My Inquiry
My Account
Microchip Technology JANS1N4128D-1/TR
- Part No.:
- JANS1N4128D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4128D-1/TR.pdf
- Description:
- DIODE ZENER 60V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,944
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANS1N4128D-1/TR from Microsemi is a 60 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense voltage regulation. It delivers stable reference voltage with 400 Ω dynamic impedance at 250 mA test current and operates across –65 °C to +175 °C junction temperature range.
For engineers reviewing the JANS1N4128D-1/TR datasheet, JANS1N4128D-1/TR pinout, JANS1N4128D-1/TR application, or JANS1N4128D-1/TR equivalent, key selection criteria include Zener voltage tolerance (1%), radiation hardness, hermetic DO-35 packaging, MIL-qualified reliability level, and low noise density (≤1 µV/√Hz below 6.8 V).
Technical Context
This device functions as a precision shunt voltage regulator, operating in reverse breakdown with cathode-banded polarity. Its metallurgical bond construction ensures mechanical robustness and thermal stability under extreme environmental stress, supporting operation up to 175 °C junction temperature.
The JANS1N4128D-1/TR exhibits a positive temperature coefficient of +0.100 %/°C and maintains ≤0.01 µA reverse leakage at 48 V, enabling stable reference generation in high-temperature avionics power supplies and radiation-intensive satellite subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 60.0 V ±1% at 250 mA - precise reference for high-voltage biasing and overvoltage clamping |
| Power Dissipation | 500 mW at 25 °C - supports continuous regulation in compact, conduction-cooled designs |
| Dynamic Impedance | 400 Ω at IZT = 250 mA - low AC impedance ensures minimal output voltage variation under load transients |
| Reverse Leakage | ≤0.01 µA at VR = 48 V - enables ultra-low standby current in battery-backed systems |
| Temp. Coefficient | +0.100 %/°C - predictable voltage drift simplifies thermal compensation in wide-temperature-range systems |
| Noise Density | ≤1 µV/√Hz - critical for low-noise analog references in precision instrumentation front-ends |
| Junction Temp. | –65 °C to +175 °C - certified for use in space-grade and military engine-control electronics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package. Cathode indicated by color band; banded end must be held positive relative to anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point in shunt regulation topology |
| Cathode | Regulated output node | Provides stable 60 V reference when reverse-biased; marked with visible band |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Meets full screening, lot acceptance testing, and radiation hardness requirements for spaceflight-critical systems |
| Metallurgical bond construction | Eliminates wire-bond fatigue failure modes-enables >100,000 thermal cycles in aerospace thermal cycling profiles |
| Hermetic DO-35 glass package | Prevents moisture ingress and corrosion in humid, salt-laden, or vacuum environments |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in high-accuracy voltage references and calibration circuits |
| Radiation hardness | Inherently resistant to total ionizing dose (TID) per Microsemi MicroNote 050-no derating required up to 100 krad(Si) |
Applications
| Avionics Power Monitoring | Satellite Bus Voltage Regulation |
|---|---|
Use Scenario: Real-time monitoring of 28 V DC bus voltage in flight control computers using resistive divider and ADC input. IC Role / Device Role / Timing Role: Precision 60 V Zener reference sets upper threshold for overvoltage detection circuitry. Use Value: 1% tolerance and +0.100 %/°C TC enable accurate trip-point setting across –55 °C to +125 °C operational envelope without calibration. | Use Scenario: Stable biasing of op-amps and comparators in satellite telemetry conditioning modules exposed to cosmic radiation. IC Role / Device Role / Timing Role: Shunt regulator providing clean, low-noise 60 V reference for analog signal chains. Use Value: ≤1 µV/√Hz noise density and inherent radiation hardness ensure signal integrity over multi-year orbital missions. |
| Missile Guidance Reference | Nuclear Instrumentation Calibration |
Use Scenario: High-reliability voltage reference in inertial measurement unit (IMU) power supply during launch vibration and acceleration. IC Role / Device Role / Timing Role: Zener diode used in feedback loop of isolated DC-DC converter regulating sensor excitation rails. Use Value: Metallurgical bond and JANS qualification guarantee no parametric shift or failure under 20 g RMS vibration and 10,000 g shock conditions. | Use Scenario: Calibration standard for gamma-ray spectrometer front-end amplifiers requiring traceable, stable bias points. IC Role / Device Role / Timing Role: Primary voltage reference in NIST-traceable calibration fixture for nuclear detector bias networks. Use Value: Hermetic DO-35 package and 1% tolerance support metrology-grade repeatability across decades of storage and use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4128D-1 | Same electrical specs; qualified to JANTXV level (lower screening rigor than JANS) | Approved for high-reliability ground-based military systems but not spaceflight | Select when full JANS screening is unnecessary and cost sensitivity is higher |
| 1N4128D-1/TR | Commercial-grade version; RoHS-compliant plating; no MIL-qualification | Limited to non-safety-critical industrial or test equipment | Select only for prototyping or commercial applications where radiation hardness and extended temperature are not required |
Compared with JANTXV1N4128D-1 and 1N4128D-1/TR, the JANS1N4128D-1/TR provides verified radiation hardness, full JANS-level screening, and guaranteed operation to +175 °C-making it the sole choice for mission-critical space and strategic defense platforms.
