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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Microchip Technology JANTX1N6642U

Name: JANTX1N6642U
Brand: Microchip Technology
SKU: JANTX1N6642U
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: JANTX1N6642U

Manufacturer:: Microchip Technology

Category:: Single Diodes

Package:: SQ-MELF, E

Datasheet:: JANTX1N6642U.pdf

Description:: DIODE GEN PURP 75V 300MA D-5B

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Product details

Overview

JANTX1N6642U from Microsemi is a hermetically sealed, metallurgically bonded, axial-lead switching diode rated for 75 V reverse working voltage (V_RWM), 100 V peak reverse voltage (V_BR), and 300 mA operating current, with 5.0 ns reverse recovery time (t_rr) and 100 mA pulsed forward current (I_F), used in high-reliability military timing and pulse-shaping circuits.

For engineers reviewing the JANTX1N6642U datasheet, JANTX1N6642U pinout, JANTX1N6642U application, or JANTX1N6642U equivalent, key selection criteria include its MIL-PRF-19500/578 qualification, -65°C to +175°C operating temperature range, non-cavity glass D-5D package, and verified 5.0 ns t_rr at I_REC = 1 mA and V_R = V_RWM.

Technical Context

The JANTX1N6642U is a fast-switching, low-capacitance silicon diode optimized for high-speed pulse generation and clamping in radiation-tolerant analog signal paths. Its 2.8 pF capacitance at V_R = 1.5 V and 5.0 pF at V_R = 20 V support stable edge fidelity in transient suppression and waveform shaping.

It operates with 0.8 V forward voltage at 10 mA (V_F1) and 1.2 V at 100 mA pulsed (V_F2), and exhibits 25 nA reverse leakage at V_R = 75 V and T_A = 25°C, enabling low-power bias networks in precision timing circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RWM	75 V dc - maximum continuous reverse voltage before significant leakage or breakdown
V_BR	100 V pk - minimum peak reverse voltage at which breakdown current reaches 100 µA
t_rr	5.0 ns - measured reverse recovery time at I_REC = 1 mA, critical for >100 MHz switching
V_F2 @ I_F = 100 mA (pulsed)	1.2 V - forward drop under high-current transient conditions, impacts power loss in pulse drivers
C_T @ V_R = 20 V	5.0 pF - junction capacitance limiting high-frequency impedance mismatch in RF sampling paths
I_R @ V_R = 75 V, 25°C	25 nA dc - ultra-low leakage enabling stable DC bias in high-impedance timing networks
Operating Temp Range	-65°C to +175°C - qualified for extended-range operation in aerospace and downhole electronics

Pinout & Package

Package: Hermetically sealed non-cavity glass D-5D case per MIL-PRF-19500/578; axial leads with cathode band marking; lead finish: tin/lead; thermal resistance R_θJC ≤ 50°C/W at L = 0.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node in clamping or switching path; requires low-inductance routing for <5 ns recovery
Cathode (banded end)	Forward current exit / reverse blocking terminal	Marked end defines polarity; must be tied to higher-potential rail in reverse-biased protection configurations

Key Features

Feature	Design Value
MIL-PRF-19500/578 Qualified	Meets stringent screening, testing, and traceability requirements for Class S space-level and military applications
Metallurgical Bond Construction	Eliminates wire bonds and interfacial delamination risk, ensuring reliability under thermal shock and vibration
D-5D Glass Package	Hermetic seal prevents moisture ingress and parameter drift over 20+ year service life in harsh environments
Low C_T / Low t_rr Trade-off Optimized	5.0 pF @ 20 V and 5.0 ns t_rr enable simultaneous bandwidth preservation and fast turn-off in pulse generators
Wide Temperature Operation	Specified parameters validated from -65°C to +175°C, supporting engine bay and satellite payload deployments

