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Microchip Technology JANTXV1N4980DUS/TR
- Part No.:
- JANTXV1N4980DUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTXV1N4980DUS/TR.pdf
- Description:
- DIODE ZENER 82V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:3,653
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Product details
Overview
JANTXV1N4980DUS/TR from Microsemi is a military-grade, hermetically sealed surface-mount Zener diode rated for 5 W power dissipation at 140 °C end-cap temperature, with nominal Zener voltage of 82 V ±1% (D suffix), dynamic impedance of 80 Ω at 15 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 power regulation circuits.
For engineers reviewing the JANTXV1N4980DUS/TR datasheet, JANTXV1N4980DUS/TR pinout, JANTXV1N4980DUS/TR application, or JANTXV1N4980DUS/TR equivalent, key selection criteria include its MIL-PRF-19500/356 qualification, voidless-glass hermetic package, Category I metallurgical bond, radiation-hardened construction, and 1% voltage tolerance - critical for aerospace, defense, and downhole instrumentation designs.
Technical Context
This device operates in reverse breakdown mode with tightly controlled Zener voltage regulation across 10–50% of IZM (1.8 A), exhibiting ΔVZ ≤ 6.6 V per Note 1. Its thermal resistance is 7 °C/W junction-to-end-cap, enabling stable regulation under transient thermal loads up to 175 °C junction temperature.
The diode features triple-layer passivation and nonsensitive ESD performance per MIL-STD-750 Method 1020. Its cathode band polarity marking and Sn/Pb-finished copper end caps support reliable reflow soldering in high-reliability SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 82 V ±1% at 15 mA - enables precise reference generation in regulated supplies requiring tight tolerance. |
| Power Dissipation | 5 W @ TEC = 140 °C - supports continuous operation in high-temperature environments without derating until 175 °C. |
| Dynamic Impedance (ZZ) | 80 Ω @ IZT = 15 mA - ensures low output impedance for stable regulation under varying load currents. |
| Max Reverse Leakage (IR) | 2 μA @ VR = 62.2 V - guarantees minimal quiescent current draw in standby or low-power monitoring circuits. |
| Surge Current (IZSM) | 1.8 A @ 8.3 ms - withstands short-duration transients common in avionics power bus protection. |
| Temp Coefficient (αVZ) | +0.100 %/°C - predictable positive drift allows accurate compensation in wide-temperature-range systems. |
| Forward Voltage (VF) | 1.50 V @ 1.0 A - defines forward conduction behavior during fault conditions or bidirectional clamping configurations. |
Pinout & Package
Package: Hermetically sealed voidless hard glass case with tungsten slugs, "E" outline (also designated D-5B), surface-mount configuration with two copper end caps finished in Sn/Pb. Cathode identified by band marking. Weight: 539 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reverse-biased input terminal | Connected to lower-potential node in shunt regulator topology; carries full load current during regulation. |
| Cathode | Reverse-biased output terminal | Connected to regulated voltage rail; band-marked end cap provides visual polarity identification for automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates internal moisture and particle ingress, ensuring long-term parameter stability in vacuum or corrosive environments. |
| Category I metallurgical bond | Provides mechanical integrity and thermal continuity between die and slug, supporting 5 W dissipation without delamination. |
| MIL-PRF-19500/356 qualification (JANTXV) | Validated reliability for Class V (space) and Class H (military) applications, including burn-in, life test, and radiation screening. |
| Triple-layer passivation | Reduces surface leakage and enhances immunity to humidity-induced parameter shift in high-humidity operational profiles. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Enables handling and assembly without special ESD controls, reducing manufacturing overhead in cleanroom or field-repair workflows. |
Applications
| Aerospace Power Bus Protection | Downhole Instrumentation Reference |
|---|---|
|
Use Scenario: Clamping transient spikes on 28 V DC aircraft power distribution networks during load dump or lightning-induced surges. IC Role / Device Role / Timing Role: Shunt voltage clamp placed across bus rails to limit peak voltage to safe levels for downstream avionics. Use Value: Withstands 1.8 A surge for 8.3 ms and maintains 82 V regulation within ±1%, preventing damage to flight-critical controllers. |
Use Scenario: Providing stable 82 V bias for high-voltage sensor front-ends in oil/gas well logging tools operating at 175 °C ambient. IC Role / Device Role / Timing Role: Precision Zener reference source for analog signal conditioning circuitry exposed to extreme thermal cycling. Use Value: Operates continuously from –65 °C to +175 °C with <2 μA leakage at 62.2 V, ensuring accuracy over full downhole temperature profile. |
| Radiation-Hardened Telemetry Systems | Military Vehicle Power Conditioning |
|
Use Scenario: Voltage reference in satellite telemetry modules where single-event effects must not compromise calibration integrity. IC Role / Device Role / Timing Role: Primary voltage standard for ADC reference dividers and DAC feedback paths in space-grade data acquisition units. Use Value: Inherently radiation-hard per MicroNote 050, maintaining 82 V ±1% regulation after total ionizing dose exposure exceeding 100 krad(Si). |
