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Microchip Technology JANS1N4983CUS/TR
- Part No.:
- JANS1N4983CUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANS1N4983CUS/TR.pdf
- Description:
- DIODE ZENER 110V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:3,499
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Product details
Overview
JANS1N4983CUS/TR from Microsemi is a hermetically sealed, voidless-glass surface-mount 5 W Zener diode with nominal Zener voltage of 110 V, ±2% tolerance (C suffix), and maximum power dissipation of 5 W at TEC = 140 °C. It operates from −65 °C to +175 °C, features 125 Ω dynamic impedance at 12 mA test current, and delivers stable voltage regulation in high-reliability military and aerospace power conditioning circuits.
For engineers reviewing the JANS1N4983CUS/TR datasheet, JANS1N4983CUS/TR pinout, JANS1N4983CUS/TR application, or JANS1N4983CUS/TR equivalent, this part serves as a MIL-PRF-19500/356 qualified, radiation-hardened, ESD-insensitive voltage reference for critical analog supply rails, overvoltage clamping, and precision biasing where long-term parametric stability and zero-failure operation are mandatory.
Technical Context
This device belongs to the JANS-classified 1N4954US–1N4996US series, utilizing Category I internal metallurgical bonds and triple-layer passivation for enhanced reliability. Its voidless-glass hermetic seal ensures zero moisture ingress and immunity to thermal cycling-induced delamination under extreme environmental stress.
The JANS1N4983CUS/TR exhibits a temperature coefficient of +0.100 %/°C at 12 mA, reverse leakage ≤2 μA at 83.6 V, and surge current rating of 1.2 A (8.3 ms square wave). Its thermal resistance is 7 °C/W junction-to-end-cap, enabling robust thermal management in compact SMT layouts without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 110 V ±2% at IZT = 12 mA - precise reference for 100–120 V rail stabilization |
| Power Dissipation | 5 W @ TEC = 140 °C - supports continuous operation in high-ambient industrial/military enclosures |
| Dynamic Impedance (ZZT) | 125 Ω @ IZT = 12 mA - low AC impedance ensures minimal output ripple under varying load |
| Max Reverse Leakage (IR) | 2 μA @ VR = 83.6 V - negligible standby current in high-impedance bias networks |
| Operating Temperature | −65 °C to +175 °C - validated for space-grade thermal cycling and extended-life avionics |
| Thermal Resistance (RθJC) | 7 °C/W junction-to-end-cap - enables direct heat sinking via end-cap solder pads |
| Surge Current (IZSM) | 1.2 A (8.3 ms) - withstands transient overvoltage events per MIL-STD-1275 |
Pinout & Package
Package: Hermetically sealed voidless glass "E" package (also designated D-5B), with copper end caps finished in Sn/Pb, cathode indicated by band, weight 539 mg. Tape-and-reel compliant with EIA-481-B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential node during Zener operation |
| Cathode | Zener breakdown terminal | Connected to regulated positive rail; marked with band for polarity identification |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates moisture-induced parameter drift and corrosion failure in 100% RH or vacuum environments |
| Category I metallurgical bond | Guarantees mechanical integrity under shock/vibration per MIL-STD-883 Method 2002 |
| Triple-layer passivation | Prevents surface leakage and contamination-induced breakdown degradation |
| Nonsensitive to ESD | Qualified to MIL-STD-750 Method 1020 - no handling precautions required beyond standard ESD-safe practices |
| Inherent radiation hardness | Validated per MicroNote 050 - suitable for low-dose-rate space applications without shielding |
Applications
| Aerospace Power Conditioning | Military Avionics Reference |
|---|---|
|
Use Scenario: Regulating auxiliary 100 V DC bus in satellite power distribution units exposed to thermal cycling and radiation. IC Role / Device Role / Timing Role: Zener voltage reference and overvoltage clamp protecting downstream DC-DC converters. Use Value: Maintains ±2% regulation across −65 °C to +175 °C with zero parametric shift after 100 krad(Si) total ionizing dose. |
Use Scenario: Providing stable bias voltage for radar receiver front-end amplifiers in airborne electronic warfare systems. IC Role / Device Role / Timing Role: Precision voltage reference for gain-setting networks and ADC reference dividers. Use Value: Delivers <2 μA leakage at 83.6 V, ensuring <0.01% gain error contribution in high-impedance feedback paths. |
| Spacecraft Battery Management | Nuclear Instrumentation Biasing |
|
Use Scenario: Clamping cell voltage in Li-ion battery packs for launch vehicle telemetry modules operating in vacuum. IC Role / Device Role / Timing Role: Overvoltage protection element in redundant battery monitoring circuits. Use Value: Withstands 1.2 A surge current (8.3 ms) without degradation, meeting MIL-STD-1275E transient immunity requirements. |
