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Microchip Technology JANS1N4123D-1/TR
- Part No.:
- JANS1N4123D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4123D-1/TR.pdf
- Description:
- DIODE ZENER 39V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,915
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Product details
Overview
JANS1N4123D-1/TR from Microsemi is a 39.0 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 aerospace and defense applications. It delivers stable voltage regulation at IZT = 250 mA with ZZT = 200 Ω, αVZ = +0.095 %/°C, and IR ≤ 0.01 µA @ VR = 29.7 V.
For engineers reviewing the JANS1N4123D-1/TR datasheet, JANS1N4123D-1/TR pinout, JANS1N4123D-1/TR application, or JANS1N4123D-1/TR equivalent, key selection criteria include its JANS-level radiation hardness, hermetic DO-35 packaging, 1% Zener tolerance, low noise density (≤1 µV/√Hz), and thermal derating behavior from 500 mW at 25 °C to zero at 175 °C.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with cathode band marking polarity. Its metallurgical bond ensures mechanical stability under thermal cycling and shock, critical for space-grade deployments.
Regulation occurs at IZT = 250 mA with dynamic impedance ZZT = 200 Ω, and temperature coefficient αVZ = +0.095 %/°C confirms predictable positive drift over -65 °C to +175 °C junction range - enabling accurate compensation in analog reference circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 39.0 V ±1% at IZT = 250 mA - defines precise regulation point for reference design |
| Power Dissipation PM(AV) | 500 mW at TC = 25 °C, linearly derated to zero at 175 °C - sets thermal layout constraints |
| Zener Impedance ZZT | 200 Ω at IZT = 250 mA - determines output voltage stability under load variation |
| Reverse Leakage IR | ≤0.01 µA at VR = 29.7 V - ensures minimal error current in high-impedance bias networks |
| Temp Coefficient αVZ | +0.095 %/°C - enables predictable drift modeling across military temperature range |
| Noise Density ND | ≤1 µV/√Hz - supports low-noise analog references and precision instrumentation |
| Junction Temp Range | -65 °C to +175 °C - qualifies for extended-range operation in avionics and satellite systems |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with tin-lead plating; cathode indicated by color band. Leads are solderable per MIL-STD-750 method 2026; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or low-impedance return path; must sink full Zener current |
| Cathode (banded end) | Regulated output node | Provides stable 39.0 V reference; polarity must be observed to avoid forward conduction |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for Class S (space) applications with full lot traceability and screening |
| Metallurgical bond construction | Eliminates die attach voids and delamination risk under thermal shock and vibration |
| 1% Zener voltage tolerance | Reduces need for post-calibration trimming in precision reference designs |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per MicroNote 050 - no additional shielding required |
| Low capacitance | Typical <2 pF - preserves high-frequency stability in RF bias and fast-switching circuits |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 39.0 V reference for ADC front-end amplifiers in flight control computers. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precision analog reference rail. Use Value: 1% tolerance and +0.095 %/°C αVZ enable calibrated accuracy across -55 °C to +125 °C operating range without software correction. | Use Scenario: Biasing photodiode arrays and CMOS image sensors aboard LEO satellites. IC Role / Device Role / Timing Role: Low-noise, radiation-hardened voltage reference for analog signal conditioning. Use Value: ≤1 µV/√Hz noise density and inherent TID hardness eliminate need for redundant regulators or shielding mass. |
| Missile Guidance Signal Conditioning | Nuclear Instrumentation Calibration |
Use Scenario: Regulating excitation voltage for MEMS gyroscopes and accelerometers in tactical missile guidance units. IC Role / Device Role / Timing Role: High-reliability shunt regulator maintaining reference integrity during high-g launch transients. Use Value: Metallurgical bond and JANS qualification ensure mechanical survivability and parametric stability after 20,000 g shock exposure. | Use Scenario: Serving as primary voltage standard in portable radiation survey meters requiring NIST-traceable calibration. IC Role / Device Role / Timing Role: Precision Zener reference element in portable metrology-grade instruments. Use Value: Hermetic DO-35 package and 1% tolerance support annual recalibration intervals without drift-induced measurement uncertainty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4123D-1 | Same VZ, tolerance, and package; qualified to JANTXV (not JANS) per MIL-PRF-19500/435 | Lacks full JANS screening (e.g., burn-in, radiation testing); suitable for high-reliability ground systems but not spaceflight | Select when JANS-level radiation hardness and Class S screening are not required |
| 1N4123DUR-1 | Same electrical specs; DO-213AA surface-mount package instead of DO-35 | Enables automated assembly and reduced board area; lacks axial-lead mechanical robustness for high-vibration environments | Select for space-constrained PCBs where reflow compatibility and footprint reduction outweigh axial-mount ruggedness |
Compared with JANS1N4123D-1/TR, JANTXV1N4123D-1 offers identical regulation performance with lower screening rigor, while 1N4123DUR-1 provides identical Zener characteristics in a surface-mount form factor - both require reassessment of thermal path, mechanical mounting, and radiation assurance for mission-critical use.
