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IS121 is out of stock and can be placed on backorder.
Available Substitutes:
Parametric Equivalent
Parametric Equivalent
Parametric Equivalent
Parametric Equivalent
Parametric Equivalent
Parametric Equivalent
Parametric Equivalent
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IS121 | |
|---|---|
DigiKey Part Number | 58-IS121TR-ND - Tape & Reel (TR) 58-IS121CT-ND - Cut Tape (CT) 58-IS121DKR-ND - Digi-Reel® |
Manufacturer | |
Manufacturer Part Number | IS121 |
Description | OPTOISO 3.75KV 1CH TRANS 4-SMD |
Manufacturer Standard Lead Time | 4 Weeks |
Customer Reference | |
Detailed Description | Optoisolator Transistor Output 3750Vrms 1 Channel 4-SMD |
Datasheet | Datasheet |
Product Attributes
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Category | Output Type Transistor |
Manufacturer Isocom Components 2004 LTD | Voltage - Output (Max) 80V |
Series | Current - Output / Channel 50mA |
Packaging Tape & Reel (TR) Cut Tape (CT) Digi-Reel® | Voltage - Forward (Vf) (Typ) 1.2V |
Part Status Active | Current - DC Forward (If) (Max) 50 mA |
Number of Channels 1 | Vce Saturation (Max) 200mV |
Voltage - Isolation 3750Vrms | Operating Temperature -55°C ~ 100°C |
Current Transfer Ratio (Min) 50% @ 5mA | Mounting Type Surface Mount |
Current Transfer Ratio (Max) 600% @ 5mA | Package / Case 4-SMD, Gull Wing |
Rise / Fall Time (Typ) 4µs, 3µs | Supplier Device Package 4-SMD |
Input Type DC |
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Substitutes (13)
| Part Number | Manufacturer | Quantity Available | DigiKey Part Number | Unit Price | Substitute Type |
|---|---|---|---|---|---|
| IS181 | Isocom Components 2004 LTD | 0 | 58-IS181TR-ND | $0.45000 | Parametric Equivalent |
| IS2701-1 | Isocom Components 2004 LTD | 0 | IS2701-1TR-ND | $0.58000 | Parametric Equivalent |
| IS357 | Isocom Components 2004 LTD | 0 | IS357TR-ND | $0.44000 | Parametric Equivalent |
| LTV-356T | Lite-On Inc. | 0 | 160-1337-2-ND | $0.32000 | Parametric Equivalent |
| LTV356T-V | Lite-On Inc. | 0 | 160-LTV356T-VTR-ND | $0.00000 | Parametric Equivalent |
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In-Stock: 0
3,000 estimated in stock on 16-Nov-2026
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Quantity
All prices are in USD
Cut Tape (CT) & Digi-Reel®
| Quantity | Unit Price | Ext Price |
|---|---|---|
| 1 | $0.45000 | $0.45 |
| 10 | $0.31100 | $3.11 |
| 100 | $0.22230 | $22.23 |
| 500 | $0.18226 | $91.13 |
| 1,000 | $0.16908 | $169.08 |
Tape & Reel (TR)
| Quantity | Unit Price | Ext Price |
|---|---|---|
| 3,000 | $0.15210 | $456.30 |
| 6,000 | $0.14345 | $860.70 |
| 9,000 | $0.13900 | $1,251.00 |
| 15,000 | $0.13399 | $2,009.85 |
| 21,000 | $0.13100 | $2,751.00 |
| 30,000 | $0.12809 | $3,842.70 |
| 75,000 | $0.12167 | $9,125.25 |
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.
