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Microchip Technology JANS1N4105-1/TR
- Part No.:
- JANS1N4105-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4105-1/TR.pdf
- Description:
- DIODE ZENER 11V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,273
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Product details
Overview
JANS1N4105-1/TR from Microsemi is a 500 mW, 11.0 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It delivers ±5% Zener tolerance, 250 mA test current, 200 Ω dynamic impedance at IZT, and operates across –65 °C to +175 °C junction temperature range.
For engineers reviewing the JANS1N4105-1/TR datasheet, JANS1N4105-1/TR pinout, JANS1N4105-1/TR application, or JANS1N4105-1/TR equivalent, key selection criteria include military-grade reliability qualification, low noise density (≤40 µV/√Hz), hermetic glass packaging, and stable regulation under wide current/temperature variation.
Technical Context
This device functions as a precision shunt voltage reference with metallurgically bonded construction ensuring long-term stability and radiation hardness per Microsemi MicroNote 050. Its Zener breakdown mechanism provides predictable regulation at 11.0 V with +0.080 %/°C temperature coefficient and minimal capacitance (typ. <2 pF).
The JANS1N4105-1/TR is designed for operation in reverse bias with cathode band indicating the positive terminal during regulation. It exhibits 0.05 µA maximum reverse leakage at VR = 8.5 V and supports up to 40 mA maximum Zener current while maintaining thermal integrity via 250 °C/W junction-to-lead thermal resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 11.0 V at 250 mA - precise reference point for voltage clamping or regulation circuits |
| Zener Tolerance | ±5% - ensures predictable operating window without binning or calibration |
| Power Dissipation | 500 mW @ TC = 25 °C - supports robust operation in high-temperature environments with linear derating to zero at 175 °C |
| Dynamic Impedance ZZT | 200 Ω @ IZT - maintains tight regulation under varying load currents |
| Noise Density ND | ≤40 µV/√Hz - enables use in low-noise analog references and precision instrumentation |
| Reverse Leakage IR | 0.05 µA @ VR = 8.5 V - minimizes standby power loss in battery-backed systems |
| Temp Coefficient αVZ | +0.080 %/°C - predictable drift behavior simplifies thermal compensation design |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with tin-lead plating; cathode identified by single black band; weight ≈ 0.2 g; lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point in shunt regulation topology |
| Cathode | Regulated output node | Banded end supplies stable 11.0 V when reverse-biased; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for spaceflight, avionics, and nuclear-hardened systems requiring highest reliability screening |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 - no additional shielding required |
| Low capacitance | Typical <2 pF - preserves high-frequency signal integrity in RF biasing and fast-switching protection |
| ESD immunity | Non-sensitive per MIL-STD-750 Method 1020 - withstands handling without special precautions |
Applications
| Avionics Power Conditioning | Satellite Onboard Reference |
|---|---|
Use Scenario: Regulating auxiliary rail voltages in flight control computers where ambient temperature swings from –55 °C to +125 °C occur. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 11.0 V bias for op-amps and ADC drivers. Use Value: JANS-level qualification ensures uninterrupted operation during mission-critical phases without recalibration. | Use Scenario: Supplying reference voltage to radiation-tolerant DACs in LEO satellite telemetry subsystems. IC Role / Device Role / Timing Role: Precision Zener element establishing known voltage baseline for data conversion accuracy. Use Value: Inherent radiation hardness eliminates need for redundant shielding or derating, saving mass and volume. |
| Nuclear Instrumentation | High-Temp Industrial Control |
Use Scenario: Biasing photomultiplier tube HV supplies in reactor monitoring equipment exposed to gamma fields. IC Role / Device Role / Timing Role: Stable Zener clamp protecting downstream regulators from transient overvoltage events. Use Value: Hermetic glass package prevents moisture ingress and parameter shift under prolonged neutron exposure. | Use Scenario: Voltage reference in downhole oilfield logging tools operating continuously at 175 °C ambient. IC Role / Device Role / Timing Role: Primary regulation node maintaining sensor excitation voltage within ±0.5% over full temperature range. Use Value: Junction temperature rating up to +175 °C enables direct mounting without heatsinks or thermal interface materials. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4105US-1 | Same electrical specs but in surface-mount DO-213AA package; no axial leads | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or wire-wrap | Select when automated placement and board space reduction are priorities over manual serviceability |
| JANTXV1N4105-1 | Identical DO-35 package and Zener parameters but qualified only to JANTXV level (lower screening than JANS) | Approved for high-reliability ground-based military systems but not spaceflight or nuclear environments | Choose for cost-sensitive defense electronics where full JANS screening is not mandated by program requirements |
Compared with JANS1N4105-1/TR, the 1N4105US-1 offers identical regulation performance in a compact SMT form factor, while JANTXV1N4105-1 provides a lower-cost alternative with reduced reliability screening-both require explicit validation for radiation or extreme thermal environments where JANS qualification is mandatory.
