My Inquiry
My Account
Microchip Technology JANTX1N4125C-1
- Part No.:
- JANTX1N4125C-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4125C-1.pdf
- Description:
- DIODE ZENER 47V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,796
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANTX1N4125C-1 from Microsemi is a 500 mW, 47 V Zener voltage regulator diode in DO-35 glass axial-leaded package, qualified to JANTX reliability level per MIL-PRF-19500/435, with ±2% Zener voltage tolerance, 250 mA test current, and 250 Ω maximum dynamic impedance at 25 °C - used for precision voltage reference and regulation in military-grade power supplies and analog instrumentation.
For engineers reviewing the JANTX1N4125C-1 datasheet, JANTX1N4125C-1 pinout, JANTX1N4125C-1 application, or JANTX1N4125C-1 equivalent, key selection criteria include Zener voltage accuracy (±2%), low noise density (1 µV/√Hz), radiation-hardened construction, and thermal derating behavior from 500 mW at 25 °C to zero at 175 °C.
Technical Context
This device operates as a reverse-biased Zener regulator with metallurgically bonded junction, enabling stable voltage reference over wide temperature (–65 to +175 °C) and current ranges. Its 47 V nominal Zener voltage is specified at 250 mA test current (IZT), with dynamic impedance of ≤250 Ω measured at 10% ac modulation superimposed on IZT.
Noise performance is characterized at 1 µV/√Hz (typical), verified under 1–3 kHz bandpass filtering at 25 °C ambient. Temperature coefficient is +0.095 %/°C, indicating positive drift with rising temperature - critical for high-stability reference designs requiring compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 47 V ±2% at 250 mA - ensures tight regulation tolerance for reference circuits requiring <±0.94 V deviation. |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - defines safe operating area under thermal stress. |
| Dynamic Impedance (ZZT) | ≤250 Ω at 250 mA - minimizes output voltage variation under load current changes. |
| Noise Density (ND) | 1 µV/√Hz - enables low-noise analog references in precision measurement systems. |
| Temp Coefficient (αVZ) | +0.095 %/°C - quantifies predictable positive voltage drift, allowing accurate thermal compensation. |
| Reverse Leakage (IR) | ≤10 µA at 37.6 V - guarantees minimal parasitic current in high-impedance bias networks. |
| Junction Temp Range | –65 to +175 °C - supports operation in extreme environments including aerospace and downhole electronics. |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package. Cathode indicated by black band; operated with banded end positive for Zener regulation. Approximate weight: 0.2 g. Lead length: 25.4–38.1 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lowest potential point; forms return path for Zener current. |
| Cathode | Regulated output node | Banded terminal; delivers stable 47 V reference when reverse-biased above breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Enables long-term stability and reduced parameter drift under thermal cycling and radiation exposure. |
| MIL-PRF-19500/435 JANTX qualification | Validates reliability for defense/aerospace applications with full lot traceability and screening per military standards. |
| Low noise density (1 µV/√Hz) | Supports high-resolution ADC references and low-phase-noise oscillator biasing without added filtering. |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift in humid or corrosive environments over 20+ year lifetimes. |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for space-qualified systems. |
Applications
| Aerospace Power Conditioning | Military Instrumentation Reference |
|---|---|
Use Scenario: Regulating auxiliary supply rails in satellite telemetry modules exposed to thermal vacuum and radiation. IC Role / Device Role / Timing Role: Zener voltage reference providing stable 47 V bias for op-amp gain-setting networks and ADC reference dividers. Use Value: Maintains ±0.94 V regulation accuracy across –65 to +125 °C while surviving >100 krad(Si) TID exposure. | Use Scenario: Precision voltage reference in handheld field-test equipment for calibrating multimeters and signal generators. IC Role / Device Role / Timing Role: Primary Zener reference element in portable battery-powered calibration sources requiring low drift and low noise. Use Value: Delivers 1 µV/√Hz noise floor and +0.095 %/°C tempco - enabling sub-0.01% absolute accuracy over 8-hour field use. |
| Downhole Oilfield Sensor Biasing | Avionics Analog Signal Conditioning |
Use Scenario: Providing regulated bias for piezoresistive pressure transducers in deep-well drilling tools operating at 175 °C. IC Role / Device Role / Timing Role: High-temperature Zener regulator maintaining excitation voltage for bridge sensors under sustained thermal stress. Use Value: Sustains 47 V regulation with <1% deviation up to 175 °C junction temperature due to linear derating and robust metallurgical bond. | Use Scenario: Stabilizing reference voltages for analog-to-digital conversion in flight control computers. IC Role / Device Role / Timing Role: JANTX-qualified Zener reference ensuring deterministic ADC full-scale accuracy during rapid thermal transients. Use Value: MIL-qualified construction prevents parametric shift during vibration, shock, and thermal cycling per DO-160 Section 22. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4751A | 47 V ±5%, 1 W rating, DO-41 package, non-mil-qualified, higher noise (5 µV/√Hz). | Commercial industrial power supplies where cost and power margin outweigh radiation tolerance and noise. | Select only if JANTX-level screening, hermetic sealing, and sub-µV noise are not required. |
| JAN1N4125C | Identical electrical specs and DO-35 package, but qualified only to JAN level (less stringent screening than JANTX). | Lower-tier defense programs accepting reduced burn-in and environmental testing per MIL-PRF-19500/435. | Use when full JANTX screening is unnecessary but same 47 V ±2% regulation and radiation hardness are needed. |
Compared with 1N4751A and JAN1N4125C, JANTX1N4125C-1 uniquely combines ±2% tolerance, 1 µV/√Hz noise, JANTX-level screening, and hermetic DO-35 packaging - making it irreplaceable for high-reliability analog references where parameter stability under stress is non-negotiable.
