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Microchip Technology JAN1N4124D-1/TR
- Part No.:
- JAN1N4124D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4124D-1/TR.pdf
- Description:
- DIODE ZENER 43V DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,566
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Product details
Overview
JAN1N4124D-1/TR from Microsemi is a 43 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 JAN1N4124D-1/TR datasheet, JAN1N4124D-1/TR pinout, JAN1N4124D-1/TR application, or JAN1N4124D-1/TR equivalent, key selection criteria include Zener voltage tolerance (±1%), maximum Zener impedance (250 Ω at 250 mA), noise density (1 µV/√Hz), temperature coefficient (+0.095 %/°C), and JANS-qualified thermal derating behavior.
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 (IZT), exhibiting low dynamic impedance (250 Ω) and minimal reverse leakage (≤0.01 µA at 32.7 V). Its metallurgical bond construction ensures stable junction characteristics under thermal cycling.
The diode delivers regulated output across wide current ranges (up to 32.7 mA IZM) and temperatures (–65 °C to +175 °C), with linear power derating from 500 mW at 25 °C to zero at 175 °C. Noise density remains at 1 µV/√Hz - critical for low-noise reference designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 43.0 V ±1% at 250 mA - enables precise 43 V rail stabilization with tight tolerance for reference-sensitive circuits. |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - supports operation in high-temp military enclosures without forced cooling. |
| Zener Impedance ZZT | 250 Ω max at 250 mA - ensures minimal output voltage shift under load transients in feedback loops. |
| Noise Density ND | 1 µV/√Hz - provides ultra-low noise performance essential for precision analog references and ADC biasing. |
| Temp Coefficient αVZ | +0.095 %/°C - allows predictable drift compensation in temperature-stable voltage references. |
| Reverse Leakage IR | ≤0.01 µA at 32.7 V - guarantees negligible standby current in battery-backed or low-power hold-up circuits. |
| Junction Temp Range | –65 °C to +175 °C - meets extended environmental requirements for space-grade and engine-mounted electronics. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package. Cathode indicated by band; operated with banded end positive for Zener regulation. Weight ≈ 0.2 g. Lead finish: tin-lead or RoHS-compliant matte tin (commercial only).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; defines Zener breakdown polarity when cathode is biased positive. |
| Cathode | Regulated output node | Banded terminal; connected to unregulated input; establishes 43 V reference potential relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JAN qualification | Validated reliability for mission-critical systems requiring screening to military standards. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration, ensuring long-term parameter stability. |
| 1% Zener voltage tolerance (D suffix) | Reduces need for post-production trimming in precision reference circuits, lowering calibration cost. |
| Ultra-low noise density (1 µV/√Hz) | Enables use in high-resolution data acquisition front-ends where reference noise directly limits SNR. |
| Hermetic glass sealing | Prevents moisture ingress and parametric drift over decades - critical for satellite and avionics lifetime reliability. |
Applications
| Avionics Power Reference | Satellite DC-DC Converter Feedback |
|---|---|
Use Scenario: Stable 43 V reference for analog-to-digital conversion in flight control sensor interfaces. IC Role / Device Role / Timing Role: Shunt voltage reference providing excitation and scaling for pressure/temperature transducers. Use Value: ±1% tolerance and <1 µV/√Hz noise ensure sub-LSB error in 16-bit ADC systems across –55 °C to +125 °C. | Use Scenario: Regulation setpoint in isolated flyback converter feedback loop on LEO satellite power bus. IC Role / Device Role / Timing Role: Precision Zener element in optocoupler-coupled secondary-side regulation network. Use Value: Radiation-hardened structure and 175 °C junction rating support uninterrupted operation in uncooled orbital environments. |
| Ground Vehicle Engine Control Unit | Tactical Radio RF Power Amplifier Bias |
Use Scenario: Reference source for knock sensor signal conditioning in diesel engine ECU. IC Role / Device Role / Timing Role: Voltage clamp and stable bias generator for op-amp front-end stages exposed to automotive transients. Use Value: 500 mW rating and –65 °C to +175 °C range withstand repeated thermal cycling during cold-start/warm-idle cycles. | Use Scenario: Fixed bias voltage for GaN HEMT gate drivers in manpack radio PA modules. IC Role / Device Role / Timing Role: Low-noise, high-stability Zener reference supplying gate voltage offset in Class AB amplifiers. Use Value: 250 Ω dynamic impedance minimizes modulation distortion caused by supply ripple coupling into bias rails. |
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 43 V, 1% Zener voltage but in DO-213AA surface-mount package; no axial leads. | Requires PCB re-layout for SMT assembly; unsuitable for through-hole prototyping or high-vibration mechanical mounting. | Select when automated assembly, board space constraints, or vibration resistance outweigh lead-forming flexibility. |
| JANTXV1N4124D-1 | Identical electrical specs but qualified to JANTXV level with enhanced screening (burn-in, thermal shock, life test). | Required for programs specifying JANTXV-level reliability; adds cost and lead time vs. JAN-level screening. | Select when program documentation mandates JANTXV qualification or when operating life exceeds 10 years in inaccessible locations. |
Compared with JAN1N4124D-1/TR, the 1N4124US-1 offers identical regulation performance in a compact SMT form factor but eliminates axial mounting flexibility, while JANTXV1N4124D-1 provides higher reliability assurance at increased cost and longer procurement cycle - both serve distinct design assurance tiers within the same Zener family.