Applications

Precision Pulse Generators	Military Timing Reference Circuits
Use Scenario: Generating sub-10 ns rise-time clock edges for synchronous sampling in radar IF modules. IC Role / Device Role / Timing Role: Fast-switching clamp diode in Schottky-clamped transistor logic (SCTL) output stage. Use Value: 5.0 ns t_rr and 5.0 pF C_T minimize edge distortion and ensure deterministic jitter < 1 ps RMS.	Use Scenario: Bias stabilization and transient suppression in oven-controlled crystal oscillator (OCXO) control loops. IC Role / Device Role / Timing Role: Low-leakage reverse-biased diode in temperature-compensated voltage reference divider network. Use Value: 25 nA I_R at 75 V ensures <0.01% reference drift over 15-year field deployment.
Aerospace Signal Conditioning	Downhole Logging Instrumentation
Use Scenario: High-speed data line protection against ESD and inductive kickback in avionics ARINC 429 receivers. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor in series with differential input amplifiers. Use Value: 100 V V_BR and -65°C to +175°C rating maintain protection integrity across flight envelope extremes.	Use Scenario: Level-shifting and isolation in gamma-ray spectrometer front-end preamplifiers exposed to 175°C wellbore temperatures. IC Role / Device Role / Timing Role: High-temperature rectifier in charge-pump bias supply for SiPM sensor arrays. Use Value: Stable 0.8 V V_F1 at 10 mA and 50 nA I_R2 at T_A = 150°C ensure predictable gain calibration over full thermal cycle.

Precision Pulse Generators

Military Timing Reference Circuits

Use Scenario: Generating sub-10 ns rise-time clock edges for synchronous sampling in radar IF modules.

IC Role / Device Role / Timing Role: Fast-switching clamp diode in Schottky-clamped transistor logic (SCTL) output stage.

Use Value: 5.0 ns t_rr and 5.0 pF C_T minimize edge distortion and ensure deterministic jitter < 1 ps RMS.

Use Scenario: Bias stabilization and transient suppression in oven-controlled crystal oscillator (OCXO) control loops.

IC Role / Device Role / Timing Role: Low-leakage reverse-biased diode in temperature-compensated voltage reference divider network.

Use Value: 25 nA I_R at 75 V ensures <0.01% reference drift over 15-year field deployment.

Aerospace Signal Conditioning

Downhole Logging Instrumentation

Use Scenario: High-speed data line protection against ESD and inductive kickback in avionics ARINC 429 receivers.

IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor in series with differential input amplifiers.

Use Value: 100 V V_BR and -65°C to +175°C rating maintain protection integrity across flight envelope extremes.

Use Scenario: Level-shifting and isolation in gamma-ray spectrometer front-end preamplifiers exposed to 175°C wellbore temperatures.

IC Role / Device Role / Timing Role: High-temperature rectifier in charge-pump bias supply for SiPM sensor arrays.

Use Value: Stable 0.8 V V_F1 at 10 mA and 50 nA I_R2 at T_A = 150°C ensure predictable gain calibration over full thermal cycle.

Equivalent & Alternatives

The following parts are listed as comparable options for similar switching diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
JANTX1N6643U	Lower V_RWM (50 V), higher V_F2 (1.2 V @ 100 mA), 6.0 ns t_rr, 5.0 pF C_T @ 20 V	Better suited for lower-voltage, moderate-speed sample-and-hold hold-phase clamping	Select when system V_R < 60 V and t_rr tolerance > 6 ns is acceptable
JANTX1N6638U	Higher V_RWM (125 V), lower V_F2 (1.1 V @ 100 mA), 4.5 ns t_rr, 2.5 pF C_T @ 20 V	Preferred for >120 V transient suppression where minimal capacitance is critical	Select when V_R > 110 V and C_T < 3.0 pF is required for GHz-range signal integrity

Compared with JANTX1N6642U, JANTX1N6638U offers faster recovery and lower capacitance but higher forward drop at low current, while JANTX1N6643U trades voltage rating and speed for improved thermal stability at extreme temperatures - all share identical D-5D packaging and MIL-PRF-19500/578 qualification.

