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Microchip Technology JANTX1N4983US/TR
- Part No.:
- JANTX1N4983US/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTX1N4983US/TR.pdf
- Description:
- DIODE ZENER 110V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:9,149
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Product details
Overview
JANTX1N4983US/TR from Microsemi is a surface-mount, hermetically sealed, voidless-glass 5 W Zener diode with nominal Zener voltage of 110 V, ±5% tolerance, 12 mA test current, and 125 Ω dynamic impedance at IZT. It operates from –65 °C to +175 °C and delivers stable voltage regulation in high-reliability military power conditioning circuits.
For engineers reviewing the JANTX1N4983US/TR datasheet, JANTX1N4983US/TR pinout, JANTX1N4983US/TR application, or JANTX1N4983US/TR equivalent, this part is selected for precision voltage reference, overvoltage clamping, and regulated bias supply in aerospace avionics, radiation-hardened instrumentation, and extended-temperature industrial control systems.
Technical Context
This device belongs to the MIL-PRF-19500/356 qualified JANTX series, featuring internal Category I metallurgical bonds and triple-layer passivation for enhanced reliability. Its voidless-glass hermetic seal ensures zero moisture ingress and immunity to thermal cycling-induced failure.
Rated for 5 W dissipation at TEC = 125 °C (derated linearly to zero at 175 °C), it exhibits 10 °C/W junction-to-end-cap thermal resistance and 3.0 °C/W thermal impedance at 10 ms - enabling robust surge handling per MIL-STD-750 Method 3012.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 110 V ±5% at IZT = 12 mA - defines precise regulation point for high-voltage reference design |
| Power Dissipation | 5 W @ TEC = 125 °C - supports continuous operation in conduction-cooled chassis environments |
| Dynamic Impedance (ZZT) | 125 Ω @ IZT = 12 mA - determines output voltage stability under load transients |
| Max Reverse Leakage (IR) | 2 μA @ VR = 83.6 V - ensures minimal standby current in high-impedance bias networks |
| Operating Temperature | –65 °C to +175 °C - enables deployment in jet engine controllers and downhole oilfield electronics |
| Forward Voltage | 1.50 V @ 1.0 A - defines conduction loss during forward-biased fault conditions |
| Surge Current (8.3 ms) | 1.2 A - withstands lightning-induced transients per DO-160 Section 22 Level 3 |
Pinout & Package
Package: Hermetically sealed voidless hard glass case with tungsten slugs; end caps are copper with Sn/Pb finish; polarity indicated by cathode band; weight 539 mg; EIA-481-B tape-and-reel compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential node; must handle 1.0 A forward surge without bond-wire fusing |
| Cathode | Current exit terminal in forward bias; Zener breakdown terminal | Marked by band; referenced to system ground or return path; regulates voltage when reverse biased above 110 V |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates internal delamination risk and guarantees >20-year shelf life under MIL-STD-883 Condition B |
| Category I metallurgical bond | Ensures mechanical integrity under 1000 g shock and 20 g RMS vibration per MIL-STD-810H |
| Nonsensitive to ESD | Withstands ≥4 kV HBM per MIL-STD-750 Method 1020 without parameter shift |
| Radiation hardness | Qualified to 100 krad(Si) TID per MicroNote 050 - suitable for low-earth-orbit satellite power rails |
| Triple-layer passivation | Prevents sodium ion migration and surface leakage in high-humidity, high-bias environments |
Applications
| Aerospace Power Distribution | Downhole Telemetry Systems |
|---|---|
|
Use Scenario: Voltage clamping on 100 V DC bus in flight control actuator power modules. IC Role / Device Role / Timing Role: Zener diode acting as overvoltage protection element across bus rail and chassis ground. Use Value: Clamps transients up to 130 V within 100 ns while maintaining <2 μA leakage at nominal 100 V - preventing MOSFET gate oxide rupture. |
Use Scenario: Precision reference for 16-bit ADC biasing in borehole pressure sensor signal conditioning. IC Role / Device Role / Timing Role: Stable 110 V Zener reference source feeding resistive divider network for ratiometric scaling. Use Value: ±5% initial tolerance and <±0.1%/°C tempco ensure <0.25% full-scale error across –55 °C to +175 °C operating range. |
| Radiation-Hardened Instrumentation | Military Vehicle Battery Management |
|
Use Scenario: Regulated bias supply for CMOS SRAM retention circuitry in nuclear command subsystems. IC Role / Device Role / Timing Role: Low-leakage Zener regulator providing clean 110 V standby rail independent of main battery fluctuations. Use Value: 2 μA max reverse leakage at 83.6 V ensures <1 nW standby power draw - critical for multi-year unattended operation. |
Use Scenario: Overvoltage shutdown trigger in 28 V aircraft battery charger with 110 V transient suppression stage. IC Role / Device Role / Timing Role: Zener-based comparator input reference enabling fast (<500 ns) trip response to 110 V surges. Use Value: 125 Ω dynamic impedance ensures predictable threshold hysteresis and eliminates false triggering from line noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4983US | Higher screening level (JANTXV vs JANTX); tighter ΔVZ spec (±3% vs ±5%) and guaranteed 100 krad(Si) TID | Required for Class S spaceflight hardware where single-event latchup immunity is mandated | Select JANTXV1N4983US when radiation hardness certification and tighter voltage tolerance are mandatory |
| 1N4983US | Commercial-grade version; no MIL-PRF-19500 qualification; same electrical specs but no radiation or shock/vibe testing | Suitable only for non-mission-critical ground-based test equipment with ambient temperature operation | Choose 1N4983US for cost-sensitive prototyping where military screening is unnecessary |
Compared with JANTX1N4983US/TR, JANTXV1N4983US adds verified radiation tolerance and tighter voltage tolerance at higher cost and longer lead time, while 1N4983US removes all military screening - making it viable only for benign commercial environments.
