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Vishay Semiconductor Opto Division TLHR4401-AS12Z
- Part No.:
- TLHR4401-AS12Z
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLHR4401-AS12Z.pdf
- Description:
- LED RED DIFFUSED T-1 T/H
- Quantity:
- Payment:
- Shipping:
Inventory:7,159
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Product details
Overview
TLHR4401-AS12Z from Vishay Semiconductors is a red light-emitting diode (LED) in a 3 mm tinted diffused plastic package, delivering 2.5–14 mcd luminous intensity at 10 mA, with dominant wavelength 612–625 nm and ±30° viewing angle. It operates with forward voltage of 2–3 V at 20 mA and supports DC or pulsed drive for status indication and panel lighting.
For engineers reviewing the TLHR4401-AS12Z datasheet, TLHR4401-AS12Z pinout, TLHR4401-AS12Z application, or TLHR4401-AS12Z equivalent, this page provides verified optical, electrical, and mechanical specifications - including luminous intensity binning, wavelength grouping, and ammopack orientation (anode-first, code 12) - to support indicator design, BOM validation, and visual consistency planning.
Technical Context
The TLHR4401-AS12Z uses GaAsP-on-GaP epitaxial technology to produce red light with high on-off contrast enabled by its wide ±30° half-intensity angle and tinted diffused lens. Its luminous intensity is binned per group N (2.5–5 mcd), ensuring uniform appearance across assemblies.
Rated for continuous operation from –40 °C to +100 °C ambient, it sustains 30 mA DC forward current and 1 A surge current (tp ≤ 10 μs), with thermal resistance of 400 K/W and maximum junction temperature of 100 °C - optimized for low-power indicator circuits with stable optical output over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 2.5–14 mcd at 10 mA - defines visible brightness level for human-readable status indication under standard drive conditions |
| Dominant wavelength | 612–625 nm - specifies red spectral output suitable for high-contrast visual signaling and color-coded UI elements |
| Viewing angle | ±30° half-intensity - ensures broad, even illumination across front-panel indicators without hotspots |
| Forward voltage | 2–3 V at 20 mA - determines series resistor value and power dissipation in simple DC bias networks |
| Absolute max forward current | 30 mA DC - sets upper limit for continuous drive without degradation or accelerated aging |
| Junction-to-ambient thermal resistance | 400 K/W - indicates thermal performance in open-air mounting; requires derating above 60 °C ambient |
| Package type | Ø 3 mm (T-1) tinted diffused plastic - standard through-hole form factor compatible with legacy PCB layouts and manual assembly |
Pinout & Package
TLHR4401-AS12Z is housed in a standard Ø 3 mm (T-1) plastic package with axial leads. The "AS12Z" suffix denotes ammopack packaging with cathode-first orientation (code 12) and tape-and-reel delivery (Z). Lead polarity follows standard LED convention: anode (longer lead) and cathode (shorter lead, flat side on package).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Positive terminal | Connected to current source or pull-up; must be biased ≥2 V above cathode to forward-bias GaAsP junction |
| Cathode (K) | Negative terminal | Connected to ground or current sink; identifies polarity for correct PCB placement and soldering |
Key Features
| Feature | Design Value |
|---|---|
| Standard T-1 (Ø 3 mm) package | Enables drop-in replacement in existing 3 mm indicator footprints without board redesign |
| Luminous intensity binning (Group N) | Guarantees 2.5–5 mcd consistency within each bag - critical for uniform panel appearance in multi-LED arrays |
| Tinted diffused lens | Provides high on-off contrast and soft edge definition, reducing glare and improving readability under ambient light |
| Wide ±30° viewing angle | Supports off-axis visibility up to 60° total cone - ideal for control panels viewed from multiple angles |
| DC and high peak current capability | Handles 30 mA continuous or 1 A transient pulses - accommodates PWM dimming and surge-tolerant driver designs |
Applications
| Status Indicator | Panel Legend Lighting |
|---|---|
Use Scenario: Front-panel LED on industrial HMI showing system power-on state. IC Role / Device Role / Timing Role: Visual status emitter providing unambiguous red ON signal. Use Value: High-contrast red output at 2.5–14 mcd ensures visibility in lit environments; ±30° viewing angle covers operator's typical line-of-sight range. |
Use Scenario: Backlighting engraved labels on a medical device control panel. IC Role / Device Role / Timing Role: Steady-state illumination source for tactile legends. Use Value: Tinted diffused lens delivers uniform, non-glare light spread across legend area without hotspots or shadows. |
| Maintenance Access Indicator | Readout Display Marker |
Use Scenario: LED adjacent to service port indicating safe access window during equipment maintenance. IC Role / Device Role / Timing Role: Safety-critical visual cue requiring consistent luminance and color fidelity. Use Value: Dominant wavelength 612–625 nm meets red-color coding standards; Group N binning ensures identical brightness across all units in field-deployed devices. |
Use Scenario: Small-area highlight LED next to digital display digits to draw attention to active readout mode. IC Role / Device Role / Timing Role: Attention-directing auxiliary emitter synchronized with display update. Use Value: Fast turn-on/off response (ns-scale junction capacitance <50 pF) enables precise timing alignment with display refresh cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar red LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLHR4401-AS21 | Same luminous intensity (2.5–14 mcd) and wavelength (612–625 nm), but AS21 denotes anode-first tape orientation vs. AS12Z's cathode-first. | Requires PCB layout verification if replacing TLHR4401-AS12Z in automated pick-and-place; same optical/electrical behavior. | Select TLHR4401-AS21 only when anode-leading tape feed matches SMT line configuration. |
| TLHR4405-AS12Z | Higher luminous intensity (6.3–15 mcd), otherwise identical package, wavelength, and electrical specs. | Better suited for high-ambient-light environments or longer viewing distances; may require resistor recalibration. | Choose TLHR4405-AS12Z where increased brightness justifies minor drive adjustment and higher cost. |
Compared with TLHR4401-AS12Z, TLHR4401-AS21 offers identical photometric performance but reversed tape orientation - critical for feeder setup - while TLHR4405-AS12Z delivers ~2.5× higher luminous intensity within the same footprint and drive constraints, enabling enhanced visibility without changing PCB or optics.
