Microchip Technology JANTX1N4100D-1
- Part No.:
- JANTX1N4100D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4100D-1.pdf
- Description:
- DIODE ZENER 7.5V 500MW DO204AH
- Quantity:
- Payment:

- Shipping:

Inventory:9,139
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Product details
Overview
JANTX1N4100D-1 from Microsemi is a 500 mW, 7.5 V ±1% tolerance metallurgically bonded glass Zener diode in DO-35 package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace and defense power supplies, reference circuits, and overvoltage protection.
For engineers reviewing the JANTX1N4100D-1 datasheet, JANTX1N4100D-1 pinout, JANTX1N4100D-1 application, or JANTX1N4100D-1 equivalent, key selection criteria include its 1% Zener voltage tolerance, 250 mA test current, 200 Ω dynamic impedance at IZT, low noise density (1 µV/√Hz), and JANTX-level military qualification for stable operation from –65 °C to +175 °C.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 7.5 V at 250 mA test current (IZT), exhibiting a positive temperature coefficient of +0.065 %/°C. Its metallurgical bond construction ensures low thermal resistance (RθJL = 250 °C/W) and radiation hardness per Microsemi MicroNote 050.
The diode delivers stable regulation across wide current ranges (IZK to IZM = 5.7 mA to 40 mA) and maintains low reverse leakage (IR ≤ 1.0 µA at VR = 5.7 V), with minimal capacitance (<1.5 pF typical) and noise density optimized for analog reference and low-noise biasing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 7.5 V ±1% at IZT = 250 mA - enables precise 7.5 V reference generation with tight initial accuracy for calibration-critical systems. |
| Power Dissipation | 500 mW @ TL = 25 °C - supports continuous regulation in compact axial-leaded layouts with linear derating to zero at 175 °C. |
| Dynamic Impedance ZZT | 200 Ω max at IZT = 250 mA - ensures minimal output voltage variation under load transients in feedback and reference paths. |
| Reverse Leakage IR | ≤1.0 µA at VR = 5.7 V - guarantees low standby current in high-impedance bias networks and sensor excitation circuits. |
| Noise Density | 1 µV/√Hz - provides ultra-low broadband noise for high-resolution ADC references and precision op-amp biasing. |
| Temp Coefficient αVZ | +0.065 %/°C - allows predictable, monotonic drift compensation in temperature-stable reference designs. |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with cathode indicated by band; operated with banded end positive for Zener regulation. Weight ≈ 0.2 g; lead length 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during Zener conduction | Connected to system ground or lower-potential node; carries full Zener current in regulation mode. |
| Cathode (banded end) | Regulated output node | Provides stable 7.5 V reference; must be decoupled locally to suppress noise and maintain impedance stability. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace flight hardware and defense electronics requiring extended lifetime and burn-in screening. |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in precision reference circuits, lowering test time and cost in high-volume avionics production. |
| Metallurgical bond construction | Enables low RθJL (250 °C/W) and inherent radiation hardness-critical for satellite power subsystems exposed to total ionizing dose. |
| Low noise density (1 µV/√Hz) | Supports sub-16-bit ADC performance in instrumentation front-ends without requiring external filtering or active buffering. |
Applications
| Avionics Power Reference | Satellite Voltage Monitor |
|---|---|
Use Scenario: Providing primary 7.5 V reference for DC-DC converter feedback loops and telemetry voltage scaling in unmanned aerial vehicles. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing stable setpoint for error amplifiers and ADC input scaling. Use Value: 1% tolerance and +0.065 %/°C TC enable <±0.5% total error over –40 °C to +85 °C without calibration. | Use Scenario: Monitoring bus voltage integrity in LEO satellite power distribution units with radiation-hardened requirements. IC Role / Device Role / Timing Role: Precision Zener clamp detecting overvoltage events above 7.5 V threshold in fault-detection circuitry. Use Value: Metallurgical bond and JANTX qualification ensure functional stability after 100 krad(Si) TID exposure. |
| Defense Radar Bias Supply | High-Reliability Sensor Excitation |
