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Microchip Technology JANS1N4128C-1/TR
- Part No.:
- JANS1N4128C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4128C-1/TR.pdf
- Description:
- DIODE ZENER 60V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,320
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Product details
Overview
JANS1N4128C-1/TR from Microsemi is a 60 V, 2% 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 applications requiring stable voltage regulation under wide temperature and current variation.
For engineers reviewing the JANS1N4128C-1/TR datasheet, JANS1N4128C-1/TR pinout, JANS1N4128C-1/TR application, or JANS1N4128C-1/TR equivalent, this page delivers verified Zener voltage (60.0 V), dynamic impedance (400 Ω), noise density (1 µV/√Hz), temperature coefficient (+0.100 %/°C), and JANS-level radiation-hardened qualification - all critical for precision reference and hardened power supply design.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased breakdown mode, with cathode band marking polarity. Its metallurgical bond construction ensures low leakage (<0.01 µA at VR = 45.6 V) and minimal capacitance (~5.1 pF typical), enabling stable regulation across -65 °C to +175 °C junction temperature range.
It exhibits a positive temperature coefficient of +0.100 %/°C above 60 V, supporting predictable drift compensation in high-temperature analog circuits. Power dissipation is linearly derated from 500 mW at 25 °C ambient to zero at 175 °C, with thermal resistance junction-to-lead at 250 °C/W for 10 mm lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 60.0 V at 250 mA test current - provides precise reference point for regulated power rails or feedback networks. |
| Zener Tolerance | ±2% (C-grade) - enables tighter output voltage control vs. standard ±5% parts in mission-critical systems. |
| Power Rating | 500 mW at 25 °C - supports robust operation in high-current reference paths without external heat sinking. |
| Dynamic Impedance ZZT | 400 Ω at 250 mA - ensures low AC impedance for stable regulation under varying load conditions. |
| Noise Density ND | 1 µV/√Hz at 250 mA - minimizes broadband noise injection into sensitive analog signal chains. |
| Temp Coefficient αVZ | +0.100 %/°C - enables predictable voltage drift modeling over extended temperature ranges. |
| Reverse Leakage IR | ≤0.01 µA at 45.6 V - guarantees negligible current draw in standby or low-power monitoring circuits. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with cathode indicated by colored band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; defines reference return path for regulation. |
| Cathode | Zener regulation terminal / voltage reference output | Banded end; connected to unregulated input; supplies stable 60 V output when reverse-biased. |
Key Features
| Feature | Design Value |
|---|---|
| JANS qualification per MIL-PRF-19500/435 | Meets highest military reliability screening for aerospace flight hardware and nuclear instrumentation. |
| Metallurgical bond construction | Eliminates interfacial voids, ensuring long-term stability and low parametric drift under thermal cycling. |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for space and high-radiation terrestrial environments. |
| Low noise density | 1 µV/√Hz enables use in precision analog references where spectral purity affects ADC accuracy or sensor signal integrity. |
| Hermetic glass sealing | Prevents moisture ingress and corrosion, maintaining electrical performance over 20+ year service life in harsh environments. |
Applications
| Avionics Power Reference | Nuclear Instrumentation Bias |
|---|---|
Use Scenario: Providing stable 60 V reference for analog-to-digital converter front-ends in flight data recorders. IC Role / Device Role / Timing Role: Zener voltage reference source for precision scaling and offset calibration. Use Value: ±2% tolerance and +0.100 %/°C TC ensure <±0.5% total error over -55 °C to +125 °C operating range. | Use Scenario: Biasing photomultiplier tube (PMT) anodes in radiation detection systems. IC Role / Device Role / Timing Role: High-stability DC bias generator with low noise and radiation immunity. Use Value: 1 µV/√Hz noise density prevents signal degradation in ultra-low-current pulse detection. |
| Satellite Power Conditioning | Tactical Radio Voltage Clamp |
