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Microchip Technology JAN1N4128-1
- Part No.:
- JAN1N4128-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4128-1.pdf
- Description:
- DIODE ZENER 60V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,009
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Product details
Overview
JAN1N4128-1 from Microsemi is a 500 mW, 60 V, ±5% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to MIL-PRF-19500/435 JAN level for high-reliability applications. It delivers stable voltage regulation at 250 mA test current with 400 Ω dynamic impedance, low noise density (1 µV/√Hz), and operates across –65 °C to +175 °C junction temperature range.
For engineers reviewing the JAN1N4128-1 datasheet, JAN1N4128-1 pinout, JAN1N4128-1 application, or JAN1N4128-1 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (250 °C/W junction-to-lead), radiation hardness, MIL-qualified reliability level, and low-noise performance in precision reference and aerospace power conditioning circuits.
Technical Context
The JAN1N4128-1 operates as a reverse-biased voltage reference with a nominal Zener voltage of 60.0 V at 250 mA test current (IZT), exhibiting a positive temperature coefficient of +0.100 %/°C. Its metallurgical bond construction ensures mechanical stability under thermal cycling and shock.
It maintains regulation over wide current ranges (up to 45.6 mA maximum Zener current IZM) and features minimal capacitance (<1 pF typical per Figure 3), enabling use in high-frequency biasing and low-jitter reference paths where parasitic reactance must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 60.0 V at 250 mA - defines precise regulation point for power supply feedback or reference generation |
| Power Dissipation | 500 mW at 25 °C - supports continuous operation in compact, conduction-cooled designs |
| Zener Impedance (ZZT) | 400 Ω at 250 mA - determines output voltage variation under load transients |
| Noise Density (ND) | 1 µV/√Hz - enables ultra-low-noise analog references in instrumentation and ADC biasing |
| Temp Coefficient (αVZ) | +0.100 %/°C - quantifies drift magnitude over operating temperature range |
| Reverse Leakage (IR) | 10 nA at 48 V - ensures minimal error current in high-impedance reference nodes |
| Junction Temp Range | –65 °C to +175 °C - validated for extended-range military and downhole electronics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package; cathode indicated by band; tin-lead plated leads solderable per MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit common or ground when used in standard shunt regulator configuration |
| Cathode | Zener regulation terminal / input node | Connected to unregulated input; banded end must be held positive relative to anode for breakdown operation |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Validated reliability for defense systems requiring traceable lot control and screening per Level 1 requirements |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal stress, ensuring long-term parameter stability |
| Low noise density (1 µV/√Hz) | Reduces RMS noise contribution in precision voltage references below 100 nV/Hz² bandwidth |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for space-qualified designs |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift over 20+ year field life in harsh environments |
Applications
| Aerospace Power Conditioning | Precision Instrumentation Reference |
|---|---|
Use Scenario: Regulating auxiliary rail in satellite power management units exposed to thermal cycling and radiation. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 60 V bias for DC-DC converter feedback networks. Use Value: JAN-level qualification and radiation hardness ensure uninterrupted operation without recalibration over mission lifetime. | Use Scenario: Generating ultra-stable reference voltage for 24-bit precision DACs in metrology equipment. IC Role / Device Role / Timing Role: Low-noise Zener element establishing primary voltage基准 in ratiometric measurement chains. Use Value: 1 µV/√Hz noise density minimizes integrated noise floor, preserving ENOB in high-resolution data acquisition. |
| Downhole Oilfield Electronics | Military Avionics Biasing |
Use Scenario: Providing regulated bias for pressure sensor front-end amplifiers in borehole tools operating at 175 °C. IC Role / Device Role / Timing Role: High-temperature-stable Zener clamp protecting amplifier inputs from transient overvoltage. Use Value: Guaranteed operation up to +175 °C junction temperature eliminates derating concerns in sealed, conduction-cooled housings. | Use Scenario: Supplying reference voltage for analog-to-digital converters in radar warning receivers. IC Role / Device Role / Timing Role: MIL-qualified shunt regulator maintaining accuracy during EMI-intensive RF transmission events. Use Value: Non-sensitive ESD behavior (per MIL-STD-750 Method 1020) prevents latch-up or parametric shift during electromagnetic interference exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4128US | Same 60 V Zener voltage and DO-35 package but commercial-grade (non-MIL); RoHS-compliant matte-tin plating | Lacks JAN qualification, radiation hardness, and extended temperature screening - limited to benign industrial environments | Select when cost sensitivity outweighs reliability requirements and full MIL compliance is not mandated |
| JANTXV1N4128 | Identical electrical specs and DO-35 package; qualified to higher JANTXV level with additional burn-in and parametric testing | Supports longer mission-critical lifetimes and tighter lot traceability than JAN grade; higher screening cost | Select for flight hardware or systems requiring enhanced process controls beyond baseline JAN requirements |
Compared with JAN1N4128-1, 1N4128US offers lower cost and RoHS compliance but no MIL qualification or radiation assurance, while JANTXV1N4128 provides superior screening confidence at higher procurement cost - choice depends on program reliability tier and environmental severity.
