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Microchip Technology JANTX1N4134-1
- Part No.:
- JANTX1N4134-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANTX1N4134-1.pdf
- Description:
- DIODE ZENER 91V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,039
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Product details
Overview
JANTX1N4134-1 from Microsemi is a 500 mW, 91 V, ±5% tolerance metallurgically bonded glass Zener diode in DO-35 (DO-204AH) axial-leaded package, qualified to MIL-PRF-19500/435 JANTX level for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JANTX1N4134-1 datasheet, JANTX1N4134-1 pinout, JANTX1N4134-1 application, or JANTX1N4134-1 equivalent, key selection criteria include its 91 V nominal Zener voltage at 250 mA test current, 1200 Ω maximum dynamic impedance, 40 µA maximum reverse leakage at 73 V, 4.2 %/°C temperature coefficient, and hermetically sealed DO-35 package rated for -65 °C to +175 °C operation.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with Zener voltage stabilized by metallurgical bonding to minimize parameter drift under thermal and radiation stress. Its 91 V nominal regulation point targets intermediate bus voltage references in avionics DC-DC converters and high-voltage sensor biasing circuits.
The diode exhibits low noise density (1 µV/√Hz typical at lower voltages), minimal capacitance (<1.5 pF per Figure 3), and inherent radiation hardness per Microsemi MicroNote 050 - characteristics critical for space-grade analog signal conditioning and mission-critical power monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 91 V at 250 mA test current - defines stable reference point for high-voltage feedback loops |
| Zener Tolerance | ±5% - ensures predictable regulation window across military temperature range |
| Max Dynamic Impedance | 1200 Ω at 250 mA - limits output voltage variation under load current changes |
| Max Reverse Leakage | 40 µA at 73 V - guarantees low standby power loss in always-on reference circuits |
| Temp Coefficient αVZ | +0.100 %/°C - enables predictable voltage drift compensation in wide-temperature designs |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - supports sustained operation in conduction-cooled enclosures |
| Junction Temp Range | -65 °C to +175 °C - validated for extreme-environment deployment without derating penalties |
Pinout & Package
Hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with cathode indicated by band; operated with banded end positive for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return path; establishes 0 V reference for regulation |
| Cathode | Zener voltage output node | Delivers regulated 91 V output when reverse-biased; must be connected to unregulated input via current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANTX qualification | Validated reliability for aerospace and defense programs requiring traceable lot data and extended lifetime testing |
| Metallurgical bond construction | Reduces long-term parameter shift under thermal cycling and mechanical shock vs. epoxy-bonded alternatives |
| Low noise density (1 µV/√Hz) | Enables use in precision analog front-ends where reference stability directly impacts ADC accuracy |
| Hermetic glass sealing | Prevents moisture ingress and corrosion in humid or salt-laden environments without conformal coating |
| Radiation hardness | Meets TID requirements for low-earth orbit missions per Microsemi MicroNote 050 characterization |
Applications
| Aerospace Power Monitoring | Defense Radar Bias Supply |
|---|---|
Use Scenario: Real-time monitoring of 100 V DC bus in satellite power distribution unit using resistive divider into ADC. IC Role / Device Role / Timing Role: High-stability 91 V Zener reference sets upper threshold for overvoltage detection circuit. Use Value: ±5% tolerance and +0.100 %/°C TC ensure trip point remains within 3.5 V margin across -55 °C to +125 °C operational range. | Use Scenario: Providing stable bias voltage to GaN RF power amplifier stages in airborne radar transmitters. IC Role / Device Role / Timing Role: Shunt regulator maintains constant 91 V supply despite input ripple from pulsed magnetron drivers. Use Value: 1200 Ω dynamic impedance limits output deviation to <1.1 V under 10 mA load transients, preserving amplifier linearity. |
| Avionics Sensor Excitation | Tactical Radio Voltage Reference |
Use Scenario: Exciting strain gauge bridges in flight control surface position sensors operating at ambient -65 °C to +175 °C. IC Role / Device Role / Timing Role: Precision voltage source delivering regulated excitation to bridge arms independent of supply fluctuations. Use Value: Hermetic DO-35 package and metallurgical bond ensure no parameter drift after 1000 thermal cycles between extremes. | Use Scenario: Generating local 91 V reference for analog-to-digital conversion of battery voltage in handheld encrypted radios. IC Role / Device Role / Timing Role: Low-noise Zener reference minimizes quantization error in 12-bit SAR ADC front-end. Use Value: 1 µV/√Hz noise density contributes <0.002 LSB RMS noise, preserving effective resolution under battery-powered conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4134US | Same 91 V Zener voltage but in DO-213AA surface-mount package; 1% tolerance option available | Requires PCB rework for SMT assembly; lacks JANTX qualification and radiation hardness data | Select when automated assembly and space-constrained layouts outweigh military qualification needs |
| JANTXV1N4134-1 | Identical electrical specs but qualified to higher JANTXV reliability level with enhanced screening and tighter parametric limits | Approved for Class H (125 °C ambient) and Class K (radiation-hardened) applications per MIL-PRF-19500/435 | Select when mission-critical systems require extended burn-in, radiation testing, and lot traceability beyond JANTX |
Compared with JANTX1N4134-1, 1N4134US offers SMT compatibility but forfeits military qualification and radiation assurance, while JANTXV1N4134-1 delivers superior reliability validation at higher cost and longer lead time - making JANTX1N4134-1 the optimal balance for Class B avionics and non-radiation-intensive defense platforms.
