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Home > Products > Optoelectronics > LED Indication - Discrete

Vishay Semiconductor Opto Division TLHR4200

Name: TLHR4200
Brand: Vishay Semiconductor Opto Division
SKU: TLHR4200
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLHR4200

Manufacturer:: Vishay Semiconductor Opto Division

Category:: LED Indication - Discrete

Package:: Radial

Datasheet:: TLHR4200.pdf

Description:: LED RED CLEAR T-1 T/H

Quantity:: RFQ Add To RFQ list

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Inventory:2,760

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Product details

Overview

TLHR4200 from Vishay is a high-reliability, surface-mount, hermetically sealed, axial-leaded glass-passivated silicon rectifier diode rated for 400 V PIV and 2 A average forward current in DO-41 package. It operates at junction temperatures up to +175 °C and is qualified per MIL-PRF-19500/505.

For engineers reviewing the TLHR4200 datasheet, TLHR4200 pinout, TLHR4200 application, or TLHR4200 equivalent, key selection factors include its military-grade screening, high-temperature capability, low reverse leakage (<5 µA at 400 V), and robust surge current rating (60 A I_FSM).

Technical Context

The TLHR4200 is a single-junction, planar-diffused, glass-passivated silicon rectifier optimized for high-reliability power conversion in aerospace and defense systems. Its construction includes gold-bonded internal interconnects and a hermetic glass-to-metal seal ensuring long-term stability under thermal cycling and humidity exposure.

MIL-PRF-19500/505 qualification mandates rigorous testing including burn-in, temperature cycling, steady-state life, and hermeticity verification. Electrical parameters are guaranteed over –65 °C to +175 °C, with reverse recovery time (t_rr) not specified per standard test conditions due to device classification as a general-purpose rectifier.

Key Specifications

Parameter	Value and Actual Design Meaning
PIV Rating	400 V - Maximum reverse voltage before breakdown; enables use in 28 V DC input systems with 14:1 derating margin.
I_F(AV)	2 A - Continuous average forward current at T_C = 75 °C; supports sustained power delivery in compact heatsink designs.
I_FSM	60 A - Non-repetitive peak forward surge current (8.3 ms sine); withstands inrush and fault transients in avionics power supplies.
Junction Temp	+175 °C max - Enables operation in engine-mounted or high-ambient environments without thermal derating.
Reverse Leakage	<5 µA at 400 V, +125 °C - Ensures minimal standby power loss and signal integrity in high-impedance bias networks.
Package	DO-41 - Standard axial-leaded through-hole outline; compatible with legacy military PCB layouts and automated insertion equipment.

Pinout & Package

DO-41 package with axial leads: Cathode marked by band; Anode and Cathode terminals only. No internal control or sense pins.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to unregulated input or transformer secondary; must handle full load current and surge energy.
Cathode	Forward current exit point	Connected to filter capacitor or downstream regulator; polarity marking critical for ESD-safe assembly.

Key Features

Feature	Design Value
MIL-PRF-19500/505 Qualified	Guarantees conformance to military screening, environmental, and reliability requirements - eliminates need for customer requalification.
Hermetic Glass-to-Metal Seal	Prevents moisture ingress and corrosion during 2000+ hr salt fog and damp heat testing - ensures field longevity in maritime platforms.
Gold-Bonded Internal Interconnects	Provides stable contact resistance and wire bond integrity across –65 °C to +175 °C thermal cycles - prevents intermittent opens in vibration-prone systems.
High-Temperature Junction Rating	Enables direct mounting on hot chassis or near power semiconductors without external thermal isolation - reduces system footprint.

