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Microchip Technology 1N4110/TR
- Part No.:
- 1N4110/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AA, DO-7, Axial
- Datasheet:
-
1N4110/TR.pdf
- Description:
- DIODE ZENER 16V 500MW DO7
- Quantity:
- Payment:
- Shipping:
Inventory:3,512
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Product details
Overview
1N4110/TR from Microsemi is a 500 mW, 16 V axial-leaded Zener diode in DO-35 (DO-204AH) glass package, qualified to JANTXV level per MIL-PRF-19500/435, with ±5% voltage tolerance, 100 Ω dynamic impedance at 250 mA, and 0.05 µA reverse leakage at 12.2 V. It serves as a precision voltage reference in military-grade power regulation circuits.
For engineers reviewing the 1N4110/TR datasheet, 1N4110/TR pinout, 1N4110/TR application, or 1N4110/TR equivalent, this page delivers verified Zener voltage, thermal derating behavior, noise density, radiation hardness, and mil-spec qualification status - critical for high-reliability analog design and aerospace power conditioning.
Technical Context
This device operates in reverse breakdown with a nominal Zener voltage of 16.0 V at 250 mA test current (IZT), exhibiting a temperature coefficient of +0.085 %/°C and dynamic impedance (ZZT) of 100 Ω. Its metallurgically bonded construction ensures stable regulation across -65 °C to +175 °C junction temperature range.
Designed for high-reliability applications, the 1N4110/TR features hermetic glass sealing, non-ESD-sensitive operation per MIL-STD-750 Method 1020, and inherent radiation hardness documented in Microsemi MicroNote 050. Noise density is 1 µV/√Hz at 16 V, supporting low-noise reference use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16.0 V at 250 mA - defines precise regulation point for feedback loops and reference generation |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact through-hole layouts with linear derating to zero at 175 °C |
| Dynamic Impedance (ZZT) | 100 Ω at IZT - ensures minimal output voltage variation under load current changes |
| Reverse Leakage (IR) | 0.05 µA at 12.2 V - guarantees low standby power loss in high-impedance bias networks |
| Noise Density (ND) | 1 µV/√Hz at 16 V - enables use in precision analog references where low broadband noise is critical |
| Temp. Coefficient (αVZ) | +0.085 %/°C - allows predictable drift compensation in temperature-stable voltage sources |
| Junction Temp. Range | -65 °C to +175 °C - validated for extended environmental operation in avionics and space-qualified systems |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package: hermetically sealed, cathode indicated by band, tin-lead or RoHS-compliant matte-tin plating, ~0.2 g weight, 1.0–1.5 inch lead length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; used for forward-bias testing or clamping |
| Cathode (banded end) | Zener regulation terminal | Connected to higher-potential node; reverse-biased to maintain 16.0 V reference in regulator circuits |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling, ensuring long-term parameter stability in harsh environments |
| JANTXV qualification per MIL-PRF-19500/435 | Validated screening for burn-in, temperature cycling, and life testing - required for defense and aerospace deployment |
| Hermetic glass DO-35 package | Prevents moisture ingress and corrosion, maintaining electrical integrity over 20+ years in sealed enclosures |
| Radiation hardness (MicroNote 050) | Withstands total ionizing dose (TID) >100 krad(Si) without parametric shift - suitable for low-earth orbit systems |
| Low capacitance (typ. <2 pF) | Minimizes high-frequency loading on reference nodes, preserving stability in fast-switching power supply feedback paths |
Applications
| Avionics Power Reference | Military Radar Bias Supply |
|---|---|
Use Scenario: Providing stable 16 V reference for analog-to-digital converter (ADC) drivers in flight control computers. IC Role / Device Role / Timing Role: Zener voltage reference establishing ground-referenced precision threshold for signal conditioning circuitry. Use Value: JANTXV qualification and -65 °C to +175 °C operation ensure uninterrupted reference accuracy across extreme aircraft thermal profiles. | Use Scenario: Generating fixed bias voltage for GaAs FET amplifiers in airborne radar front-end modules. IC Role / Device Role / Timing Role: Low-noise Zener regulator supplying clean DC bias to RF gain stages. Use Value: 1 µV/√Hz noise density prevents phase noise degradation in sensitive L-band receiver chains. |
| Satellite Onboard Computer | Nuclear Instrumentation |
Use Scenario: Regulating auxiliary voltage rails in radiation-hardened onboard computers for CubeSat missions. IC Role / Device Role / Timing Role: Radiation-tolerant voltage clamp protecting microcontroller reset circuitry from transient overvoltage. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or redundancy in TID-limited subsystems. | Use Scenario: Stabilizing high-voltage detector bias supplies in nuclear spectroscopy analyzers. IC Role / Device Role / Timing Role: Precision Zener element in ultra-low-drift voltage divider networks for pulse-height calibration. Use Value: 0.05 µA reverse leakage at 12.2 V minimizes current-induced drift in high-impedance (>10 MΩ) measurement paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4110US | Same 16 V Zener voltage and DO-35 package, but surface-mount DO-213AA variant with shorter leads and tighter thermal resistance (RθJL = 200 °C/W vs. 250 °C/W). | Requires rework of PCB layout for SMT placement; not suitable for through-hole prototyping or legacy board repair. | Select when automated assembly, smaller footprint, or improved thermal coupling to copper pour is prioritized. |
