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Microchip Technology 1N4110
- Part No.:
- 1N4110
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
1N4110.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:5,286
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Product details
Overview
1N4110 from Microsemi is a 500 mW, 16.0 V nominal Zener voltage regulator diode in DO-35 (DO-204AH) glass axial-leaded package, qualified to JANTXV level per MIL-PRF-19500/435, with 5% voltage tolerance, 100 Ω dynamic impedance at 250 mA test current, and 0.05 µA maximum reverse leakage at 12.2 V.
For engineers reviewing the 1N4110 datasheet, 1N4110 pinout, 1N4110 application, or 1N4110 equivalent, this part supports precision voltage reference, overvoltage protection, and biasing in military-grade analog circuits where stable regulation across temperature and current variation is required.
Technical Context
The 1N4110 operates as a reverse-biased silicon Zener diode with metallurgically bonded junction for enhanced reliability and low noise. Its Zener voltage is specified at IZT = 250 mA with αVZ = +0.085 %/°C, indicating positive temperature coefficient behavior above 10 V.
It exhibits 100 Ω dynamic impedance (ZZT) at 250 mA, 0.05 µA reverse current (IR) at VR = 12.2 V, and 24.0 mA maximum Zener current (IZM) - all measured at 25 °C with thermal derating to zero power at 175 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 16.0 V at 250 mA test current - defines stable regulation point for reference and clamping circuits |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - sets maximum continuous thermal load on PCB layout |
| Dynamic Impedance ZZT | 100 Ω at 250 mA - determines output voltage stability under varying load current |
| Reverse Leakage IR | 0.05 µA at 12.2 V - ensures minimal quiescent current in high-impedance bias networks |
| Temperature Coefficient αVZ | +0.085 %/°C - quantifies voltage drift with temperature, critical for wide-temperature-range instrumentation |
| Noise Density ND | 1 µV/√Hz (typical, <6.8 V range) - enables low-noise reference use in precision analog signal chains |
| Junction Temp Range | -65 to +175 °C - supports operation in aerospace, downhole, and extended industrial environments |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package; cathode indicated by band; banded end is anode when used in forward conduction, but functions as cathode (positive terminal) during Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward conduction terminal / Zener regulation return path | Connected to circuit ground or lower potential node during regulation; carries full Zener current |
| Cathode (banded end) | Zener regulation output terminal | Provides stable 16.0 V reference relative to anode; must be held at higher potential than anode for breakdown |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 qualification | JANTXV-level screening ensures reliability for defense/aerospace systems with proven burn-in, life test, and radiation hardness |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling, extending lifetime in harsh-environment deployments |
| Low noise density | 1 µV/√Hz typical below 6.8 V - directly supports low-noise voltage references in sensor front-ends and ADC biasing |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift over decades, enabling long-term calibration stability in fielded equipment |
| ESD immunity | Non-sensitive per MIL-STD-750 Method 1020 - eliminates need for external ESD protection in handling and assembly |
Applications
| Avionics Power Monitoring | Downhole Sensor Biasing |
|---|---|
Use Scenario: Monitoring ±15 V analog supply rails in flight control computers using discrete comparator-based overvoltage detection. IC Role / Device Role / Timing Role: Zener reference element providing stable 16.0 V threshold for comparator trip point. Use Value: Enables accurate rail fault detection across -55 to +125 °C operating range without recalibration due to JANTXV qualification and +0.085 %/°C αVZ. |
Use Scenario: Providing bias voltage to piezoresistive pressure transducers in oil/gas well logging tools exposed to 175 °C ambient. IC Role / Device Role / Timing Role: Precision voltage reference for bridge excitation and signal conditioning circuitry. Use Value: Maintains regulation integrity up to 175 °C junction temperature with hermetic DO-35 packaging and metallurgical bond construction. |
| Secure Communications RF Bias | Radiation-Hardened Telemetry |
Use Scenario: Setting gate bias for GaAs FETs in encrypted SATCOM uplink amplifiers operating in low-Earth orbit. IC Role / Device Role / Timing Role: Low-noise Zener reference stabilizing amplifier DC operating point against supply ripple. Use Value: 1 µV/√Hz noise density minimizes phase noise contribution to RF carrier, preserving modulation fidelity. |
