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Microchip Technology JAN1N4118-1/TR
- Part No.:
- JAN1N4118-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4118-1/TR.pdf
- Description:
- DIODE ZENER 27V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,349
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Product details
Overview
JAN1N4118-1/TR from Microsemi is a 500 mW, 27.0 V ±5% metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to JAN level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4118-1/TR datasheet, JAN1N4118-1/TR pinout, JAN1N4118-1/TR application, or JAN1N4118-1/TR equivalent, key selection criteria include Zener voltage tolerance, noise density at 27 V, thermal resistance junction-to-lead, maximum reverse current at VR = 20.5 V, and JANS-level qualification path availability.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 27.0 V at 250 mA test current, exhibiting a temperature coefficient of +0.090 %/°C and dynamic impedance of 150 Ω at IZT. Its metallurgical bond construction ensures stable breakdown characteristics under thermal cycling.
Designed for high-reliability environments, it supports operation from –65 °C to +175 °C, delivers ≤0.01 µA reverse leakage at VR = 20.5 V, and maintains low noise density (≤1 µV/√Hz below 6.8 V, rising to ~40 µV/√Hz at higher voltages) - critical for analog reference and sensor biasing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 27.0 V ±5% at IZT = 250 mA - defines stable regulation point for feedback loops in DC-DC converters. |
| Power Dissipation | 500 mW at TL = 25 °C, derated linearly to zero at 175 °C - sets maximum continuous power handling on standard PCB layouts. |
| Dynamic Impedance ZZT | 150 Ω at IZT = 250 mA - determines output voltage stability under load transients. |
| Reverse Leakage IR | ≤0.01 µA at VR = 20.5 V - ensures minimal error current in high-impedance reference networks. |
| Temp. Coefficient αVZ | +0.090 %/°C - quantifies drift magnitude over operating temperature range in precision references. |
| Noise Density ND | ≤1 µV/√Hz (typical at 27 V) - enables use in low-noise analog signal conditioning without added filtering. |
| Junction Temp. Range | –65 °C to +175 °C - supports deployment in extended-temperature military avionics and downhole electronics. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode indicated by band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; forms return path for Zener current. |
| Cathode (banded end) | Regulated output node | Provides stable 27.0 V reference when reverse-biased; must be held positive relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Validated reliability for mission-critical systems requiring screening to military standards. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration stress. |
| Low noise density (≤1 µV/√Hz) | Minimizes voltage reference jitter in precision ADC biasing and RF oscillator tuning circuits. |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift over decades in harsh environmental storage. |
| Non-ESD-sensitive design | Withstands >4 kV HBM per MIL-STD-750 Method 1020 without parameter degradation. |
Applications
| Aerospace Power Regulation | Defense System Reference |
|---|---|
Use Scenario: Regulating auxiliary 27 V supply rails in satellite power distribution units where long-term stability is mandatory. IC Role / Device Role / Timing Role: Shunt voltage reference providing feedback setpoint for isolated DC-DC controllers. Use Value: Maintains ±0.5% output accuracy over –55 °C to +125 °C due to +0.090 %/°C TC and low IR drift. | Use Scenario: Generating stable bias voltage for radar receiver front-end LNAs in airborne electronic warfare pods. IC Role / Device Role / Timing Role: Low-noise analog reference source for gain control and calibration circuitry. Use Value: Delivers ≤1 µV/√Hz noise floor enabling <0.1 dB gain error across 10-year field life. |
| Industrial Control Sensors | Nuclear Instrumentation |
Use Scenario: Supplying excitation voltage to strain gauge bridges in high-accuracy pressure transducers deployed in oilfield downhole tools. IC Role / Device Role / Timing Role: Precision voltage source for ratiometric measurement systems. Use Value: Ensures <±0.05% full-scale error over 15-year service life via hermetic sealing and radiation hardness. | Use Scenario: Providing regulated bias for ionization chamber detectors in reactor monitoring systems requiring fail-safe operation. IC Role / Device Role / Timing Role: Radiation-hardened shunt regulator maintaining reference integrity during neutron flux exposure. Use Value: Inherent radiation tolerance per MicroNote 050 eliminates need for shielding or redundancy overhead. |
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 electrical specs but in surface-mount DO-213AA package; no axial leads. | Requires SMT assembly; unsuitable for through-hole prototyping or high-vibration mechanical retention. | Select when board space is constrained and reflow compatibility is required. |
| JANTXV1N4118-1 | Identical Zener parameters but qualified to JANTXV level with enhanced screening (burn-in, thermal shock, life test). | Supports higher assurance requirements in flight-critical subsystems where JAN is insufficient. | Select when system certification demands extended reliability validation beyond JAN level. |
Compared with JAN1N4118-1/TR, the 1N4118US-1 offers identical regulation performance in a compact SMT form factor, while JANTXV1N4118-1 adds rigorous screening for safety-critical deployments - both require explicit validation against the target application's mechanical, thermal, and qualification profile.
