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Microchip Technology JAN1N4124-1/TR
- Part No.:
- JAN1N4124-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4124-1/TR.pdf
- Description:
- DIODE ZENER 43V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:3,556
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Product details
Overview
JAN1N4124-1/TR from Microsemi is a 500 mW, 43.0 V ±5% metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded 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 JAN1N4124-1/TR datasheet, JAN1N4124-1/TR pinout, JAN1N4124-1/TR application, or JAN1N4124-1/TR equivalent, key selection criteria include Zener voltage tolerance, noise density at 43 V, thermal resistance junction-to-lead, maximum reverse current at VR = 32.7 V, and MIL-qualified reliability level.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 43.0 V at 250 mA test current, exhibiting a temperature coefficient of +0.095 %/°C and dynamic impedance of 250 Ω at IZT. Its metallurgical bond construction ensures stable breakdown characteristics under thermal cycling.
Designed for operation in the reverse-biased breakdown region, it delivers regulated output with ≤0.01 µA reverse leakage at VR = 32.7 V and maintains low noise density - typical ND is <1 µV/√Hz below 6.8 V, though not specified at 43 V per datasheet - while supporting full 500 mW dissipation at TC = 25 °C with linear derating to zero at 175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 43.0 V at IZT = 250 mA - defines precise regulation point for reference design |
| Zener Tolerance | ±5% - standard JEDEC tolerance; no C/D suffix indicates 5% band |
| Power Dissipation | 500 mW at TC = 25 °C - sets maximum continuous thermal load on PCB layout |
| Dynamic Impedance ZZT | 250 Ω - determines regulation stiffness and output voltage variation under load changes |
| Reverse Leakage IR | ≤0.01 µA at VR = 32.7 V - ensures minimal quiescent current in standby circuits |
| Thermal Resistance RθJL | 250 °C/W @ 3/8″ lead length - guides heatsinking requirements for sustained operation |
| Temp Coefficient αVZ | +0.095 %/°C - quantifies drift magnitude over operating temperature range |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by black band; leads are tin-lead plated and solderable per MIL-STD-750 method 2026. Weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower potential node during regulation |
| Cathode (banded end) | Zener breakdown terminal / regulated output node | Supplies stable 43 V reference when reverse biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 qualification (JAN level) | Validated reliability for aerospace and defense systems requiring extended lifetime and radiation tolerance |
| Metallurgically bonded construction | Eliminates interfacial delamination risk under thermal stress, ensuring long-term parameter stability |
| Hermetically sealed glass package | Prevents moisture ingress and contamination, enabling operation in harsh environmental conditions |
| Non-ESD-sensitive per MIL-STD-750 method 1020 | Reduces handling precautions and eliminates need for ESD protection circuitry in assembly |
| Minimal capacitance (typ. <2 pF) | Preserves high-frequency response in RF biasing and fast-switching reference applications |
Applications
| Avionics Power Reference | Missile Guidance Bias Supply |
|---|---|
Use Scenario: Stable 43 V reference for analog-to-digital converter (ADC) front-end in flight control computers. IC Role / Device Role / Timing Role: Shunt voltage regulator providing precision bias to op-amps and comparators. Use Value: JAN-level qualification ensures operation across -65 °C to +175 °C with <0.01 µA leakage, minimizing ADC offset drift. | Use Scenario: Regulation of sensor excitation voltage in inertial measurement units (IMUs). IC Role / Device Role / Timing Role: Zener reference source for bridge transducer conditioning circuits. Use Value: Metallurgical bond and hermetic seal maintain regulation accuracy during high-G launch vibration and thermal shock. |
| Satellite Telemetry Regulator | Nuclear Instrumentation Supply |
Use Scenario: Voltage clamp in telemetry signal conditioning modules exposed to space radiation. IC Role / Device Role / Timing Role: Radiation-hardened shunt regulator protecting downstream analog circuitry. Use Value: Inherent radiation hardness (MicroNote 050) prevents parametric shift under total ionizing dose exposure. | Use Scenario: High-stability bias supply for Geiger-Müller tube amplifiers in radiation monitoring equipment. IC Role / Device Role / Timing Role: Low-noise, low-drift Zener reference for pulse amplitude discrimination. Use Value: 250 Ω dynamic impedance and +0.095 %/°C tempco enable sub-0.1% regulation error over industrial temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4124US-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads | Requires SMT reflow process; unsuitable for through-hole prototyping or high-vibration mechanical retention | Select when board space is constrained and automated assembly is used |
| JANTXV1N4124-1 | Identical DO-35 package and electrical parameters, but qualified to JANTXV level per MIL-PRF-19500/435 | Higher screening and testing rigor enables use in mission-critical avionics where JAN is insufficient | Select when system-level qualification requires enhanced burn-in and lot traceability |
Compared with JAN1N4124-1/TR, 1N4124US-1 offers footprint reduction at the cost of mechanical robustness, while JANTXV1N4124-1 provides tighter process controls without altering regulation performance - both retain identical VZ, ZZT, and thermal behavior.
