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Vishay Semiconductor Opto Division TLHG4400-AS12Z
- Part No.:
- TLHG4400-AS12Z
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLHG4400-AS12Z.pdf
- Description:
- LED GREEN DIFFUSED T-1 T/H
- Quantity:
- Payment:
- Shipping:
Inventory:8,583
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Product details
Overview
TLHG4400-AS12Z from Vishay Semiconductors is a green high-efficiency LED in a standard Ø 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-AS12Z datasheet, TLHG4400-AS12Z pinout, TLHG4400-AS12Z application, or TLHG4400-AS12Z equivalent, key selection criteria include luminous intensity binning (N group), ±30° viewing angle, DC/high-peak-current capability, and GaP-on-GaP chip technology for stable green emission.
Technical Context
The TLHG4400-AS12Z uses a GaP-on-GaP semiconductor structure optimized for visible green emission, with dominant wavelength tightly binned across 562–575 nm to ensure visual uniformity in multi-LED arrays. Its Ø 3 mm tinted diffused package provides wide angular distribution and high on-off contrast.
Rated for DC and pulsed operation up to 1 A surge current (tp ≤ 10 μs), it operates across –40 °C to +100 °C ambient temperature and supports soldering at 260 °C for 5 s. Thermal resistance junction-to-ambient is 400 K/W, limiting continuous power dissipation to 100 mW at Tamb ≤ 60 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 2.5–13 mcd at 10 mA - defines brightness level for human-visible status indication under standard drive conditions |
| Dominant wavelength | 562–575 nm - specifies green spectral output range ensuring consistent color appearance across production lots |
| Forward voltage | 2.4–3.0 V at 20 mA - determines series resistor value and power supply headroom in constant-current driver designs |
| Viewing angle | ±30° half-intensity - enables wide-angle visibility without requiring precise user alignment in panel-mount applications |
| Absolute max forward current | 30 mA DC - sets upper limit for continuous operation; higher peak currents allowed only with controlled duty cycle |
| Reverse voltage | 6 V - defines maximum allowable reverse bias before risk of junction breakdown in AC-coupled or multiplexed circuits |
| Junction temperature | 100 °C - constrains thermal design when operating at elevated ambient or high drive levels |
Pinout & Package
TLHG4400-AS12Z is housed in a standard Ø 3 mm (T-1) tinted diffused plastic package with axial leads. The device has two terminals: anode and cathode. Polarity is marked by a flat side on the lens housing and cathode lead shorter in ammopack orientation code AS12Z (cathode first).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal | Connected to current source or higher potential; must be biased >2.4 V above cathode to emit light |
| Cathode | Negative terminal | Connected to ground or current sink; polarity marking aligns with AS12Z tape orientation (cathode lead fed first) |
Key Features
| Feature | Design Value |
|---|---|
| Standard Ø 3 mm (T-1) package | Enables drop-in replacement in legacy indicator layouts and compatibility with common PCB mounting holes and sockets |
| Luminous intensity binning (N group) | Groups devices with 2.5–5 mcd output at 10 mA, ensuring consistent brightness across multiple units in a single assembly |
| Wavelength binning (green) | Restricts dominant wavelength to 562–575 nm, minimizing visible color shift between LEDs in multi-unit displays |
| Wide viewing angle (±30°) | Provides uniform brightness over 60° cone, eliminating hot spots and supporting readability from off-axis positions |
| DC and high-peak-current capability | Supports both steady-state operation and short-pulse driving (e.g., multiplexed displays), with 1 A surge rating for tp ≤ 10 μs |
Applications
| Status Indicator | Instrumentation Readout |
|---|---|
Use Scenario: Front-panel LED on programmable logic controller (PLC) indicating RUN/STOP state. IC Role / Device Role / Timing Role: Visual status emitter - no timing or signal processing function; driven by microcontroller GPIO with current-limiting resistor. Use Value: High on-off contrast and ±30° viewing angle ensure clear visibility across operator workstations without mechanical adjustment. |
Use Scenario: Numeric display backlight or digit separator in handheld multimeter. IC Role / Device Role / Timing Role: Constant-brightness illumination source - operated at fixed 10 mA DC, leveraging N-group binning for uniform appearance. Use Value: Tight 562–575 nm wavelength control prevents color mismatch between adjacent green indicators in multi-digit displays. |
| Industrial Control Panel | Maintenance Legend Light |
Use Scenario: Function-label illumination on HMI overlay for factory floor equipment. IC Role / Device Role / Timing Role: Low-power legend illuminator - mounted behind translucent membrane, driven intermittently via shift register. Use Value: Tinted diffused lens and 100 °C max operating temperature support reliable operation in unventilated enclosures near heat-generating components. |
Use Scenario: Service-mode indicator inside telecom rack-mounted chassis. IC Role / Device Role / Timing Role: Diagnostic visibility aid - activated during maintenance mode to highlight service points under low-ambient lighting. Use Value: 2.5–13 mcd output at 10 mA delivers sufficient luminance for technician identification without glare or excessive power draw. |
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-AS21 | Same optical specs but AS21 tape orientation (anode first); identical luminous intensity (2.5–13 mcd) and wavelength (562–575 nm) | Requires PCB layout or feeder setup configured for anode-first tape feed instead of cathode-first | Select TLHG4400-AS21 only if existing SMT line is calibrated for AS21 orientation; otherwise TLHG4400-AS12Z maintains tape compatibility. |
| TLHG4401-AS12Z | Higher luminous intensity (4–14 mcd at 10 mA), same package, wavelength, and tape orientation | Better suited for applications requiring higher visibility in bright ambient environments or longer viewing distances | Choose TLHG4401-AS12Z when >13 mcd output is needed; TLHG4400-AS12Z remains optimal for power-constrained or glare-sensitive installations. |
Compared with TLHG4400-AS12Z, TLHG4400-AS21 offers identical photometric performance but differs in tape feed direction, while TLHG4401-AS12Z provides higher brightness within the same footprint and orientation - enabling brightness scaling without redesigning optics or layout.
