Vishay Semiconductor Opto Division TLHG4400-MS12
- Part No.:
- TLHG4400-MS12
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLHG4400-MS12.pdf
- Description:
- LED GREEN DIFFUSED T-1 T/H
- Quantity:
- Payment:

- Shipping:

Inventory:29,579
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Product details
Overview
TLHG4400-MS12 from Vishay Semiconductors is a green light-emitting diode (LED) in a 3 mm tinted diffused plastic package (T-1), delivering 2.5–13 mcd luminous intensity at 10 mA, with dominant wavelength 562–575 nm and forward voltage 2.4–3.0 V at 20 mA. It serves as an on/off indicator or status light in industrial control panels and instrumentation.
For engineers reviewing the TLHG4400-MS12 datasheet, TLHG4400-MS12 pinout, TLHG4400-MS12 application, or TLHG4400-MS12 equivalent, key selection criteria include luminous intensity binning, wavelength grouping for color consistency, viewing angle (±30°), DC/high-peak-current capability, and compatibility with standard 3 mm LED mounting and automated tape-and-reel assembly.
Technical Context
The TLHG4400-MS12 uses GaP-on-GaP epitaxial technology to achieve stable green emission with tight spectral control. Its ±30° half-intensity viewing angle ensures high on-off contrast across wide visual angles, while its 3 mm tinted diffused lens enhances uniform light distribution without hotspots.
Rated for 30 mA DC forward current and 1 A surge (tp ≤ 10 μs), it operates from –40 °C to +100 °C ambient and features 400 K/W junction-to-ambient thermal resistance - enabling reliable use in sealed enclosures and thermally constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 2.5–13 mcd at 10 mA - defines visible brightness level for human-readable status indication under typical panel lighting |
| Dominant wavelength | 562–575 nm - specifies green hue range suitable for color-coded safety/status signaling per IEC 60417 |
| Forward voltage | 2.4–3.0 V at 20 mA - determines series resistor value and power dissipation in constant-current drive circuits |
| Viewing angle | ±30° half-intensity - enables consistent visibility across 60° cone without requiring precise operator alignment |
| Absolute max forward current | 30 mA DC - sets upper limit for continuous operation; exceeds typical 20 mA design target for margin |
| Junction temperature | 100 °C max - constrains thermal design when mounted near heat sources or in high-density layouts |
| Reverse voltage | 6 V - defines minimum reverse-bias protection needed in AC-coupled or bidirectional drive applications |
Pinout & Package
TLHG4400-MS12 is housed in a standard Ø 3 mm (T-1) tinted diffused plastic package with axial leads. The cathode is identified by a flat edge on the lens housing and shorter lead; anode is longer lead. Tape orientation code "MS12" indicates cathode-first feed direction per EIA-481-D.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (longer lead) | Positive terminal | Connected to current source or microcontroller GPIO via current-limiting resistor; polarity must be observed to avoid damage |
| Cathode (shorter lead, flat side) | Ground/negative terminal | Typically tied to system ground or low-side switch; MS12 tape orientation confirms cathode feeds first into pick-and-place equipment |
Key Features
| Feature | Design Value |
|---|---|
| Standard T-1 (Ø 3 mm) package | Ensures drop-in compatibility with legacy 3 mm LED sockets, drill patterns, and automated placement nozzles |
| Luminous intensity binning | Grouped per M/N/P/Q bins - allows matching of brightness across multi-LED arrays for uniform panel appearance |
| Wavelength binning (green) | Categorized into 8 dominant wavelength groups (562–575 nm) - enables color-consistent assemblies without manual sorting |
| Wide viewing angle (±30°) | Delivers >50% relative intensity across 60° cone - eliminates need for secondary optics in front-panel indicators |
| DC and high peak current rated | 30 mA DC / 1 A surge (10 μs) - supports pulsed drive for enhanced brightness without derating in intermittent-use applications |
Applications
| Status lights | Off / on indicator |
|---|---|
Use Scenario: Front-panel LED on industrial PLC module indicating RUN/STOP state. IC Role / Device Role / Timing Role: Visual status emitter - no timing function; driven statically or toggled via microcontroller GPIO. Use Value: High on-off contrast from diffused lens and ±30° viewing angle ensures clear visibility at multiple operator angles without glare. |
Use Scenario: Power-on indicator in medical diagnostic equipment power supply unit. IC Role / Device Role / Timing Role: Steady-state DC indicator - powered directly from regulated 5 V rail through series resistor. Use Value: Tight 562–575 nm wavelength binning guarantees consistent green hue across production batches, meeting IEC 62366 usability requirements. |
| Background illumination | Readout lights |
Use Scenario: Edge-lit backlight for membrane switch overlay in HVAC control panel. IC Role / Device Role / Timing Role: Constant-current illuminated element - driven at 10–20 mA for uniform luminance. Use Value: 2.5–13 mcd intensity range allows selection of appropriate bin (e.g., N or P group) to balance visibility and power consumption. |
Use Scenario: Digit readout illumination in handheld multimeter LCD display. IC Role / Device Role / Timing Role: Low-duty-cycle pulsed emitter - synchronized with digit refresh to minimize average current draw. Use Value: 1 A surge rating enables brief high-current pulses (≤10 μs) for increased perceived brightness without exceeding thermal limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar green LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLHG4400-AS12 | Anode-first tape orientation (AS vs MS); identical optical/electrical specs and binning | Requires reconfiguration of pick-and-place feeder for anode-leading feed; same PCB layout | Select TLHG4400-AS12 only if existing SMT line is calibrated for anode-first tape handling |
