My Inquiry
My Account
Microchip Technology JANS1N4124C-1/TR
- Part No.:
- JANS1N4124C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4124C-1/TR.pdf
- Description:
- DIODE ZENER 43V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,455
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANS1N4124C-1/TR from Microsemi is a 43 V, 2% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense voltage regulation. It delivers 32.7 mA maximum Zener current at 250 mA test current, with dynamic impedance of 250 Ω and temperature coefficient of +0.095 %/°C.
For engineers reviewing the JANS1N4124C-1/TR datasheet, JANS1N4124C-1/TR pinout, JANS1N4124C-1/TR application, or JANS1N4124C-1/TR equivalent, key selection criteria include its JANS-level radiation hardness, 2% Zener voltage tolerance, low noise density (≤1 μV/√Hz below 6.8 V), and hermetic DO-35 packaging suitable for extreme-temperature military power supply references.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with cathode indicated by band and intended for banded-end-positive configuration. Its metallurgical bond ensures stable junction characteristics across -65 °C to +175 °C operating range and supports non-ESD-sensitive handling per MIL-STD-750 Method 1020.
The JANS1N4124C-1/TR exhibits a linear power derating curve from 500 mW at 25 °C ambient to zero at 175 °C, with thermal resistance junction-to-lead of 250 °C/W at 10 mm lead length. Its Zener impedance (ZZT = 250 Ω) is measured at 10% rms AC modulation superimposed on IZT = 250 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 43.0 V ±2% at IZT = 250 mA - defines stable regulation point for reference design |
| Power Dissipation | 500 mW @ TL = 25 °C - sets maximum continuous DC power under lead-temperature condition |
| Zener Impedance ZZT | 250 Ω @ IZT = 250 mA - determines output voltage stability under load variation |
| Max Reverse Current IR | 0.01 µA @ VR = 32.7 V - ensures minimal leakage in off-state regulation |
| Temp Coefficient αVZ | +0.095 %/°C - quantifies drift magnitude over temperature for precision references |
| Noise Density ND | ≤1 µV/√Hz - enables low-noise analog references in sensitive instrumentation |
| Junction Temp Range | -65 °C to +175 °C - supports operation in extended environmental conditions |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with tin-lead or RoHS-compliant matte-tin plating; cathode identified by color band; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; carries full reverse current when regulating |
| Cathode (banded end) | Zener regulation terminal | Connected to higher-potential node; establishes regulated voltage referenced to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated reliability for spaceflight, missile guidance, and nuclear-hardened systems |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| Hermetic glass DO-35 package | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments |
| 2% Zener voltage tolerance | Reduces need for post-assembly trimming in high-accuracy voltage reference circuits |
| Radiation hardness | Inherently resistant to total ionizing dose (TID) per Microsemi MicroNote 050 |
Applications
| Avionics Power Reference | Missile Guidance Sensor Bias |
|---|---|
Use Scenario: Regulating reference voltage for ADCs and DACs in flight control computers operating across -55 °C to +125 °C. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 43 V bias for analog front-end signal conditioning. Use Value: JANS qualification and -65 °C to +175 °C junction rating ensure uninterrupted operation during rapid thermal transients. | Use Scenario: Supplying precision bias to infrared seeker detector arrays in tactical missiles. IC Role / Device Role / Timing Role: Low-noise Zener reference (≤1 µV/√Hz) minimizing signal corruption in high-gain sensor amplifiers. Use Value: Metallurgical bond and hermetic seal prevent parameter shift during 20,000 g launch acceleration and vacuum exposure. |
| Nuclear Command & Control PSU | Satellite Onboard Computer Reset |
Use Scenario: Generating reset threshold voltage in hardened power supplies for command-and-control systems. IC Role / Device Role / Timing Role: Precision shunt regulator defining 43 V trip point for brown-out detection circuitry. Use Value: +0.095 %/°C tempco and radiation hardness enable reliable reset behavior after 100 krad(Si) TID exposure. | Use Scenario: Providing regulated voltage for watchdog timer ICs in LEO satellite onboard computers. IC Role / Device Role / Timing Role: Stable voltage reference ensuring deterministic reset timing despite orbital thermal cycling. Use Value: DO-35 package compatibility with through-hole reflow profiles simplifies integration into radiation-tested PCB assemblies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4124C-1 | JANTXV qualification (lower screening than JANS); same electrical specs and DO-35 package | Approved for high-reliability ground systems but not spaceflight or nuclear environments | Select when full JANS screening is unnecessary and cost reduction is prioritized |
| 1N4124C-1/TR | Commercial-grade version; RoHS-compliant e3 finish; no MIL-qualified screening | Suitable only for non-mission-critical industrial or test equipment | Choose for prototyping or commercial production where radiation hardness and extended temp range are not required |
Compared with JANTXV1N4124C-1 and 1N4124C-1/TR, the JANS1N4124C-1/TR provides verified survivability under 100 krad(Si) TID, guaranteed -65 °C startup, and full lot traceability - making it the sole option for flight-critical avionics voltage references.
