My Inquiry
My Account
Microchip Technology JANTXV1N4986DUS/TR
- Part No.:
- JANTXV1N4986DUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTXV1N4986DUS/TR.pdf
- Description:
- DIODE ZENER 150V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:8,729
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANTXV1N4986DUS/TR from Microsemi is a military-grade, hermetically sealed surface-mount Zener diode with 150 V nominal zener voltage, 5 W power rating at 140 °C end-cap temperature, ±5% tolerance, and 1.5 V forward voltage at 1.0 A. It delivers stable voltage regulation in high-reliability aerospace power conditioning, radiation-hardened sensor biasing, and avionics reference circuits.
For engineers reviewing the JANTXV1N4986DUS/TR datasheet, JANTXV1N4986DUS/TR pinout, JANTXV1N4986DUS/TR application, or JANTXV1N4986DUS/TR equivalent, key selection criteria include its voidless-glass package, -65 °C to +175 °C operating range, 7 °C/W junction-to-end-cap thermal resistance, MIL-PRF-19500/356 qualification, and 114 V minimum regulation voltage at 10%–50% IZM.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, maintaining stable output across wide current (12 mA to 930 mA) and temperature (-65 °C to +175 °C) ranges. Its internal Category I metallurgical bond and triple-layer passivation ensure long-term reliability under thermal cycling and mechanical stress.
The JANTXV1N4986DUS/TR exhibits 330 Ω dynamic impedance at 10 mA test current and 1500 Ω at 1 mA knee current, with a temperature coefficient of +0.105 %/°C - enabling predictable drift compensation in high-stability analog references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 150 V nominal at 8 mA; minimum 114 V over 10–50% IZM, ensuring robust regulation margin in supply rails. |
| Power Dissipation | 5 W at TEC = 140 °C; derates linearly to zero at 175 °C - defines maximum continuous thermal load in conduction-cooled layouts. |
| Dynamic Impedance | 330 Ω at IZT = 8 mA; 1500 Ω at IZK = 1 mA - determines AC ripple rejection and regulation sensitivity near knee. |
| Reverse Leakage | 2 μA max at 114 V and 25 °C - ensures minimal standby current in high-impedance bias networks. |
| Thermal Resistance | 7 °C/W junction-to-end-cap - enables accurate junction temperature estimation using end-cap thermometry. |
| Temperature Coefficient | +0.105 %/°C at IZT - quantifies voltage drift per degree for stability-critical reference designs. |
| Surge Current | 1.0 A peak (8.3 ms square wave) - supports transient overvoltage clamping without degradation. |
Pinout & Package
Package: Hermetically sealed voidless hard glass case with tungsten slugs; "E" package (also designated D-5B); cathode indicated by band; copper end caps with Sn/Pb finish; weight 539 mg; EIA-481-B tape & reel compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side reference node | Connected to system ground or lowest potential; carries full forward current up to 1.0 A (VF ≤ 1.5 V). |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input rail; sinks reverse current to maintain 150 V reference; marked by visible band on glass body. |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates moisture ingress and internal delamination - critical for >20-year field life in space-grade systems. |
| MIL-PRF-19500/356 JANTXV qualification | Validated screening for burn-in, temperature cycling, and hermeticity - required for DoD and NASA Class H applications. |
| Category I metallurgical bond | Ensures mechanical integrity under shock/vibration up to 100 g - maintains electrical continuity in launch environments. |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Withstands ≥4 kV HBM without parameter shift - simplifies handling in cleanroom assembly lines. |
| Inherent radiation hardness | Specified per MicroNote 050 - retains regulation performance after 100 krad(Si) total ionizing dose exposure. |
Applications
| Aerospace Power Conditioning | Radiation-Hardened Sensor Biasing |
|---|---|
Use Scenario: Regulating unregulated 28 V DC bus in satellite power distribution units under thermal vacuum and vibration. IC Role / Device Role / Timing Role: Shunt voltage regulator providing stable 150 V reference for high-voltage DC-DC converter feedback loops. Use Value: Maintains ±5% regulation across -65 °C to +175 °C with <2 μA leakage, preventing converter instability during orbital thermal swings. | Use Scenario: Supplying precise bias voltage to radiation-tolerant photodiode arrays in planetary lander spectrometers. IC Role / Device Role / Timing Role: High-stability Zener reference establishing calibrated photocurrent measurement thresholds. Use Value: +0.105 %/°C tempco and 330 Ω dynamic impedance enable sub-0.1% gain error over mission lifetime despite cumulative TID exposure. |
| Avionics Reference Circuits | High-Reliability Industrial Control |
