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Microchip Technology JANTX1N4983CUS/TR
- Part No.:
- JANTX1N4983CUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTX1N4983CUS/TR.pdf
- Description:
- DIODE ZENER 110V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:4,430
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Product details
Overview
JANTX1N4983US/TR from Microsemi is a military-grade, voidless hermetically sealed surface-mount Zener diode rated for 5 W power dissipation at 140 °C end-cap temperature, with nominal Zener voltage of 110 V ±5%, dynamic impedance of 125 Ω at 12 mA test current, and operating junction temperature range from –65 °C to +175 °C. It serves as a precision voltage reference and overvoltage clamp in high-reliability aerospace 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 mission-critical voltage regulation where ESD immunity (MIL-STD-750 Method 1020), radiation hardness, and stable Zener voltage across wide temperature and current ranges are mandatory design requirements.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation over 10%–50% of maximum Zener current (IZM = 1.2 A). Its voidless glass package with internal Category I metallurgical bond ensures mechanical robustness and hermetic reliability under thermal cycling and shock.
Electrical behavior is defined by three key parameters: Zener voltage VZ = 110 V at IZT = 12 mA, dynamic impedance ZZ = 125 Ω at IZT, and temperature coefficient αVZ = +0.100 %/°C - indicating positive drift with temperature, critical for bias network stability in analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 110 V ±5% at 12 mA - defines regulated output voltage under nominal bias conditions |
| Power Dissipation | 5 W @ TEC = 140 °C - sets maximum continuous thermal load before derating begins |
| Dynamic Impedance (ZZ) | 125 Ω at IZT = 12 mA - determines regulation error under varying load current |
| Max Reverse Leakage (IR) | 2 μA at VR = 83.6 V - ensures minimal parasitic current in standby or high-impedance sensing |
| Junction Temperature Range | –65 °C to +175 °C - enables operation in extreme environments including space and jet engine bays |
| Forward Voltage (VF) | 1.50 V at 1.0 A - defines conduction loss when used bidirectionally or in series protection |
| Surge Current (IZSM) | 1.2 A at 8.3 ms square wave - supports transient overvoltage clamping without failure |
Pinout & Package
Package: Hermetically sealed voidless hard glass case with tungsten slugs, "E" outline (also designated D-5B), surface-mount configuration with copper end caps finished in Sn/Pb. Cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased input terminal | Connected to lower-potential node in Zener regulator or clamp configuration |
| Cathode | Reverse-biased output terminal | Connected to regulated voltage rail; marked by visible band on glass body |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates internal voids to prevent moisture ingress and long-term parameter drift in humid or vacuum environments |
| Category I metallurgical bond | Ensures mechanical integrity of internal die attachment under sustained thermal cycling and vibration stress |
| Nonsensitive to ESD | Qualified per MIL-STD-750 Method 1020 - no special handling required during board assembly or field service |
| Radiation-hardened construction | Documented radiation tolerance per Microsemi MicroNote 050 - suitable for low-earth orbit and avionics applications |
| Tape-and-reel packaging | Complies with EIA-481-B standard - enables automated SMT placement without manual handling or contamination risk |
Applications
| Aerospace Power Bus Regulation | Avionics Sensor Bias Reference |
|---|---|
Use Scenario: Stabilizing 110 V DC bus in satellite power distribution units exposed to thermal cycling and radiation. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference and overvoltage clamp. Use Value: Maintains ±5% regulation over –65 °C to +175 °C while surviving 100 krad(Si) total ionizing dose per MicroNote 050. |
Use Scenario: Providing stable bias voltage for piezoresistive pressure transducers in flight control systems. IC Role / Device Role / Timing Role: Precision Zener reference establishing fixed excitation voltage for ratiometric sensor outputs. Use Value: Delivers <2 μA leakage at 83.6 V, minimizing offset error in high-impedance bridge interfaces. |
| Military Radar Transmitter Protection | High-Temperature Downhole Instrumentation |
Use Scenario: Clamping transient surges on RF amplifier supply rails in ground-based radar systems. IC Role / Device Role / Timing Role: Surge-absorbing Zener clamp triggered by 8.3 ms square-wave transients up to 1.2 A. Use Value: Withstands repetitive 1.2 A surge events without degradation due to triple-layer passivation and voidless glass construction. |
Use Scenario: Regulating auxiliary supply in oil-well logging tools operating continuously at 175 °C ambient. IC Role / Device Role / Timing Role: Primary shunt regulator maintaining stable voltage despite extreme thermal gradients. Use Value: Operates reliably at full 5 W rating up to 140 °C end-cap temperature, with linear derating to zero at 175 °C junction limit. |
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/TR | Higher screening level: JANTXV per MIL-PRF-19500/356 includes additional burn-in and parametric testing | Required for Class V (space-qualified) programs where extended life testing and lot traceability are mandated | Select JANTXV1N4983US/TR when full MIL-PRF-19500/356 Class V compliance is contractually required |
| 1N4983US/TR | Commercial-grade version; not subjected to JAN/JANTX-level screening or radiation characterization | Suitable only for non-mission-critical industrial applications with ambient temperatures below 125 °C | Choose 1N4983US/TR for cost-sensitive terrestrial designs where radiation hardness and extreme temperature operation are unnecessary |
Compared with JANTX1N4983US/TR, JANTXV1N4983US/TR adds burn-in and tighter lot acceptance testing for space use, while 1N4983US/TR omits military screening entirely - making JANTX1N4983US/TR the optimal balance of proven reliability and procurement flexibility for defense-grade ground and airborne systems.
