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Microchip Technology JAN1N4112D-1/TR
- Part No.:
- JAN1N4112D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4112D-1/TR.pdf
- Description:
- DIODE ZENER 18V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,627
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Product details
Overview
JAN1N4112D-1/TR from Microsemi is a 18.0 V, 1% tolerance, 500 mW axial-leaded Zener diode in DO-35 (DO-204AH) glass package, qualified to JAN level per MIL-PRF-19500/435, with 100 Ω dynamic impedance at 250 mA and +0.090 %/°C temperature coefficient - used for precision voltage reference in military-grade power supply regulation.
For engineers reviewing the JAN1N4112D-1/TR datasheet, JAN1N4112D-1/TR pinout, JAN1N4112D-1/TR application, or JAN1N4112D-1/TR equivalent, key selection criteria include Zener voltage tolerance (1%), junction temperature range (–65 to +175 °C), metallurgical bond construction, noise density (1 µV/√Hz), and RoHS-compliant plating (e3 suffix).
Technical Context
This device operates as a reverse-biased voltage regulator with a nominal Zener voltage of 18.0 V at 250 mA test current (IZT), exhibiting 100 Ω dynamic impedance (ZZT) and a positive temperature coefficient of +0.090 %/°C - enabling stable regulation across wide thermal excursions in high-reliability systems.
Its hermetically sealed DO-35 glass package features tin-lead or RoHS-compliant matte-tin plating, cathode band polarity marking, and metallurgical bonding that ensures low noise (1 µV/√Hz), minimal capacitance, and radiation hardness per Microsemi MicroNote 050 - critical for aerospace and defense analog signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 18.0 V ±1% at 250 mA - enables precise reference generation with tight tolerance for calibration-critical circuits. |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - supports continuous operation in high-temp environments with proper thermal management. |
| Dynamic Impedance ZZT | 100 Ω at IZT = 250 mA - ensures low output impedance for stable regulation under varying load currents. |
| Temp Coefficient αVZ | +0.090 %/°C - provides predictable, monotonic voltage drift over temperature for compensated reference designs. |
| Noise Density ND | 1 µV/√Hz - delivers ultra-low broadband noise essential for high-resolution ADC references and low-noise amplifiers. |
| Reverse Leakage IR | ≤0.05 µA at VR = 14.4 V - guarantees minimal quiescent current draw in standby or battery-powered applications. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by colored 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 | Connected to lower-potential node during Zener operation; carries full regulated current in reverse bias. |
| Cathode | Zener regulation terminal | Banded end; connected to higher-potential node; defines Zener breakdown voltage relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 qualification | JAN-level reliability verified for extended life, shock/vibe resistance, and screening compliance in mission-critical hardware. |
| Metallurgical bond construction | Eliminates interfacial voids and delamination risk, ensuring long-term stability and low parameter drift under thermal cycling. |
| 1% Zener voltage tolerance | Reduces need for post-calibration trimming in precision reference circuits, lowering BOM and assembly cost. |
| Radiation hardness | Inherent TID tolerance per Microsemi MicroNote 050 - validated for use in space-qualified and nuclear instrumentation systems. |
Applications
| Avionics Power Reference | Military Radio Bias Supply |
|---|---|
Use Scenario: Provides stable 18.0 V reference for analog-to-digital converters in flight control sensor interfaces. IC Role / Device Role / Timing Role: Precision voltage reference source for ADC front-end scaling and offset calibration. Use Value: 1% tolerance and +0.090 %/°C TC ensure <±0.5% total error over –55 to +125 °C operating range without active compensation. | Use Scenario: Supplies regulated bias voltage to RF power amplifier stages in tactical HF/VHF transceivers. IC Role / Device Role / Timing Role: Zener shunt regulator maintaining constant gate bias under variable battery input (12–30 V). Use Value: 500 mW rating and 100 Ω ZZT enable stable regulation despite pulsed RF current draw up to 200 mA peak. |
| Satellite Payload Sensor Calibration | Nuclear Instrumentation Reference |
Use Scenario: Serves as primary voltage standard for thermocouple signal conditioning in LEO satellite payloads. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference for cold-junction compensation circuitry. Use Value: Inherent radiation hardness and 1 µV/√Hz noise support sub-10 µV measurement resolution in high-TID environments. | Use Scenario: Generates traceable 18.0 V reference in gamma spectroscopy front-end amplifiers. IC Role / Device Role / Timing Role: Low-noise, high-stability shunt regulator for op-amp bias networks. Use Value: 0.05 µA max leakage at 14.4 V prevents loading errors in femtoampere-level current measurement paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4112US-1 | Same 18.0 V/1% spec but in DO-213AA surface-mount package; no axial leads. | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or legacy board repair. | Select when automated SMT production, space-constrained layouts, or vibration resistance are priorities. |
| JANTXV1N4112D-1 | Identical electrical specs but qualified to JANTXV level with enhanced screening (burn-in, thermal shock, hermeticity). | Required for Class H or Class K military programs where extended reliability testing is mandated. | Select when program requirements specify JANTXV screening per MIL-PRF-19500/435. |
Compared with JAN1N4112D-1/TR, the 1N4112US-1 offers identical regulation performance in a compact SMT form factor, while JANTXV1N4112D-1 adds rigorous screening for mission-critical deployments - neither is pin-compatible due to differing packages or qualification scope.