Availability
JANTX1N4134-1 is available at Aetrix Electronics and suitable for aerospace power monitoring, defense radar bias supply, and avionics sensor excitation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JANTX1N4134-1 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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The JANTX1N4134-1 belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for voltage regulation in harsh-environment electronic systems where long-term stability and radiation tolerance are mandatory.
FAQ
What is the Zener voltage tolerance of JANTX1N4134-1?
JANTX1N4134-1 has a nominal Zener voltage of 91 V with a ±5% tolerance, meaning its actual regulation voltage falls between 86.45 V and 95.55 V when measured at 250 mA test current and 25 °C. This tolerance is standard for the JAN/JANTX series and is verified per MIL-PRF-19500/435 screening requirements.
Does JANTX1N4134-1 require external current limiting?
Yes, JANTX1N4134-1 requires an external series current-limiting resistor to establish the 250 mA Zener test current and prevent thermal runaway. The resistor value is calculated as (VIN – 91 V) / 0.25 A, where VIN is the unregulated input voltage. Without this resistor, JANTX1N4134-1 cannot sustain stable regulation or meet its 500 mW power rating.
What is the maximum junction temperature rating for JANTX1N4134-1?
JANTX1N4134-1 is rated for a junction and storage temperature range of -65 °C to +175 °C, as specified in the Microsemi T4-LDS-0245-2 datasheet. This full military-grade temperature range is validated through MIL-PRF-19500/435 qualification testing and applies to all JANTX-level devices in the 1N4099–1N4135 series.
Is JANTX1N4134-1 RoHS compliant?
No, JANTX1N4134-1 is not RoHS compliant. Per the Microsemi datasheet, RoHS-compliant versions (e.g., with "e3" suffix) are available only for commercial-grade parts; JANTX-level devices retain tin-lead plating to meet MIL-STD-750 solderability requirements and are exempt from RoHS restrictions under defense procurement regulations.
How does the temperature coefficient affect JANTX1N4134-1 performance?
JANTX1N4134-1 has a temperature coefficient of +0.100 %/°C, meaning its Zener voltage increases by approximately 91 mV per degree Celsius rise in junction temperature. At +125 °C, this results in a +9.1 V shift from the 25 °C nominal value - a critical factor when designing overvoltage protection circuits that must remain functional across the full -65 °C to +175 °C range.
JANTX1N4134-1 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):
- 91 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1200 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 69.2 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)
JANTX1N4134-1 FAQ
1.How can I place an order for JANTX1N4134-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N4134-1 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 JANTX1N4134-1 reliable?
The price and inventory of JANTX1N4134-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N4134-1 is usually 5 days.
3.What payment methods are accepted for JANTX1N4134-1?
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JANTX1N4134-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N4134-1 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 JANTX1N4134-1?
For technical support, including JANTX1N4134-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N4134-1 requirements.
6.How does Aetrix verify that JANTX1N4134-1 is sourced from the original manufacturer or authorized distributors?
All JANTX1N4134-1 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 JANTX1N4134-1 meets industry standards.
7.What is the process for return or replacement of JANTX1N4134-1?
All JANTX1N4134-1 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N4134-1, 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 JANTX1N4134-1 part is unused and in its original packaging.
Return procedure for JANTX1N4134-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N4134-1 Tags
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