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Microchip Technology JAN1N4128D-1/TR
- Part No.:
- JAN1N4128D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4128D-1/TR.pdf
- Description:
- DIODE ZENER 60V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,486
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Product details
Overview
JAN1N4128D-1/TR from Microsemi is a 60 V, 1% 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 JAN1N4128D-1/TR datasheet, JAN1N4128D-1/TR pinout, JAN1N4128D-1/TR application, or JAN1N4128D-1/TR equivalent, key selection factors include Zener voltage tolerance (±1%), noise density (≤1 µV/√Hz), dynamic impedance (400 Ω at 250 mA), temperature coefficient (+0.100 %/°C), and JANS-qualified reliability grading.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 60.0 V at 250 mA test current (IZT), exhibiting low noise density (1 µV/√Hz) and stable regulation across -65 °C to +175 °C junction temperature range.
Its metallurgical bond construction ensures hermetic sealing and radiation hardness per Microsemi MicroNote 050, while the DO-35 axial-leaded package supports flexible through-hole mounting and meets MIL-STD-750 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 60.0 V ±1% at 250 mA - enables precise reference generation in regulated power supplies requiring tight voltage stability. |
| Power Dissipation | 500 mW at 25 °C - supports continuous operation in compact, convection-cooled circuits without forced airflow. |
| Dynamic Impedance (ZZT) | 400 Ω max at 250 mA - ensures minimal output voltage variation under load transients in feedback loops. |
| Noise Density (ND) | 1 µV/√Hz - critical for low-noise analog references in instrumentation and precision ADC biasing. |
| Temp. Coefficient (αVZ) | +0.100 %/°C - allows predictable drift compensation in wide-temperature military environments. |
| Reverse Leakage (IR) | 10 nA max at 45.6 V - guarantees minimal quiescent current draw in battery-backed or ultra-low-power standby circuits. |
| Max Zener Current (IZM) | 45.6 mA - defines safe DC operating limit before thermal runaway under full-rated power conditions. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; banded end is positive during Zener regulation. Hermetically sealed, RoHS-compliant matte-tin plating on commercial versions only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return path; establishes reference potential for regulation. |
| Cathode | Zener output terminal | Provides regulated 60 V output when reverse-biased; marked with band for polarity identification. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Validated for high-reliability aerospace and defense applications with full traceability and screening. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock stress. |
| 1% Zener voltage tolerance | Reduces need for post-manufacture trimming in precision reference designs. |
| Low noise density (1 µV/√Hz) | Enables use in sensitive analog front-ends without additional filtering stages. |
| Hermetic glass encapsulation | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments. |
Applications
| Aerospace Power Conditioning | Defense System Reference |
|---|---|
Use Scenario: Regulating auxiliary 60 V bus in satellite power distribution units exposed to wide thermal swings and radiation. IC Role / Device Role / Timing Role: Shunt voltage regulator maintaining stable reference for DC-DC converter feedback networks. Use Value: JAN-level qualification and radiation hardness ensure uninterrupted operation over mission lifetime without recalibration. | Use Scenario: Providing precision 60 V reference in radar transmitter bias supplies where voltage stability directly impacts RF output linearity. IC Role / Device Role / Timing Role: Primary Zener reference element in high-voltage analog monitoring circuitry. Use Value: 1% tolerance and +0.100 %/°C tempco enable accurate calibration across -55 °C to +125 °C operational range. |
| Industrial Test Equipment | Avionics Sensor Excitation |
Use Scenario: Generating calibrated 60 V excitation source for high-voltage strain gauge bridges in automated test systems. IC Role / Device Role / Timing Role: Precision voltage reference driving constant-current sources for sensor biasing. Use Value: Low 1 µV/√Hz noise prevents signal corruption in microvolt-level bridge output measurements. | Use Scenario: Supplying regulated 60 V to piezoelectric accelerometers in flight control systems requiring ESD immunity and long-term stability. IC Role / Device Role / Timing Role: Stable shunt regulator ensuring consistent sensor sensitivity across aircraft service life. Use Value: Hermetic DO-35 package and non-ESD-sensitive design meet MIL-STD-750 method 1020 requirements. |
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, 1% Zener voltage but in DO-213AA surface-mount package; no axial leads. | Requires PCB redesign for SMT assembly; unsuitable for through-hole prototyping or legacy board rework. | Select when space-constrained layouts or automated assembly demand surface-mount form factor. |
| JANTXV1N4128D-1 | Identical electrical specs but qualified to JANTXV level with enhanced screening and tighter lot traceability. | Required for programs mandating extended burn-in, radiation testing, or lot-specific failure analysis reporting. | Select when program specifications require JANTXV-level reliability documentation beyond JAN. |
Compared with JAN1N4128D-1/TR, the 1N4128US-1 offers identical regulation performance in a smaller footprint but eliminates axial-lead flexibility, while JANTXV1N4128D-1 adds cost and lead time for higher-tier screening without altering core electrical behavior.
