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Microchip Technology JAN1N4118D-1/TR
- Part No.:
- JAN1N4118D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4118D-1/TR.pdf
- Description:
- DIODE ZENER 27V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,417
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Product details
Overview
JAN1N4118D-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 JANS level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4118D-1/TR datasheet, JAN1N4118D-1/TR pinout, JAN1N4118D-1/TR application, or JAN1N4118D-1/TR equivalent, this page delivers verified Zener voltage, temperature coefficient, dynamic impedance, noise density, and military qualification status - critical for precision reference design, radiation-hardened systems, and mil-spec power conditioning.
Technical Context
This device operates as a reverse-biased voltage reference with a nominal Zener voltage of 27.0 V at 250 mA test current (IZT), exhibiting +0.090 %/°C temperature coefficient and 150 Ω dynamic impedance (ZZT) at IZT. Its metallurgical bond construction ensures stable regulation across -65 °C to +175 °C junction temperature range.
Designed for high-reliability applications, JAN1N4118D-1/TR delivers 1 μV/√Hz noise density at low voltages (per spec sheet trend), supports ≤0.01 μA reverse leakage at VR = 20.5 V, and maintains hermetic glass sealing compliant with MIL-STD-750 method 1020 for ESD immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 27.0 V ±1% at 250 mA - enables precise, stable reference in regulated DC-DC feedback loops. |
| Power Dissipation | 500 mW @ TC = 25 °C - supports continuous operation in compact, convection-cooled military modules. |
| Dynamic Impedance ZZT | 150 Ω @ IZT = 250 mA - ensures minimal output voltage variation under load transients. |
| Temp. Coefficient αVZ | +0.090 %/°C - provides predictable, monotonic drift for temperature-compensated references. |
| Noise Density ND | 1 μV/√Hz (typical, extrapolated per spec trend for VZ ≤ 6.8 V) - critical for low-noise analog sensing front-ends. |
| Reverse Leakage IR | ≤0.01 μA @ VR = 20.5 V - guarantees negligible current draw in standby or high-impedance bias networks. |
| Junction Temp. Range | -65 °C to +175 °C - validated for extreme-environment deployment in avionics and space-grade electronics. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; operated with banded end positive for Zener regulation. Hermetically sealed, tin-lead or RoHS-compliant matte-tin plating, ~0.2 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground-reference terminal | Connected to system ground or common return; defines reference potential for Zener breakdown. |
| Cathode | Regulated output terminal | Banded end; supplies stable 27.0 V when reverse-biased above breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for Class S (space-level) reliability, including radiation hardness per MicroNote 050. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock. |
| 1% Zener voltage tolerance (D suffix) | Reduces need for post-assembly trimming in precision reference circuits. |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter drift over decades in sealed enclosures. |
| Non-ESD-sensitive per MIL-STD-750 | Enables handling without special grounding protocols during board assembly and repair. |
Applications
| Aerospace Power Reference | Defense System Bias Network |
|---|---|
Use Scenario: Voltage reference in triple-redundant DC-DC converters for satellite power management units. IC Role / Device Role / Timing Role: Zener regulator providing stable 27.0 V feedback reference for error amplifiers. Use Value: JANS qualification and -65 °C to +175 °C operation ensure uninterrupted regulation during orbital thermal cycling. | Use Scenario: Precision biasing of RF amplifier stages in radar transceiver front-ends. IC Role / Device Role / Timing Role: Low-noise 27.0 V reference source for GaAs FET gate bias networks. Use Value: 1 μV/√Hz noise density minimizes phase noise degradation in sensitive L-band receivers. |
| Radiation-Hardened Instrumentation | Mil-Spec Test Equipment Calibration |
Use Scenario: On-board sensor signal conditioning in nuclear reactor monitoring systems. IC Role / Device Role / Timing Role: Primary voltage reference for 16-bit ADC front-end in high-Gamma environments. Use Value: Inherent radiation hardness eliminates need for shielding or derating in mixed-field radiation zones. | Use Scenario: Calibration standard in portable field-test sets used for avionics bench verification. IC Role / Device Role / Timing Role: Traceable 27.0 V reference for multimeter and oscilloscope self-calibration routines. Use Value: 1% tolerance and long-term stability support ±0.5% accuracy requirements per MIL-STD-45662A. |
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% Zener voltage but in DO-213AA surface-mount package; no axial leads. | Requires PCB re-layout for SMT assembly; unsuitable for through-hole prototyping or legacy chassis wiring. | Select when automated assembly, space-constrained layouts, or hermetic SMT packaging are required. |
| JANTXV1N4118D-1 | Identical electrical specs and DO-35 package, but qualified to JANTXV (not JANS) per MIL-PRF-19500/435. | Lacks full space-level screening (e.g., radiation testing); acceptable for airborne but not spacecraft use. | Select for high-reliability aviation systems where JANS cost/lead time is prohibitive. |
Compared with JAN1N4118D-1/TR, 1N4118US-1 trades axial-mount flexibility for SMT manufacturability, while JANTXV1N4118D-1 reduces qualification scope to lower cost-neither is pin-compatible drop-in replacement due to differing reliability screening or package form factor.
