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Microchip Technology JANS1N4108D-1/TR
- Part No.:
- JANS1N4108D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4108D-1/TR.pdf
- Description:
- DIODE ZENER 14V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,942
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Product details
Overview
JANS1N4108D-1/TR from Microsemi is a 14.0 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense systems requiring stable voltage regulation under wide temperature and current variation.
For engineers reviewing the JANS1N4108D-1/TR datasheet, JANS1N4108D-1/TR pinout, JANS1N4108D-1/TR application, or JANS1N4108D-1/TR equivalent, key selection criteria include Zener voltage tolerance (±1%), dynamic impedance (200 Ω at 250 mA), noise density (≤40 µV/√Hz), radiation hardness, and hermetic DO-35 packaging for harsh-environment deployment.
Technical Context
This device operates as a precision shunt voltage regulator with cathode-banded polarity, requiring reverse-bias connection where the banded end is positive relative to the anode. It delivers stable 14.0 V regulation across 250 mA test current (IZT) and supports operation from –65 °C to +175 °C junction temperature.
Its metallurgical bond construction ensures low noise (≤40 µV/√Hz above 6.8 V), minimal capacitance (typical <2 pF), and inherent radiation hardness per Microsemi MicroNote 050 - critical for space-grade analog reference and power-supply feedback circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 14.0 V ±1% at 250 mA - enables precise 14 V reference in feedback loops without external trimming. |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - supports continuous operation in conduction-cooled avionics enclosures. |
| Dynamic Impedance ZZT | 200 Ω at IZT = 250 mA - ensures tight regulation under load transients in DC-DC converter error amplifiers. |
| Noise Density ND | ≤40 µV/√Hz - maintains low-noise performance in precision analog references and sensor excitation circuits. |
| Temp Coefficient αVZ | +0.085 %/°C - predictable positive drift simplifies thermal compensation in wide-temperature-range instrumentation. |
| Reverse Leakage IR | ≤0.05 µA at VR = 11.2 V - minimizes quiescent current loss in battery-backed voltage monitors. |
| Junction Temp Range | –65 °C to +175 °C - validated for use in satellite power subsystems and missile guidance electronics. |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with tin-lead plating; cathode indicated by color band; total weight ≈0.2 g; lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference Ground Node | Connected to system ground or low-side return path in shunt regulator topology. |
| Cathode (banded end) | Regulated Output Node | Provides stable 14.0 V output when reverse-biased; must be held positive relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated reliability for flight-critical systems including radiation tolerance and burn-in screening. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling, ensuring long-term stability in launch-vibration environments. |
| 1% Zener voltage tolerance | Reduces need for post-assembly calibration in precision voltage references used in ADC/DAC biasing. |
| Hermetic glass DO-35 package | Prevents moisture ingress and corrosion in high-humidity or salt-spray military platforms. |
| Non-ESD-sensitive per MIL-STD-750 | Enables safe handling during manual assembly in field maintenance depots without ESD protection infrastructure. |
Applications
| Avionics Power Monitoring | Satellite Voltage Reference |
|---|---|
Use Scenario: Real-time monitoring of 28 V aircraft bus voltage via resistive divider into ADC input. IC Role / Device Role / Timing Role: Shunt reference providing stable 14.0 V scaling point for analog-to-digital conversion. Use Value: ±1% tolerance ensures <0.14 V absolute error in 28 V measurement, meeting DO-160 Section 22 surge immunity requirements. | Use Scenario: Biasing photodiode amplifier in star tracker optical sensor subsystem. IC Role / Device Role / Timing Role: Low-noise 14.0 V reference for op-amp VREF in ultra-low-drift signal chain. Use Value: ≤40 µV/√Hz noise density prevents degradation of sub-arcsecond angular resolution in deep-space navigation. |
| Missile Guidance Feedback | Radiation-Hardened LDO Reference |
Use Scenario: Closed-loop regulation of pyro-initiator driver supply in tactical missile control electronics. IC Role / Device Role / Timing Role: Zener-based feedback element in discrete series-pass regulator controlling 14 V actuator rail. Use Value: JANS qualification and –65 °C to +175 °C operation ensure functionality during rapid atmospheric re-entry thermal transients. | Use Scenario: Reference input for radiation-tolerant LDO in nuclear reactor control instrumentation. IC Role / Device Role / Timing Role: Primary voltage setpoint source for feedback loop of hardened linear regulator. Use Value: Inherent radiation hardness eliminates need for shielding or redundancy, reducing SWaP-C in safety-critical I&C systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4108D-1 | Same electrical specs but qualified only to JANTXV level; lower screening rigor than JANS. | Limited to non-flight-critical subsystems where full JANS radiation testing is not mandated. | Select when cost sensitivity outweighs requirement for full space-grade qualification. |
