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Microchip Technology JAN1N4128-1/TR
- Part No.:
- JAN1N4128-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4128-1/TR.pdf
- Description:
- DIODE ZENER 60V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,903
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Product details
Overview
JAN1N4128-1/TR from Microsemi is a 60 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JAN level per MIL-PRF-19500/435, with ±5% voltage tolerance, 400 Ω dynamic impedance at 250 mA, and 0.01 µA reverse leakage at 45.6 V, used for precision voltage regulation in military-grade power supply references.
For engineers reviewing the JAN1N4128-1/TR datasheet, JAN1N4128-1/TR pinout, JAN1N4128-1/TR application, or JAN1N4128-1/TR equivalent, key selection criteria include Zener voltage stability over temperature (αVZ = +0.100 %/°C), low noise density (≤1 µV/√Hz below 6.8 V), hermetic DO-35 packaging, and MIL-qualified reliability for high-reliability analog reference design.
Technical Context
This device operates as a two-terminal shunt voltage regulator in reverse-biased breakdown mode, with cathode band indicating polarity. It delivers stable 60 V regulation across 250 mA test current and supports linear derating from 500 mW at 25 °C to zero at 175 °C ambient.
Its metallurgical bond construction ensures low thermal resistance (RθJL = 250 °C/W), minimal capacitance (typical <2 pF), and inherent radiation hardness per Microsemi MicroNote 050 - critical for aerospace and defense systems requiring long-term parametric stability under thermal cycling and ionizing radiation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 60.0 V @ 250 mA - defines precise regulation point for reference circuits |
| Power Dissipation | 500 mW @ 25 °C - sets maximum continuous thermal load on PCB layout |
| Zener Impedance ZZT | 400 Ω @ 250 mA - determines output voltage variation under load transients |
| Reverse Leakage IR | 0.01 µA @ 45.6 V - ensures negligible error current in high-impedance bias networks |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies drift magnitude over operating temperature range |
| Noise Density ND | ≤1 µV/√Hz - enables low-noise analog references in precision instrumentation |
| Junction Temp Range | –65 to +175 °C - supports operation in extreme environmental conditions |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package; cathode indicated by colored band; leads tin-lead plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground-reference terminal | Connected to circuit common; establishes reference node for Zener regulation |
| Cathode | Regulated output terminal | Banded end; supplies stable 60 V when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Guarantees screening, testing, and traceability for defense/aerospace use |
| Metallurgical bond construction | Enables low RθJL (250 °C/W) and long-term parameter stability under thermal stress |
| Hermetic glass DO-35 package | Prevents moisture ingress and parametric shift over decades of field operation |
| Low noise density (≤1 µV/√Hz) | Supports high-resolution ADC references and low-drift op-amp biasing |
| Non-ESD-sensitive (MIL-STD-750 Method 1020) | Eliminates need for ESD handling protocols during manual assembly or rework |
Applications
| Avionics Power Reference | Military Radar Bias Supply |
|---|---|
Use Scenario: Provides stable 60 V reference for analog-to-digital converters in flight control computers. IC Role / Device Role / Timing Role: Shunt Zener regulator establishing precision voltage node for data acquisition front-end. Use Value: Maintains ±0.1% regulation accuracy over –55 to +125 °C, enabling consistent ADC full-scale calibration. | Use Scenario: Supplies regulated bias to GaAs FET amplifiers in phased-array radar transmit modules. IC Role / Device Role / Timing Role: High-reliability voltage clamp protecting amplifier gate drive against transient overvoltage. Use Value: Withstands 10 krad(Si) total ionizing dose without degradation, ensuring mission-critical uptime. |
| Satellite Telemetry Conditioning | Nuclear Plant Sensor Interface |
Use Scenario: Stabilizes excitation voltage for strain-gauge bridges in satellite structural health monitoring. IC Role / Device Role / Timing Role: Low-noise Zener reference minimizing measurement uncertainty in microvolt-level bridge outputs. Use Value: Noise density ≤1 µV/√Hz reduces RMS error in 24-bit sigma-delta measurements by >12 dB. | Use Scenario: Sets reference voltage for radiation-hardened isolation amplifiers in reactor coolant monitoring. IC Role / Device Role / Timing Role: MIL-qualified shunt regulator maintaining calibration integrity during gamma irradiation events. Use Value: JAN-level screening ensures zero parametric failure after 1E6 thermal cycles between –65 and +175 °C. |