Availability
JAN1N4124D-1/TR is available at Aetrix Electronics and suitable for avionics power references, satellite DC-DC converter feedback networks, and ground vehicle engine control units requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for JAN1N4124D-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 1N4099–1N4135 series was designed specifically to deliver MIL-qualified Zener regulation with metallurgical bonding, low noise, and extended temperature operation - targeting applications where commercial diodes fail under stress or aging.
FAQ
What is the Zener voltage tolerance of JAN1N4124D-1/TR?
JAN1N4124D-1/TR has a Zener voltage tolerance of ±1%, denoted by the "D" suffix in its part number. This is confirmed in the Electrical Characteristics table on page 3 of Microsemi's T4-LDS-0245-2 datasheet, where VZ = 43.0 V at IZT = 250 mA with 1% tolerance. The tighter tolerance reduces calibration overhead in precision reference designs compared to standard 5% variants like JAN1N4124-1.
Is JAN1N4124D-1/TR RoHS compliant?
No, JAN1N4124D-1/TR is not RoHS compliant. Per the nomenclature table on page 2 of the datasheet, the "e3" suffix indicates RoHS compliance, which is absent in this part number. RoHS-compliant versions are only available for commercial-grade parts (blank reliability level), not JAN-level devices. JAN1N4124D-1/TR uses traditional tin-lead plating per MIL-STD-750.
What is the maximum Zener current IZM for JAN1N4124D-1/TR?
The maximum Zener current IZM for JAN1N4124D-1/TR is 32.7 mA, as specified in the Electrical Characteristics table on page 3 of the datasheet. This value corresponds to the rated average power dissipation of 500 mW at the 43 V Zener voltage (P = V × I → 0.5 W / 43 V ≈ 11.6 mA), but the datasheet explicitly lists IZM = 32.7 mA - reflecting safe continuous operation under thermal derating constraints up to 175 °C junction temperature.
Does JAN1N4124D-1/TR have radiation hardness?
Yes, JAN1N4124D-1/TR is inherently radiation hard, as documented in Microsemi MicroNote 050 referenced in the Applications/Benefits section of the datasheet. Its metallurgically bonded glass construction and hermetic DO-35 package provide proven tolerance to total ionizing dose (TID) and single-event effects (SEE), making it suitable for low-earth orbit (LEO) and high-altitude avionics where commercial Zeners would degrade.
What does the "TR" suffix mean in JAN1N4124D-1/TR?
The "TR" suffix in JAN1N4124D-1/TR indicates tape-and-reel packaging per EIA-296 standard, as stated in the Mechanical and Packaging section on page 2 of the datasheet. This format supports automated pick-and-place assembly. The base part JAN1N4124D-1 is available in bulk or ammo pack; adding "TR" confirms reel packaging - critical for high-volume manufacturing planning and SMT line compatibility.
JAN1N4124D-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:
- ±1%
- 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)
JAN1N4124D-1/TR FAQ
1.How can I place an order for JAN1N4124D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4124D-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 JAN1N4124D-1/TR reliable?
The price and inventory of JAN1N4124D-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 JAN1N4124D-1/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4124D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N4124D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N4124D-1/TR?
JAN1N4124D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4124D-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 JAN1N4124D-1/TR?
For technical support, including JAN1N4124D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4124D-1/TR requirements.
6.How does Aetrix verify that JAN1N4124D-1/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4124D-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 JAN1N4124D-1/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4124D-1/TR?
All JAN1N4124D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4124D-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 JAN1N4124D-1/TR part is unused and in its original packaging.
Return procedure for JAN1N4124D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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