Use Scenario: Generating 150 V reference for analog-to-digital converter front-ends in flight control computers. IC Role / Device Role / Timing Role: Precision shunt regulator stabilizing ADC reference voltage against supply ripple and load transients. Use Value: 1.0 A surge rating and 7 °C/W thermal resistance allow reliable operation during engine-start voltage spikes without thermal runaway. | Use Scenario: Protecting programmable logic controller (PLC) analog I/O modules from overvoltage events in oilfield telemetry systems. IC Role / Device Role / Timing Role: Clamping transient surges while maintaining tight DC regulation during normal operation. Use Value: Dual-mode functionality - regulates at 150 V under steady state, clamps >167 V transients with 1.0 A 8.3 ms surge capability - reduces need for external TVS stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4986US | No TR suffix; bulk packaging instead of tape-and-reel; identical electrical specs and MIL qualification. | Suitable for manual prototyping or low-volume hand-soldered assemblies where reel feeding is unnecessary. | Select JANTXV1N4986US when automated SMT placement is not required and cost-per-unit is prioritized over logistics efficiency. |
| 1N4986US | Commercial-grade (non-JANTXV); lacks MIL-PRF-19500 screening, radiation hardness documentation, and Category I bond validation. | Restricted to non-safety-critical industrial or test equipment where extended temperature and radiation tolerance are not mandated. | Choose 1N4986US only for cost-sensitive terrestrial applications with ambient temperature limits below +125 °C and no radiation exposure requirements. |
Compared with JANTXV1N4986US and 1N4986US, the JANTXV1N4986DUS/TR provides guaranteed tape-and-reel delivery for automated production, full military screening traceability, and validated performance under extreme environmental stress - making it the sole option for flight-certified hardware.
Availability
JANTXV1N4986DUS/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, radiation-hardened sensor biasing, and avionics reference circuits requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTXV1N4986DUS/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 JANTXV1N4986DUS/TR belongs to Microsemi's military-qualified Zener diode family designed for ultra-stable voltage regulation in mission-critical systems where failure is not an option.
FAQ
What is the Zener voltage tolerance of JANTXV1N4986DUS/TR?
The JANTXV1N4986DUS/TR has a nominal Zener voltage of 150 V with a standard tolerance of ±5%, as defined in MIL-PRF-19500/356. This tolerance applies across the full operating temperature range of -65 °C to +175 °C and ensures consistent regulation performance in high-reliability applications without requiring post-installation calibration.
Does JANTXV1N4986DUS/TR require heatsinking in 5 W operation?
JANTXV1N4986DUS/TR is rated for 5 W dissipation at an end-cap temperature (TEC) of 140 °C, with thermal resistance of 7 °C/W junction-to-end-cap. Heatsinking is not mandatory if PCB copper area and ambient conditions maintain TEC ≤ 140 °C; however, thermal vias and 1–2 in² of 2-oz copper are recommended for sustained 5 W operation in enclosed enclosures.
Is JANTXV1N4986DUS/TR compatible with lead-free reflow processes?
JANTXV1N4986DUS/TR features Sn/Pb-finished copper end caps and is qualified for traditional eutectic solder reflow. While it can survive lead-free reflow profiles (peak ≤ 245 °C), Microsemi does not guarantee parametric stability or long-term reliability under Pb-free thermal cycles; use only with Sn/Pb solder unless explicitly re-qualified per J-STD-020.
What is the maximum reverse leakage current for JANTXV1N4986DUS/TR at 114 V?
The maximum reverse leakage current for JANTXV1N4986DUS/TR is 2 μA at 114 V and 25 °C, as specified in the Electrical Characteristics table. This low leakage supports high-impedance bias networks and minimizes power loss in battery-backed or energy-constrained systems.
How does the temperature coefficient of JANTXV1N4986DUS/TR affect long-term voltage stability?
The JANTXV1N4986DUS/TR has a temperature coefficient of +0.105 %/°C at IZT, meaning its Zener voltage increases by approximately 0.158 V per 1 °C rise above 25 °C. This predictable positive drift allows designers to compensate reference circuits using complementary components or software calibration in systems operating across wide thermal ranges.
JANTXV1N4986DUS/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):
- 150 V
- Tolerance:
- ±1%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 330 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 114 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
JANTXV1N4986DUS/TR FAQ
1.How can I place an order for JANTXV1N4986DUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4986DUS/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 JANTXV1N4986DUS/TR reliable?
The price and inventory of JANTXV1N4986DUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4986DUS/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4986DUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4986DUS/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4986DUS/TR?
JANTXV1N4986DUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4986DUS/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 JANTXV1N4986DUS/TR?
For technical support, including JANTXV1N4986DUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4986DUS/TR requirements.
6.How does Aetrix verify that JANTXV1N4986DUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4986DUS/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 JANTXV1N4986DUS/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4986DUS/TR?
All JANTXV1N4986DUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4986DUS/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 JANTXV1N4986DUS/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4986DUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4986DUS/TR Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