Availability
JANTX1N4125C-1 is available at Aetrix Electronics and suitable for aerospace power conditioning, military instrumentation reference, and downhole oilfield sensor biasing requiring stable component supply across extended product lifecycles and obsolescence-sensitive programs.
Supply support for JANTX1N4125C-1 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, radiation-hardened, and aerospace-grade analog and mixed-signal components.
The JANTX1N4125C-1 belongs to Microsemi's legacy MIL-PRF-19500/435-qualified Zener diode family, designed specifically for precision voltage regulation in mission-critical defense, space, and industrial systems demanding long-term parametric stability.
FAQ
What is the Zener voltage tolerance and test current for JANTX1N4125C-1?
JANTX1N4125C-1 has a nominal Zener voltage of 47 V with ±2% tolerance, verified at a Zener test current (IZT) of 250 mA. This tolerance ensures regulation within ±0.94 V under specified conditions, supporting high-accuracy reference designs where tight voltage control is essential. The 250 mA test current reflects the standard operating point used to characterize dynamic impedance and noise performance.
Is JANTX1N4125C-1 suitable for high-temperature environments?
Yes, JANTX1N4125C-1 is rated for junction temperatures from –65 to +175 °C and features linear power derating from 500 mW at 25 °C to zero at 175 °C. Its metallurgically bonded construction and hermetic DO-35 glass package ensure stable 47 V regulation even under sustained thermal stress - validated in downhole and avionics applications exceeding 150 °C ambient.
Does JANTX1N4125C-1 meet MIL-PRF-19500/435 requirements?
Yes, JANTX1N4125C-1 is fully qualified to MIL-PRF-19500/435 at the JANTX reliability level, including rigorous screening for vibration, thermal shock, burn-in, and parameter verification. This qualification confirms its suitability for defense and aerospace programs requiring full traceability, lot acceptance testing, and guaranteed lifetime performance under extreme operational stresses.
What is the noise performance of JANTX1N4125C-1, and how is it measured?
JANTX1N4125C-1 exhibits a typical noise density of 1 µV/√Hz, measured using a 1–3 kHz bandpass filter at 25 °C ambient and 250 mA Zener test current. This low-noise characteristic is intrinsic to its metallurgical bond structure and enables use in precision analog circuits - such as ADC references and low-phase-noise oscillator bias networks - without requiring external filtering.
How does the temperature coefficient affect JANTX1N4125C-1's regulation accuracy?
JANTX1N4125C-1 has a temperature coefficient of +0.095 %/°C, meaning its Zener voltage increases by approximately 44.65 mV per °C rise. This predictable positive drift allows designers to implement passive or active compensation in high-stability reference circuits - especially critical in aerospace and instrumentation applications where ambient temperature may vary by >100 °C.
JANTX1N4125C-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 47 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 250 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 35.8 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)
JANTX1N4125C-1 FAQ
1.How can I place an order for JANTX1N4125C-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4125C-1 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 JANTX1N4125C-1 reliable?
The price and inventory of JANTX1N4125C-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4125C-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4125C-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N4125C-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N4125C-1?
JANTX1N4125C-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4125C-1 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 JANTX1N4125C-1?
For technical support, including JANTX1N4125C-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4125C-1 requirements.
6.How does Aetrix verify that JANTX1N4125C-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4125C-1 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 JANTX1N4125C-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4125C-1?
All JANTX1N4125C-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4125C-1, 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 JANTX1N4125C-1 part is unused and in its original packaging.
Return procedure for JANTX1N4125C-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4125C-1 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…