| TLHG4401-MS12 | Higher luminous intensity (4–14 mcd at 10 mA) - same wavelength and VF range | Better suited for high-ambient-light environments (e.g., outdoor kiosks); may require resistor adjustment | Choose TLHG4401-MS12 when >13 mcd output is required; verify current-limiting network for 20 mA operation |
Compared with TLHG4400-MS12, TLHG4400-AS12 differs only in tape orientation - no electrical or optical change - while TLHG4401-MS12 provides higher baseline brightness within the same green wavelength band and package, enabling improved legibility without altering mechanical fit.
Availability
TLHG4400-MS12 is available at Aetrix Electronics and suitable for industrial control panels, medical device indicators, and test equipment status lights requiring stable component supply, consistent color matching, and long-term manufacturing continuity.
Supply support for TLHG4400-MS12 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 Semiconductors is a global leader in discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power MOSFETs, and precision resistors.
The TLHG4400-MS12 belongs to Vishay's TLH.44.. standard LED family, engineered for general-purpose indicating and lighting where consistent color, wide viewing angle, and mechanical interchangeability are prioritized over ultra-high efficiency or specialized spectral profiles.
FAQ
What is the luminous intensity range of TLHG4400-MS12 at 10 mA?
The TLHG4400-MS12 delivers a luminous intensity of 2.5–13 mcd at 10 mA, measured per ANSI C78.377. This range reflects factory binning - units shipped in one bag belong to a single intensity group (e.g., M or N), ensuring uniform brightness across a production batch of TLHG4400-MS12 devices.
Does TLHG4400-MS12 have wavelength binning, and how is it specified?
Yes, TLHG4400-MS12 is categorized into eight dominant wavelength groups (562–575 nm), labeled 3 through 8 in Vishay's color classification table. Each TLHG4400-MS12 unit is binned to one group, and full bags contain only LEDs from the same group - enabling consistent green hue in multi-LED assemblies without post-production sorting.
What does the "MS12" suffix indicate in TLHG4400-MS12?
The "MS12" suffix denotes tape packaging: "MS" identifies the tape type (25.5 mm width), and "12" specifies cathode-first feed direction per EIA-481-D. This ensures correct orientation during automated placement - the cathode lead enters the pick-and-place nozzle first, matching standard SMT workflow for TLHG4400-MS12.
Can TLHG4400-MS12 be driven with pulsed current, and what is its surge rating?
Yes, TLHG4400-MS12 supports pulsed operation with a surge forward current rating of 1 A for pulse widths ≤10 μs. This allows brief high-brightness flashes - such as status alerts - without exceeding thermal limits, provided duty cycle remains low and average power stays within the 100 mW dissipation limit at Tamb ≤ 60 °C.
What is the viewing angle specification for TLHG4400-MS12, and how does it affect mounting?
TLHG4400-MS12 has an angle of half intensity of ±30°, meaning luminous intensity drops to 50% at 30° off-axis. This wide viewing angle eliminates the need for precise angular alignment during panel integration - operators can view the TLHG4400-MS12 clearly from multiple positions, making it ideal for front-panel indicators in ruggedized enclosures.
TLHG4400-MS12 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- TLH.44
- Package/Case:
- Radial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Color:
- Green
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Diffused
- Millicandela Rating:
- 13mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 3mm, T-1
- Voltage - Forward (Vf) (Typ):
- 2.4V
- Current - Test:
- 10mA
- Viewing Angle:
- 60°
- Mounting Type:
- Through Hole
- Wavelength - Dominant:
- 569nm
- Wavelength - Peak:
- 565nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- T-1 (3mm)
- Size / Dimension:
- -
TLHG4400-MS12 FAQ
1.How can I place an order for TLHG4400-MS12 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLHG4400-MS12 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 TLHG4400-MS12 reliable?
The price and inventory of TLHG4400-MS12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLHG4400-MS12 is usually 5 days.
3.What payment methods are accepted for TLHG4400-MS12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLHG4400-MS12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLHG4400-MS12?
TLHG4400-MS12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLHG4400-MS12 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 TLHG4400-MS12?
For technical support, including TLHG4400-MS12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLHG4400-MS12 requirements.
6.How does Aetrix verify that TLHG4400-MS12 is sourced from the original manufacturer or authorized distributors?
All TLHG4400-MS12 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 TLHG4400-MS12 meets industry standards.
7.What is the process for return or replacement of TLHG4400-MS12?
All TLHG4400-MS12 units undergo pre-shipment inspection (PSI). If there is an issue with TLHG4400-MS12, 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 TLHG4400-MS12 part is unused and in its original packaging.
Return procedure for TLHG4400-MS12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLHG4400-MS12 Tags

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LTST-C281KRKT
Lite-On Inc.

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150060GS75000
Würth Elektronik

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150060VS75000
Würth Elektronik

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150060AS75000
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150060YS75000
Würth Elektronik

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150060SS75000
Würth Elektronik

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150060BS75000
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151031VS06000
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151033RS03000
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150080BS75000
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150080GS75000
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150141GS73100
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