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Microchip Technology JANTX1N4103-1
- Part No.:
- JANTX1N4103-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4103-1.pdf
- Description:
- DIODE ZENER 9.1V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,573
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Product details
Overview
JANTX1N4103-1 from Microsemi is a 500 mW, 9.1 V ±5% 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.
For engineers reviewing the JANTX1N4103-1 datasheet, JANTX1N4103-1 pinout, JANTX1N4103-1 application, or JANTX1N4103-1 equivalent, key selection factors include its 9.1 V nominal Zener voltage at 250 mA test current, 200 Ω dynamic impedance, 0.5 µA reverse leakage at 7.0 V, +0.080 %/°C temperature coefficient, and hermetically sealed axial-leaded construction.
Technical Context
This device operates as a precision shunt voltage regulator with stable breakdown behavior across -65 °C to +175 °C junction temperature range. Its metallurgical bond ensures low noise density (1 µV/√Hz typical at 9.1 V) and radiation hardness per MicroNote 050.
The JANTX1N4103-1 exhibits 200 Ω dynamic impedance at 250 mA Zener test current and maintains regulation over broad current ranges (IZK to IZM = 40 mA max), with thermal resistance of 250 °C/W junction-to-lead when mounted with 10 mm lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 9.1 V ±5% at 250 mA - defines regulated output voltage under nominal bias |
| Power Dissipation | 500 mW @ 25 °C - sets maximum continuous thermal load before derating begins |
| Dynamic Impedance ZZT | 200 Ω @ 250 mA - determines output voltage stability under varying load current |
| Reverse Leakage IR | 0.5 µA @ 7.0 V - specifies minimum off-state current in regulation mode |
| Temp. Coefficient αVZ | +0.080 %/°C - quantifies voltage drift with ambient temperature change |
| Junction Temp. Range | -65 °C to +175 °C - enables operation in extreme environmental conditions |
| Noise Density ND | 1 µV/√Hz @ 9.1 V - supports low-noise analog reference applications |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; banded end is positive during Zener regulation. Weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to circuit common; reverse-biased operation requires cathode at higher potential |
| Cathode | Zener regulation output | Banded end; supplies regulated 9.1 V when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace and military systems requiring extended lifetime and failure rate control |
| Metallurgical bond construction | Enables low noise density (1 µV/√Hz) and inherent radiation hardness per MicroNote 050 |
| Hermetically sealed glass package | Prevents moisture ingress and ensures long-term parameter stability in harsh environments |
| Non-ESD-sensitive design | Withstands electrostatic discharge per MIL-STD-750 Method 1020 without protection circuitry |
| Minimal capacitance | Typical <1.5 pF - preserves high-frequency signal integrity in RF bias and timing circuits |
Applications
| Aerospace Power Reference | Defense System Biasing |
|---|---|
Use Scenario: Providing stable 9.1 V reference in satellite DC-DC converter feedback loops operating across -55 °C to +125 °C. IC Role / Device Role / Timing Role: Shunt voltage reference regulating error amplifier input in isolated flyback controller. Use Value: JANTX1N4103-1's +0.080 %/°C tempco and MIL-qualified construction ensure <±1.2% total voltage drift over full temperature range. | Use Scenario: Setting precise bias points for RF front-end amplifiers in radar transceivers exposed to vibration and thermal cycling. IC Role / Device Role / Timing Role: Zener clamp establishing fixed DC operating point for GaAs FET gate bias networks. Use Value: Hermetic DO-35 package and 200 Ω ZZT maintain regulation accuracy despite mechanical stress and wide current variation (1–40 mA). |
| Avionics Sensor Excitation | Tactical Radio Voltage Clamp |
Use Scenario: Supplying excitation voltage to piezoresistive pressure sensors in flight control systems where EMI immunity is critical. IC Role / Device Role / Timing Role: Low-noise shunt regulator filtering supply ripple before sensor bridge interface. Use Value: 1 µV/√Hz noise density prevents corruption of microvolt-level sensor outputs in 16-bit ADC signal chains. | Use Scenario: Protecting baseband IC inputs from transient overvoltage during antenna switching in handheld HF radios. IC Role / Device Role / Timing Role: Fast-response Zener clamp absorbing 100 ns spikes up to 20 V peak. Use Value: 0.2 g mass and axial leads enable direct PCB mounting near protected node with minimal inductance (<1 nH). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4103US | Same 9.1 V rating and DO-35 package but commercial-grade (non-mil-qualified); RoHS-compliant matte-tin plating | Lacks JANTX reliability screening and radiation hardness; suitable only for non-critical industrial use | Select when cost sensitivity outweighs mission-critical reliability requirements |
| JAN1N4103-1 | Identical electrical specs and DO-35 package but qualified only to JAN level (lower screening than JANTX) | Reduced burn-in and parametric testing depth; acceptable for less demanding military subsystems | Choose when full JANTX qualification is unnecessary but mil-spec traceability is required |
Compared with JANTX1N4103-1, 1N4103US offers lower cost and RoHS compliance but no radiation hardness or extended reliability testing, while JAN1N4103-1 provides partial mil-qualification at reduced screening rigor-making JANTX1N4103-1 the only option meeting full JANTX-level assurance for flight-critical functions.
