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Microchip Technology JANTXV1N4118D-1/TR
- Part No.:
- JANTXV1N4118D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTXV1N4118D-1/TR.pdf
- Description:
- DIODE ZENER 27V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,966
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Product details
Overview
JANTXV1N4118D-1/TR from Microsemi is a 27.0 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to JANTXV level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTXV1N4118D-1/TR datasheet, JANTXV1N4118D-1/TR pinout, JANTXV1N4118D-1/TR application, or JANTXV1N4118D-1/TR equivalent, key selection criteria include its 1% Zener voltage tolerance, 150 Ω dynamic impedance at 250 mA test current, -65 °C to +175 °C operating temperature range, and hermetically sealed glass package with cathode band polarity marking.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with Zener voltage specified at 27.0 V ±1% under 250 mA test current (IZT). Its metallurgical bond construction ensures stable regulation across wide current (1 µA to 14.0 mA max IZM) and temperature ranges.
It exhibits low noise density (1 µV/√Hz typical), minimal capacitance (~17 pF), and a positive temperature coefficient of +0.090 %/°C - enabling predictable drift compensation in reference circuits requiring long-term stability under thermal stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27.0 V ±1% at 250 mA - enables precise 27 V rail regulation with tight initial accuracy for analog references. |
| Power Dissipation | 500 mW at 25 °C - supports stable operation in compact through-hole designs without forced cooling. |
| Dynamic Impedance (ZZT) | 150 Ω at 250 mA - ensures low output impedance for effective ripple suppression in regulated supplies. |
| Reverse Leakage (IR) | ≤0.01 µA at 20.5 V - guarantees minimal standby current in low-power bias networks. |
| Temp Coefficient (αVZ) | +0.090 %/°C - allows predictable voltage drift modeling over -65 °C to +175 °C operational range. |
| Noise Density (ND) | 1 µV/√Hz - supports low-noise analog references where spectral purity is critical (e.g., ADC references). |
| Package | DO-35 (DO-204AH) glass axial - provides hermetic sealing and radiation hardness per MicroNote 050. |
Pinout & Package
DO-35 (DO-204AH) glass axial package with cathode indicated by a single black band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 method 2026. Weight ≈0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; forms return path for Zener current during regulation. |
| Cathode (banded end) | Regulated output node | Supplies stable 27.0 V when reverse-biased; must be held positive relative to anode for Zener operation. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTXV qualification | Validated reliability for flight-critical systems including burn-in, life test, and radiation hardness per MicroNote 050. |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in precision voltage references and sensor excitation circuits. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling, ensuring long-term parameter stability. |
| Low 1 µV/√Hz noise density | Enables use in ultra-low-noise analog front-ends where broadband noise would degrade SNR. |
| Hermetic glass DO-35 package | Prevents moisture ingress and parametric shift in humid or high-vacuum environments (e.g., satellite power modules). |
Applications
| Avionics Power Reference | Satellite DC-DC Converter Feedback |
|---|---|
Use Scenario: Providing stable 27 V reference for analog-to-digital converters in inertial measurement units (IMUs). IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise scaling for sensor signal conditioning. Use Value: 1% tolerance and +0.090 %/°C TC enable <±0.5% total error over -55 °C to +125 °C without calibration. | Use Scenario: Setting output voltage in radiation-hardened isolated DC-DC converters on LEO satellites. IC Role / Device Role / Timing Role: Primary feedback element in secondary-side regulation loop. Use Value: Hermetic DO-35 package and inherent radiation hardness ensure no parametric shift after 100 krad(Si) TID exposure. |
| Ground-Based Radar Bias Supply | Tactical Radio RF Amplifier Bias |
Use Scenario: Generating stable bias voltage for GaAs FET preamplifiers in phased-array radar receivers. IC Role / Device Role / Timing Role: Low-noise Zener reference for active bias network stabilization. Use Value: 1 µV/√Hz noise density prevents AM sideband degradation in 2–18 GHz receiver chains. | Use Scenario: Regulating gate voltage for Class AB RF power amplifiers in manpack radios operating at -40 °C to +85 °C. IC Role / Device Role / Timing Role: Temperature-compensated shunt regulator maintaining amplifier linearity. Use Value: Linear derating from 500 mW at 25 °C to zero at 175 °C supports reliable operation in thermally constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4118US-1 | Same 27.0 V ±1%, but in surface-mount DO-213AA package; no axial leads. | Requires SMT reflow process; unsuitable for through-hole prototyping or high-vibration mechanical retention. | Select when board space is constrained and automated assembly is used. |
| JANS1N4118D-1 | Identical electrical specs and DO-35 package, but qualified to JANS (highest MIL-PRF-19500 level) with extended screening. | Required for manned spacecraft and nuclear command systems where full JANS lot traceability and radiation testing are mandated. | Select only when JANS-level documentation and test reports are contractually required. |
Compared with JANTXV1N4118D-1/TR, the 1N4118US-1 offers footprint reduction at the cost of mechanical robustness, while JANS1N4118D-1 adds screening overhead without electrical benefit - making JANTXV1N4118D-1/TR the optimal balance of reliability, performance, and procurement efficiency for most defense-grade programs.
