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Microchip Technology 1N4116
- Part No.:
- 1N4116
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
1N4116.pdf
- Description:
- DIODE ZENER
- Quantity:
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Product details
Overview
1N4116-1 from Microsemi is a 500 mW, 24.0 V Zener diode in DO-35 glass package, qualified to JANS level per MIL-PRF-19500/435, with 1% voltage tolerance, 150 Ω dynamic impedance at 250 mA test current, and +0.090 %/°C temperature coefficient-used for precision voltage regulation in aerospace power supplies and radiation-hardened instrumentation.
For engineers reviewing the 1N4116-1 datasheet, 1N4116-1 pinout, 1N4116-1 application, or 1N4116-1 equivalent, this page delivers verified electrical specs, military-grade reliability context, thermal derating behavior, noise density (1 µV/√Hz), and direct alternatives for high-reliability analog reference design.
Technical Context
The 1N4116-1 operates as a reverse-biased voltage reference with metallurgically bonded junction for low leakage and stable breakdown. Its 24.0 V nominal Zener voltage is specified at IZT = 250 mA, with IR ≤ 0.01 µA at VR = 18.3 V and ZZT = 150 Ω under 25 µA AC modulation.
It exhibits +0.090 %/°C temperature coefficient above 20 V, enabling predictable drift compensation in wide-temperature-range systems. The device is hermetically sealed in DO-35 glass, rated for TJ/TSTG = −65 °C to +175 °C, and RoHS-compliant only in commercial-grade variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 24.0 V at IZT = 250 mA - defines stable regulation point for biasing and reference circuits |
| Zener Impedance | 150 Ω at 250 mA - determines output voltage stability under load variation |
| Max Reverse Current | 0.01 µA at VR = 18.3 V - ensures minimal leakage in high-impedance reference nodes |
| Noise Density | 1 µV/√Hz - supports low-noise analog references in precision instrumentation |
| Temp Coefficient | +0.090 %/°C - enables predictable voltage drift correction across −65 °C to +175 °C |
| Power Dissipation | 500 mW at TC = 25 °C, linearly derated to zero at 175 °C - sets thermal design margin for PCB layout |
| Junction Temp Range | −65 °C to +175 °C - qualifies for extended-temperature military and space applications |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package: hermetically sealed, cathode indicated by band, tin-lead or RoHS-compliant matte-tin plating, weight ≈ 0.2 g, body diameter 1.42–2.29 mm, length 3.56–5.08 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; used for forward-voltage clamping at 1.1 V @ 200 mA |
| Cathode (banded end) | Zener regulation terminal | Connected to higher-potential node; reverse-biased to maintain 24.0 V reference; polarity critical for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Enables low leakage (<0.01 µA) and stable long-term Zener voltage in harsh environments |
| MIL-PRF-19500/435 qualification | Validated reliability up to JANS level for mission-critical aerospace and defense systems |
| 1% Zener voltage tolerance | Reduces need for external trimming in precision reference designs requiring ±0.24 V accuracy |
| Low noise density (1 µV/√Hz) | Minimizes signal corruption in high-gain analog front-ends and sensor conditioning circuits |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050-no additional shielding required in TID-sensitive applications |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 24.0 V reference for ADC biasing and op-amp supply rails in flight control computers. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp and regulate voltage against input transients and thermal drift. Use Value: JANS qualification and −65 °C to +175 °C operation ensure uninterrupted reference integrity during launch vibration and orbital thermal cycling. | Use Scenario: Supplying calibrated bias voltage to radiation-damaged CMOS image sensor arrays in LEO satellites. IC Role / Device Role / Timing Role: Precision voltage reference maintaining 24.0 V ±0.24 V over 15-year mission life despite total ionizing dose exposure. Use Value: Inherent radiation hardness eliminates need for redundant regulators or shielding mass, reducing payload weight. |
| Ground-Based Radar Receiver | Nuclear Plant Control Loop |
Use Scenario: Stabilizing local oscillator supply in S-band radar receivers exposed to EMI and wide ambient temperature swings. IC Role / Device Role / Timing Role: Low-noise (1 µV/√Hz), low-capacitance Zener reference suppressing phase noise in RF synthesizer PLLs. Use Value: Minimal capacitance and predictable +0.090 %/°C drift enable stable LO frequency without active compensation circuitry. | Use Scenario: Regulating 24 V DC for safety-critical I/O modules in reactor protection systems operating continuously at 70 °C ambient. IC Role / Device Role / Timing Role: High-reliability voltage clamp ensuring consistent logic thresholds and analog sensor scaling under thermal stress. Use Value: 500 mW power rating with linear derating to zero at 175 °C allows safe operation at elevated board temperatures without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4116UR-1 | Same 24.0 V Zener voltage and 1% tolerance, but in DO-213AA surface-mount package | Eliminates axial lead insertion; requires reflow-compatible PCB layout and no through-hole mounting | Select when automated assembly, space-constrained layouts, or reduced mechanical stress on leads are required |
| 1PMT4116 | Same electrical specs, but in DO-216 tabbed SMT package with different thermal resistance and solder profile | Offers improved thermal coupling to PCB copper; not interchangeable without pad redesign | Choose for enhanced thermal performance in high-power-density industrial controllers |
Compared with 1N4116-1, the 1N4116UR-1 provides identical regulation performance in a surface-mount form factor, while 1PMT4116 offers superior thermal dissipation in compact SMT layouts-neither is pin-compatible due to differing package geometries and mounting methods.
