Microchip Technology JAN1N4105D-1
- Part No.:
- JAN1N4105D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4105D-1.pdf
- Description:
- DIODE ZENER 11V DO204AH
- Quantity:
- Payment:

- Shipping:

Inventory:5,864
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Product details
Overview
JAN1N4105D-1 from Microsemi is a 1% tolerance, 11.0 V, 500 mW metallurgically bonded glass Zener diode in DO-35 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 JAN1N4105D-1 datasheet, JAN1N4105D-1 pinout, JAN1N4105D-1 application, or JAN1N4105D-1 equivalent, key selection criteria include Zener voltage tolerance (±1%), temperature coefficient (+0.080 %/°C), noise density (1 µV/√Hz), dynamic impedance (200 Ω), and JANS-level radiation hardness.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 11.0 V at 250 mA test current, exhibiting low dynamic impedance (200 Ω) and minimal capacitance (typ. <2 pF). Its metallurgical bond construction ensures stable regulation across wide current (0.25–8.5 mA) and temperature (−65 to +175 °C) ranges.
The JAN1N4105D-1 delivers low-noise performance (1 µV/√Hz at IZT) and exhibits a positive temperature coefficient (+0.080 %/°C), enabling predictable drift compensation in reference circuits. It is hermetically sealed in a DO-35 glass package with tin-lead plating and cathode band marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 11.0 V ±1% at 250 mA - enables precise 11 V reference generation with tight initial accuracy |
| Power Dissipation | 500 mW at 25 °C - supports stable regulation in compact axial-leaded designs without forced cooling |
| Dynamic Impedance ZZT | 200 Ω max - ensures minimal output voltage variation under load transients |
| Noise Density | 1 µV/√Hz - critical for low-noise analog references and precision instrumentation |
| Temp Coefficient αVZ | +0.080 %/°C - allows predictable thermal drift modeling in high-stability circuits |
| Reverse Leakage IR | 0.05 µA @ 8.8 V - guarantees negligible current draw in standby or high-impedance bias networks |
| Max Regulator Current IZM | 8.5 mA - defines safe continuous operating current limit before thermal derating begins |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by color band; leads are tin-lead plated and solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes Zener breakdown polarity when cathode is biased positive |
| Cathode | Regulated output node | Banded end; held at stable 11.0 V relative to anode during reverse conduction |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| JANS qualification per MIL-PRF-19500/435 | Validated for space-grade applications including total ionizing dose (TID) and single-event effects (SEE) |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in precision reference designs |
| Hermetic glass sealing | Prevents moisture ingress and parameter drift over 20+ year mission lifetimes |
| Radiation hardness | Inherently hardened per Microsemi MicroNote 050 - no additional shielding or screening required |
Applications
| Avionics Power Reference | Satellite Voltage Monitor |
|---|---|
Use Scenario: Providing stable 11 V reference for ADCs and DACs in flight control computers. IC Role / Device Role / Timing Role: Shunt voltage reference regulating supply rail against load and temperature variation. Use Value: ±1% initial tolerance and +0.080 %/°C TC enable <±0.5% total error over −55 to +125 °C operational range. | Use Scenario: Biasing radiation-hardened comparators in satellite bus voltage supervision circuits. IC Role / Device Role / Timing Role: Precision threshold detector element in triple-redundant power monitoring systems. Use Value: JANS qualification and inherent radiation hardness eliminate separate rad-hard qualification testing. |
| Nuclear Instrumentation | Military Test Equipment |
Use Scenario: Calibrating high-voltage neutron detector front-end amplifiers in reactor control systems. IC Role / Device Role / Timing Role: Low-noise 11 V reference source for gain-setting networks. Use Value: 1 µV/√Hz noise density prevents signal-to-noise degradation in sub-picoamp measurement paths. | Use Scenario: Stabilizing programmable power supply outputs in field-deployable maintenance test sets. IC Role / Device Role / Timing Role: Primary shunt regulator in lab-grade 0–30 V variable output stages. Use Value: 500 mW rating and 250 °C/W junction-to-lead thermal resistance support continuous operation at full load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4105US-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads | Used where board space is constrained and reflow assembly is required | Select when transitioning from through-hole to SMT without changing regulation performance |
| JANTXV1N4105D-1 | Identical Zener parameters but qualified to JANTXV (not JANS); lower screening rigor and radiation assurance | Suitable for non-space military platforms where full JANS is not mandated | Choose for cost-sensitive defense programs requiring MIL-qualified reliability but not space radiation hardness |
Compared with JAN1N4105D-1, the 1N4105US-1 offers identical regulation performance in a smaller footprint but requires PCB redesign, while JANTXV1N4105D-1 reduces procurement cost and lead time at the expense of radiation tolerance and long-term parametric stability.
Availability
JAN1N4105D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite voltage monitor, and nuclear instrumentation requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for JAN1N4105D-1 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 components.
The JAN1N4105D-1 belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, designed specifically for mission-critical voltage regulation in defense, space, and nuclear environments where parametric stability and long-term reliability are non-negotiable.
FAQ
What is the Zener voltage tolerance of JAN1N4105D-1?
JAN1N4105D-1 has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its nomenclature. This tight tolerance is achieved through post-process binning and is specified at 25 °C with 250 mA test current. The 11.0 V nominal value remains stable across its rated current range and temperature extremes due to metallurgical bond construction.
Is JAN1N4105D-1 suitable for space applications?
Yes, JAN1N4105D-1 is qualified to JANS level per MIL-PRF-19500/435 and is inherently radiation-hardened per Microsemi MicroNote 050. It meets total ionizing dose (TID) requirements for low-earth orbit missions and is used in satellite voltage monitors and avionics reference circuits where long-term parametric stability under radiation exposure is mandatory.
What is the maximum operating temperature for JAN1N4105D-1?
JAN1N4105D-1 has a junction and storage temperature range of −65 to +175 °C. Its thermal resistance junction-to-lead is 250 °C/W at 3/8″ lead length, enabling reliable operation in high-temperature environments such as engine-mounted electronics or nuclear containment areas when properly heatsinked.
Does JAN1N4105D-1 require external heat sinking?
No, JAN1N4105D-1 does not require external heat sinking for operation at its full 500 mW rating when leads are trimmed to 3/8″ (10 mm) from the package body and mounted on standard FR4 with 4 mm² copper pads. Derating begins linearly at 50 °C ambient, reaching zero dissipation at 175 °C - consistent with its specified thermal resistance profile.
How is polarity marked on JAN1N4105D-1?
JAN1N4105D-1 uses a cathode band marking on the glass DO-35 body to indicate polarity. The banded end is the cathode and must be biased positive relative to the anode to achieve Zener breakdown regulation. This marking complies with JEDEC standards and is verified per MIL-STD-750 method 2026 for solderability and visual inspection.
JAN1N4105D-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±1%
- Power - Max:
- -
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 8.5 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)
JAN1N4105D-1 FAQ
1.How can I place an order for JAN1N4105D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4105D-1 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 JAN1N4105D-1 reliable?
The price and inventory of JAN1N4105D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4105D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4105D-1?
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Once your JAN1N4105D-1 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 JAN1N4105D-1?
For technical support, including JAN1N4105D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4105D-1 requirements.
6.How does Aetrix verify that JAN1N4105D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4105D-1 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 JAN1N4105D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4105D-1?
All JAN1N4105D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4105D-1, 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 JAN1N4105D-1 part is unused and in its original packaging.
Return procedure for JAN1N4105D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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