Availability
TLHR4401-AS12Z is available at Aetrix Electronics and suitable for industrial HMIs, medical device status panels, test equipment indicators, and maintenance access systems requiring stable component supply, consistent optical binning, and long-lifecycle availability.
Supply support for TLHR4401-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 Semiconductors is a global leader in discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power management, and sensing solutions for industrial, automotive, and computing markets.
The TLHR4401-AS12Z belongs to Vishay's TLH.44.. series of standard 3 mm LEDs, engineered specifically for general-purpose indicating and lighting - emphasizing mechanical consistency, luminous uniformity, and wide-angle visibility in cost-sensitive applications.
FAQ
What is the luminous intensity range of TLHR4401-AS12Z at 10 mA?
The TLHR4401-AS12Z delivers a minimum luminous intensity of 2.5 mcd and a typical value of 14 mcd at 10 mA forward current, binned into Group N (2.5–5 mcd) for consistent appearance. This range is measured with a 25 ms pulse and applies to devices shipped in the same packing unit, where IVmin/IVmax ≤ 0.5.
What does the "AS12Z" suffix mean for TLHR4401-AS12Z?
The "AS12Z" suffix on TLHR4401-AS12Z indicates ammopack tape-and-reel packaging with cathode-first orientation (code 12) and Z-designation for tape delivery. It confirms the device is supplied in standardized carrier tape compliant with EIA-481, enabling compatibility with automated assembly systems.
Can TLHR4401-AS12Z be driven with PWM for brightness control?
Yes, TLHR4401-AS12Z supports high peak current (1 A, tp ≤ 10 μs), making it suitable for PWM dimming. Its junction capacitance is ≤50 pF, enabling fast turn-on/turn-off response. For reliable operation, maintain average current ≤30 mA and observe duty cycle limits per Vishay's Fig. 2 and Fig. 6 in the datasheet.
What is the maximum operating temperature for TLHR4401-AS12Z?
The TLHR4401-AS12Z has an operating temperature range of –40 °C to +100 °C ambient. At temperatures above 60 °C, power dissipation must be derated linearly from 100 mW due to its 400 K/W thermal resistance; full-rated 30 mA DC current is only permissible below 60 °C ambient.
How does TLHR4401-AS12Z differ from TLHR4400-AS12Z?
TLHR4401-AS12Z provides higher luminous intensity (2.5–14 mcd vs. 1.6–13 mcd for TLHR4400-AS12Z) while sharing identical package, dominant wavelength (612–625 nm), forward voltage (2–3 V), and absolute maximum ratings. Both belong to the same TLH.44.. family and use GaAsP-on-GaP technology.
TLHR4401-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:
- Red
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Diffused
- Millicandela Rating:
- 14mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 3mm, T-1
- Voltage - Forward (Vf) (Typ):
- 2V
- Current - Test:
- 10mA
- Viewing Angle:
- 60°
- Mounting Type:
- Through Hole
- Wavelength - Dominant:
- 619nm
- Wavelength - Peak:
- 635nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- T-1 (3mm)
- Size / Dimension:
- -
TLHR4401-AS12Z FAQ
1.How can I place an order for TLHR4401-AS12Z through Aetrix?
Please submit a Request for Quotation (RFQ) for TLHR4401-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 TLHR4401-AS12Z reliable?
The price and inventory of TLHR4401-AS12Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLHR4401-AS12Z is usually 5 days.
3.What payment methods are accepted for TLHR4401-AS12Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLHR4401-AS12Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLHR4401-AS12Z?
TLHR4401-AS12Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLHR4401-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 TLHR4401-AS12Z?
For technical support, including TLHR4401-AS12Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLHR4401-AS12Z requirements.
6.How does Aetrix verify that TLHR4401-AS12Z is sourced from the original manufacturer or authorized distributors?
All TLHR4401-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 TLHR4401-AS12Z meets industry standards.
7.What is the process for return or replacement of TLHR4401-AS12Z?
All TLHR4401-AS12Z units undergo pre-shipment inspection (PSI). If there is an issue with TLHR4401-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 TLHR4401-AS12Z part is unused and in its original packaging.
Return procedure for TLHR4401-AS12Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLHR4401-AS12Z 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
Würth Elektronik
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150060YS75000
Würth Elektronik
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150060SS75000
Würth Elektronik
-
150060BS75000
Würth Elektronik
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151031VS06000
Würth Elektronik
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151033RS03000
Würth Elektronik
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150080BS75000
Würth Elektronik
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150080GS75000
Würth Elektronik
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150141GS73100
Würth Elektronik
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