Availability
JAN1N4128-1 is available at Aetrix Electronics and suitable for aerospace power conditioning, precision instrumentation reference, and downhole oilfield electronics requiring stable component supply with full MIL-qualified traceability and long-term obsolescence management.
Supply support for JAN1N4128-1 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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The JAN1N4128-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for ruggedized voltage regulation in mission-critical systems where parameter stability, radiation tolerance, and extended temperature operation are mandatory.
FAQ
What is the Zener voltage tolerance for JAN1N4128-1?
JAN1N4128-1 has a nominal Zener voltage of 60.0 V with a standard tolerance of ±5%, as defined by JEDEC registration and verified per MIL-PRF-19500/435 test requirements. This tolerance applies under thermal equilibrium conditions at 25 °C ambient temperature with 250 mA test current.
Is JAN1N4128-1 suitable for high-temperature operation?
Yes, JAN1N4128-1 is rated for junction temperatures from –65 °C to +175 °C and is fully characterized across this range. Its metallurgically bonded construction and hermetic DO-35 package ensure stable Zener voltage and low leakage even at maximum rated temperature, making it appropriate for downhole and avionics applications.
Does JAN1N4128-1 meet RoHS requirements?
No, JAN1N4128-1 is not RoHS compliant. The JAN reliability level uses traditional tin-lead plating per MIL-STD-750. RoHS-compliant versions (e.g., 1N4128-1e3) are only available in commercial-grade variants, not in JAN, JANTX, JANTXV, or JANS configurations.
What is the maximum Zener current (IZM) for JAN1N4128-1?
The maximum Zener current for JAN1N4128-1 is 45.6 mA, calculated from its 500 mW power rating and 60 V Zener voltage (IZM = PM(AV)/VZ). This value assumes operation at 25 °C lead temperature; derating is required above 50 °C per the linear derating curve in the datasheet.
How does the noise performance of JAN1N4128-1 compare to lower-voltage Zeners in the same series?
JAN1N4128-1 exhibits 1 µV/√Hz noise density at 250 mA, consistent with the trend for higher-voltage Zeners in the 1N4099–1N4135 family. Lower-voltage devices (e.g., <10 V) show higher noise (up to 40 µV/√Hz), so JAN1N4128-1 is preferred when low-noise 60 V referencing is required.
JAN1N4128-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 60 V
- Tolerance:
- ±5%
- Power - Max:
- -
- 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
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JAN1N4128-1 FAQ
1.How can I place an order for JAN1N4128-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4128-1 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 JAN1N4128-1 reliable?
The price and inventory of JAN1N4128-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4128-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4128-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4128-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4128-1?
JAN1N4128-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4128-1 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 JAN1N4128-1?
For technical support, including JAN1N4128-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4128-1 requirements.
6.How does Aetrix verify that JAN1N4128-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4128-1 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 JAN1N4128-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4128-1?
All JAN1N4128-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4128-1, 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 JAN1N4128-1 part is unused and in its original packaging.
Return procedure for JAN1N4128-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4128-1 Tags
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