Microchip Technology JAN1N4134-1
- Part No.:
- JAN1N4134-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4134-1.pdf
- Description:
- DIODE ZENER 91V DO204AH
- Quantity:
- Payment:

- Shipping:

Inventory:6,900
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Product details
Overview
JAN1N4134-1 from Microsemi is a 500 mW, 91 V metallurgically bonded glass Zener diode in DO-35 package, qualified to JAN level per MIL-PRF-19500/435. It delivers ±5% Zener voltage tolerance, 1200 Ω dynamic impedance at 250 mA test current, and 40 µV/√Hz noise density - used for precision voltage regulation in aerospace power conditioning and radiation-hardened analog references.
For engineers reviewing the JAN1N4134-1 datasheet, JAN1N4134-1 pinout, JAN1N4134-1 application, or JAN1N4134-1 equivalent, key selection criteria include Zener voltage stability over temperature (αVZ = +0.100 %/°C), low leakage (IR ≤ 0.01 µA @ 73 V), hermetic DO-35 packaging, and JANS-level qualification readiness.
Technical Context
This device operates as a reverse-biased voltage reference with a sharp breakdown knee at 91 V, stabilized by internal metallurgical bonding to minimize parameter drift. Its thermal resistance junction-to-lead is 250 °C/W at 10 mm lead length, enabling stable regulation under transient load conditions in high-reliability environments.
The diode exhibits minimal capacitance (typ. <1.5 pF at 0 V) and inherent radiation hardness per Microsemi MicroNote 050. Noise density is specified at 40 µV/√Hz - consistent with higher-voltage Zeners in the 1N41xx-1 series - supporting low-noise analog supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 91 V ±5% at IZT = 250 mA - defines precise regulation point for high-voltage reference circuits |
| Power Dissipation | 500 mW at TL = 25 °C, linearly derated to zero at 175 °C - sets maximum continuous thermal load on PCB traces |
| Dynamic Impedance ZZT | 1200 Ω at IZT = 250 mA - determines output voltage variation under load current changes |
| Reverse Leakage IR | ≤0.01 µA at VR = 73 V - ensures minimal quiescent current in standby regulation paths |
| Temp. Coefficient αVZ | +0.100 %/°C - quantifies voltage drift across -65 to +175 °C operating range |
| Noise Density ND | 40 µV/√Hz at IZT = 250 mA - specifies broadband RMS noise contribution in precision analog supplies |
| Junction Temp. Range | -65 to +175 °C - enables operation in extended military and space-grade thermal environments |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by band - banded end must be held positive relative to anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Connected to system ground or lowest potential node in shunt regulator topology |
| Cathode | Zener breakdown terminal / regulation output | Connected to unregulated input; delivers stable 91 V to load when reverse biased |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| MIL-PRF-19500/435 qualification | Validated reliability for JAN-level screening including burn-in, temperature cycling, and life testing |
| Hermetic glass encapsulation | Prevents moisture ingress and parameter shift in high-humidity or vacuum environments |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 - suitable for space electronics |
| Low capacitance | Typical <1.5 pF at 0 V - preserves high-frequency signal integrity in RF bias networks |
Applications
| Aerospace Power Conditioning | Radiation-Hardened Reference |
|---|---|
Use Scenario: Regulating auxiliary 91 V bus in satellite power distribution units exposed to thermal cycling and radiation. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable voltage setpoint for DC-DC converter feedback loops. Use Value: Maintains ±0.5% output accuracy over -55 to +125 °C due to +0.100 %/°C αVZ and hermetic DO-35 sealing. | Use Scenario: Precision voltage reference in onboard telemetry analog front-ends operating in low-Earth orbit. IC Role / Device Role / Timing Role: Radiation-tolerant Zener element establishing calibration baseline for ADCs and DACs. Use Value: Delivers stable 91 V reference with <0.01 µA leakage at 73 V, minimizing current draw in battery-limited systems. |
| High-Voltage Test Equipment | Military Avionics Bias Supply |
Use Scenario: Calibration standard in portable high-voltage multimeters requiring traceable 91 V reference points. IC Role / Device Role / Timing Role: Primary Zener reference in self-contained test instrument voltage divider networks. Use Value: Achieves ±5% initial tolerance and <1200 Ω dynamic impedance - enabling sub-0.1% measurement repeatability. | Use Scenario: Overvoltage clamp and reference in radar transmitter power supply monitoring circuits. IC Role / Device Role / Timing Role: Fail-safe Zener clamping element protecting analog comparators from transients above 91 V. Use Value: Survives 175 °C junction temperature and meets MIL-STD-750 ESD immunity (method 1020) without external protection. |
