Microchip Technology JANS1N4134D-1/TR
- Part No.:
- JANS1N4134D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4134D-1/TR.pdf
- Description:
- DIODE ZENER 91V 500MW DO204AH
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
JANS1N4134D-1/TR from Microsemi is a 500 mW, 91 V, 1% tolerance metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It delivers stable voltage regulation at 250 mA test current with 1200 Ω dynamic impedance, low noise density (1 µV/√Hz), and operates across –65 °C to +175 °C junction temperature.
For engineers reviewing the JANS1N4134D-1/TR datasheet, JANS1N4134D-1/TR pinout, JANS1N4134D-1/TR application, or JANS1N4134D-1/TR equivalent, key selection criteria include Zener voltage tolerance (1%), radiation hardness, hermetic DO-35 packaging, MIL-qualified reliability level, and thermal derating behavior above 50 °C.
Technical Context
This device functions as a precision shunt voltage regulator in high-stability analog references and power supply feedback paths. Its metallurgical bond construction ensures long-term parameter stability under thermal cycling and radiation exposure, while its 1% voltage tolerance and +0.100 %/°C temperature coefficient support tight regulation in mission-critical bias networks.
The JANS1N4134D-1/TR exhibits low capacitance (<1 pF typical at 91 V) and minimal noise-critical for low-phase-noise oscillator references and precision instrumentation front-ends. Its 40 µV/√Hz max noise density applies only to ≥6.8 V parts; at 91 V, measured noise is 1 µV/√Hz per specification table.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 91 V ±1% at 250 mA - enables precise 91 V reference generation with minimal calibration drift |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - defines maximum continuous bias current in thermal-limited designs |
| Dynamic Impedance ZZT | 1200 Ω at 250 mA - determines regulation error under load current variation |
| Noise Density | 1 µV/√Hz at 25 °C - supports ultra-low-noise analog references and RF biasing |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies voltage drift over temperature; requires compensation in wide-temp-range systems |
| Reverse Leakage IR | 10 nA max at 72.8 V - ensures negligible current draw in high-impedance reference nodes |
| Junction Temp Range | –65 °C to +175 °C - validates operation in extreme environmental conditions including space and engine bays |
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 length 25.4–38.1 mm, body diameter 1.42–2.29 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; carries full Zener current when regulating |
| Cathode | Regulated output node | Banded end; supplies stable 91 V to load; must be decoupled for noise-sensitive circuits |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for Class S (space-level) reliability with screening per MIL-STD-750 and MIL-STD-883 |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and neutron irradiation |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in precision reference circuits |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter shift over 20+ year service life in sealed enclosures |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) >100 krad(Si) per MicroNote 050 |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 91 V bias to photomultiplier tube (PMT) anode chains in airborne LIDAR receivers. IC Role / Device Role / Timing Role: Shunt voltage reference establishing high-voltage gain stage operating point. Use Value: 1% tolerance and radiation hardness ensure consistent PMT gain calibration across flight hours and orbital radiation exposure. | Use Scenario: Regulating detector bias voltage in star tracker focal plane assemblies aboard geosynchronous satellites. IC Role / Device Role / Timing Role: Precision Zener reference in closed-loop HV control circuitry. Use Value: Hermetic DO-35 packaging and –65 °C to +175 °C operation maintain regulation integrity during eclipse-to-sun thermal cycling. |
| Nuclear Instrumentation | High-Voltage Test Equipment |
Use Scenario: Generating calibrated 91 V reference for gamma spectrometer pulse-height analyzers in reactor monitoring systems. IC Role / Device Role / Timing Role: Primary voltage standard in analog signal conditioning path. Use Value: Low 1 µV/√Hz noise density preserves energy resolution of scintillation pulses without added filtering. | Use Scenario: Stabilizing programmable HV supply outputs in automated insulation resistance testers. IC Role / Device Role / Timing Role: Feedback element in series-pass regulator topology. Use Value: 500 mW power rating and 1200 Ω dynamic impedance enable stable regulation under variable load currents up to 5.5 mA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4134US-1 | Same 91 V, 1% spec but in DO-213AA surface-mount package; no axial leads | Requires PCB rework for SMT assembly; unsuitable for through-hole prototyping or wire-wrap | Select when board space is constrained and automated placement is available |
| JANTXV1N4134D-1 | Identical electrical specs and DO-35 package, but qualified only to JANTXV (not JANS) level | Lacks Class S screening; not approved for flight hardware in NASA or DoD space programs | Select for high-reliability ground-test equipment where full JANS screening is unnecessary |
Compared with JANS1N4134D-1/TR, the 1N4134US-1 offers identical regulation performance in a smaller footprint but sacrifices mechanical robustness and hand-solderability, while the JANTXV1N4134D-1 reduces cost and lead time but omits radiation-hardness validation and extended screening required for spaceflight use.
Availability
JANS1N4134D-1/TR is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, nuclear instrumentation, and high-voltage test equipment requiring stable component supply across extended temperature ranges and long service lifetimes.
Supply support for JANS1N4134D-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, radiation-hardened, and aerospace-grade components.
The JANS1N4134D-1/TR belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, designed specifically for voltage reference and regulation in defense electronics, space systems, and nuclear instrumentation where parameter stability under stress is non-negotiable.
FAQ
What is the Zener voltage tolerance of JANS1N4134D-1/TR?
JANS1N4134D-1/TR has a nominal Zener voltage of 91 V with a tolerance of ±1%, as indicated by the "D" suffix in the part number per Microsemi's nomenclature. This tolerance is guaranteed at 25 °C with 250 mA test current and applies across the full qualified temperature range when used within derated power limits.
Is JANS1N4134D-1/TR radiation hardened?
Yes, JANS1N4134D-1/TR is inherently radiation hard per Microsemi MicroNote 050, with documented tolerance to total ionizing dose (TID) exceeding 100 krad(Si). Its metallurgically bonded structure and hermetic DO-35 package contribute to this hardness, making it suitable for satellite and nuclear environments.
What does the "TR" suffix mean in JANS1N4134D-1/TR?
The "TR" suffix in JANS1N4134D-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 device remains identical to the bulk version in all functional aspects.
Can JANS1N4134D-1/TR replace commercial-grade 1N4134D-1 in existing designs?
JANS1N4134D-1/TR shares identical electrical parameters and DO-35 mechanical form factor with commercial 1N4134D-1, but adds JANS-level screening, extended temperature validation, and radiation hardness. It can be used as a drop-in replacement where enhanced reliability is required, though qualification testing may be needed for safety-critical certifications.
What is the maximum reverse leakage current for JANS1N4134D-1/TR?
JANS1N4134D-1/TR has a maximum reverse leakage current (IR) of 10 nA at 72.8 V (80% of VZ), as specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This ultra-low leakage supports high-impedance reference nodes in precision analog circuits without introducing measurable error.
JANS1N4134D-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):
- 91 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.2 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 (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4134D-1/TR FAQ
1.How can I place an order for JANS1N4134D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4134D-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 JANS1N4134D-1/TR reliable?
The price and inventory of JANS1N4134D-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 JANS1N4134D-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4134D-1/TR?
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Once your JANS1N4134D-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 JANS1N4134D-1/TR?
For technical support, including JANS1N4134D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4134D-1/TR requirements.
6.How does Aetrix verify that JANS1N4134D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4134D-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 JANS1N4134D-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4134D-1/TR?
All JANS1N4134D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4134D-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 JANS1N4134D-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4134D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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