Availability
JANS1N4124C-1/TR is available at Aetrix Electronics and suitable for avionics power references, missile guidance sensor bias, and nuclear command & control power supply designs requiring stable component supply under extended temperature and radiation exposure.
Supply support for JANS1N4124C-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 JANS1N4124C-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for precision voltage regulation in mission-critical systems exposed to extreme temperature, radiation, and mechanical stress.
FAQ
What is the Zener voltage tolerance of JANS1N4124C-1/TR?
The JANS1N4124C-1/TR has a nominal Zener voltage of 43.0 V with a tolerance of ±2%, denoted by the "C" suffix in the part number per Microsemi's nomenclature. This tolerance is guaranteed under standard test conditions at 25 °C and applies across the full qualified temperature range when used within derated power limits.
Is JANS1N4124C-1/TR compatible with lead-free soldering processes?
Yes, JANS1N4124C-1/TR supports lead-free assembly with a maximum solder temperature of 260 °C for 10 seconds, as specified in the Microsemi datasheet. The device uses annealed matte-tin plating compliant with MIL-STD-750 Method 2026, ensuring reliable wetting and intermetallic formation during Pb-free reflow.
What does the "TR" suffix indicate in JANS1N4124C-1/TR?
The "TR" suffix in JANS1N4124C-1/TR indicates tape-and-reel packaging per EIA-296 standard, enabling automated pick-and-place assembly. This format is standard for volume orders and does not affect electrical or reliability specifications - the underlying JANS1N4124C-1 die and DO-35 construction remain unchanged.
How is the temperature coefficient of JANS1N4124C-1/TR applied in circuit design?
The JANS1N4124C-1/TR has a temperature coefficient of +0.095 %/°C, meaning its Zener voltage increases by approximately 40.85 mV per °C rise above 25 °C. Designers must account for this drift in high-accuracy references by either compensating with complementary components or limiting operating temperature excursions.
Does JANS1N4124C-1/TR require heatsinking in typical applications?
No external heatsink is required for JANS1N4124C-1/TR at ambient temperatures ≤50 °C and power dissipation ≤500 mW, due to its DO-35 package thermal resistance of 250 °C/W junction-to-lead. However, derating begins linearly above 50 °C lead temperature, reaching zero dissipation at 175 °C - board layout must ensure adequate copper area and lead length per datasheet mounting guidelines.
JANS1N4124C-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:
- ±2%
- Power - Max:
- 500 mW
- 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 (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4124C-1/TR FAQ
1.How can I place an order for JANS1N4124C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4124C-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 JANS1N4124C-1/TR reliable?
The price and inventory of JANS1N4124C-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 JANS1N4124C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4124C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4124C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4124C-1/TR?
JANS1N4124C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4124C-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 JANS1N4124C-1/TR?
For technical support, including JANS1N4124C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4124C-1/TR requirements.
6.How does Aetrix verify that JANS1N4124C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4124C-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 JANS1N4124C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4124C-1/TR?
All JANS1N4124C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4124C-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 JANS1N4124C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4124C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N4124C-1/TR Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