Use Scenario: Overvoltage protection in 24 V vehicle electronic control units subjected to ISO 7637-2 pulse 5a/b transients. IC Role / Device Role / Timing Role: Fast-response shunt regulator absorbing energy from alternator load-dump events. Use Value: Delivers 5 W steady-state dissipation and 1.8 A surge capability in compact D-5B package, fitting constrained under-hood PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4980US | No tolerance suffix → ±5% VZ (82 V ±4.1 V); same package, power rating, and temperature range. | Suitable for non-critical biasing where tighter regulation is unnecessary; lower cost and broader availability. | Select when system-level tolerance budget allows ±5% variation and radiation hardness remains required. |
| CDP1N4980DUS | Commercial-grade (non-military) version; identical electrical specs but no MIL-PRF-19500/356 screening or radiation assurance. | Applicable in industrial or commercial high-temp environments lacking formal qualification requirements. | Choose for cost-sensitive programs where extended temperature operation is needed but MIL-spec testing is not mandated. |
Compared with JANTXV1N4980DUS/TR, JANTXV1N4980US trades 1% voltage precision for broader tolerance and reduced screening rigor, while CDP1N4980DUS retains identical electrical behavior but omits military qualification - making the TR-suffixed part uniquely suited for mission-critical systems demanding both precision and assured reliability.
Availability
JANTXV1N4980DUS/TR is available at Aetrix Electronics and suitable for aerospace power bus protection, downhole instrumentation reference, and radiation-hardened telemetry systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JANTXV1N4980DUS/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 JANTXV1N4980DUS/TR belongs to Microsemi's military-qualified Zener diode family designed for precision voltage regulation in harsh-environment applications where failure is not an option.
FAQ
What is the Zener voltage tolerance of JANTXV1N4980DUS/TR?
JANTXV1N4980DUS/TR has a nominal Zener voltage of 82 V with ±1% tolerance, indicated by the "D" suffix per Microsemi's standard coding. This tolerance is verified at 25 °C with 15 mA test current and applies across the full operating temperature range of –65 °C to +175 °C, as confirmed in the SD44A datasheet revision E.
Is JANTXV1N4980DUS/TR qualified to MIL-PRF-19500/356?
Yes, JANTXV1N4980DUS/TR is fully qualified to MIL-PRF-19500/356 as a JANTXV-grade device. It undergoes rigorous screening including burn-in, life test, and parameter verification per the specification, and is documented in Microsemi's Scottsdale Division data sheet SD44A for the 1N4954US–1N4996US series.
What is the thermal resistance of JANTXV1N4980DUS/TR?
JANTXV1N4980DUS/TR has a thermal resistance of 7 °C/W junction-to-end-cap, measured at TEC = 140 °C. This value enables 5 W power dissipation with controlled temperature rise and linear derating to zero at 175 °C, as specified in the Maximum Ratings table of the SD44A datasheet.
Does JANTXV1N4980DUS/TR have radiation hardness certification?
Yes, JANTXV1N4980DUS/TR is inherently radiation-hardened per Microsemi MicroNote 050. It exhibits robust performance under total ionizing dose (TID) exposure exceeding 100 krad(Si), making it suitable for satellite and nuclear instrumentation applications where radiation-induced parameter shift must be minimized.
What package type is used for JANTXV1N4980DUS/TR?
JANTXV1N4980DUS/TR uses the "E" package (also designated D-5B), a hermetically sealed voidless glass surface-mount outline with tungsten slugs and Sn/Pb-finished copper end caps. The cathode is marked by a visible band, and the device complies with EIA-481-B tape-and-reel packaging standards.
JANTXV1N4980DUS/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):
- 82 V
- Tolerance:
- ±1%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 62.2 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
JANTXV1N4980DUS/TR FAQ
1.How can I place an order for JANTXV1N4980DUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4980DUS/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 JANTXV1N4980DUS/TR reliable?
The price and inventory of JANTXV1N4980DUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4980DUS/TR is usually 5 days.
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Once your JANTXV1N4980DUS/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 JANTXV1N4980DUS/TR?
For technical support, including JANTXV1N4980DUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4980DUS/TR requirements.
6.How does Aetrix verify that JANTXV1N4980DUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4980DUS/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 JANTXV1N4980DUS/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4980DUS/TR?
All JANTXV1N4980DUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4980DUS/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 JANTXV1N4980DUS/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4980DUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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