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Vishay Semiconductor Opto Division TLHY4405-MS12
- Part No.:
- TLHY4405-MS12
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLHY4405-MS12.pdf
- Description:
- LED YELLOW DIFFUSED T-1 T/H
- Quantity:
- Payment:
- Shipping:
Inventory:12,844
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Product details
Overview
TLHY4405-MS12 from Vishay Semiconductors is a yellow light-emitting diode (LED) in a 3 mm tinted diffused plastic package (T-1), delivering 6.3–11 mcd luminous intensity at 10 mA, with dominant wavelength 581–594 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 TLHY4405-MS12 datasheet, TLHY4405-MS12 pinout, TLHY4405-MS12 application, or TLHY4405-MS12 equivalent, key selection criteria include luminous intensity binning (Q group), ±30° viewing angle, DC/high-peak-current capability, and compatibility with standard 3 mm LED mounting and soldering processes.
Technical Context
This device is a GaAsP-on-GaP-based yellow LED optimized for high on-off contrast and uniform visual appearance across production lots. Its ±30° half-intensity viewing angle and tinted diffused lens ensure wide-angle visibility without hotspots.
Rated for 30 mA DC forward current and 1 A surge current (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 | 6.3–11 mcd at 10 mA - defines visible brightness level under standard test conditions; Q-group binned for consistent appearance in multi-LED arrays |
| Dominant wavelength | 581–594 nm - specifies yellow chromaticity range; enables color-matching within same wavelength group (e.g., Group 3: 585–588 nm) |
| Forward voltage | 2.4–3.0 V at 20 mA - determines series resistor value for constant-current drive; impacts power dissipation (max 100 mW at Tamb ≤ 60 °C) |
| Viewing angle | ±30° half-intensity - ensures uniform illumination across front-panel indicators without narrow beam concentration |
| Absolute max forward current | 30 mA DC - sets upper limit for continuous operation; supports pulsed operation up to 1 A for brief signaling events |
| Junction temperature | 100 °C - defines thermal ceiling; requires thermal design consideration when operating near max power in enclosed environments |
Pinout & Package
TLHY4405-MS12 uses a standard 2-pin axial leaded Ø3 mm (T-1) plastic package with cathode-indicating flat side and shorter lead. The MS12 tape orientation code indicates cathode-first feed direction in reel packaging.
| 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 reverse breakdown |
| Cathode (shorter lead, flat side) | Negative terminal | Typically tied to ground or low-side switch; flat edge on package body identifies this terminal for manual assembly verification |
Key Features
| Feature | Design Value |
|---|---|
| Standard Ø3 mm (T-1) package | Ensures mechanical compatibility with legacy 3 mm LED sockets, drill patterns, and automated placement equipment |
| Luminous intensity binning (Q group) | Guarantees 6.3–12.5 mcd consistency per bag - eliminates visible mismatch in multi-LED status displays |
| Wavelength grouping (Yellow Groups 1–6) | Enables precise color matching across batches; Group 3 (585–588 nm) is typical for TLHY4405 variants |
| Tinted diffused lens | Provides high on-off contrast and soft edge illumination - critical for legible legend lighting and readout applications |
| DC and high peak current capability | Supports both steady-state panel indicators (30 mA) and short-pulse signaling (1 A, 10 μs) without degradation |
Applications
| Status Indicator | Off/On Panel Light |
|---|---|
Use Scenario: Visual confirmation of system power-up, fault condition, or mode selection on industrial HMI panels. IC Role / Device Role / Timing Role: Discrete optical output device driven by microcontroller GPIO or logic-level signal. Use Value: High on-off contrast and ±30° viewing angle ensure clear visibility from multiple operator positions without glare. |
Use Scenario: Front-panel power or function enable indicator in medical diagnostic equipment cabinets. IC Role / Device Role / Timing Role: Passive current-driven light source; no timing or control logic - responds instantly to applied bias. Use Value: Q-group luminous intensity binning prevents inconsistent brightness across identical units in multi-unit OEM deployments. |
| Background Illumination | Legend Lighting |
Use Scenario: Uniform backlighting for membrane switch overlays in automotive dashboards. IC Role / Device Role / Timing Role: Constant-current driven emitter providing diffuse ambient light behind translucent legends. Use Value: Tinted diffused lens and wide viewing angle eliminate hotspots and provide even illumination across 20–30 mm areas. |
Use Scenario: Edge-lit alphanumeric legends on test equipment control panels requiring high readability. IC Role / Device Role / Timing Role: Discrete yellow LED mounted adjacent to etched or printed legends on PCB-mounted overlays. Use Value: Dominant wavelength 581–594 nm delivers optimal human-eye photopic response for yellow text under ambient lighting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar yellow LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLHY4405-AS12 | Same luminous intensity (6.3–11 mcd) and wavelength (581–594 nm), but AS12 denotes anode-first tape orientation vs. MS12's cathode-first feed | Requires reversal of tape feed direction in pick-and-place setup; identical optical and electrical performance | Select TLHY4405-AS12 only if existing SMT line is configured for anode-leading feed; otherwise TLHY4405-MS12 avoids retooling. |
| TLHY4401-MS12 | Lower luminous intensity (2.5–10.5 mcd), same package, wavelength, and VF range; belongs to N-group binning instead of Q-group | Suitable where reduced brightness suffices (e.g., low-ambient-light environments); less stringent binning tolerance | Choose TLHY4401-MS12 for cost-sensitive designs where absolute brightness uniformity is non-critical. |
Compared with TLHY4405-MS12, TLHY4405-AS12 offers identical photometric performance but differs in tape orientation - affecting SMT feeder configuration - while TLHY4401-MS12 trades intensity and binning precision for lower unit cost in non-critical visibility applications.