Use Scenario: Generating stable high-voltage bias for photomultiplier tube anodes in radiation detection payloads. IC Role / Device Role / Timing Role: High-stability Zener reference in ultra-low-noise HV supply feedback loops. Use Value: 125 Ω dynamic impedance minimizes noise coupling into sensitive analog signal chains at 110 V output. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4983CUS/TR | Same electrical specs; rated to JANTXV level (−65 °C to +175 °C, 100% screening, 1000-hr burn-in) | Required for programs specifying JANTXV qualification (e.g., DoD Class H) | Select JANTXV1N4983CUS/TR when full MIL-PRF-19500/356 JANTXV screening is mandated |
| 1N4983CUS/TR | Commercial-grade version; identical Zener parameters but no MIL-qualified screening or radiation data | Suitable only for non-mission-critical industrial prototypes or ground-test hardware | Choose 1N4983CUS/TR for cost-sensitive development where MIL-qualified reliability is not required |
Compared with JANS1N4983CUS/TR, the JANTXV variant adds full military screening and burn-in without altering Zener performance, while the commercial 1N4983CUS/TR omits all MIL-qualified testing and radiation assurance-making it unsuitable for flight or deployed systems.
Availability
JANS1N4983CUS/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, military avionics reference, and spacecraft battery management requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANS1N4983CUS/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 defense, aerospace, and industrial markets.
The JANS1N4983CUS/TR belongs to Microsemi's legacy MIL-PRF-19500/356 qualified Zener diode family, engineered specifically for zero-failure voltage regulation in mission-critical systems operating under extreme thermal, radiation, and mechanical stress.
FAQ
What is the Zener voltage tolerance of JANS1N4983CUS/TR?
The JANS1N4983CUS/TR has a nominal Zener voltage of 110 V with ±2% tolerance, indicated by the "C" suffix per Microsemi's standard coding. This tolerance is guaranteed over the full operating temperature range of −65 °C to +175 °C and applies at the specified test current of 12 mA.
Is JANS1N4983CUS/TR compatible with lead-free reflow processes?
JANS1N4983CUS/TR uses Sn/Pb finish on its copper end caps and is not qualified for lead-free reflow. Its maximum peak reflow temperature is limited to 235 °C per MIL-STD-202 Method 210, and exposure above this risks compromising the hermetic glass seal integrity.
Does JANS1N4983CUS/TR require derating above 140 °C case temperature?
Yes. JANS1N4983CUS/TR must be linearly derated from 5 W at TEC = 140 °C to 0 W at 175 °C. For example, at 155 °C case temperature, allowable power dissipation is reduced to 2.5 W to maintain junction temperature within safe limits.
What is the cathode marking convention for JANS1N4983CUS/TR?
JANS1N4983CUS/TR uses a visible band on the glass body to indicate the cathode terminal. This band aligns with the cathode end cap and must be oriented toward the higher-potential node in the circuit to enable proper Zener breakdown operation.
How does the radiation hardness of JANS1N4983CUS/TR compare to commercial Zeners?
JANS1N4983CUS/TR is inherently radiation-hardened per Microsemi MicroNote 050, exhibiting no parametric degradation up to 100 krad(Si) total ionizing dose. Commercial Zeners lack this characterization and typically fail catastrophically or exhibit significant VZ shift above 5 krad(Si).
JANS1N4983CUS/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
JANS1N4983CUS/TR FAQ
1.How can I place an order for JANS1N4983CUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4983CUS/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 JANS1N4983CUS/TR reliable?
The price and inventory of JANS1N4983CUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4983CUS/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4983CUS/TR?
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4.How is shipping managed for JANS1N4983CUS/TR?
JANS1N4983CUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4983CUS/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 JANS1N4983CUS/TR?
For technical support, including JANS1N4983CUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4983CUS/TR requirements.
6.How does Aetrix verify that JANS1N4983CUS/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4983CUS/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 JANS1N4983CUS/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4983CUS/TR?
All JANS1N4983CUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4983CUS/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 JANS1N4983CUS/TR part is unused and in its original packaging.
Return procedure for JANS1N4983CUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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