Availability
JANS1N4105-1/TR is available at Aetrix Electronics and suitable for avionics power conditioning, satellite onboard reference, and nuclear instrumentation requiring stable component supply with guaranteed traceability and extended lifecycle support.
Supply support for JANS1N4105-1/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JANS1N4105-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family engineered specifically for mission-critical voltage regulation in extreme environments including space, nuclear, and high-temperature industrial settings.
FAQ
What is the Zener voltage and tolerance of JANS1N4105-1/TR?
JANS1N4105-1/TR has a nominal Zener voltage of 11.0 V with ±5% tolerance at 250 mA test current. This value is measured under thermal equilibrium at 25 °C ambient and remains stable across its full operating temperature range of –65 °C to +175 °C. The JANS1N4105-1/TR maintains this specification after full MIL-PRF-19500/435 screening.
Is JANS1N4105-1/TR RoHS compliant?
No, JANS1N4105-1/TR is not RoHS compliant. Per the Microsemi datasheet T4-LDS-0245-2, RoHS compliance (e3 suffix) is available only on commercial-grade versions of this series. The JANS1N4105-1/TR uses traditional tin-lead plating and is manufactured to meet military specifications that do not require RoHS adherence.
What is the maximum Zener current IZM for JANS1N4105-1/TR?
The maximum Zener current IZM for JANS1N4105-1/TR is 40 mA. This value is derived from its 500 mW power rating and 11.0 V Zener voltage (P = V × I → I = 0.5 W / 11.0 V ≈ 45.5 mA), with margin applied for reliability. The datasheet specifies 40 mA as the absolute maximum continuous dc current under rated conditions.
How does the temperature coefficient affect JANS1N4105-1/TR performance?
JANS1N4105-1/TR has a temperature coefficient αVZ of +0.080 %/°C, meaning its Zener voltage increases by approximately 8.8 mV per degree Celsius rise above 25 °C. This predictable positive drift allows designers to compensate circuitry accurately in high-precision references, especially in environments with wide thermal excursions.
What packaging format does JANS1N4105-1/TR use and how is polarity marked?
JANS1N4105-1/TR uses the DO-35 (DO-204AH) hermetically sealed axial-leaded glass package. Polarity is marked by a single black cathode band; the banded end must be held positive relative to the unmarked anode end during Zener regulation operation. The "TR" suffix indicates tape-and-reel packaging per EIA-296 standard.
JANS1N4105-1/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):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 8.5 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)
JANS1N4105-1/TR FAQ
1.How can I place an order for JANS1N4105-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4105-1/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 JANS1N4105-1/TR reliable?
The price and inventory of JANS1N4105-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4105-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4105-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4105-1/TR transactions.
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4.How is shipping managed for JANS1N4105-1/TR?
JANS1N4105-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4105-1/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 JANS1N4105-1/TR?
For technical support, including JANS1N4105-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4105-1/TR requirements.
6.How does Aetrix verify that JANS1N4105-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4105-1/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 JANS1N4105-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4105-1/TR?
All JANS1N4105-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4105-1/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 JANS1N4105-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4105-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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