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Microchip Technology JANS1N4111-1/TR
- Part No.:
- JANS1N4111-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4111-1/TR.pdf
- Description:
- DIODE ZENER 17V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,422
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Product details
Overview
JANS1N4111-1/TR from Microsemi is a 500 mW, 17.0 V Zener voltage regulator diode in DO-35 (DO-204AH) axial-leaded glass package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications, with 1% voltage tolerance, 100 Ω dynamic impedance at 250 mA test current, and +0.090 %/°C temperature coefficient.
For engineers reviewing the JANS1N4111-1/TR datasheet, JANS1N4111-1/TR pinout, JANS1N4111-1/TR application, or JANS1N4111-1/TR equivalent, key selection criteria include Zener voltage stability under thermal stress, low noise density (≤1 µV/√Hz), radiation hardness, hermetic glass sealing, and compliance with military screening levels up to JANS.
Technical Context
This device operates as a precision shunt voltage reference in reverse-biased breakdown mode, delivering stable regulation across 10–100 mA operating current range with minimal voltage drift over -65°C to +175°C junction temperature. Its metallurgically bonded construction ensures mechanical robustness and long-term parameter stability under thermal cycling and vibration.
The JANS1N4111-1/TR exhibits a positive temperature coefficient (+0.090 %/°C), enabling predictable voltage shift with temperature-critical for biasing circuits in wide-temperature-range instrumentation and avionics power supplies where compensation schemes rely on known TC behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 17.0 V at 250 mA test current - defines precise regulation point for reference and clamp circuits. |
| Power Dissipation | 500 mW at 25°C lead temperature - supports continuous operation in compact, unheatsinked designs with linear derating above 50°C. |
| Zener Impedance ZZT | 100 Ω at IZT = 250 mA - ensures low AC impedance for effective ripple suppression in analog supply rails. |
| Temp Coefficient αVZ | +0.090 %/°C - enables predictable, monotonic voltage increase with temperature for compensated reference designs. |
| Noise Density ND | ≤1 µV/√Hz - minimizes broadband noise injection into sensitive analog front-ends and precision ADC references. |
| Reverse Leakage IR | 0.05 µA at 13.0 V - guarantees negligible standby current in high-impedance bias networks and battery-backed circuits. |
| Junction Temp Range | -65°C to +175°C - validated for operation in extreme environments including space-grade and engine-mounted electronics. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation. Hermetically sealed, metallurgically bonded construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes return path for Zener current and defines regulation reference potential. |
| Cathode | Regulated output node | Banded terminal; supplies stable 17.0 V when reverse-biased; must be held at higher potential than anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Full screening per military specification-including burn-in, temperature cycling, and lot acceptance testing-for flight-critical systems. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under shock/vibration, ensuring parameter stability over 20+ year service life. |
| Hermetic glass DO-35 package | Prevents moisture ingress and corrosion in humid, salt-laden, or vacuum environments without conformal coating. |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050-suitable for low-earth orbit and nuclear instrumentation. |
| Low capacitance | Typical <1.5 pF (per Figure 3) - preserves high-frequency signal integrity in RF bias and fast-switching protection circuits. |
Applications
| Avionics Power Reference | Satellite Voltage Clamp |
|---|---|
Use Scenario: Regulating auxiliary 17 V rail in flight control computer power distribution unit exposed to -55°C to +125°C ambient. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable bias for op-amps and ADC drivers. Use Value: JANS1N4111-1/TR's +0.090 %/°C TC enables predictable offset correction; its 175°C max junction temp prevents thermal shutdown during transient overload. | Use Scenario: Clamping bus voltage spikes on solar array regulator outputs in LEO satellite power system. IC Role / Device Role / Timing Role: Transient overvoltage protector absorbing ESD and load dump energy. Use Value: 500 mW rating and 100 Ω ZZT allow controlled clamping without thermal runaway; radiation hardness prevents parametric shift in orbit. |
| Nuclear Instrumentation Bias | Tactical Radio RF Stage Bias |