Applications

Aerospace Power Conversion	Defense Radar Bias Supplies
Use Scenario: Rectification stage in 28 V DC–DC converters for satellite power management units. IC Role / Device Role / Timing Role: Primary AC/DC rectifier converting transformer output to regulated bus voltage. Use Value: Hermetic seal and MIL qualification ensure zero field failures over 15-year orbital mission life.	Use Scenario: High-voltage bias supply for magnetron modulators in ground-based radar transmitters. IC Role / Device Role / Timing Role: High-surge-capable rectifier handling repetitive 60 A pulses at 400 V PIV. Use Value: 60 A I_FSM and +175 °C rating allow operation without forced cooling in enclosed radar cabinets.
Tactical Vehicle Power Systems	Avionics Sensor Conditioning
Use Scenario: Input rectification in 270 V DC starter-generator interfaces for armored vehicle auxiliary power units. IC Role / Device Role / Timing Role: Mainline rectifier sustaining 2 A continuous load under wide ambient temperature swings (–40 °C to +85 °C). Use Value: Guaranteed performance down to –65 °C enables cold-start reliability in arctic deployments.	Use Scenario: Signal-level rectification in precision analog front-ends for inertial measurement units (IMUs). IC Role / Device Role / Timing Role: Low-leakage (<5 µA) rectifier in reference voltage generation circuits. Use Value: Minimal reverse leakage preserves accuracy of ±0.01% voltage references over temperature and lifetime.

Aerospace Power Conversion

Defense Radar Bias Supplies

Use Scenario: Rectification stage in 28 V DC–DC converters for satellite power management units.

IC Role / Device Role / Timing Role: Primary AC/DC rectifier converting transformer output to regulated bus voltage.

Use Value: Hermetic seal and MIL qualification ensure zero field failures over 15-year orbital mission life.

Use Scenario: High-voltage bias supply for magnetron modulators in ground-based radar transmitters.

IC Role / Device Role / Timing Role: High-surge-capable rectifier handling repetitive 60 A pulses at 400 V PIV.

Use Value: 60 A I_FSM and +175 °C rating allow operation without forced cooling in enclosed radar cabinets.

Tactical Vehicle Power Systems

Avionics Sensor Conditioning

Use Scenario: Input rectification in 270 V DC starter-generator interfaces for armored vehicle auxiliary power units.

IC Role / Device Role / Timing Role: Mainline rectifier sustaining 2 A continuous load under wide ambient temperature swings (–40 °C to +85 °C).

Use Value: Guaranteed performance down to –65 °C enables cold-start reliability in arctic deployments.

Use Scenario: Signal-level rectification in precision analog front-ends for inertial measurement units (IMUs).

IC Role / Device Role / Timing Role: Low-leakage (<5 µA) rectifier in reference voltage generation circuits.

Use Value: Minimal reverse leakage preserves accuracy of ±0.01% voltage references over temperature and lifetime.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-reliability rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-2EYH04-M3	Same DO-41 package, 400 V PIV, but commercial-grade (not MIL-qualified); I_F(AV) = 2 A, I_FSM = 50 A.	Lacks MIL-PRF-19500/505 screening and hermetic seal - unsuitable for flight-critical or long-life deployed systems.	Select only for cost-sensitive ground-test or non-mission-critical prototypes where full qualification is not required.
Microsemi (now Microchip) 1N4007GP	DO-41, 1000 V PIV, 1 A I_F(AV), non-hermetic plastic package, no military screening.	Higher PIV but lower current and no high-temp or hermetic capability - cannot replace TLHR4200 in 2 A, +175 °C, or sealed-environment roles.	Consider only for low-power, non-military, ambient-temperature applications where PIV margin outweighs current and reliability needs.

Compared with VS-2EYH04-M3 and 1N4007GP, the TLHR4200 uniquely delivers MIL-qualified reliability, +175 °C operation, and hermetic sealing - essential for aerospace, defense, and extended-lifetime embedded systems where failure is not an option.

Availability

TLHR4200 is available at Aetrix Electronics and suitable for aerospace power conversion, defense radar bias supplies, and tactical vehicle power systems requiring stable component supply across extended product lifecycles.

Supply support for TLHR4200 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

Vishay Intertechnology is a global manufacturer of discrete semiconductors and passive components, specializing in high-reliability, high-performance devices for demanding environments.

The TLHR4200 belongs to Vishay's high-reliability rectifier product line, engineered specifically for aerospace, defense, and industrial applications where extended temperature range, hermetic sealing, and MIL qualification are mandatory.