Availability
JAN1N4112D-1/TR is available at Aetrix Electronics and suitable for avionics power reference, military radio bias supply, and satellite payload sensor calibration requiring stable component supply across extended temperature and radiation environments.
Supply support for JAN1N4112D-1/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, radiation-hardened, and aerospace-grade components.
The JAN1N4112D-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered for precision voltage regulation in defense, space, and nuclear instrumentation systems where long-term stability and environmental resilience are mandatory.
FAQ
What is the Zener voltage and tolerance of JAN1N4112D-1/TR?
JAN1N4112D-1/TR has a nominal Zener voltage of 18.0 V with a ±1% tolerance, measured at 250 mA test current (IZT) and 25 °C ambient. This tight tolerance is achieved via process-controlled metallurgical bonding and is specified per JEDEC registration and MIL-PRF-19500/435 verification - making JAN1N4112D-1/TR suitable for calibration-grade reference applications where post-fabrication trimming is impractical.
What does the "D" in JAN1N4112D-1/TR indicate?
The "D" in JAN1N4112D-1/TR denotes 1% Zener voltage tolerance per the Microsemi part nomenclature guide. It is distinct from "C" (2%) and blank (5%). This designation is laser-marked on the DO-35 glass body and verified during JAN-level screening - confirming that each JAN1N4112D-1/TR unit meets the ±1% VZ specification before shipment.
Is JAN1N4112D-1/TR RoHS compliant?
JAN1N4112D-1/TR carries the "e3" suffix in its full commercial designation (e.g., 1N4112D-1e3/TR), indicating RoHS-compliant matte-tin plating. However, the JAN-reliability version uses tin-lead plating per MIL-STD-750; RoHS compliance applies only to commercial-grade variants. JAN1N4112D-1/TR itself is not RoHS-compliant due to its JAN-level tin-lead lead finish - confirmed in T4-LDS-0245-2 Rev. 1, page 2.
What is the maximum reverse leakage current for JAN1N4112D-1/TR?
JAN1N4112D-1/TR has a maximum reverse leakage current (IR) of 0.05 µA at VR = 14.4 V, per Electrical Characteristics Table on page 3 of T4-LDS-0245-2. This ultra-low leakage supports high-impedance bias networks and precision current-sensing circuits where parasitic current paths must be minimized - a key design advantage of JAN1N4112D-1/TR in sensor interface applications.
Can JAN1N4112D-1/TR be used in surface-mount designs?
No - JAN1N4112D-1/TR is packaged exclusively in the axial-leaded DO-35 (DO-204AH) glass case and is not compatible with surface-mount assembly. For SMT equivalents, Microsemi offers the 1N4112US-1 in DO-213AA package. Substituting JAN1N4112D-1/TR into an SMT footprint would require mechanical adaptation and invalidate MIL-PRF-19500/435 qualification - so JAN1N4112D-1/TR remains strictly a through-hole solution.
JAN1N4112D-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 18 V
- Tolerance:
- ±1%
- Power - Max:
- -
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 13.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JAN1N4112D-1/TR FAQ
1.How can I place an order for JAN1N4112D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4112D-1/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 JAN1N4112D-1/TR reliable?
The price and inventory of JAN1N4112D-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4112D-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4112D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4112D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4112D-1/TR?
JAN1N4112D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4112D-1/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 JAN1N4112D-1/TR?
For technical support, including JAN1N4112D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4112D-1/TR requirements.
6.How does Aetrix verify that JAN1N4112D-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4112D-1/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 JAN1N4112D-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4112D-1/TR?
All JAN1N4112D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4112D-1/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 JAN1N4112D-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4112D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4112D-1/TR Tags
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