Availability
TLHY4405-MS12 is available at Aetrix Electronics and suitable for industrial HMIs, medical device status panels, and test equipment legend lighting requiring stable component supply and batch-to-batch optical consistency.
Supply support for TLHY4405-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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with emphasis on reliability and parametric consistency.
The TLHY4405-MS12 belongs to Vishay's TLH.44.. series of standard-indicator LEDs, designed specifically for general-purpose visual signaling where color accuracy, viewing angle, and mechanical interchangeability are prioritized over ultra-high efficiency or specialized spectral output.
FAQ
What is the luminous intensity range of TLHY4405-MS12 and how is it binned?
The TLHY4405-MS12 has a luminous intensity range of 6.3–11 mcd at 10 mA and is binned into the Q group (6.3–12.5 mcd) per Vishay's classification table. This ensures that all units shipped in one packing unit meet the IVmin./IVmax. ≤ 0.5 ratio, guaranteeing visual uniformity in multi-LED assemblies. TLHY4405-MS12 is not supplied as single-intensity subgroups - only full Q-group bags are available.
Does TLHY4405-MS12 have a specified dominant wavelength range, and is it wavelength-binned?
Yes, TLHY4405-MS12 has a dominant wavelength range of 581–594 nm and is categorized into Yellow wavelength groups (Groups 1–6). Each bag contains LEDs from a single wavelength group - for example, Group 3 covers 585–588 nm - ensuring consistent yellow hue across production lots. TLHY4405-MS12 shipments comply with this single-group-per-bag policy to maintain color fidelity.
What is the meaning of the "MS12" suffix in TLHY4405-MS12?
The "MS12" suffix in TLHY4405-MS12 indicates two attributes: "MS" refers to the tape carrier specification (25.5 mm reel width), and "12" denotes cathode-first orientation in the tape - meaning the cathode lead appears before the anode when fed into automated placement equipment. This differs from "AS12", which specifies anode-first feed. TLHY4405-MS12 is compatible with standard 3 mm LED feeders configured for cathode-leading orientation.
What are the absolute maximum ratings for TLHY4405-MS12, and how do they impact PCB layout?
TLHY4405-MS12 has absolute maximum ratings of 30 mA DC forward current, 6 V reverse voltage, 100 mW power dissipation (at Tamb ≤ 60 °C), and 100 °C junction temperature. These require a minimum 100 Ω series resistor at 5 V supply and adequate copper area or spacing to manage thermal resistance (RthJA = 400 K/W); exceeding 60 °C ambient necessitates derating or forced airflow to prevent luminance decay or premature failure.
Can TLHY4405-MS12 be used in pulsed operation, and what are the limits?
Yes, TLHY4405-MS12 supports pulsed operation up to 1 A surge forward current for pulse widths ≤ 10 μs, with duty cycle governed by Fig. 2 and Fig. 6 in the datasheet. At tp = 10 μs and tp/T = 0.01, peak current remains within safe limits up to ~100 mA average - enabling strobe-style signaling without thermal stress. TLHY4405-MS12 must remain within its 100 mW average power envelope during extended pulsing.
TLHY4405-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:
- Yellow
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Diffused
- Millicandela Rating:
- 11mcd
- 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:
- 588nm
- Wavelength - Peak:
- 585nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- T-1 (3mm)
- Size / Dimension:
- -
TLHY4405-MS12 FAQ
1.How can I place an order for TLHY4405-MS12 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLHY4405-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 TLHY4405-MS12 reliable?
The price and inventory of TLHY4405-MS12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLHY4405-MS12 is usually 5 days.
3.What payment methods are accepted for TLHY4405-MS12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLHY4405-MS12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLHY4405-MS12?
TLHY4405-MS12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLHY4405-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 TLHY4405-MS12?
For technical support, including TLHY4405-MS12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLHY4405-MS12 requirements.
6.How does Aetrix verify that TLHY4405-MS12 is sourced from the original manufacturer or authorized distributors?
All TLHY4405-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 TLHY4405-MS12 meets industry standards.
7.What is the process for return or replacement of TLHY4405-MS12?
All TLHY4405-MS12 units undergo pre-shipment inspection (PSI). If there is an issue with TLHY4405-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 TLHY4405-MS12 part is unused and in its original packaging.
Return procedure for TLHY4405-MS12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLHY4405-MS12 Tags
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150060GS75000
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150060VS75000
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150060YS75000
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150060SS75000
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150060BS75000
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