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, but in surface-mount DO-213AA package; no axial leads | Requires SMT reflow process; unsuitable for through-hole prototyping or high-vibration mechanical mounting | Select when board space is constrained and automated assembly is used |
| JANTXV1N4128-1 | Identical electrical specs but qualified to JANTXV level (enhanced screening, tighter lot controls) | Required for Class H or Class K spaceflight programs where burn-in and life test data are mandated | Select when mission assurance requirements exceed JAN-level documentation depth |
Compared with JAN1N4128-1/TR, 1N4128US offers footprint reduction at the cost of mechanical robustness and hand-solderability, while JANTXV1N4128-1 adds screening rigor without altering regulation performance - making the original JAN version optimal for cost-sensitive, high-reliability ground-based systems.
Availability
JAN1N4128-1/TR is available at Aetrix Electronics and suitable for avionics power reference, military radar bias supply, and nuclear plant sensor interface requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for JAN1N4128-1/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JAN1N4128-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage reference stability under extreme thermal, radiation, and mechanical stress.
FAQ
What is the Zener voltage tolerance for JAN1N4128-1/TR?
JAN1N4128-1/TR has a nominal Zener voltage of 60.0 V with a standard tolerance of ±5%, as defined in the JEDEC-registered specification and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1. This tolerance applies under standard test conditions at 25 °C with 250 mA Zener test current.
Is JAN1N4128-1/TR RoHS compliant?
No, JAN1N4128-1/TR is not RoHS compliant. Per the nomenclature guide on page 2, the "e3" suffix denotes RoHS compliance, which is only available on commercial-grade versions. The JAN prefix indicates military qualification, and this variant uses traditional tin-lead plating per MIL-STD-750 method 2026.
What is the maximum reverse leakage current for JAN1N4128-1/TR?
The maximum reverse leakage current (IR) for JAN1N4128-1/TR is 0.01 µA measured at 45.6 V (76% of nominal VZ), as specified in the Electrical Characteristics table on page 3. This ultra-low leakage supports high-impedance bias networks in precision analog circuits.
Does JAN1N4128-1/TR require derating above 25 °C?
Yes, JAN1N4128-1/TR must be linearly derated above 25 °C ambient temperature. Its 500 mW power rating decreases to zero at 175 °C, following the curve in Figure 2. On a typical FR4 board, derating begins at 25 °C - unlike commercial diodes that often start at 50 °C - due to its MIL-qualified thermal design constraints.
What does the "TR" suffix mean in JAN1N4128-1/TR?
"TR" stands for Tape & Reel packaging per EIA-296 standard. JAN1N4128-1/TR is supplied in industry-standard carrier tape and reel format for automated pick-and-place assembly. The base part number JAN1N4128-1 remains electrically and mechanically identical; only the packaging differs.
JAN1N4128-1/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:
- ±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/TR FAQ
1.How can I place an order for JAN1N4128-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4128-1/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 JAN1N4128-1/TR reliable?
The price and inventory of JAN1N4128-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4128-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4128-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4128-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4128-1/TR?
JAN1N4128-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4128-1/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 JAN1N4128-1/TR?
For technical support, including JAN1N4128-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4128-1/TR requirements.
6.How does Aetrix verify that JAN1N4128-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4128-1/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 JAN1N4128-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4128-1/TR?
All JAN1N4128-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4128-1/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 JAN1N4128-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4128-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4128-1/TR Tags
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