SMBJ18AAlternatives & Equivalent Parts
About SMBJ18A
SMBJ18A is a TVS Diode (Uni-directional) component manufactured by STMicroelectronics. It comes in a Other package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | SMBJ18ASource | CD74HC137E | MC14027BDG | SMBJ18A-TR |
|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Texas Instruments | ON Semiconductor | STMicroelectronics |
| Package Type | Other | Dual-In-Line Packages | Small Outline Packages | Other |
| Pin Count | 2 | 16 | 16 | 2 |
| Temperature Range | -55.0°C ~ 150.0°C | -55.0°C ~ 125.0°C | -55.0°C ~ 125.0°C | -55.0°C ~ 150.0°C |
| Price | $0.0472 | $0.2842 | $0.1141 | $0.0543 |
| Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | OBSOLETE | ACTIVE |
| Electrical Parameters | ||||
| Pbfree Code | No | Yes | Yes | — |
| YTEOL | 7 | 15 | 0 | 7 |
| Additional Feature | EXCELLENT CLAMPING CAPABILITY | ADDRESS LATCHES; 3 ENABLE INPUTS | — | — |
| Breakdown Voltage-Max | 22.1 V | — | — | — |
| Breakdown Voltage-Min | 20 V | — | — | 20 V |
| Breakdown Voltage-Nom | 21.05 V | — | — | 21.1 V |
| Clamping Voltage-Max | 29.2 V | — | — | 39.3 V |
| Configuration | SINGLE | — | — | SINGLE, 1 CHANNEL |
| Diode Element Material | SILICON | — | — | SILICON |
| Diode Type | TRANS VOLTAGE SUPPRESSOR DIODE | — | — | TRANS VOLTAGE SUPPRESSOR DIODE |
| Forward Voltage-Max (VF) | 3.5 V | — | — | — |
| JEDEC-95 Code | DO-214AA | — | — | DO-214AA |
| JESD-30 Code | R-PDSO-C2 | R-PDIP-T16 | R-PDSO-G16 | R-PDSO-C2 |
| JESD-609 Code | e3 | e4 | e3 | e3 |
| Non-rep Peak Rev Power Dis-Max | 600 W | — | — | 600 W |
| Number of Elements | 1 | — | — | 1 |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | IN-LINE | SMALL OUTLINE | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 | — | 260 | 260 |
| Polarity | UNIDIRECTIONAL | — | — | UNIDIRECTIONAL |
| Power Dissipation-Max | 5 W | — | — | — |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Reference Standard | IEC-61000-4-2, 4-4; UL RECOGNIZED | — | — | IEC-61000-4-2, 4-4, 4-5; MIL-STD-750; MIL-STD-883G |
| Rep Pk Reverse Voltage-Max | 18 V | — | — | 18 V |
| Reverse Current-Max | 1 µA | — | — | 0.2 µA |
| Reverse Test Voltage | 18 V | — | — | 18 V |
| Surface Mount | YES | NO | YES | YES |
| Technology | AVALANCHE | CMOS | CMOS | AVALANCHE |
| Terminal Finish | Matte Tin (Sn) | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) - annealed | Matte Tin (Sn) |
| Terminal Form | C BEND | THROUGH-HOLE | GULL WING | C BEND |
| Terminal Position | DUAL | DUAL | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 | — | 30 | 30 |
| Family | — | HC/UH | 4000/14000/40000 | — |
| Input Conditioning | — | LATCHED | — | — |
| Load Capacitance (CL) | — | 50 pF | 50 pF | — |
| Logic IC Type | — | 3-LINE TO 8-LINE DECODER | J-K FLIP-FLOP | — |
| Max I(ol) | — | 0.0052 A | — | — |
| Number of Bits | — | 8 | 2 | — |
| Number of Functions | — | 1 | 2 | — |
| Output Polarity | — | INVERTED | COMPLEMENTARY | — |
| Package Equivalence Code | — | DIP16,.3 | SOP16,.25 | — |
| Packing Method | — | TUBE | RAIL | — |
| Power Supply Current-Max (ICC) | — | 0.16 mA | — | — |
| Prop. Delay@Nom-Sup | — | 36 ns | 350 ns | — |
| Propagation Delay (tpd) | — | 270 ns | 350 ns | — |
| Supply Voltage-Max (Vsup) | — | 6 V | 18 V | — |
| Supply Voltage-Min (Vsup) | — | 2 V | 3 V | — |
| Supply Voltage-Nom (Vsup) | — | 4.5 V | 5 V | — |
| Temperature Grade | — | MILITARY | MILITARY | — |
| Terminal Pitch | — | 2.54 mm | 1.27 mm | — |
| ## CD74HC137E Alternates Showing results | — | Image | — | — |
| Manufacturer Package Code | — | — | 751B-05 | — |
| Factory Lead Time | — | — | 2 Days | 13 Weeks |
| Max Frequency@Nom-Sup | — | — | 1500000 Hz | — |
| Trigger Type | — | — | POSITIVE EDGE | — |
| fmax-Min | — | — | 6.5 MHz | — |
| Reach Compliance Code | — | — | — | Not Compliant |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 3 alternatives for SMBJ18A — response within 24 hours.
Quick Links
suggested
suggested
Trans Voltage Suppressor Diode, 600W, 18V V(RWM), Unidirectional, 1 Element, Silicon, DO-214AA
Why Look for Alternatives?
Finding alternatives for SMBJ18A is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating SMBJ18A replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to SMBJ18A?
Known equivalents for SMBJ18A include CD74HC137E, MC14027BDG, SMBJ18A-TR. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SMBJ18A?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify SMBJ18A alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.