Use Scenario: Generating clean bias voltage for GaAs MMIC driver stages in phased-array radar transceivers operating in harsh EMI environments. IC Role / Device Role / Timing Role: Low-noise Zener source replacing noisy switching supply rails to reduce phase noise in RF amplifiers. Use Value: 1 µV/√Hz noise density prevents degradation of radar receiver sensitivity below –120 dBm. | Use Scenario: Exciting strain-gauge bridges in missile guidance inertial measurement units where long-term drift must remain <10 ppm/°C. IC Role / Device Role / Timing Role: Stable shunt reference supplying constant current to Wheatstone bridge arms. Use Value: Tight 1% VZ tolerance and low IR minimize bridge offset error and thermal zero shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4100D-1 | Higher qualification level (JANTXV vs JANTX); tighter screening, enhanced lot traceability, and extended temperature testing. | Required for mission-critical flight control electronics where failure modes demand stricter process controls. | Select JANTXV1N4100D-1 when design authority mandates JANTXV-level documentation or extended burn-in. |
| 1N4100US-1 | Same electrical specs but in surface-mount DO-213AA package; no axial leads; RoHS-compliant matte-tin plating. | Suitable for automated SMT assembly lines and space-constrained PCBs where through-hole mounting is impractical. | Choose 1N4100US-1 for new designs targeting reflow compatibility and reduced board real estate. |
Compared with JANTX1N4100D-1, JANTXV1N4100D-1 adds process rigor without altering electrical behavior, while 1N4100US-1 trades axial mounting for SMT compatibility-neither is pin-compatible due to differing packages, making them application-specific alternatives rather than drop-in replacements.
Availability
JANTX1N4100D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite voltage monitor, and defense radar bias supply applications requiring stable component supply, long-lifecycle support, and traceable military-grade sourcing.
Supply support for JANTX1N4100D-1 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 JANTX1N4100D-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where radiation tolerance, thermal stability, and long-term parametric consistency are mandatory.
FAQ
What is the Zener voltage tolerance of JANTX1N4100D-1?
JANTX1N4100D-1 has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its part number per Microsemi's nomenclature. This corresponds to a nominal 7.5 V Zener voltage with a guaranteed range of 7.425 V to 7.575 V at 250 mA test current and 25 °C ambient, supporting high-accuracy reference designs without post-manufacturing calibration.
Is JANTX1N4100D-1 qualified to MIL-PRF-19500/435?
Yes, JANTX1N4100D-1 is fully qualified to MIL-PRF-19500/435 at the JANTX reliability level. This includes rigorous environmental stress screening, lot acceptance testing, and traceability per military specification-making it suitable for use in airborne, spaceborne, and ground-based defense platforms where component pedigree is mandated.
What is the maximum Zener current IZM for JANTX1N4100D-1?
The maximum Zener current IZM for JANTX1N4100D-1 is 40 mA, as specified in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0245-2 datasheet. This value reflects the highest continuous DC current the device can sustain while remaining within its 500 mW power limit at 25 °C lead temperature.
Does JANTX1N4100D-1 have low noise performance?
Yes, JANTX1N4100D-1 exhibits ultra-low noise density of 1 µV/√Hz at its 250 mA test current, verified per Microsemi's noise measurement methodology using a 1 kHz–3 kHz bandpass filter. This performance makes JANTX1N4100D-1 especially suitable for precision analog circuits such as high-resolution data acquisition references and low-phase-noise RF bias networks.
What package type does JANTX1N4100D-1 use?
JANTX1N4100D-1 uses the hermetically sealed axial-leaded DO-35 (DO-204AH) glass package, with cathode identified by a visible band. The package dimensions conform to JEDEC standards, featuring a body diameter of 1.42–2.29 mm and overall length of 25.4–38.1 mm, optimized for through-hole mounting in high-reliability PCB assemblies.
JANTX1N4100D-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5.7 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)
JANTX1N4100D-1 FAQ
1.How can I place an order for JANTX1N4100D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4100D-1 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 JANTX1N4100D-1 reliable?
The price and inventory of JANTX1N4100D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4100D-1 is usually 5 days.
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Once your JANTX1N4100D-1 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 JANTX1N4100D-1?
For technical support, including JANTX1N4100D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4100D-1 requirements.
6.How does Aetrix verify that JANTX1N4100D-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4100D-1 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 JANTX1N4100D-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4100D-1?
All JANTX1N4100D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4100D-1, 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 JANTX1N4100D-1 part is unused and in its original packaging.
Return procedure for JANTX1N4100D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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