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Microchip Technology JAN1N4128C-1/TR
- Part No.:
- JAN1N4128C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4128C-1/TR.pdf
- Description:
- DIODE ZENER 60V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,921
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Product details
Overview
JAN1N4128C-1/TR from Microsemi is a 60 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JAN level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4128C-1/TR datasheet, JAN1N4128C-1/TR pinout, JAN1N4128C-1/TR application, or JAN1N4128C-1/TR equivalent, key selection criteria include Zener voltage tolerance (±2%), noise density (≤1 µV/√Hz), thermal resistance (250 °C/W junction-to-lead), and MIL-spec qualification level - all critical for precision reference and radiation-hardened designs.
Technical Context
This device operates as a reverse-biased voltage reference with a nominal Zener voltage of 60.0 V at 250 mA test current, exhibiting low dynamic impedance (400 Ω) and minimal temperature coefficient (+0.100 %/°C). Its metallurgical bond construction ensures stable breakdown characteristics under thermal cycling and mechanical stress.
Designed for operation in the Zener breakdown region, it delivers regulated voltage across wide current ranges (IZK to IZM = 45.6 mA max), with leakage current limited to ≤0.01 µA at VR = 48 V and noise density specified at ≤1 µV/√Hz - enabling use in low-noise analog references and precision biasing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 60.0 V ±2% at IZT = 250 mA - defines precise regulation point for reference design |
| Power Dissipation | 500 mW @ TL = 25 °C - supports stable operation in compact leaded layouts with 3/8″ lead length |
| Zener Impedance ZZT | 400 Ω max - ensures minimal output voltage variation under load transients |
| Noise Density | ≤1 µV/√Hz - enables use in low-noise analog references and sensor excitation |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies drift over temperature for stability-critical applications |
| Reverse Leakage IR | ≤0.01 µA @ VR = 48 V - guarantees high impedance in off-state for accurate sensing |
| Junction Temp Range | –65 to +175 °C - supports operation in extreme environmental conditions |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by 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 circuit common; establishes reference potential for regulation |
| Cathode | Zener output terminal | Banded end; supplies regulated 60 V when reverse biased above breakdown |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Validated reliability for aerospace and defense systems requiring traceable screening |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration |
| Low noise density (≤1 µV/√Hz) | Enables direct use in precision analog references without external filtering |
| Hermetic glass DO-35 package | Prevents moisture ingress and long-term parameter drift in harsh environments |
| 1% to 5% Zener tolerance options | Supports cost-performance trade-offs across commercial and high-reliability variants |
Applications
| Avionics Power Reference | Satellite DC-DC Converter Feedback |
|---|---|
Use Scenario: Provides stable 60 V reference for voltage-controlled oscillators and ADC biasing in flight control computers. IC Role / Device Role / Timing Role: Precision Zener reference diode supplying fixed voltage to op-amp comparator inputs. Use Value: ±2% tolerance and +0.100 %/°C tempco ensure <±0.6 V drift over –55 to +125 °C operating range. | Use Scenario: Sets feedback threshold in isolated flyback converter regulating 60 V bus for payload instrumentation. IC Role / Device Role / Timing Role: Zener regulator establishing error amplifier reference in secondary-side feedback loop. Use Value: 400 Ω dynamic impedance minimizes regulation error under 10–50 mA load variations. |
| Nuclear Instrumentation Bias Supply | Tactical Radio RF Amplifier Bias |
Use Scenario: Generates stable bias for photomultiplier tube (PMT) dynode chains in radiation detection modules. IC Role / Device Role / Timing Role: High-voltage Zener reference delivering low-noise 60 V to cascaded dynode stages. Use Value: ≤1 µV/√Hz noise density prevents signal corruption in sub-picoamp current measurements. | Use Scenario: Supplies gate bias to GaN HEMT drivers in S-band transmitter final stages. IC Role / Device Role / Timing Role: Zener clamp protecting gate drive circuitry from transient overvoltage. Use Value: Hermetic DO-35 package withstands thermal cycling and humidity exposure in field-deployed radios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4128US-1 | Same 60 V, 2% spec but in DO-213AA surface-mount package; no axial leads | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping | Select when automated assembly and space-constrained layouts are required |
| JANTXV1N4128C-1 | Identical electrical specs but qualified to JANTXV level with enhanced screening and lot traceability | Required for programs mandating extended burn-in and radiation hardness documentation | Select when full JANTXV compliance and extended reliability data are contractually mandated |
Compared with JAN1N4128C-1/TR, the 1N4128US-1 enables miniaturization at the cost of manual assembly compatibility, while JANTXV1N4128C-1 adds screening rigor without altering regulation performance - making the JAN version optimal for cost-sensitive, high-reliability through-hole deployments.
