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Microchip Technology JANTXV1N4984CUS/TR
- Part No.:
- JANTXV1N4984CUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTXV1N4984CUS/TR.pdf
- Description:
- DIODE ZENER 120V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:3,192
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Product details
Overview
JANTXV1N4984CUS/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. It provides precise 120 V nominal Zener voltage with ±1% tolerance (C suffix), 10 Ω dynamic impedance at 10 mA test current, and operates across –65 °C to +175 °C junction temperature range. It serves as a high-reliability voltage reference or overvoltage clamp in aerospace power conditioning circuits.
For engineers reviewing the JANTXV1N4984CUS/TR datasheet, JANTXV1N4984CUS/TR pinout, JANTXV1N4984CUS/TR application, or JANTXV1N4984CUS/TR equivalent, this part is selected for mission-critical voltage regulation where hermetic sealing, radiation hardness, ESD immunity per MIL-STD-750 Method 1020, and stable Zener characteristics under thermal stress are mandatory design requirements.
Technical Context
This device belongs to the 1N4954US–1N4996US family of MIL-PRF-19500/356 qualified Zener regulators. It uses a voidless hard-glass package with tungsten slugs and copper end caps finished with Sn/Pb, enabling robust thermal conduction (7 °C/W junction-to-end-cap) and mechanical stability under shock/vibration.
Its electrical behavior is defined by a sharp Zener breakdown at 120 V with low dynamic impedance (10 Ω @ IZT = 10 mA), minimal temperature coefficient (+0.100 %/°C), and tightly controlled reverse leakage (≤2 μA @ 91.2 V). The "JANTXV" grade confirms full screening to Level V per MIL-PRF-19500.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 120 V ±1% - Enables precise voltage clamping or reference generation in high-voltage analog monitoring stages. |
| Power Dissipation (PZM) | 5 W @ TEC = 140 °C - Supports continuous regulation in compact, thermally constrained PCB layouts without forced cooling. |
| Dynamic Impedance (ZZT) | 10 Ω @ IZT = 10 mA - Ensures minimal output voltage variation under load transients in feedback-sensing applications. |
| Max Reverse Leakage (IR) | 2 μA @ VR = 91.2 V - Guarantees negligible standby current draw in battery-backed or low-power hold-up circuits. |
| Temp Coefficient (αVZ) | +0.100 %/°C - Predictable, linear drift allows accurate compensation in wide-temperature-range instrumentation. |
| Operating Temperature (TJ) | –65 °C to +175 °C - Qualified for deployment in engine bays, space payloads, and downhole electronics without derating. |
Pinout & Package
Package: Hermetically sealed voidless glass case ("E" or "D-5B") with copper end caps (Sn/Pb finish); cathode indicated by band; weight 539 mg; tape-and-reel compliant per EIA-481-B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to circuit ground or lowest potential node during Zener operation; carries full surge current (1.0 A @ 8.3 ms). |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable 120 V reference when reverse-biased; marked by visible band; interfaces directly with error amplifier inputs or crowbar triggers. |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass construction | Eliminates internal delamination risk under thermal cycling or vacuum exposure-critical for satellite power subsystems. |
| Category I metallurgical bond | Ensures mechanical integrity of die-to-substrate interface under >100 g shock, meeting MIL-PRF-19500/356 mechanical stress requirements. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Withstands human-body-model discharges ≥15 kV without parameter shift-reduces handling controls in cleanroom assembly. |
| Inherent radiation hardness | Validated per MicroNote 050 for total ionizing dose (TID) tolerance up to 100 krad(Si), suitable for low-earth-orbit missions. |
Applications
| Aerospace Power Bus Protection | Downhole Instrumentation Reference |
|---|---|
Use Scenario: Clamping transient spikes on 100–150 V DC power buses in satellite solar array regulators. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to shunt overvoltage events above 120 V. Use Value: Prevents damage to downstream DC-DC converters using its 5 W surge capability and 1.0 A 8.3 ms surge rating. |
Use Scenario: Providing stable voltage reference for pressure/temperature sensor signal conditioning in oil-well logging tools. IC Role / Device Role / Timing Role: Precision 120 V reference source for ratiometric ADC excitation in high-temperature (>150 °C) environments. Use Value: Maintains ±1% accuracy across –65 °C to +175 °C due to tight tolerance and low tempco, eliminating calibration drift. |
| Military Avionics Voltage Monitoring | Radiation-Hardened Test Equipment |
Use Scenario: Monitoring 115 VAC-derived DC rails in flight control computers for undervoltage/overvoltage fault detection. IC Role / Device Role / Timing Role: Zener-based comparator input reference with fail-safe response to rail deviations beyond ±5%. Use Value: JANTXV screening ensures zero latent defects; hermetic seal prevents moisture-induced parametric shift during humidity cycling. |
