DB4Alternatives & Equivalent Parts
About DB4
DB4 is a Diac component manufactured by STMicroelectronics. It comes in a Diodes, Axial Diameter Horizontal Mounting 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 | DB4Source | BTA20-600CWRG | BTA24-600CWRG | STTH6003CW | TL051CP | LTST-S220KGKT |
|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments | Lite-On |
| Package Type | Diodes, Axial Diameter Horizontal Mounting | Transistor Outline, Vertical | Transistor Outline, Vertical | Transistor Outline, Vertical | Dual-In-Line Packages | Other |
| Pin Count | 2 | 3 | 3 | 3 | 8 | 2 |
| Temperature Range | -40.0°C ~ 110.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | ~ 175.0°C | ~ 70.0°C | -30.0°C ~ 85.0°C |
| Price | $0.0564 | $0.5595 | $0.4234 | $1.7028 | $0.1703 | $0.0188 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||||
| Factory Lead Time | 11 Weeks | 15 Weeks | 15 Weeks | — | — | 18 Weeks |
| YTEOL | 5 | 6 | 6 | 5.87 | 15 | 7 |
| Breakover Voltage-Max | 45 V | — | — | — | — | — |
| Breakover Voltage-Min | 35 V | — | — | — | — | — |
| Case Connection | ISOLATED | ISOLATED | ISOLATED | ISOLATED | — | — |
| Configuration | SINGLE | SINGLE | SINGLE | COMMON CATHODE, 2 ELEMENTS | — | SINGLE |
| JEDEC-95 Code | DO-35 | TO-220AB | TO-220AB | TO-247 | — | — |
| JESD-30 Code | O-PALF-W2 | R-PSFM-T3 | R-PSFM-T3 | R-PSFM-T3 | R-PDIP-T8 | — |
| JESD-609 Code | e3 | e3 | e3 | e3 | e4 | e3 |
| Number of Elements | 1 | 1 | 1 | 2 | — | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — |
| Package Shape | ROUND | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | — |
| Package Style | LONG FORM | FLANGE MOUNT | FLANGE MOUNT | FLANGE MOUNT | IN-LINE | — |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | — |
| Surface Mount | NO | NO | NO | NO | NO | YES |
| Terminal Finish | Matte Tin (Sn) - annealed | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Nickel/Palladium/Gold (Ni/Pd/Au) | Tin (Sn) |
| Terminal Form | WIRE | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE | — |
| Terminal Position | AXIAL | SINGLE | SINGLE | SINGLE | DUAL | — |
| Trigger Device Type | DIAC | SNUBBERLESS TRIAC | SNUBBERLESS TRIAC | — | — | — |
| ## DB4 Alternates Showing results | Image | — | — | — | — | — |
| Critical Rate of Rise of Commutation Voltage-Min | — | 11 V/us | 13 V/us | — | — | — |
| Critical Rate of Rise of Off-State Voltage-Min | — | 250 V/us | 500 V/us | — | — | — |
| DC Gate Trigger Current-Max | — | 35 mA | 35 mA | — | — | — |
| DC Gate Trigger Voltage-Max | — | 1.5 V | 1.3 V | — | — | — |
| Holding Current-Max | — | 50 mA | 50 mA | — | — | — |
| RMS On-state Current-Max | — | 20 A | 25 A | — | — | — |
| Reference Standard | — | UL RECOGNIZED | UL RECOGNIZED | — | — | — |
| Repetitive Peak Off-state Leakage Current-Max | — | 10 µA | — | — | — | — |
| Repetitive Peak Off-state Voltage | — | 600 V | 600 V | — | — | — |
| ## BTA20-600CWRG Alternates Showing results | — | Image | — | — | — | — |
| Leakage Current-Max | — | — | 0.005 mA | — | — | — |
| Additional Feature | — | — | — | FREE WHEELING DIODE | — | IC COMPATIBLE, SIDE VIEW |
| Application | — | — | — | ULTRA FAST SOFT RECOVERY | — | — |
| Diode Element Material | — | — | — | SILICON | — | — |
| Diode Type | — | — | — | RECTIFIER DIODE | — | — |
| Forward Voltage-Max (VF) | — | — | — | 1.25 V | — | — |
