Z2SMB18 is out of stock and can be placed on backorder.
Available Substitutes:
Parametric Equivalent
Parametric Equivalent

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Z2SMB18 | |
|---|---|
DigiKey Part Number | 4878-Z2SMB18TR-ND - Tape & Reel (TR) 4878-Z2SMB18CT-ND - Cut Tape (CT) 4878-Z2SMB18DKR-ND - Digi-Reel® |
Manufacturer | |
Manufacturer Part Number | Z2SMB18 |
Description | DIODE ZENER 18V 2W DO214AA |
Manufacturer Standard Lead Time | 6 Weeks |
Customer Reference | |
Detailed Description | Zener Diode 18 V 2 W ±5% Surface Mount DO-214AA (SMB) |
Datasheet | Datasheet |
EDA/CAD Models | Z2SMB18 Models |
Product Attributes
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Category | Impedance (Max) (Zzt) 6 Ohms |
Mfr | Current - Reverse Leakage @ Vr 1 µA @ 13 V |
Packaging Tape & Reel (TR) Cut Tape (CT) Digi-Reel® | Operating Temperature -50°C ~ 150°C (TJ) |
Part Status Active | Mounting Type Surface Mount |
Voltage - Zener (Nom) (Vz) | Package / Case |
Tolerance ±5% | Supplier Device Package DO-214AA (SMB) |
Power - Max 2 W |
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Substitutes (3)
| Part Number | Manufacturer | Quantity Available | DigiKey Part Number | Unit Price | Substitute Type |
|---|---|---|---|---|---|
| Z2SMB18 | Diotec Semiconductor | 0 | 4878-Z2SMB18TR-ND | $0.50000 | Parametric Equivalent |
| 3SMBJ5931BQ-TP | MCC (Micro Commercial Components) | 0 | 353-3SMBJ5931BQ-TPTR-ND | $0.16737 | Parametric Equivalent |
| 1SMB3EZ18_R1_00001 | Panjit International Inc. | 0 | 3757-1SMB3EZ18_R1_00001TR-ND | $0.59000 | Parametric Equivalent |
In-Stock: 0
3,000 estimated in stock on 30-Nov-2026
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Quantity
All prices are in USD
Cut Tape (CT) & Digi-Reel®
| Quantity | Unit Price | Ext Price |
|---|---|---|
| 1 | $0.50000 | $0.50 |
| 10 | $0.32200 | $3.22 |
| 100 | $0.20600 | $20.60 |
| 500 | $0.18000 | $90.00 |
| 1,000 | $0.16200 | $162.00 |
Tape & Reel (TR)
| Quantity | Unit Price | Ext Price |
|---|---|---|
| 3,000 | $0.13700 | $411.00 |
| 6,000 | $0.12000 | $720.00 |
| 9,000 | $0.10838 | $975.42 |




