enables use in precision analog references where signal integrity is critical |
| Hermetic glass encapsulation | Prevents moisture ingress and parameter shift over time in harsh environmental conditions |
| ESD insensitivity | Non-sensitive per MIL-STD-750 method 1020 - reduces handling risk during assembly and field service |
Applications
| Avionics Power Reference | Satellite Voltage Monitor |
|---|---|
Use Scenario: Providing stable 20 V reference for ADC biasing and sensor excitation in flight control computers. IC Role / Device Role / Timing Role: Zener regulator supplying precision reference voltage to analog front-end circuitry. Use Value: JANTXV qualification and -65°C to +175°C operation ensure uninterrupted function during extreme thermal transients. | Use Scenario: Monitoring bus voltage integrity in radiation-hardened satellite power distribution units. IC Role / Device Role / Timing Role: Standby shunt regulator that clamps overvoltage events while maintaining low leakage. Use Value: Inherent radiation hardness per MicroNote 050 and 0.01 µA IR at 16 V enable reliable fault detection without false triggers. |
| Downhole Telemetry Supply | Military Radio Bias Network |
Use Scenario: Generating local 20 V rail for pressure/temperature transducer signal conditioning in oil well logging tools. IC Role / Device Role / Timing Role: Primary voltage reference in high-temperature analog subsystems exposed to >150°C ambient. Use Value: 150 Ω ZZT and +0.090 %/°C αVZ allow predictable regulation drift compensation in closed-loop calibration algorithms. | Use Scenario: Stabilizing RF amplifier bias points in manpack radios operating across desert-to-arctic temperature ranges. IC Role / Device Role / Timing Role: Low-noise shunt regulator for LNA and mixer stage VCC rails. Use Value: 1 µV/√Hz noise density prevents degradation of receiver sensitivity and adjacent-channel selectivity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4114UR-1 | Same electrical specs, but in DO-213AA surface-mount package instead of DO-35 axial lead | Requires SMT reflow process; eliminates through-hole mounting and manual soldering | Select for space-constrained PCB layouts where automated assembly is preferred |
| 1N4114TR | Identical DO-35 package and electrical parameters, supplied in EIA-296 tape-and-reel format | Optimized for high-volume pick-and-place manufacturing rather than hand-soldered prototyping | Select for production runs requiring automated component placement and traceable reel logistics |
Compared with 1N4114UR-1 and 1N4114TR, the 1N4114-1 offers direct axial-lead compatibility with legacy through-hole designs, full JANTXV screening, and immediate availability in tube packaging-making it optimal for repair, qualification testing, and low-volume military hardware builds.
Availability
1N4114-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite voltage monitor, and downhole telemetry supply requiring stable component supply with guaranteed MIL-spec compliance and long-term obsolescence management.
Supply support for 1N4114-1 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, radiation-hardened, and defense-grade analog and mixed-signal components.
The 1N4114-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for voltage regulation in aerospace, defense, and industrial systems demanding extended temperature operation and long-term parametric stability.
FAQ
What is the Zener voltage tolerance for the 1N4114-1?
The 1N4114-1 has a nominal Zener voltage of 20.0 V with a standard tolerance of ±5%, as defined in the JEDEC-registered specification and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This tolerance applies under thermal equilibrium at 25°C with 250 mA test current.
Is the 1N4114-1 qualified to JANS level?
No, the 1N4114-1 is qualified to JANTXV level per MIL-PRF-19500/435, as stated in the DESCRIPTION section on page 1. JANS qualification is available for other members of the same series but not for the 1N4114-1 variant per the documented reliability level nomenclature and qualification listing.
What is the maximum reverse leakage current for the 1N4114-1?
The 1N4114-1 has a maximum reverse leakage current (IR) of 0.01 µA at VR = 16.0 V, as specified in the Electrical Characteristics table on page 3. This value reflects worst-case leakage under rated reverse voltage and is measured at 25°C ambient temperature.
Does the 1N4114-1 have RoHS compliance?
Yes, RoHS-compliant versions of the 1N4114-1 are available with the "e3" suffix (e.g., 1N4114-1e3), as noted in the PART NOMENCLATURE section on page 2. These versions feature RoHS-compliant annealed matte-tin plating and are offered for commercial-grade applications only.
What is the thermal resistance junction-to-lead for the 1N4114-1?
The thermal resistance junction-to-lead (RθJL) for the 1N4114-1 is 250°C/W when measured with 3/8 inch (10 mm) lead length from the body, as listed in the MAXIMUM RATINGS table on page 1. This value assumes standard mounting conditions per MIL-PRF-19500/435 test methodology.
1N4114-1 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):
- 20 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 15.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N4114-1 FAQ
1.How can I place an order for 1N4114-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4114-1 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 1N4114-1 reliable?
The price and inventory of 1N4114-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4114-1 is usually 5 days.
3.What payment methods are accepted for 1N4114-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4114-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4114-1?
1N4114-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4114-1 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 1N4114-1?
For technical support, including 1N4114-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4114-1 requirements.
6.How does Aetrix verify that 1N4114-1 is sourced from the original manufacturer or authorized distributors?
All 1N4114-1 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 1N4114-1 meets industry standards.
7.What is the process for return or replacement of 1N4114-1?
All 1N4114-1 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4114-1, 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 1N4114-1 part is unused and in its original packaging.
Return procedure for 1N4114-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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