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Microchip Technology JANTXV1N4986CUS/TR
- Part No.:
- JANTXV1N4986CUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, E
- Datasheet:
-
JANTXV1N4986CUS/TR.pdf
- Description:
- DIODE ZENER 150V 5W E-MELF
- Quantity:
- Payment:
- Shipping:
Inventory:8,291
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Product details
Overview
JANTXV1N4986CUS/TR from Microsemi is a military-grade, hermetically sealed surface-mount Zener diode rated for 5 W power dissipation, with a nominal Zener voltage of 150 V at 8 mA test current, ±2% tolerance (C suffix), and operating junction temperature range of −65 °C to +175 °C. It serves as a precision voltage reference and overvoltage clamp in high-reliability power regulation circuits for aerospace and defense systems.
For engineers reviewing the JANTXV1N4986CUS/TR datasheet, JANTXV1N4986CUS/TR pinout, JANTXV1N4986CUS/TR application, or JANTXV1N4986CUS/TR equivalent, this part delivers verified 150 V regulation with <1.0 V voltage regulation (ΔVZ) across 10–50% of IZM, ultra-low leakage (<2 µA at 114 V), and radiation-hardened voidless-glass construction compliant with MIL-PRF-19500/356.
Technical Context
This device operates in reverse breakdown mode with tightly controlled dynamic impedance (ZZ = 190 Ω at IZT = 8 mA) and low thermal resistance (10 °C/W junction-to-end-cap). Its Category III internal metallurgical bond ensures mechanical robustness under shock/vibration and long-term stability in extreme thermal cycling.
The JANTXV1N4986CUS/TR exhibits a positive temperature coefficient of +0.105 %/°C and maintains regulation down to IZK = 5 mA (ZZK = 1250 Ω), enabling stable reference operation across wide load and temperature variations without external bias compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 150 V ±2% at IZT = 8 mA - precise reference for 120–160 V rail monitoring and clamping |
| Power Dissipation | 5 W @ TEC = 125 °C - supports continuous regulation in compact, conduction-cooled layouts |
| Dynamic Impedance ZZ | 190 Ω at IZT - limits output voltage deviation under dynamic load transients |
| Reverse Leakage IR | <2 µA at VR = 114 V - ensures minimal quiescent current in standby protection circuits |
| Max Continuous Current IZM | 31.6 mA - defines safe DC operating envelope without thermal runaway |
| Surge Current IZSM | 0.75 A (8.3 ms square wave) - withstands lightning-induced transients per MIL-STD-461 |
| Temp Coefficient αVZ | +0.105 %/°C - enables predictable drift compensation in wide-temperature avionics |
Pinout & Package
Hermetically sealed voidless glass package designated "E" (also known as "D-5B"), with copper end caps finished in Sn/Pb, cathode indicated by band, and polarity-aligned surface-mount footprint optimized for reflow soldering on rigid PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to system ground or lowest potential node during regulation |
| Cathode | Zener breakdown terminal / high-side connection | Banded end; connects to regulated voltage rail or transient input source |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Eliminates moisture ingress and internal delamination under 100% RH, 125 °C stress |
| Category III metallurgical bond | Withstands >1000 g mechanical shock and >10,000 thermal cycles (−65 °C to +175 °C) |
| MIL-PRF-19500/356 qualification | Qualified to JANTXV level with lot traceability, burn-in, and radiation hardness per MicroNote 050 |
| Nonsensitive to ESD | Passes MIL-STD-750 Method 1020 (≥4 kV HBM) without parameter shift or failure |
| Tape-and-reel packaging | EIA-481-B compliant carrier for automated SMT placement with zero component damage |
Applications
| Aerospace Power Bus Protection | Defense Radar Bias Supply |
|---|---|
Use Scenario: Clamping transient overvoltages on 120 VDC aircraft distribution buses during load dump or generator fault events. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator and crowbar element in parallel with bus capacitor. Use Value: Withstands 0.75 A surge for 8.3 ms and maintains 150 V regulation within ±1.0 V across 3–15 mA operating range. |
Use Scenario: Providing stable 150 V reference for high-voltage RF amplifier bias networks in airborne radar transmitters. IC Role / Device Role / Timing Role: Precision voltage reference establishing fixed gate bias point for GaN HEMT drivers. Use Value: ±2% tolerance and +0.105 %/°C TC enable <±3 V drift over −55 °C to +125 °C operational envelope. |
| Satellite Payload Voltage Reference | Nuclear Instrumentation Signal Conditioning |
Use Scenario: Generating calibrated reference voltage for ADC front-ends measuring gamma-ray detector outputs in LEO satellites. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference replacing less robust silicon alternatives in analog signal chains. Use Value: Inherent TID hardness (>100 krad(Si)) and no parametric shift after proton irradiation per MicroNote 050. |
Use Scenario: Regulating high-voltage supply (150 V) for photomultiplier tube (PMT) anode chains in nuclear spectroscopy analyzers. IC Role / Device Role / Timing Role: Stable shunt regulator maintaining constant inter-stage voltage despite load current variation. Use Value: 190 Ω dynamic impedance ensures <0.3 V ripple at 10 mA load step, critical for energy resolution fidelity. |
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 | Same 150 V rating but ±5% tolerance (no C suffix); higher ΔVZ (1.5 V vs. 1.0 V) | Acceptable where tighter regulation not required; lower cost for non-critical rails | Select JANTXV1N4986US only if ±5% tolerance and relaxed voltage regulation meet system margin requirements. |
| CDLL150 | Commercial-grade 150 V Zener; plastic package; max 1 W power; not radiation-hardened or MIL-qualified | Limited to benign environments; unsuitable for space, avionics, or safety-critical systems | CDLL150 may be used for lab prototyping or terrestrial industrial controls where reliability and radiation immunity are not mandated. |
Compared with JANTXV1N4986US and CDLL150, the JANTXV1N4986CUS/TR uniquely combines ±2% tolerance, 5 W power handling, hermetic voidless-glass construction, and MIL-PRF-19500/356 JANTXV qualification-making it the sole option for mission-critical 150 V regulation where parameter stability, surge resilience, and radiation hardness are mandatory.
