AI insight queued
Voltkit is preparing product insight and cross-reference information for this part.
H21A1
Click to open full image.
Part #:H21A1
Manufacturer:Isocom Components
Package:DIP-4
Product Type:Photointerrupters - Slot Type - Transistor Output
RoHS: 
Specifications (Specs)
| Manufacturer | Isocom Components |
| Part Number | H21A1 |
| Product Type | Photointerrupters - Slot Type - Transistor Output |
| RoHS | Yes |
| Package / Case | DIP-4 |
| Stock | 0 |
| MOQ | 1 |
| Order Multiple | 1 |
| Packaging | Bag-packed |
| Factory Pack Quantity | 750 |
Documents & Compliance
Datasheet (PDF)
RoHS:
Alternative Parts & Cross Reference
Cross-reference analysis queued Voltkit will check database-backed and AI-assisted alternatives without delaying this page.
Always verify package, pinout, electrical limits, and datasheets before approving a substitute.
Professional Semiconductor Sourcing
Extensive In-Stock InventoryImmediate stock visibility for active, legacy, and hard-to-find semiconductors.
Authorized Brand AccessVoltkit is an authorized distributor for selected semiconductor brands.
Quality & Traceability SupportRequest date-code review, product photos, traceability documents, or certificate support with your RFQ.
Dedicated Sourcing TeamGet support for target pricing, delivery schedules, BOM sourcing, and alternative-part verification.