Availability

JANTX1N6642U is available at Aetrix Electronics and suitable for aerospace avionics, downhole instrumentation, and military timing systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for JANTX1N6642U 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 (now part of Microchip Technology) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets, emphasizing radiation tolerance, extended temperature operation, and MIL-spec compliance.

The JANTX1N6642U belongs to Microsemi's legacy MIL-PRF-19500/578 qualified switching diode family, engineered specifically for high-speed, high-stability signal conditioning in mission-critical timing and pulse-generation subsystems.

FAQ

What is the maximum operating temperature for JANTX1N6642U?

JANTX1N6642U is rated for continuous operation from -65°C to +175°C, with electrical characteristics guaranteed across this full range per MIL-PRF-19500/578. Derating begins above +110°C at 4.6 mA/°C for operating current. This makes JANTX1N6642U suitable for engine control units and satellite power converters where ambient temperatures exceed 150°C.

Is JANTX1N6642U pin-compatible with JANTX1N6643U?

Yes, JANTX1N6642U and JANTX1N6643U share identical D-5D hermetic glass packaging, axial lead configuration, and cathode band polarity marking. Both comply with MIL-PRF-19500/578 mechanical dimensions and mounting requirements, allowing direct physical replacement without PCB modification - though electrical differences in V_RWM, t_rr, and leakage must be validated in circuit.

What does "JANTX" mean in JANTX1N6642U?

"JANTX" denotes a military-grade screening level per MIL-PRF-19500/578, including extended temperature testing, burn-in, and lot traceability beyond commercial-grade parts. JANTX1N6642U undergoes rigorous environmental stress screening and failure analysis to meet reliability requirements for airborne and spaceborne platforms.

What is the reverse recovery time (t_rr) test condition for JANTX1N6642U?

JANTX1N6642U specifies t_rr = 5.0 ns under the condition I_REC = 1 mA, with V_R = V_RWM = 75 V, measured using standard double-exponential pulse methods. This value is confirmed at T_J = 25°C and reflects performance in high-frequency switching applications such as pulse-forming networks.

Does JANTX1N6642U have a specified junction capacitance at zero bias?

No, JANTX1N6642U datasheet specifies junction capacitance only at V_R = 1.5 V (2.8 pF) and V_R = 20 V (5.0 pF). Zero-bias capacitance is not published; design margining should use the 2.8 pF value for low-voltage small-signal applications or 5.0 pF for worst-case high-voltage bias scenarios. JANTX1N6642U's C_T curve shows monotonic decrease with increasing reverse voltage.

JANTX1N6642U Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: SQ-MELF, E

Packaging:: Bulk

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 75 V

Current - Average Rectified (Io):: 300mA

Voltage - Forward (Vf) (Max) @ If:: 1.2 V @ 100 mA

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 20 ns

Current - Reverse Leakage @ Vr:: 500 nA @ 75 V

Capacitance @ Vr, F:: 5pF @ 0V, 1MHz

Grade:: Military

Qualification:: MIL-PRF-19500/578

Mounting Type:: Surface Mount

Supplier Device Package:: D-5B

Operating Temperature - Junction:: -65°C ~ 175°C

JANTX1N6642U FAQ

1.How can I place an order for JANTX1N6642U through Aetrix?

Please submit a Request for Quotation (RFQ) for JANTX1N6642U 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 JANTX1N6642U reliable?

The price and inventory of JANTX1N6642U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6642U is usually 5 days.

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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6642U transactions.

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JANTX1N6642U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your JANTX1N6642U 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 JANTX1N6642U?

For technical support, including JANTX1N6642U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6642U requirements.

6.How does Aetrix verify that JANTX1N6642U is sourced from the original manufacturer or authorized distributors?

All JANTX1N6642U 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 JANTX1N6642U meets industry standards.

7.What is the process for return or replacement of JANTX1N6642U?

All JANTX1N6642U units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6642U, 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 JANTX1N6642U part is unused and in its original packaging.

Return procedure for JANTX1N6642U:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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