| 1N4110-1 | Identical electrical specs and DO-35 package, but lacks TR tape-and-reel packaging and RoHS compliance marking; commercial-grade only (no JANTXV screening). | Not acceptable for defense contracts requiring traceable mil-spec qualification; limited to industrial or lab-use applications. | Select only for cost-sensitive, non-mil applications where full qualification documentation is unnecessary. |
Compared with 1N4110US and 1N4110-1, the 1N4110/TR provides tape-and-reel delivery for automated insertion, RoHS-compliant plating, and full JANTXV screening - making it the sole choice for production deployment in certified aerospace hardware.
Availability
1N4110/TR is available at Aetrix Electronics and suitable for avionics power reference, military radar bias supply, and satellite onboard computer applications requiring stable component supply, long-term obsolescence management, and full traceability to MIL-PRF-19500/435 qualification.
Supply support for 1N4110/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets, with emphasis on radiation-hardened and mil-qualified components.
The 1N4110/TR belongs to Microsemi's legacy 1N4099–1N4135 Zener series, engineered specifically for precision voltage regulation in mission-critical systems where long-term stability, environmental resilience, and qualification integrity are non-negotiable.
FAQ
What is the Zener voltage tolerance for the 1N4110/TR?
The 1N4110/TR 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 250 mA test current (IZT). No tighter tolerance variants (e.g., 2% or 1%) are listed for the 1N4110/TR suffix in the provided documentation.
Is the 1N4110/TR RoHS compliant?
Yes, the 1N4110/TR is RoHS compliant, indicated by the "e3" suffix in its full part number (1N4110-1e3/TR per nomenclature guide). RoHS compliance applies to commercial-grade versions only and covers annealed matte-tin plating per MIL-STD-750 Method 2026. JANTXV-qualified units retain RoHS compliance while meeting additional screening requirements.
What is the maximum reverse leakage current for the 1N4110/TR?
The maximum reverse leakage current (IR) for the 1N4110/TR is 0.05 µA measured at VR = 12.2 V, as specified in the Electrical Characteristics table on page 3. This value reflects worst-case leakage under rated conditions and supports use in high-impedance bias networks where leakage-induced error must remain below 100 pA.
Does the 1N4110/TR require heatsinking in standard operation?
No external heatsink is required for the 1N4110/TR at ambient temperatures ≤50 °C, as its 500 mW power rating is thermally managed via lead conduction. The datasheet specifies RθJL = 250 °C/W at 3/8″ lead length, meaning junction-to-lead temperature rise is ≤125 °C at full power - well within the -65 °C to +175 °C operating range. Derating begins linearly above 50 °C ambient.
How is polarity marked on the 1N4110/TR package?
The 1N4110/TR uses standard axial-leaded DO-35 polarity marking: the cathode is identified by a distinct color band near one end of the glass body. During Zener regulation, the banded end must be held at higher potential relative to the anode. This marking is consistent across all 1N4099–1N4135 series devices and verified in the Mechanical and Packaging section on page 2.
1N4110/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AA, DO-7, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12.15 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-7 (DO-204AA)
1N4110/TR FAQ
1.How can I place an order for 1N4110/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4110/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 1N4110/TR reliable?
The price and inventory of 1N4110/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4110/TR is usually 5 days.
3.What payment methods are accepted for 1N4110/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4110/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4110/TR?
1N4110/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4110/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 1N4110/TR?
For technical support, including 1N4110/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4110/TR requirements.
6.How does Aetrix verify that 1N4110/TR is sourced from the original manufacturer or authorized distributors?
All 1N4110/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 1N4110/TR meets industry standards.
7.What is the process for return or replacement of 1N4110/TR?
All 1N4110/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4110/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 1N4110/TR part is unused and in its original packaging.
Return procedure for 1N4110/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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