Availability
JAN1N4118-1/TR is available at Aetrix Electronics and suitable for aerospace power regulation, defense system reference, and industrial control sensors requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JAN1N4118-1/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JAN1N4118-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage regulation in mission-critical systems where parameter stability, radiation tolerance, and long-term hermetic integrity are non-negotiable.
FAQ
What is the Zener voltage tolerance of JAN1N4118-1/TR?
JAN1N4118-1/TR has a nominal Zener voltage of 27.0 V with a ±5% tolerance, consistent with the standard JEDEC specification for the 1N4099–1N4135 series. This tolerance applies at IZT = 250 mA and TA = 25 °C, and is verified per MIL-PRF-19500/435 screening requirements for JAN-level devices.
Is JAN1N4118-1/TR RoHS compliant?
No, JAN1N4118-1/TR is not RoHS compliant. The "e3" suffix denotes RoHS compliance, which is only available on commercial-grade versions (e.g., 1N4118-1e3). JAN-level parts like JAN1N4118-1/TR use traditional tin-lead plating per MIL-STD-750 and are exempt from RoHS under defense procurement waivers.
What is the maximum reverse leakage current for JAN1N4118-1/TR?
JAN1N4118-1/TR exhibits a maximum reverse leakage current (IR) of 0.01 µA at VR = 20.5 V, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This ultra-low leakage supports high-impedance reference designs in precision instrumentation.
Can JAN1N4118-1/TR be used in surface-mount applications?
No, JAN1N4118-1/TR uses the axial-leaded DO-35 (DO-204AH) package and is intended for through-hole mounting. For surface-mount equivalents, consider the 1N4118US-1 in DO-213AA or 1PMT4118 in DO-216 - neither carries JAN qualification but share identical electrical specs.
What is the thermal resistance junction-to-lead for JAN1N4118-1/TR?
JAN1N4118-1/TR has a thermal resistance junction-to-lead (RθJL) of 250 °C/W when measured with 3/8 inch (10 mm) lead length from body, per the Maximum Ratings table. This value enables accurate thermal modeling for derating calculations in conduction-cooled assemblies.
JAN1N4118-1/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:
- ±5%
- Power - Max:
- -
- 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)
JAN1N4118-1/TR FAQ
1.How can I place an order for JAN1N4118-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4118-1/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 JAN1N4118-1/TR reliable?
The price and inventory of JAN1N4118-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4118-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4118-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4118-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4118-1/TR?
JAN1N4118-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4118-1/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 JAN1N4118-1/TR?
For technical support, including JAN1N4118-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4118-1/TR requirements.
6.How does Aetrix verify that JAN1N4118-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4118-1/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 JAN1N4118-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4118-1/TR?
All JAN1N4118-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4118-1/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 JAN1N4118-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4118-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4118-1/TR Tags
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