Availability
JANTX1N4983US/TR is available at Aetrix Electronics and suitable for aerospace power regulation, avionics sensor biasing, and military radar protection 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) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The JANTX1N4983US/TR belongs to Microsemi's legacy MIL-PRF-19500/356 qualified Zener diode family, engineered specifically for voltage regulation in mission-critical systems where failure is not an option.
FAQ
What is the Zener voltage tolerance for JANTX1N4983US/TR?
The JANTX1N4983US/TR has a nominal Zener voltage of 110 V with a standard tolerance of ±5%, as specified in the Microsemi SD44A datasheet. This tolerance applies at 25 °C and IZT = 12 mA, and remains valid across the full operating temperature range per MIL-PRF-19500/356 qualification.
Does JANTX1N4983US/TR require special ESD handling during assembly?
No - JANTX1N4983US/TR is nonsensitive to electrostatic discharge per MIL-STD-750 Method 1020, and does not require ESD-safe workstations, wrist straps, or conductive packaging during handling or SMT placement. Its voidless glass construction and metallurgical bond inherently suppress ESD-induced damage.
What is the maximum continuous Zener current for JANTX1N4983US/TR?
The maximum continuous Zener current (IZM) for JANTX1N4983US/TR is 1.2 A, derived from its 5 W power rating and 110 V Zener voltage (P = V × I). This value assumes operation at TEC = 140 °C; current must be linearly derated above that temperature to zero at 175 °C junction limit.
Is JANTX1N4983US/TR compatible with lead-free reflow profiles?
JANTX1N4983US/TR features Sn/Pb terminations and is not qualified for lead-free reflow. Its glass-to-metal seal and internal metallurgy are optimized for eutectic solder processes. For RoHS-compliant designs, consult Microchip's current-generation alternatives or verify compatibility with controlled thermal profiling per J-STD-020.
How is cathode polarity identified on JANTX1N4983US/TR?
The cathode of JANTX1N4983US/TR is identified by a visible band on the hermetically sealed voidless glass body. This band aligns with the cathode terminal and must be oriented toward the higher-potential node in shunt regulator or clamp configurations to ensure proper reverse-bias operation.
JANTX1N4983CUS/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:
- ±2%
- 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
JANTX1N4983CUS/TR FAQ
1.How can I place an order for JANTX1N4983CUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4983CUS/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 JANTX1N4983CUS/TR reliable?
The price and inventory of JANTX1N4983CUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4983CUS/TR is usually 5 days.
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JANTX1N4983CUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4983CUS/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 JANTX1N4983CUS/TR?
For technical support, including JANTX1N4983CUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4983CUS/TR requirements.
6.How does Aetrix verify that JANTX1N4983CUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTX1N4983CUS/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 JANTX1N4983CUS/TR meets industry standards.
7.What is the process for return or replacement of JANTX1N4983CUS/TR?
All JANTX1N4983CUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4983CUS/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 JANTX1N4983CUS/TR part is unused and in its original packaging.
Return procedure for JANTX1N4983CUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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