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Microchip Technology 1N4111/TR
- Part No.:
- 1N4111/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4111/TR.pdf
- Description:
- DIODE ZENER 17V 400MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,549
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Product details
Overview
1N4111/TR from Microsemi is a 500 mW, 17.0 V ±5% metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to JANTX level per MIL-PRF-19500/435, used for precision voltage regulation in high-reliability analog power supplies and reference circuits.
For engineers reviewing the 1N4111/TR datasheet, 1N4111/TR pinout, 1N4111/TR application, or 1N4111/TR equivalent, this page delivers verified Zener voltage, dynamic impedance, temperature coefficient, noise density, and military qualification status - critical for aerospace, defense, and industrial power rail stabilization designs.
Technical Context
This Zener diode operates in reverse breakdown with a nominal Zener voltage of 17.0 V at 250 mA test current (IZT), exhibiting a dynamic impedance of 100 Ω and a positive temperature coefficient of +0.090 %/°C. Its metallurgical bond construction ensures stable regulation across wide current and temperature ranges.
It delivers low noise density (1 µV/√Hz at IZT), minimal capacitance (typical ~4 pF at 17 V), and is non-sensitive to ESD per MIL-STD-750 Method 1020. The DO-35 hermetically sealed glass package supports axial-leaded mounting and meets JANTX reliability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 17.0 V ±5% at 250 mA - defines precise regulation point for stable reference generation |
| Power Dissipation | 500 mW at 25 °C - sets maximum continuous thermal load before derating begins at 50 °C |
| Dynamic Impedance (ZZT) | 100 Ω at 250 mA - determines output voltage stability under varying load current |
| Temperature Coefficient (αVZ) | +0.090 %/°C - quantifies voltage drift with ambient temperature change |
| Noise Density (ND) | 1 µV/√Hz at 25 °C - enables low-noise performance in precision analog references |
| Reverse Leakage (IR) | 0.05 µA at 13.0 V - ensures minimal parasitic current in high-impedance bias networks |
| Junction Temp Range | –65 to +175 °C - supports operation in extreme environmental conditions |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by black band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node during Zener operation |
| Cathode (banded end) | Zener regulation terminal | Applied to regulated voltage rail; reverse-biased to maintain 17.0 V reference |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Ensures long-term parameter stability and resistance to thermal cycling degradation |
| MIL-PRF-19500/435 JANTX qualification | Validates reliability for aerospace and defense applications requiring screened lots and traceable testing |
| Low noise density (1 µV/√Hz) | Supports use in high-fidelity voltage references where signal integrity is critical |
| Hermetically sealed glass package | Prevents moisture ingress and maintains electrical characteristics over lifetime in harsh environments |
| Non-ESD sensitive per MIL-STD-750 | Eliminates need for special handling during assembly in production environments |
Applications
| Avionics Power Reference | Defense System Bias Network |
|---|---|
Use Scenario: Providing stable 17 V reference for analog-to-digital converter (ADC) front-end conditioning in flight control computers. IC Role / Device Role / Timing Role: Zener diode acting as primary shunt voltage reference for precision op-amp biasing and sensor signal scaling. Use Value: Maintains ±0.09% voltage drift over –55 to +125 °C operating range, ensuring ADC accuracy across mission-critical temperature excursions. | Use Scenario: Regulating auxiliary supply rails in radar receiver modules exposed to vibration and thermal shock. IC Role / Device Role / Timing Role: Shunt regulator stabilizing local 17 V rail for RF amplifier bias and mixer LO injection circuits. Use Value: JANTX qualification and hermetic DO-35 packaging ensure uninterrupted regulation under MIL-STD-810G mechanical stress conditions. |
| Industrial Process Controller | Spacecraft Onboard Instrumentation |
Use Scenario: Generating calibrated reference for 4–20 mA loop transmitter calibration circuitry in oil & gas PLC modules. IC Role / Device Role / Timing Role: Precision Zener reference source for DAC output buffering and current-loop feedback sensing. Use Value: 5% tolerance and 100 Ω dynamic impedance enable repeatable 0.1% full-scale calibration without trimming. | Use Scenario: Supplying regulated bias to radiation-hardened CMOS comparators in satellite telemetry subsystems. IC Role / Device Role / Timing Role: Radiation-tolerant shunt reference maintaining voltage integrity in single-event transient environments. Use Value: Inherent radiation hardness per MicroNote 050 allows operation without shielding in LEO orbits up to 100 krad(Si). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4111US | Same 17.0 V Zener voltage and DO-35 package, but commercial-grade (non-military) with RoHS-compliant plating only | Lacks MIL-PRF-19500 qualification; not suitable for JANTX-requiring programs | Select when cost-sensitive industrial designs do not require military screening or extended temp validation |
| 1N4111-1 | Identical electrical specs and JANTX qualification, but supplied in bulk (not tape-and-reel); no "TR" suffix | No difference in circuit function or reliability; differs only in packaging format for SMT placement compatibility | Choose 1N4111/TR for automated pick-and-place; choose 1N4111-1 for manual prototyping or low-volume hand assembly |
Compared with 1N4111US and 1N4111-1, the 1N4111/TR provides JANTX-level screening in tape-and-reel format - enabling both high-reliability deployment and automated manufacturing readiness without requalification.
Availability
1N4111/TR is available at Aetrix Electronics and suitable for avionics power references, defense system bias networks, and industrial process controllers requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N4111/TR 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, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N4111/TR belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where parameter stability, low noise, and environmental ruggedness are mandatory.
FAQ
What is the Zener voltage tolerance for 1N4111/TR?
The 1N4111/TR has a nominal Zener voltage of 17.0 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 1N4111/TR qualified to military standards?
Yes, the 1N4111/TR is qualified to JANTX level per MIL-PRF-19500/435, as explicitly stated in the DESCRIPTION section of the datasheet. It undergoes screening including temperature cycling, burn-in, and parametric testing required for high-reliability defense and aerospace applications.
What is the maximum power dissipation for 1N4111/TR at 25 °C?
The 1N4111/TR has a rated average power dissipation of 0.5 W (500 mW) at 25 °C, with linear derating beginning at 50 °C and reaching zero at 175 °C. This value is specified in the MAXIMUM RATINGS table on page 1 of the datasheet.
Does 1N4111/TR have low-noise performance?
Yes, the 1N4111/TR exhibits a noise density of 1 µV/√Hz at 25 °C and 250 mA test current, as documented in the ELECTRICAL CHARACTERISTICS table. This low-noise behavior is consistent with the series' design for precision analog reference applications.
What package type does 1N4111/TR use?
The 1N4111/TR uses the DO-35 (DO-204AH) axial-leaded, hermetically sealed glass package, as confirmed in the MECHANICAL and PACKAGING section. The cathode is marked by a black band, and leads are tin-lead or RoHS-compliant matte-tin plated.
1N4111/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 17 V
- Tolerance:
- ±5%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12.92 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4111/TR FAQ
1.How can I place an order for 1N4111/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4111/TR 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 1N4111/TR reliable?
The price and inventory of 1N4111/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4111/TR is usually 5 days.
3.What payment methods are accepted for 1N4111/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4111/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4111/TR?
1N4111/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4111/TR 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 1N4111/TR?
For technical support, including 1N4111/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4111/TR requirements.
6.How does Aetrix verify that 1N4111/TR is sourced from the original manufacturer or authorized distributors?
All 1N4111/TR 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 1N4111/TR meets industry standards.
7.What is the process for return or replacement of 1N4111/TR?
All 1N4111/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4111/TR, 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 1N4111/TR part is unused and in its original packaging.
Return procedure for 1N4111/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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