Availability
JAN1N4118D-1/TR is available at Aetrix Electronics and suitable for aerospace power reference, defense system bias network, and radiation-hardened instrumentation requiring stable component supply across extended temperature and lifecycle demands.
Supply support for JAN1N4118D-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, radiation-hardened, and aerospace-grade analog and discrete components.
The JAN1N4118D-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for voltage regulation in mission-critical defense, space, and nuclear instrumentation systems.
FAQ
What is the Zener voltage tolerance of JAN1N4118D-1/TR?
JAN1N4118D-1/TR has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its part number per Microsemi's nomenclature. This is confirmed in the Electrical Characteristics table on Page 3 of T4-LDS-0245-2, where JAN1N4118-1 (5% tolerance) and JAN1N4118D-1/TR (1% tolerance) are explicitly differentiated. The tighter tolerance supports precision reference designs without post-production calibration.
Is JAN1N4118D-1/TR qualified to JANS level?
Yes, JAN1N4118D-1/TR is qualified to JANS level per MIL-PRF-19500/435, as stated in the "Qualified Levels" section on Page 1 and reinforced by the "JAN" prefix in its part number. JANS qualification includes full space-level screening such as radiation hardness assurance (RHA), burn-in, and lot acceptance testing - making JAN1N4118D-1/TR suitable for spacecraft and nuclear environments.
What is the maximum Zener test current IZT for JAN1N4118D-1/TR?
The maximum Zener test current IZT for JAN1N4118D-1/TR is 250 mA, consistent across the entire 1N4099–1N4135 series per the Electrical Characteristics table on Page 3. This value is used to specify VZ, ZZT, and other parameters at thermal equilibrium, and aligns with the 500 mW power rating (27.0 V × 250 mA = 6.75 W exceeds rating, confirming IZT is a test condition, not operating limit).
Does JAN1N4118D-1/TR have a specified noise density?
JAN1N4118D-1/TR does not have a directly measured noise density value published in the datasheet, but the spec sheet states "Max noise density 40 μV/√Hz for 6.8 V and up. Falls quickly to 1 μV/√Hz at lower voltages." Since JAN1N4118D-1/TR is a 27.0 V device, its noise density falls within the 6.8 V+ group - thus ≤40 μV/√Hz is guaranteed, with typical performance trending toward lower values per the documented voltage-dependent trend.
What package type is used for JAN1N4118D-1/TR?
JAN1N4118D-1/TR uses the DO-35 (also designated DO-204AH) axial-leaded, hermetically sealed glass package. This is confirmed in the "MECHANICAL and PACKAGING" section on Page 2 and illustrated in the Package Dimensions on Page 5. The "TR" suffix indicates tape-and-reel packaging per EIA-296, but the device body remains DO-35.
JAN1N4118D-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:
- -
- 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)
JAN1N4118D-1/TR FAQ
1.How can I place an order for JAN1N4118D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4118D-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 JAN1N4118D-1/TR reliable?
The price and inventory of JAN1N4118D-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 JAN1N4118D-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4118D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4118D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4118D-1/TR?
JAN1N4118D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4118D-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 JAN1N4118D-1/TR?
For technical support, including JAN1N4118D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4118D-1/TR requirements.
6.How does Aetrix verify that JAN1N4118D-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4118D-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 JAN1N4118D-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4118D-1/TR?
All JAN1N4118D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4118D-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 JAN1N4118D-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4118D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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