| Non-rep Pk Forward Current-Max | — | — | — | 300 A | — | — |
| Number of Phases | — | — | — | 1 | — | — |
| Output Current-Max | — | — | — | 30 A | — | — |
| Rep Pk Reverse Voltage-Max | — | — | — | 300 V | — | — |
| Reverse Current-Max | — | — | — | 60 µA | — | — |
| Reverse Recovery Time-Max | — | — | — | 0.055 µs | — | — |
| Reverse Test Voltage | — | — | — | 300 V | — | — |
| Pbfree Code | — | — | — | — | Yes | Yes |
| Amplifier Type | — | — | — | — | OPERATIONAL AMPLIFIER | — |
| Architecture | — | — | — | — | VOLTAGE-FEEDBACK | — |
| Average Bias Current-Max (IIB) | — | — | — | — | 0.0002 µA | — |
| Bias Current-Max (IIB) @25C | — | — | — | — | 0.0002 µA | — |
| Common-mode Reject Ratio-Min | — | — | — | — | 75 dB | — |
| Common-mode Reject Ratio-Nom | — | — | — | — | 93 dB | — |
| Frequency Compensation | — | — | — | — | YES | — |
| Input Offset Current-Max (IIO) | — | — | — | — | 0.0001 µA | — |
| Input Offset Voltage-Max | — | — | — | — | 1500 µV | — |
| Low-Bias | — | — | — | — | YES | — |
| Low-Offset | — | — | — | — | NO | — |
| Micropower | — | — | — | — | NO | — |
| Neg Supply Voltage Limit-Max | — | — | — | — | -18 V | — |
| Neg Supply Voltage-Nom (Vsup) | — | — | — | — | -5 V | — |
| Number of Functions | — | — | — | — | 1 | 1 |
| Package Equivalence Code | — | — | — | — | DIP8,.3 | — |
| Packing Method | — | — | — | — | TUBE | TR, 7 INCH |
| Power | — | — | — | — | NO | — |
| Programmable Power | — | — | — | — | NO | — |
| Slew Rate-Min | — | — | — | — | 11 V/us | — |
| Slew Rate-Nom | — | — | — | — | 20 V/us | — |
| Subcategory | — | — | — | — | Operational Amplifier | — |
| Supply Current-Max | — | — | — | — | 3.2 mA | — |
| Supply Voltage Limit-Max | — | — | — | — | 18 V | — |
| Supply Voltage-Nom (Vsup) | — | — | — | — | 5 V | — |
| Technology | — | — | — | — | BIPOLAR | — |
| Temperature Grade | — | — | — | — | COMMERCIAL | — |
| Terminal Pitch | — | — | — | — | 2.54 mm | 2.5 mm |
| Unity Gain BW-Nom | — | — | — | — | 3300 | — |
| Voltage Gain-Min | — | — | — | — | 50000 | — |
| Wideband | — | — | — | — | NO | — |
| ## TL051CP Alternates Showing results | — | — | — | — | Image | — |
| Color | — | — | — | — | — | GREEN |
| Forward Current-Max | — | — | — | — | — | 0.03 A |
| Lens Type | — | — | — | — | — | WATER CLEAR |
| Luminous Intensity-Nom | — | — | — | — | — | 35.0 mcd |
| Mounting Feature | — | — | — | — | — | SURFACE MOUNT |
| Optoelectronic Device Type | — | — | — | — | — | SINGLE COLOR LED |
| Overall Height | — | — | — | — | — | 0.6 mm |
| Peak Wavelength | — | — | — | — | — | 574 nm |
| Shape | — | — | — | — | — | RECTANGULAR |
| Size | — | — | — | — | — | 1.7 mm |
| Viewing Angle | — | — | — | — | — | 130 deg |
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 5 alternatives for DB4 — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for DB4 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 DB4 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.
Can't Find What You Need?
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FAQ
What is equivalent to DB4?
Known equivalents for DB4 include BTA20-600CWRG, BTA24-600CWRG, STTH6003CW. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of DB4?
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 DB4 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.