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 and DO-35 package, but commercial-grade (non-mil-qualified); RoHS-compliant matte-tin plating | Lacks JAN-level screening and radiation hardness documentation; not approved for flight-critical use | Select when cost-sensitive prototyping or non-mission-critical industrial regulation is required |
| JANTXV1N4134 | Identical electrical specs and DO-35 package, but qualified to JANTXV level with enhanced screening (e.g., 100% lot acceptance testing) | Approved for higher-reliability avionics subsystems where JAN is insufficient per system safety requirements | Select when design requires extended burn-in, radiation lot acceptance testing, or tighter parametric limits |
Compared with JAN1N4134-1, 1N4134US offers lower cost and RoHS compliance but no military qualification, while JANTXV1N4134 provides stricter screening and broader environmental validation - making it suitable for safety-critical platforms where failure modes demand deeper characterization.
Availability
JAN1N4134-1 is available at Aetrix Electronics and suitable for aerospace power conditioning, radiation-hardened reference design, and high-voltage test equipment requiring stable component supply across extended temperature and radiation environments.
Supply support for JAN1N4134-1 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JAN1N4134-1 belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, engineered specifically for voltage regulation in mission-critical systems where long-term stability and radiation tolerance are mandatory.
FAQ
What is the Zener voltage tolerance for JAN1N4134-1?
JAN1N4134-1 has a nominal Zener voltage of 91 V with a ±5% tolerance, measured at 250 mA test current (IZT) under thermal equilibrium at 25 °C. This tolerance reflects the standard JEDEC specification for the 1N41xx-1 series and is verified during JAN-level qualification screening.
Is JAN1N4134-1 suitable for space applications?
Yes, JAN1N4134-1 is inherently radiation-hardened per Microsemi MicroNote 050 and qualified to MIL-PRF-19500/435 up to JAN level. Its hermetic DO-35 package, metallurgical bond construction, and -65 to +175 °C junction temperature range make it suitable for low-Earth orbit missions where TID tolerance and thermal resilience are required.
What is the maximum reverse leakage current for JAN1N4134-1?
The maximum reverse leakage current (IR) for JAN1N4134-1 is 0.01 µA at VR = 73 V (80% of VZ). This ultra-low leakage supports high-impedance bias networks and minimizes power loss in battery-operated or low-quiescent-current systems using JAN1N4134-1 as a reference.
Does JAN1N4134-1 have RoHS compliance?
No, JAN1N4134-1 is not RoHS compliant. RoHS-compliant versions (e.g., 1N4134-1e3) are available only in commercial-grade variants per the nomenclature table; JAN-level parts retain tin-lead plating to meet MIL-STD-750 solderability requirements and are exempt from RoHS restrictions under military procurement rules.
What is the thermal resistance of JAN1N4134-1?
JAN1N4134-1 has a thermal resistance junction-to-lead (RθJL) of 250 °C/W when mounted with 10 mm lead length from body, and junction-to-ambient (RθJA) of 300 °C/W on FR4 board with 4 mm² copper pads. These values define safe power derating curves - full 500 mW dissipation is only valid below 50 °C lead temperature.
JAN1N4134-1 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:
- -
- 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)
JAN1N4134-1 FAQ
1.How can I place an order for JAN1N4134-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4134-1 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 JAN1N4134-1 reliable?
The price and inventory of JAN1N4134-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4134-1 is usually 5 days.
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Once your JAN1N4134-1 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 JAN1N4134-1?
For technical support, including JAN1N4134-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4134-1 requirements.
6.How does Aetrix verify that JAN1N4134-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4134-1 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 JAN1N4134-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4134-1?
All JAN1N4134-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4134-1, 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 JAN1N4134-1 part is unused and in its original packaging.
Return procedure for JAN1N4134-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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