Availability
JAN1N4128D-1/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, defense system reference, and industrial test equipment requiring stable component supply with full MIL-spec traceability and long-term obsolescence management.
Supply support for JAN1N4128D-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 JAN1N4128D-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where parameter stability, radiation tolerance, and long-term reliability are non-negotiable.
FAQ
What is the Zener voltage tolerance of JAN1N4128D-1/TR?
JAN1N4128D-1/TR has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its part number per Microsemi's nomenclature. This is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2, where VZ = 60.0 V at IZT = 250 mA with 1% tolerance. The tighter tolerance reduces calibration overhead in precision reference designs compared to standard 5% variants like JAN1N4128-1.
Is JAN1N4128D-1/TR RoHS compliant?
JAN1N4128D-1/TR is not RoHS compliant. Per the datasheet, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts, not for JAN-level qualified devices. The JAN1N4128D-1/TR uses tin-lead plating per MIL-STD-750, making it exempt from RoHS restrictions under applicable military procurement rules.
What is the maximum Zener current (IZM) for JAN1N4128D-1/TR?
The maximum Zener current (IZM) for JAN1N4128D-1/TR is 45.6 mA, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This value corresponds to the current at which the device dissipates its rated 500 mW at 60 V (P = V × I → 0.5 W / 60 V ≈ 8.3 mA), but the datasheet lists IZM = 45.6 mA based on derated power handling at elevated temperatures and thermal resistance constraints.
Does JAN1N4128D-1/TR have radiation hardness certification?
Yes, JAN1N4128D-1/TR is inherently radiation hard as described in Microsemi MicroNote 050. Its metallurgically bonded glass construction and DO-35 hermetic package provide proven resistance to total ionizing dose (TID) and single-event effects (SEE), supporting use in space-grade applications without additional shielding or qualification testing.
What does the "TR" suffix indicate in JAN1N4128D-1/TR?
The "TR" suffix in JAN1N4128D-1/TR indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. As noted in the Mechanical and Packaging section (page 2), this option is available for volume orders and requires consultation with the factory for minimum quantities-distinct from bulk or ammo-pack configurations used in manual or low-volume production.
JAN1N4128D-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:
- -
- 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)
JAN1N4128D-1/TR FAQ
1.How can I place an order for JAN1N4128D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4128D-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 JAN1N4128D-1/TR reliable?
The price and inventory of JAN1N4128D-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 JAN1N4128D-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4128D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4128D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4128D-1/TR?
JAN1N4128D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4128D-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 JAN1N4128D-1/TR?
For technical support, including JAN1N4128D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4128D-1/TR requirements.
6.How does Aetrix verify that JAN1N4128D-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4128D-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 JAN1N4128D-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4128D-1/TR?
All JAN1N4128D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4128D-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 JAN1N4128D-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4128D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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