Availability
JANS1N4123D-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, and missile guidance signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JANS1N4123D-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 components.
The JANS1N4123D-1/TR belongs to Microsemi's legacy 1N4099–1N4135 family of mil-qualified Zener diodes, designed specifically for precision voltage reference and regulation in defense, space, and nuclear instrumentation systems.
FAQ
What is the Zener voltage and tolerance of JANS1N4123D-1/TR?
JANS1N4123D-1/TR has a nominal Zener voltage of 39.0 V with ±1% tolerance at IZT = 250 mA. This tight tolerance is achieved through post-process binning and is guaranteed under MIL-PRF-19500/435 JANS screening, making JANS1N4123D-1/TR suitable for applications demanding calibrated reference accuracy without external trimming.
What does the "D" in JANS1N4123D-1/TR signify?
The "D" in JANS1N4123D-1/TR denotes 1% Zener voltage tolerance per the Microsemi part nomenclature. In the full designation, "JANS" indicates JANS-level qualification, "1N4123" is the JEDEC base type, "D" specifies ±1%, "-1" denotes metallurgical bond construction, and "TR" indicates tape-and-reel packaging per EIA-296.
Is JANS1N4123D-1/TR radiation hardened?
Yes, JANS1N4123D-1/TR is inherently radiation hard per Microsemi MicroNote 050 due to its metallurgically bonded glass construction and JANS-level screening. It exhibits proven tolerance to total ionizing dose (TID) relevant to low-Earth orbit and terrestrial nuclear environments - no additional hardening measures are required for JANS1N4123D-1/TR deployment.
What is the maximum reverse leakage current for JANS1N4123D-1/TR?
JANS1N4123D-1/TR has a maximum reverse leakage current (IR) of 0.01 µA at VR = 29.7 V, measured at 25 °C. This ultra-low leakage ensures minimal error contribution in high-impedance bias networks and precision reference dividers where JANS1N4123D-1/TR is commonly deployed.
Can JANS1N4123D-1/TR be used in surface-mount designs?
No - JANS1N4123D-1/TR uses the axial-leaded DO-35 (DO-204AH) package and is not compatible with surface-mount assembly. For SMT equivalents, consider 1N4123DUR-1 in DO-213AA, which shares identical electrical specifications but requires separate thermal and mechanical validation for JANS1N4123D-1/TR replacement.
JANS1N4123D-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):
- 39 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 29.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4123D-1/TR FAQ
1.How can I place an order for JANS1N4123D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4123D-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 JANS1N4123D-1/TR reliable?
The price and inventory of JANS1N4123D-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 JANS1N4123D-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4123D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4123D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4123D-1/TR?
JANS1N4123D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4123D-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 JANS1N4123D-1/TR?
For technical support, including JANS1N4123D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4123D-1/TR requirements.
6.How does Aetrix verify that JANS1N4123D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4123D-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 JANS1N4123D-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4123D-1/TR?
All JANS1N4123D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4123D-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 JANS1N4123D-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4123D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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