Use Scenario: Supplying ultra-stable 17 V bias to photomultiplier tube (PMT) gain chain in radiation detection spectrometer. IC Role / Device Role / Timing Role: Low-noise DC reference source for high-gain analog amplification. Use Value: ≤1 µV/√Hz noise density prevents signal-to-noise degradation; hermetic seal blocks radon-induced leakage current drift. | Use Scenario: Setting gate bias voltage for GaN PA stages in manpack radio transceivers operating across desert and arctic conditions. IC Role / Device Role / Timing Role: Temperature-compensated voltage reference for RF amplifier quiescent current stabilization. Use Value: Predictable +0.090 %/°C TC allows passive compensation of GaN threshold voltage drift; DO-35 axial leads simplify manual rework in ruggedized chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4111US-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads. | Requires PCB redesign for SMT assembly; unsuitable for through-hole prototyping or high-vibration mechanical retention. | Select when automated assembly, board space constraints, or thermal pad integration are priorities. |
| JANTXV1N4111-1 | Identical DO-35 package and Zener parameters, but qualified only to JANTXV level-not full JANS screening. | Lacks JANS-level radiation testing and extended lot traceability; not approved for Class S spaceflight hardware. | Select for high-reliability ground-based systems where JANS cost premium is unjustified. |
Compared with JANTXV1N4111-1 and 1N4111US-1, the JANS1N4111-1/TR delivers verified radiation hardness, full JANS screening documentation, and axial-leaded mechanical robustness-making it the sole choice for mission-critical aerospace platforms requiring zero-failure probability over lifetime.
Availability
JANS1N4111-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite voltage clamp, and nuclear instrumentation bias applications requiring stable component supply across extended product lifecycles and stringent environmental certifications.
Supply support for JANS1N4111-1/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 JANS1N4111-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435 Zener diode family, engineered specifically for voltage regulation in mission-critical defense, space, and nuclear systems where parameter stability under extreme stress is non-negotiable.
FAQ
What is the Zener voltage tolerance for JANS1N4111-1/TR?
The JANS1N4111-1/TR has a nominal Zener voltage of 17.0 V with ±1% tolerance, denoted by the "D" suffix in the part nomenclature per MIL-PRF-19500/435. This tight tolerance ensures consistent regulation across production lots in high-precision reference applications.
Is JANS1N4111-1/TR RoHS compliant?
No, the JANS1N4111-1/TR is not RoHS compliant. Per the datasheet, RoHS-compliant versions (suffix "e3") are available only for commercial-grade parts; JANS-level devices retain tin-lead plating to meet MIL-STD-750 solderability and reliability requirements.
What is the maximum operating temperature for JANS1N4111-1/TR?
The JANS1N4111-1/TR supports a junction and storage temperature range of -65°C to +175°C. Its thermal resistance junction-to-lead is 250°C/W at 10 mm lead length, enabling reliable operation in engine bay, space payload, and downhole electronics environments.
Does JANS1N4111-1/TR require derating above 25°C ambient?
Yes. The 500 mW power rating linearly derates from 25°C ambient, reaching zero at 175°C. For example, at 100°C ambient, the allowable dissipation drops to approximately 250 mW-requiring careful thermal design in enclosed or high-power-density assemblies.
How is polarity marked on JANS1N4111-1/TR?
The cathode of JANS1N4111-1/TR is marked by a distinct color band on the glass body. For proper Zener regulation, the banded end must be held at a higher potential than the anode-i.e., reverse-biased operation with cathode positive relative to anode.
JANS1N4111-1/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):
- 17 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 13 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4111-1/TR FAQ
1.How can I place an order for JANS1N4111-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4111-1/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 JANS1N4111-1/TR reliable?
The price and inventory of JANS1N4111-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4111-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4111-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4111-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4111-1/TR?
JANS1N4111-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4111-1/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 JANS1N4111-1/TR?
For technical support, including JANS1N4111-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4111-1/TR requirements.
6.How does Aetrix verify that JANS1N4111-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4111-1/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 JANS1N4111-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4111-1/TR?
All JANS1N4111-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4111-1/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 JANS1N4111-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4111-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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