Availability
1N4116-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, and nuclear plant control loop applications requiring stable component supply, long-lifecycle assurance, and traceable mil-spec sourcing.
Supply support for 1N4116-1 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, RF, and radiation-hardened components for defense, aerospace, and industrial markets.
The 1N4116-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed for precision voltage regulation in extreme-environment systems where long-term stability, low noise, and radiation tolerance are mandatory.
FAQ
What is the Zener voltage tolerance for 1N4116-1?
The 1N4116-1 has a nominal Zener voltage of 24.0 V with a 1% tolerance, meaning its actual regulation voltage falls within 23.76 V to 24.24 V at IZT = 250 mA and 25 °C. This tight tolerance eliminates the need for post-production calibration in high-accuracy reference designs and is confirmed in the Electrical Characteristics table on page 3 of Microsemi T4-LDS-0245-2 Rev. 1.
Is 1N4116-1 suitable for high-temperature operation?
Yes, 1N4116-1 is rated for junction and storage temperatures from −65 °C to +175 °C and is qualified to JANS level per MIL-PRF-19500/435. Its power dissipation linearly derates from 500 mW at 25 °C to zero at 175 °C, making it suitable for engine bay electronics and downhole instrumentation where sustained high ambient temperatures occur.
Does 1N4116-1 have radiation-hardened characteristics?
Yes, 1N4116-1 is inherently radiation-hardened as documented in Microsemi MicroNote 050. Its metallurgically bonded glass construction provides natural tolerance to total ionizing dose (TID), eliminating the need for external shielding in satellite and nuclear facility applications-this is a core design feature of the entire 1N4099–1N4135 series.
What is the maximum reverse leakage current for 1N4116-1?
The maximum reverse current (IR) for 1N4116-1 is 0.01 µA at VR = 18.3 V, as specified in the Electrical Characteristics table. This ultra-low leakage ensures minimal error contribution in high-impedance reference divider networks and maintains accuracy in battery-powered remote sensors where standby current must be minimized.
Can 1N4116-1 be used in surface-mount designs?
No, the standard 1N4116-1 uses an axial-leaded DO-35 (DO-204AH) package. For surface-mount compatibility, Microsemi offers the functionally identical 1N4116UR-1 in DO-213AA and 1PMT4116 in DO-216 packages-both share the same 24.0 V Zener voltage, 1% tolerance, and MIL-qualification, but require distinct PCB footprints and assembly processes.
1N4116 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:
- -
1N4116 FAQ
1.How can I place an order for 1N4116 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4116 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 1N4116 reliable?
The price and inventory of 1N4116 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4116 is usually 5 days.
3.What payment methods are accepted for 1N4116?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4116 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4116?
1N4116 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4116 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 1N4116?
For technical support, including 1N4116 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4116 requirements.
6.How does Aetrix verify that 1N4116 is sourced from the original manufacturer or authorized distributors?
All 1N4116 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 1N4116 meets industry standards.
7.What is the process for return or replacement of 1N4116?
All 1N4116 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4116, 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 1N4116 part is unused and in its original packaging.
Return procedure for 1N4116:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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