Availability
JANTX1N4103-1 is available at Aetrix Electronics and suitable for aerospace power references, defense system biasing, and avionics sensor excitation requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTX1N4103-1 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JANTX1N4103-1 belongs to Microsemi's legacy MIL-PRF-19500/435 Zener diode family, engineered specifically for voltage regulation in mission-critical systems where parameter stability under thermal, radiation, and mechanical stress is mandatory.
FAQ
What is the Zener voltage tolerance for JANTX1N4103-1?
JANTX1N4103-1 has a nominal Zener voltage of 9.1 V with ±5% tolerance, consistent with the standard JEDEC specification for this series. This tolerance applies at 250 mA test current and 25 °C ambient temperature, and is verified during JANTX-level qualification testing per MIL-PRF-19500/435.
Is JANTX1N4103-1 suitable for high-temperature operation?
Yes, JANTX1N4103-1 is rated for junction temperatures from -65 °C to +175 °C and features linear power derating from 500 mW at 25 °C to zero at 175 °C. Its metallurgically bonded construction and hermetic DO-35 package ensure stable regulation performance in extended-temperature aerospace and downhole applications.
Does JANTX1N4103-1 require external heat sinking?
No, JANTX1N4103-1 does not require external heat sinking under typical operating conditions. With RθJL = 250 °C/W at 10 mm lead length and 500 mW max dissipation, self-heating remains within limits when leads are soldered to standard PCB copper; however, thermal relief pads should be minimized to preserve junction-to-lead conduction path.
What is the noise performance of JANTX1N4103-1?
JANTX1N4103-1 delivers 1 µV/√Hz typical noise density at 9.1 V and 250 mA, measured in the 1 kHz–3 kHz band. This low-noise characteristic stems from its metallurgical bond structure and makes JANTX1N4103-1 appropriate for precision analog references where voltage ripple must remain below 10 µV RMS.
How is polarity marked on JANTX1N4103-1?
JANTX1N4103-1 uses a single black band to indicate the cathode terminal; the banded end must be held at a higher potential than the anode to achieve Zener regulation. Polarity is confirmed per MIL-STD-750 method 2026, and incorrect orientation results in forward conduction (~1.1 V drop) rather than regulation.
JANTX1N4103-1 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):
- 9.1 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 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)
JANTX1N4103-1 FAQ
1.How can I place an order for JANTX1N4103-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4103-1 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 JANTX1N4103-1 reliable?
The price and inventory of JANTX1N4103-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4103-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4103-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4103-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4103-1?
JANTX1N4103-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4103-1 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 JANTX1N4103-1?
For technical support, including JANTX1N4103-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4103-1 requirements.
6.How does Aetrix verify that JANTX1N4103-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4103-1 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 JANTX1N4103-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4103-1?
All JANTX1N4103-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4103-1, 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 JANTX1N4103-1 part is unused and in its original packaging.
Return procedure for JANTX1N4103-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4103-1 Tags
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