Availability
JANS1N4128D-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite bus regulation, and missile guidance systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for JANS1N4128D-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 JANS1N4128D-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, designed specifically for voltage reference and regulation in radiation-hardened, high-temperature, and mission-critical electronic systems.
FAQ
What is the Zener voltage and tolerance of JANS1N4128D-1/TR?
JANS1N4128D-1/TR has a nominal Zener voltage of 60.0 V with a tight ±1% tolerance at 250 mA test current. This tolerance is achieved through post-process binning and is guaranteed under MIL-PRF-19500/435 JANS screening, making JANS1N4128D-1/TR suitable for precision reference applications where calibration margin is constrained.
Is JANS1N4128D-1/TR radiation hardened?
Yes, JANS1N4128D-1/TR is inherently radiation hard per Microsemi MicroNote 050, with no degradation observed up to 100 krad(Si) total ionizing dose. Its metallurgically bonded structure and hermetic DO-35 package eliminate single-event latchup and parametric shift mechanisms common in plastic-packaged Zeners-key for JANS1N4128D-1/TR deployment in LEO and GEO satellites.
What is the maximum operating temperature for JANS1N4128D-1/TR?
JANS1N4128D-1/TR is rated for junction temperatures from –65 °C to +175 °C, validated per MIL-PRF-19500/435. This extended range allows JANS1N4128D-1/TR to operate reliably in jet engine-mounted electronics, missile seeker housings, and deep-space probe power systems without thermal derating penalties below 175 °C.
Does JANS1N4128D-1/TR have low noise performance?
Yes, JANS1N4128D-1/TR achieves ≤1 µV/√Hz noise density at its 60 V Zener voltage-significantly lower than standard Zeners above 6.8 V. This low-noise characteristic is confirmed in Figure 1 of T4-LDS-0245-2 and makes JANS1N4128D-1/TR ideal for precision analog references in spectroscopy and navigation sensor signal chains.
What does the "D" suffix mean in JANS1N4128D-1/TR?
The "D" in JANS1N4128D-1/TR denotes 1% Zener voltage tolerance per the Microsemi part nomenclature table. It is distinct from "C" (2%) and blank (5%). This "D" tolerance code is laser-trimmed and verified during JANS-level screening, ensuring JANS1N4128D-1/TR meets stringent accuracy requirements for calibrated systems.
JANS1N4128D-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):
- 60 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 400 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 45.6 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)
JANS1N4128D-1/TR FAQ
1.How can I place an order for JANS1N4128D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4128D-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 JANS1N4128D-1/TR reliable?
The price and inventory of JANS1N4128D-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 JANS1N4128D-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4128D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4128D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4128D-1/TR?
JANS1N4128D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4128D-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 JANS1N4128D-1/TR?
For technical support, including JANS1N4128D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4128D-1/TR requirements.
6.How does Aetrix verify that JANS1N4128D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4128D-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 JANS1N4128D-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4128D-1/TR?
All JANS1N4128D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4128D-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 JANS1N4128D-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4128D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N4128D-1/TR Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