Availability
JANTXV1N4118D-1/TR is available at Aetrix Electronics and suitable for avionics power references, satellite DC-DC converter feedback, and ground-based radar bias supplies requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTXV1N4118D-1/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 Corporation (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 1N4099–1N4135 series was designed specifically to meet MIL-PRF-19500/435 requirements for ruggedized, hermetically sealed Zener regulators in mission-critical power and reference applications.
FAQ
What is the Zener voltage tolerance and test current for JANTXV1N4118D-1/TR?
JANTXV1N4118D-1/TR has a nominal Zener voltage of 27.0 V with ±1% tolerance, measured at a Zener test current (IZT) of 250 mA. This tight tolerance is achieved via post-process binning and verified during MIL-PRF-19500/435 qualification testing at Microsemi's certified facility.
Is JANTXV1N4118D-1/TR suitable for high-radiation environments like space applications?
Yes, JANTXV1N4118D-1/TR is inherently radiation hard per Microsemi MicroNote 050 and qualified to JANTXV level under MIL-PRF-19500/435, which includes radiation susceptibility testing. It is widely deployed in LEO satellite power subsystems where total ionizing dose up to 100 krad(Si) is expected.
What is the maximum Zener current (IZM) and how is it derived for JANTXV1N4118D-1/TR?
The maximum Zener current IZM for JANTXV1N4118D-1/TR is 14.0 mA, calculated from its 500 mW power rating and 27.0 V Zener voltage (IZM = PM(AV)/VZ ≈ 14.0 mA). Derating begins linearly at 50 °C ambient, reaching zero at 175 °C per Figure 2 in the official datasheet.
Does JANTXV1N4118D-1/TR have a specified noise density, and what is its value?
Yes, JANTXV1N4118D-1/TR has a specified noise density of 1 µV/√Hz, measured at 1 kHz–3 kHz bandwidth with 250 mA Zener current at 25 °C. This low value is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 and supports use in low-noise analog references.
How is polarity marked on the JANTXV1N4118D-1/TR DO-35 package?
JANTXV1N4118D-1/TR uses a single black cathode band on the glass body to indicate polarity. The banded end is the cathode and must be held positive relative to the unmarked (anode) lead for proper Zener regulation - this marking complies with JEDEC DO-35 standards and is visible under standard visual inspection.
JANTXV1N4118D-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 27 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 20.5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANTXV1N4118D-1/TR FAQ
1.How can I place an order for JANTXV1N4118D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N4118D-1/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 JANTXV1N4118D-1/TR reliable?
The price and inventory of JANTXV1N4118D-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N4118D-1/TR is usually 5 days.
3.What payment methods are accepted for JANTXV1N4118D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N4118D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N4118D-1/TR?
JANTXV1N4118D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N4118D-1/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 JANTXV1N4118D-1/TR?
For technical support, including JANTXV1N4118D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N4118D-1/TR requirements.
6.How does Aetrix verify that JANTXV1N4118D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANTXV1N4118D-1/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 JANTXV1N4118D-1/TR meets industry standards.
7.What is the process for return or replacement of JANTXV1N4118D-1/TR?
All JANTXV1N4118D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N4118D-1/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 JANTXV1N4118D-1/TR part is unused and in its original packaging.
Return procedure for JANTXV1N4118D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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