Availability
JAN1N4124-1/TR is available at Aetrix Electronics and suitable for avionics power reference, missile guidance bias supply, and satellite telemetry regulator applications requiring stable component supply with full MIL-qualified traceability.
Supply support for JAN1N4124-1/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 JAN1N4124-1/TR belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage regulation in mission-critical systems where parameter stability under extreme temperature, radiation, and mechanical stress is mandatory.
FAQ
What is the Zener voltage and tolerance of JAN1N4124-1/TR?
JAN1N4124-1/TR has a nominal Zener voltage of 43.0 V at IZT = 250 mA with a standard ±5% tolerance, consistent with JEDEC registration and indicated by absence of C (2%) or D (1%) suffix in the part number. This tolerance defines the allowable deviation in regulation setpoint under nominal conditions.
Is JAN1N4124-1/TR RoHS compliant?
No, JAN1N4124-1/TR is not RoHS compliant. Per the datasheet, RoHS-compliant versions (e.g., with e3 suffix) are available only for commercial-grade variants; JAN-level parts retain tin-lead plating to meet MIL-STD-750 solderability requirements and are exempt from RoHS restrictions under defense procurement rules.
What is the maximum reverse leakage current for JAN1N4124-1/TR?
JAN1N4124-1/TR specifies a maximum reverse leakage current IR of 0.01 µA at VR = 32.7 V (75% of VZ). This ultra-low leakage supports low-power bias networks and high-impedance reference nodes where standby current must be minimized.
How is the cathode identified on JAN1N4124-1/TR?
The cathode of JAN1N4124-1/TR is marked by a distinct black band on the glass body. During Zener regulation, the banded end must be held at a higher potential than the anode - i.e., reverse biased - to maintain stable 43 V breakdown conduction.
What does the "TR" suffix indicate in JAN1N4124-1/TR?
The "TR" suffix in JAN1N4124-1/TR denotes tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. It does not affect electrical or reliability specifications; the underlying JAN1N4124-1 device remains unchanged in performance and qualification level.
JAN1N4124-1/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):
- 43 V
- Tolerance:
- ±5%
- Power - Max:
- -
- Impedance (Max) (Zzt):
- 250 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 32.7 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)
JAN1N4124-1/TR FAQ
1.How can I place an order for JAN1N4124-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4124-1/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 JAN1N4124-1/TR reliable?
The price and inventory of JAN1N4124-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4124-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4124-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4124-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4124-1/TR?
JAN1N4124-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4124-1/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 JAN1N4124-1/TR?
For technical support, including JAN1N4124-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4124-1/TR requirements.
6.How does Aetrix verify that JAN1N4124-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4124-1/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 JAN1N4124-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4124-1/TR?
All JAN1N4124-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4124-1/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 JAN1N4124-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4124-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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