Use Scenario: Regulating auxiliary rail in LEO satellite power management units exposed to total ionizing dose >100 krad(Si). IC Role / Device Role / Timing Role: Radiation-hardened voltage clamp protecting downstream regulators from transient overvoltage. Use Value: Inherent radiation hardness eliminates need for shielding or derating, reducing SWaP-C. | Use Scenario: Overvoltage protection on 48 V DC input of handheld military radios during EMP events. IC Role / Device Role / Timing Role: Fast-response shunt regulator clamping surge energy before it reaches sensitive RF ICs. Use Value: 500 mW rating and 400 Ω dynamic impedance enable reliable clamping at 250 mA without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4128C-1 | Same 60 V, ±2%, DO-35, but qualified only to JANTXV level (not JANS); lower screening rigor and no radiation hardness documentation. | Limited to ground-based military systems where full JANS radiation testing is not mandated. | Select when cost sensitivity outweighs space/flight qualification requirements. |
| 1N4128C-1/TR | Commercial-grade version; same electrical specs but lacks MIL-PRF-19500/435 qualification and radiation hardening. | Suitable for industrial test equipment or non-safety-critical instrumentation where environmental stress is moderate. | Choose for prototyping or commercial production where JANS certification is unnecessary. |
Compared with JANTXV1N4128C-1 and 1N4128C-1/TR, the JANS1N4128C-1/TR uniquely delivers documented radiation hardness, full JANS screening, and guaranteed performance from -65 °C to +175 °C - making it the sole option for flight-critical avionics and nuclear safety systems.
Availability
JANS1N4128C-1/TR is available at Aetrix Electronics and suitable for avionics power reference, nuclear instrumentation bias, and satellite power conditioning requiring stable component supply across extended temperature and radiation environments.
Supply support for JANS1N4128C-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 analog and mixed-signal components.
The JANS1N4128C-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, designed specifically for voltage reference and regulation in mission-critical defense, space, and nuclear applications where failure is not an option.
FAQ
What is the Zener voltage and tolerance of JANS1N4128C-1/TR?
JANS1N4128C-1/TR has a nominal Zener voltage of 60.0 V at 250 mA test current with ±2% tolerance (denoted by 'C' in the part number). This tight tolerance ensures consistent regulation in high-precision reference circuits where output stability is critical across temperature and aging.
Is JANS1N4128C-1/TR qualified to JANS level per MIL-PRF-19500/435?
Yes, JANS1N4128C-1/TR is fully qualified to JANS level per MIL-PRF-19500/435, including rigorous environmental, electrical, and reliability testing required for spaceflight and nuclear applications. This qualification is documented in Microsemi's T4-LDS-0245-2 specification.
What is the maximum reverse leakage current for JANS1N4128C-1/TR?
JANS1N4128C-1/TR has a maximum reverse leakage current (IR) of 0.01 µA at VR = 45.6 V, as specified in the Electrical Characteristics table. This ultra-low leakage supports high-impedance bias networks and minimizes power loss in battery-backed or low-quiescent systems.
Does JANS1N4128C-1/TR have radiation hardness?
Yes, JANS1N4128C-1/TR is inherently radiation-hardened as described in Microsemi MicroNote 050. Its metallurgically bonded structure and hermetic DO-35 packaging provide proven resilience to total ionizing dose (TID) and displacement damage, making it suitable for space and nuclear environments.
What is the noise density specification for JANS1N4128C-1/TR?
JANS1N4128C-1/TR has a maximum noise density of 1 µV/√Hz at 250 mA Zener test current, measured in the 1–3 kHz band. This low noise performance is essential for precision analog references where spectral contamination could degrade ADC resolution or sensor signal fidelity.
JANS1N4128C-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:
- 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)
JANS1N4128C-1/TR FAQ
1.How can I place an order for JANS1N4128C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4128C-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 JANS1N4128C-1/TR reliable?
The price and inventory of JANS1N4128C-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 JANS1N4128C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4128C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4128C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4128C-1/TR?
JANS1N4128C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4128C-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 JANS1N4128C-1/TR?
For technical support, including JANS1N4128C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4128C-1/TR requirements.
6.How does Aetrix verify that JANS1N4128C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4128C-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 JANS1N4128C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4128C-1/TR?
All JANS1N4128C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4128C-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 JANS1N4128C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4128C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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