| 1N4108D-1/TR | Commercial-grade version; RoHS-compliant plating; no MIL-PRF-19500 qualification. | Restricted to ground-based industrial controls or lab test equipment with benign environment. | Choose only for prototyping or non-mission-critical applications where traceability and screening are not required. |
Compared with JANTXV1N4108D-1 and 1N4108D-1/TR, the JANS1N4108D-1/TR provides verified radiation hardness, extended temperature margin, and full JANS-level screening - making it the sole option for flight hardware where single-event latchup immunity and 100% lot traceability are mandatory.
Availability
JANS1N4108D-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite voltage reference, and missile guidance feedback requiring stable component supply across extended temperature ranges and radiation-exposed environments.
Supply support for JANS1N4108D-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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The JANS1N4108D-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where environmental robustness and long-term parametric stability are non-negotiable.
FAQ
What is the Zener voltage tolerance of JANS1N4108D-1/TR?
JANS1N4108D-1/TR has a nominal Zener voltage of 14.0 V with a guaranteed tolerance of ±1%, as indicated by the "D" suffix in the part number per Microsemi's nomenclature. This tolerance is verified under standard test conditions at 25 °C with 250 mA Zener test current and applies across the full qualified temperature range when used within derated power limits.
Is JANS1N4108D-1/TR suitable for space applications?
Yes, JANS1N4108D-1/TR is qualified to JANS level per MIL-PRF-19500/435 and exhibits inherent radiation hardness per Microsemi MicroNote 050. Its hermetic DO-35 package, metallurgical bond construction, and full screening make it suitable for low-earth orbit and deep-space missions where TID tolerance and SEE immunity are required.
What is the maximum operating temperature for JANS1N4108D-1/TR?
JANS1N4108D-1/TR supports a junction and storage temperature range of –65 °C to +175 °C. At ambient temperatures above 25 °C, its 500 mW power rating must be linearly derated to zero at 175 °C, per the thermal derating curve in the official datasheet.
Does JANS1N4108D-1/TR have RoHS compliance?
No, JANS1N4108D-1/TR is not RoHS compliant. The "e3" RoHS designation applies only to commercial-grade versions (e.g., 1N4108D-1e3). JANS-level parts retain tin-lead plating per MIL-STD-750 method 2026 to ensure solderability and reliability in high-reliability assemblies.
How is polarity marked on JANS1N4108D-1/TR?
JANS1N4108D-1/TR uses a cathode band marking on the glass body to indicate polarity. The banded end is the cathode and must be held positive relative to the unbanded (anode) end for proper Zener regulation. This marking is visible under standard visual inspection and conforms to JEDEC DO-35 mechanical standards.
JANS1N4108D-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):
- 14 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.7 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)
JANS1N4108D-1/TR FAQ
1.How can I place an order for JANS1N4108D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4108D-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 JANS1N4108D-1/TR reliable?
The price and inventory of JANS1N4108D-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 JANS1N4108D-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4108D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4108D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4108D-1/TR?
JANS1N4108D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4108D-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 JANS1N4108D-1/TR?
For technical support, including JANS1N4108D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4108D-1/TR requirements.
6.How does Aetrix verify that JANS1N4108D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4108D-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 JANS1N4108D-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4108D-1/TR?
All JANS1N4108D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4108D-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 JANS1N4108D-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4108D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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