Availability
JAN1N4128C-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite DC-DC converter feedback, and nuclear instrumentation bias supply requiring stable component supply with full MIL-spec traceability and RoHS-compliant plating.
Supply support for JAN1N4128C-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 JAN1N4128C-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage regulation in mission-critical systems where parameter stability, radiation tolerance, and long-term hermetic integrity are non-negotiable.
FAQ
What is the Zener voltage tolerance for JAN1N4128C-1/TR?
JAN1N4128C-1/TR has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its nomenclature. This means its nominal 60.0 V Zener voltage is guaranteed between 58.8 V and 61.2 V at IZT = 250 mA and TA = 25 °C. The tighter tolerance supports precision regulation where standard ±5% devices would introduce unacceptable error margins.
Is JAN1N4128C-1/TR suitable for high-temperature operation?
Yes, JAN1N4128C-1/TR is rated for junction temperatures from –65 °C to +175 °C and features linear power derating from 500 mW at 25 °C to zero at 175 °C. Its metallurgically bonded construction and hermetic DO-35 package ensure stable Zener voltage and low leakage even under sustained thermal stress, making it suitable for engine bay or spacecraft thermal environments.
Does JAN1N4128C-1/TR meet RoHS requirements?
JAN1N4128C-1/TR uses RoHS-compliant annealed matte-tin plating on its leads, as confirmed in the Microsemi T4-LDS-0245-2 datasheet. While the "e3" RoHS suffix is reserved for commercial-grade versions, the JAN-level part retains RoHS compliance per MIL-STD-750 method 2026 solderability testing - verified for lead-free assembly processes.
What is the maximum Zener current IZM for JAN1N4128C-1/TR?
The maximum Zener current IZM for JAN1N4128C-1/TR 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; actual usable current decreases with rising ambient or lead temperature due to thermal derating per Figure 2 in the datasheet.
How does the noise performance of JAN1N4128C-1/TR compare to lower-voltage Zeners?
JAN1N4128C-1/TR exhibits ≤1 µV/√Hz noise density at IZT = 250 mA - consistent with Microsemi's specification that noise falls rapidly below 6.8 V and stabilizes at this ultra-low level for voltages ≥60 V. This makes it significantly quieter than mid-range Zeners (e.g., 12 V parts at ~40 µV/√Hz), supporting high-fidelity analog references where noise floor directly impacts measurement resolution.
JAN1N4128C-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:
- ±2%
- 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)
JAN1N4128C-1/TR FAQ
1.How can I place an order for JAN1N4128C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4128C-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 JAN1N4128C-1/TR reliable?
The price and inventory of JAN1N4128C-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 JAN1N4128C-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4128C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4128C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4128C-1/TR?
JAN1N4128C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4128C-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 JAN1N4128C-1/TR?
For technical support, including JAN1N4128C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4128C-1/TR requirements.
6.How does Aetrix verify that JAN1N4128C-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4128C-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 JAN1N4128C-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4128C-1/TR?
All JAN1N4128C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4128C-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 JAN1N4128C-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4128C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4128C-1/TR Tags
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