Availability
JANTXV1N4986CUS/TR is available at Aetrix Electronics and suitable for aerospace power bus protection, defense radar bias supply, and satellite payload voltage reference requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JANTXV1N4986CUS/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets, with emphasis on radiation-hardened, high-temperature, and MIL-spec components.
The JANTXV1N4986CUS/TR belongs to Microsemi's legacy 1N49xxUS series of hermetically sealed Zener regulators, engineered specifically for voltage reference and transient suppression in mission-critical systems where failure is not an option.
FAQ
What is the Zener voltage tolerance of JANTXV1N4986CUS/TR?
The JANTXV1N4986CUS/TR has a nominal Zener voltage of 150 V with a ±2% tolerance, indicated by the "C" suffix in the part number. This tight tolerance is verified per MIL-PRF-19500/356 screening and ensures consistent regulation performance across production lots and temperature extremes from −65 °C to +175 °C.
Does JANTXV1N4986CUS/TR require heatsinking in standard PCB layouts?
No additional heatsink is required for JANTXV1N4986CUS/TR when operated at ≤5 W within its specified derating curve. Its 10 °C/W junction-to-end-cap thermal resistance allows direct mounting on standard FR-4 PCBs with adequate copper pour; full 5 W dissipation is supported at TEC = 125 °C per the datasheet's linear derating specification.
Is JANTXV1N4986CUS/TR compatible with lead-free reflow processes?
JANTXV1N4986CUS/TR features Sn/Pb-finished copper end caps and is qualified for Sn/Pb soldering profiles. While not lead-free process qualified, its hermetic glass body tolerates peak reflow temperatures up to 235 °C for ≤60 seconds-enabling compatibility with selective lead-free assembly when using appropriate thermal profiling and underfill adhesives.
What is the maximum reverse leakage current for JANTXV1N4986CUS/TR at 114 V?
The maximum reverse leakage current for JANTXV1N4986CUS/TR is 2 µA at VR = 114 V and TA = 25 °C, as specified in the Electrical Characteristics table. This low leakage ensures minimal power loss in high-impedance reference circuits and preserves accuracy in battery-backed or low-quiescent systems.
How does the temperature coefficient of JANTXV1N4986CUS/TR affect long-term voltage stability?
JANTXV1N4986CUS/TR has a temperature coefficient of +0.105 %/°C, meaning its Zener voltage increases by ~0.158 V per 10 °C rise above 25 °C. This predictable, linear drift enables accurate system-level compensation in avionics and satellite applications where ambient temperature varies widely across mission phases.
JANTXV1N4986CUS/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:
- ±2%
- 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
JANTXV1N4986CUS/TR FAQ
1.How can I place an order for JANTXV1N4986CUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4986CUS/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 JANTXV1N4986CUS/TR reliable?
The price and inventory of JANTXV1N4986CUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4986CUS/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4986CUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4986CUS/TR transactions.
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JANTXV1N4986CUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4986CUS/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 JANTXV1N4986CUS/TR?
For technical support, including JANTXV1N4986CUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4986CUS/TR requirements.
6.How does Aetrix verify that JANTXV1N4986CUS/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4986CUS/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 JANTXV1N4986CUS/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4986CUS/TR?
All JANTXV1N4986CUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4986CUS/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 JANTXV1N4986CUS/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4986CUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N4986CUS/TR Tags
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