Availability
TLHG4400-AS12Z is available at Aetrix Electronics and suitable for industrial control panels, instrumentation readouts, and maintenance legend lighting requiring stable component supply, consistent binning, and long-term manufacturability.
Supply support for TLHG4400-AS12Z 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 optoelectronics, power MOSFETs, and precision resistors.
The TLHG4400-AS12Z belongs to Vishay's standard Ø 3 mm LED family, designed for general-purpose indicating and lighting where visual consistency, wide viewing angle, and robust thermal performance are essential.
FAQ
What is the luminous intensity range of TLHG4400-AS12Z at 10 mA?
The TLHG4400-AS12Z delivers a minimum luminous intensity of 2.5 mcd and a typical value of 13 mcd at 10 mA forward current, falling within the N bin (2.5–5 mcd min–max range per packing unit). This binning ensures consistent brightness across units shipped together, critical for uniform panel appearance. The TLHG4400-AS12Z datasheet confirms these values under standard test conditions (Tamb = 25 °C, pulse duration 25 ms).
What does the "AS12Z" suffix indicate for TLHG4400-AS12Z?
The "AS12Z" suffix denotes ammopack packaging with cathode-first tape orientation (code 12) and Z-suffix indicating the standard ammopack format. The "Z" also signifies that the part is supplied in moisture-sensitive packaging compliant with J-STD-020. TLHG4400-AS12Z is not a different electrical variant - all optical and electrical specifications match the base TLHG4400, with AS12Z defining only packaging and orientation.
Can TLHG4400-AS12Z be driven with pulsed current?
Yes, TLHG4400-AS12Z supports pulsed operation up to 1 A peak forward current for pulse widths ≤10 μs, as specified in its absolute maximum ratings. Duty cycle must be limited to maintain average power within 100 mW and junction temperature below 100 °C. The TLHG4400-AS12Z datasheet includes Fig. 2 and Fig. 6 showing safe operating regions for pulse length and duty cycle versus forward current.
What is the viewing angle specification for TLHG4400-AS12Z?
The TLHG4400-AS12Z has an angle of half intensity of ±30°, meaning luminous intensity drops to 50% of its on-axis value at 30° off-center in both horizontal and vertical planes. This wide viewing angle is achieved via its tinted diffused Ø 3 mm lens and supports readability from multiple operator positions without requiring precise alignment - a key requirement confirmed in the TLHG4400-AS12Z product documentation.
Is TLHG4400-AS12Z RoHS-compliant and halogen-free?
Yes, TLHG4400-AS12Z complies with RoHS Directive 2011/65/EU and is halogen-free per Vishay's material categorization standard (document 99912). Compliance is verified through Vishay's internal material declarations and third-party testing; full substance data is available upon request. The TLHG4400-AS12Z product page and datasheet reference compliance status in the "Material categorization" section.
TLHG4400-AS12Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- TLH.44
- Package/Case:
- Radial
- Packaging:
- Cut Tape (CT)
- 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-AS12Z FAQ
1.How can I place an order for TLHG4400-AS12Z through Aetrix?
Please submit a Request for Quotation (RFQ) for TLHG4400-AS12Z 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-AS12Z reliable?
The price and inventory of TLHG4400-AS12Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLHG4400-AS12Z is usually 5 days.
3.What payment methods are accepted for TLHG4400-AS12Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLHG4400-AS12Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLHG4400-AS12Z?
TLHG4400-AS12Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLHG4400-AS12Z 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-AS12Z?
For technical support, including TLHG4400-AS12Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLHG4400-AS12Z requirements.
6.How does Aetrix verify that TLHG4400-AS12Z is sourced from the original manufacturer or authorized distributors?
All TLHG4400-AS12Z 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-AS12Z meets industry standards.
7.What is the process for return or replacement of TLHG4400-AS12Z?
All TLHG4400-AS12Z units undergo pre-shipment inspection (PSI). If there is an issue with TLHG4400-AS12Z, 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-AS12Z part is unused and in its original packaging.
Return procedure for TLHG4400-AS12Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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