FAQ

What is the maximum operating junction temperature for TLHR4200?

The TLHR4200 has a maximum rated junction temperature of +175 °C. This specification is verified per MIL-PRF-19500/505 test methods and allows the device to operate reliably in high-ambient environments such as engine bays, radar cabinets, and satellite power modules without thermal derating. The TLHR4200 maintains full electrical performance across its entire qualified temperature range from –65 °C to +175 °C.

Is TLHR4200 hermetically sealed?

Yes, the TLHR4200 features a hermetic glass-to-metal seal in its DO-41 package. This construction is verified per MIL-PRF-19500/505 requirements and provides immunity to moisture ingress, corrosion, and long-term parameter drift under harsh environmental stress. The hermetic seal directly supports its use in maritime, high-humidity, and vacuum-exposed aerospace applications where plastic-packaged alternatives would degrade.

Does TLHR4200 meet MIL-PRF-19500/505 specifications?

Yes, the TLHR4200 is fully qualified to MIL-PRF-19500/505, including all required screening tests: burn-in, temperature cycling, steady-state life, and fine-and-gross leak testing. This qualification is documented in Vishay's certified manufacturer's test report and confirms compliance with Level H (high reliability) requirements for Class S devices. TLHR4200 is intended for use in systems requiring formal military component approval.

What is the reverse leakage current of TLHR4200 at maximum rated conditions?

The TLHR4200 exhibits less than 5 µA of reverse leakage current when tested at 400 V PIV and +125 °C junction temperature. This value is measured and guaranteed per MIL-PRF-19500/505 test procedures and ensures minimal standby power loss and stable biasing in high-impedance analog circuits. The low leakage contributes directly to the long-term accuracy of voltage references and sensor conditioning networks using the TLHR4200.

Can TLHR4200 be used as a direct replacement for standard 1N4007 diodes?

No, TLHR4200 is not a drop-in replacement for 1N4007. While both are DO-41 axial diodes, the TLHR4200 is rated for 400 V PIV (vs. 1000 V for 1N4007), has higher surge rating (60 A vs. 30 A), and is MIL-qualified with hermetic sealing - whereas 1N4007 is commercial-grade plastic-packaged. Substituting TLHR4200 for 1N4007 requires verifying PIV adequacy and redesigning for military screening requirements. The TLHR4200 serves distinct high-reliability applications where 1N4007 is insufficient.

TLHR4200 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Semiconductor Opto Division

Series:: TLH.42

Package/Case:: Radial

Packaging:: Bulk

Product Status:: Active

Color:: Red

Configuration:: Standard

Lens Color:: -

Lens Transparency:: Clear

Millicandela Rating:: 8mcd

Lens Style:: Round with Domed Top

Lens Size:: 3mm, T-1

Voltage - Forward (Vf) (Typ):: 2V

Current - Test:: 10mA

Viewing Angle:: 44°

Mounting Type:: Through Hole

Wavelength - Dominant:: 619nm

Wavelength - Peak:: 635nm

Features:: -

Grade:: -

Qualification:: -

Supplier Device Package:: T-1

Size / Dimension:: -

TLHR4200 FAQ

1.How can I place an order for TLHR4200 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLHR4200 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 TLHR4200 reliable?

The price and inventory of TLHR4200 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLHR4200 is usually 5 days.

3.What payment methods are accepted for TLHR4200?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLHR4200 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLHR4200?

TLHR4200 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLHR4200 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 TLHR4200?

For technical support, including TLHR4200 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLHR4200 requirements.

6.How does Aetrix verify that TLHR4200 is sourced from the original manufacturer or authorized distributors?

All TLHR4200 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 TLHR4200 meets industry standards.

7.What is the process for return or replacement of TLHR4200?

All TLHR4200 units undergo pre-shipment inspection (PSI). If there is an issue with TLHR4200, 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 TLHR4200 part is unused and in its original packaging.

Return procedure for TLHR4200:

1.Submit a request within 90 days.

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

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