Use Scenario: Voltage reference in telemetry modules aboard nuclear reactor monitoring systems requiring TID tolerance >100 krad(Si). IC Role / Device Role / Timing Role: Radiation-hardened Zener regulator maintaining system timing and ADC reference accuracy. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or redundancy in high-dose environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | 12 V nominal, 1 W rating, DO-41 package, commercial-grade only, no MIL qualification | Lacks JANTXV screening, higher power but lower voltage; unsuitable for mil-spec designs requiring traceability and radiation hardness | Select only for cost-sensitive commercial power supplies where 12 V regulation and 1 W dissipation are primary needs |
| 1N5242B | 12 V nominal, 500 mW, DO-35, ±5% tolerance, commercial RoHS-compliant version only | Same package and power, but no military qualification, higher ZZT (~30 Ω), and no radiation hardness documentation | Use only in non-critical industrial controls where MIL-PRF-19500 compliance and long-term parametric stability are not required |
Compared with 1N4110, the 1N4742A offers higher power but lacks military qualification and radiation hardness, while the 1N5242B matches power and package but omits JANTXV screening and verified low-noise performance - making 1N4110 uniquely suited for high-reliability analog reference roles.
Availability
1N4110 is available at Aetrix Electronics and suitable for avionics power monitoring, downhole sensor biasing, secure communications RF bias, and radiation-hardened telemetry requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N4110 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 aerospace-grade components.
The 1N4110 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical analog subsystems across defense, space, and energy exploration.
FAQ
What is the Zener voltage tolerance for the 1N4110?
The 1N4110 has a nominal Zener voltage of 16.0 V with a standard tolerance of ±5%, as defined by JEDEC registration 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 IZT = 250 mA.
Is the 1N4110 suitable for surface-mount applications?
No - the 1N4110 is supplied in the axial-leaded DO-35 (DO-204AH) glass package and is not a surface-mount device. For SMT equivalents, Microsemi offers the 1N4110UR-1 in DO-213AA and 1PMT4110 in DO-216 packages, which share identical electrical specs but differ in mounting form factor.
What is the maximum Zener current (IZM) for the 1N4110?
The maximum Zener current for the 1N4110 is 24.0 mA, derived from its 500 mW power rating and 16.0 V nominal Zener voltage (IZM = PM(AV)/VZ ≈ 31.25 mA), then conservatively limited to 24.0 mA per the Electrical Characteristics table to ensure safe operation within thermal limits and dynamic impedance specifications.
Does the 1N4110 have radiation hardness certification?
Yes - the 1N4110 is inherently radiation hard as documented in Microsemi MicroNote 050, and its JANTXV qualification per MIL-PRF-19500/435 includes radiation survivability testing. It is rated for total ionizing dose (TID) tolerance suitable for space and nuclear environments, though exact krad(Si) values require consultation of MicroNote 050 or factory test reports.
How does the temperature coefficient affect 1N4110 performance in wide-temperature applications?
The 1N4110 has a temperature coefficient αVZ of +0.085 %/°C, meaning its Zener voltage increases by approximately 13.6 mV per °C rise above 25 °C. At +125 °C, VZ shifts to ~17.4 V - a design-critical drift that must be accommodated in precision reference circuits, especially in avionics and downhole systems where thermal gradients exceed 100 °C.
1N4110 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
1N4110 FAQ
1.How can I place an order for 1N4110 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4110 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 1N4110 reliable?
The price and inventory of 1N4110 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4110 is usually 5 days.
3.What payment methods are accepted for 1N4110?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4110 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4110?
1N4110 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4110 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 1N4110?
For technical support, including 1N4110 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4110 requirements.
6.How does Aetrix verify that 1N4110 is sourced from the original manufacturer or authorized distributors?
All 1N4110 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 1N4110 meets industry standards.
7.What is the process for return or replacement of 1N4110?
All 1N4110 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4110, 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 1N4110 part is unused and in its original packaging.
Return procedure for 1N4110:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4110 Tags
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