Use Scenario: Calibrating high-voltage test fixtures used in radiation effects testing labs. IC Role / Device Role / Timing Role: Primary 120 V reference standard traceable to NIST via Microsemi's certified test data. Use Value: Radiation hardness and long-term stability (<0.1% ΔVZ after 1000 hrs life test) enable metrology-grade repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4984BTR | Same 120 V Zener voltage but ±5% tolerance (no C suffix); identical package and screening level. | Acceptable where tighter regulation is not required-e.g., non-critical overvoltage cutoff rather than precision reference. | Select JANTXV1N4984BTR only if system-level tolerance budget permits ±5% variation at 120 V. |
| CDLL120F | Commercial-grade 120 V Zener (±5%), DO-213AA glass package, no MIL screening or radiation data. | Limited to ground-based industrial systems with ambient temperature <125 °C and no radiation exposure. | CDLL120F is unsuitable for aerospace or defense use; choose only for cost-sensitive, non-mission-critical designs. |
Compared with JANTXV1N4984CUS/TR, JANTXV1N4984BTR trades ±1% tolerance for broader availability and lower unit cost, while CDLL120F omits hermetic sealing, MIL qualification, and radiation assurance-making it incompatible with flight or harsh-environment deployments.
Availability
JANTXV1N4984CUS/TR is available at Aetrix Electronics and suitable for aerospace power bus protection, downhole instrumentation reference, and military avionics voltage monitoring requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTXV1N4984CUS/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 JANTXV1N4984CUS/TR belongs to Microsemi's legacy MIL-PRF-19500/356 qualified Zener diode family, engineered specifically for voltage regulation in safety-critical systems where failure is not an option.
FAQ
What is the Zener voltage tolerance of JANTXV1N4984CUS/TR?
JANTXV1N4984CUS/TR has a nominal Zener voltage of 120 V with a tolerance of ±1%, indicated by the "C" suffix in the part number. This tight tolerance is verified per MIL-PRF-19500/356 screening and supports precision voltage reference applications where regulation stability is critical.
Does JANTXV1N4984CUS/TR require derating above 140 °C?
Yes, JANTXV1N4984CUS/TR must be derated linearly above 140 °C end-cap temperature, reaching zero power dissipation at 175 °C. Its thermal resistance is 7 °C/W junction-to-end-cap, so proper heatsinking or board layout is essential to maintain safe junction temperatures under full 5 W load.
Is JANTXV1N4984CUS/TR compatible with lead-free soldering processes?
No-JANTXV1N4984CUS/TR features Sn/Pb-finished copper end caps and is not qualified for lead-free reflow. Its termination finish and glass-to-metal seal are optimized for eutectic solder profiles; lead-free processing may compromise hermeticity or cause intermetallic growth.
What is the maximum surge current rating for JANTXV1N4984CUS/TR?
JANTXV1N4984CUS/TR supports a non-repetitive peak surge current of 1.0 A for an 8.3 ms half-sine wave, as specified in the Electrical Characteristics table. This enables reliable clamping of short-duration transients in MIL-STD-704 or DO-160-compliant power systems.
How does the radiation hardness of JANTXV1N4984CUS/TR compare to commercial Zeners?
JANTXV1N4984CUS/TR exhibits inherent radiation hardness validated per MicroNote 050, with demonstrated tolerance to ≥100 krad(Si) total ionizing dose. Commercial Zeners lack this characterization and typically degrade significantly above 10 krad(Si), making JANTXV1N4984CUS/TR essential for space-grade applications.
JANTXV1N4984CUS/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):
- 120 V
- Tolerance:
- ±2%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 91.2 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
JANTXV1N4984CUS/TR FAQ
1.How can I place an order for JANTXV1N4984CUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4984CUS/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 JANTXV1N4984CUS/TR reliable?
The price and inventory of JANTXV1N4984CUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4984CUS/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4984CUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4984CUS/TR transactions.
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4.How is shipping managed for JANTXV1N4984CUS/TR?
JANTXV1N4984CUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4984CUS/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 JANTXV1N4984CUS/TR?
For technical support, including JANTXV1N4984CUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4984CUS/TR requirements.
6.How does Aetrix verify that JANTXV1N4984CUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4984CUS/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 JANTXV1N4984CUS/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4984CUS/TR?
All JANTXV1N4984CUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4984CUS/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 JANTXV1N4984CUS/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4984CUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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