H21A4

Name: H21A4
Brand: Fairchild Semiconductor
SKU: H21A4
Availability: InStock

Product Status Obsolete

Sensing Distance 0.118" (3mm)

Sensing Method Through-Beam

Output Configuration Phototransistor

TRANSISTOR OUTPUT SLOTTED SWITCH

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H21A4 Specifications

11 parameters

Product Status: Obsolete
Sensing Distance: 0.118" (3mm)
Sensing Method: Through-Beam
Output Configuration: Phototransistor
Current - DC Forward (If) (Max): 50 mA
Current - Collector (Ic) (Max): 20 mA
Voltage - Collector Emitter Breakdown (Max): 55 V
Response Time: 8μs, 50μs
Operating Temperature: -55°C ~ 100°C
Mounting Type: Through Hole, Flange
Package / Case: Slotted, PC Pins

About H21A4

The Fairchild Semiconductor H21A4 is a Photointerrupters - Slot Type - Transistor Output electronic component manufactured by Fairchild Semiconductor. Buy H21A4 from seekcomp, your trusted H21A4 supplier and professional Fairchild Semiconductor distributor. TRANSISTOR OUTPUT SLOTTED SWITCH. This H21A4 component features Operating Temperature: -55°C ~ 100°C, Mounting Type: Through Hole, Flange, Package / Case: Slotted, PC Pins.

Key Specifications

Operating Temperature-55°C ~ 100°C

Mounting TypeThrough Hole, Flange

Package / CaseSlotted, PC Pins

The H21A4 offers 11 documented technical parameters. Additional specifications include Product Status (Obsolete), Sensing Distance (0.118" (3mm)), Sensing Method (Through-Beam), Output Configuration (Phototransistor), Current - DC Forward (If) (Max) (50 mA). For complete technical data, refer to the Parameters table above.

About Fairchild Semiconductor

Fairchild Semiconductor manufactures high-performance power and mobile semiconductor solutions essential for the automotive, industrial, and telecommunications sectors. As your primary Fairchild Semiconductor distributor, seekcomp stocks 14942+ individual items across 134 categories to support your most demanding projects.

Fairchild Semiconductor H21A4 in stock — available for immediate purchase from seekcomp. As a professional Fairchild Semiconductor distributor and H21A4 supplier, we guarantee 100% genuine and original components sourced directly from the manufacturer. We offer competitive H21A4 pricing, flexible order quantities, and reliable worldwide shipping. Submit a Request for Quote (RFQ) to get the best H21A4 price with fast delivery.

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Frequently Asked Questions

What is the Fairchild Semiconductor H21A4?

The Fairchild Semiconductor H21A4 is a Photointerrupters - Slot Type - Transistor Output electronic component manufactured by Fairchild Semiconductor. Designed for professional applications, this Fairchild Semiconductor Photointerrupters - Slot Type - Transistor Output offers reliable performance in industrial, automotive, and consumer electronics systems. seekcomp maintains verified stock of the H21A4 for immediate worldwide shipment.

What is the H21A4 cross reference or equivalent?

The H21A4 cross reference and equivalent parts can be identified using the Fairchild Semiconductor H21A4 datasheet specifications. Common H21A4 alternatives are typically found within the Fairchild Semiconductor Photointerrupters - Slot Type - Transistor Output product family. Contact seekcomp for H21A4 cross-reference assistance — our engineers can recommend compatible substitutes based on your application requirements.

Where can I buy the H21A4 from a trusted distributor?

You can buy the H21A4 from seekcomp, an authorized Fairchild Semiconductor distributor and professional H21A4 supplier. We stock genuine Fairchild Semiconductor H21A4 components sourced through verified supply channels. Submit a Request for Quote on this page to purchase the H21A4 with competitive pricing and worldwide delivery.

How do I get the H21A4 price and request a quote?

To get the current H21A4 price, submit a Request for Quote (RFQ) on this page. seekcomp provides competitive Fairchild Semiconductor H21A4 pricing with volume discounts available for bulk orders. Our team will respond with a detailed H21A4 quote — including unit price, lead time, and shipping options — within 24 hours.

How can I get the H21A4 datasheet and specifications?

For the H21A4 PDF datasheet and full technical specifications, contact seekcomp directly. Our team can provide Fairchild Semiconductor H21A4 application notes, cross-reference data, and mechanical drawings to support your design and procurement process.

Is the H21A4 in stock? What is the lead time and shipping?

Yes, the Fairchild Semiconductor H21A4 is currently in stock at seekcomp and available for immediate shipment worldwide. For in-stock H21A4 orders, we offer same-day or next-day dispatch. Lead time and exact H21A4 shipping details will be confirmed in your quote. We ship to 200+ countries via DHL, FedEx, and UPS.