Availability
JANTX1N4983US/TR is available at Aetrix Electronics and suitable for aerospace power distribution, downhole telemetry systems, and radiation-hardened instrumentation requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTX1N4983US/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 (now part of Microchip Technology) designs high-reliability analog and mixed-signal semiconductors for defense, aerospace, and industrial markets.
The JANTX1N4983US/TR belongs to Microsemi's MIL-PRF-19500/356 qualified Zener diode family, engineered specifically for voltage regulation in mission-critical systems exposed to extreme temperature, radiation, and mechanical stress.
FAQ
What is the Zener voltage tolerance for JANTX1N4983US/TR?
JANTX1N4983US/TR has a nominal Zener voltage of 110 V with a standard tolerance of ±5%, measured at IZT = 12 mA and TA = 25 °C. This tolerance remains valid across the full –65 °C to +175 °C operating range per MIL-PRF-19500/356 screening requirements. The JANTX1N4983US/TR does not include tighter tolerance suffixes (e.g., "C" or "D") - those apply only to commercial variants.
Does JANTX1N4983US/TR require derating above 125 °C?
Yes, JANTX1N4983US/TR must be derated linearly above 125 °C ambient case temperature (TEC) to zero power at 175 °C. Its specified 5 W rating applies only at TEC = 125 °C. Derating slope is –40 mW/°C, calculated from (5 W)/(175 °C − 125 °C). This requirement is defined in the MAXIMUM RATINGS table of the SD44A datasheet for JANTX1N4983US/TR.
What is the maximum reverse leakage current for JANTX1N4983US/TR?
JANTX1N4983US/TR specifies a maximum reverse leakage current (IR) of 2 μA at VR = 83.6 V and TA = 25 °C. This value is measured per MIL-PRF-19500/356 test method 3011 and remains ≤5 μA across the full –65 °C to +175 °C operating range. No higher leakage values are permitted for JANTX1N4983US/TR in compliance with its military qualification.
Is JANTX1N4983US/TR compatible with lead-free solder reflow?
JANTX1N4983US/TR uses Sn/Pb-finished copper end caps and is qualified for traditional eutectic solder processes only. Its datasheet explicitly states "end caps are Copper with Tin/Lead (Sn/Pb) finish" and makes no mention of Pb-free compatibility. Therefore, JANTX1N4983US/TR is not recommended for lead-free reflow profiles exceeding 220 °C peak temperature, as intermetallic formation may compromise bond integrity.
What package outline does JANTX1N4983US/TR use?
JANTX1N4983US/TR uses the "E" package, also identified as "D-5B" in Microsemi documentation. It features a hermetically sealed voidless glass body with tungsten slugs, cathode band marking, and EIA-481-B tape-and-reel packaging. Dimensions and pad layout are specified on page 4 of SD44A.pdf, confirming compatibility with standard SMT placement equipment calibrated for D-5B footprints.
JANTX1N4983US/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SQ-MELF, E
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 110 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 125 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 83.6 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 1 A
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/356
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- E-MELF
JANTX1N4983US/TR FAQ
1.How can I place an order for JANTX1N4983US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4983US/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 JANTX1N4983US/TR reliable?
The price and inventory of JANTX1N4983US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4983US/TR is usually 5 days.
3.What payment methods are accepted for JANTX1N4983US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4983US/TR transactions.
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4.How is shipping managed for JANTX1N4983US/TR?
JANTX1N4983US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4983US/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 JANTX1N4983US/TR?
For technical support, including JANTX1N4983US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4983US/TR requirements.
6.How does Aetrix verify that JANTX1N4983US/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4983US/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 JANTX1N4983US/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4983US/TR?
All JANTX1N4983US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4983US/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 JANTX1N4983US/TR part is unused and in its original packaging.
Return procedure for JANTX1N4983US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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