FZT689BTC Equivalent & Substitute Parts

Part Overview

The FZT689BTC is an NPN bipolar junction transistor (BJT) manufactured by Diodes Incorporated, designed for surface mount applications in the SOT-223-3 package. This component operates at a maximum collector current of 3 A, collector-emitter breakdown voltage of 20 V, and maximum power dissipation of 2 W, with a transition frequency of 150 MHz. The FZT689BTC is classified as obsolete, necessitating identification of active equivalent and substitute parts for new designs and ongoing production requirements.

Substiute Parts

FZT689BTC

Diodes IncorporatedIn Stock: 865FZT689BTC Datasheet

Current PartRFQ

DNLS320E-13

Diodes IncorporatedIn Stock: 42987DNLS320E-13 Datasheet

DirectRFQ

FZT689BTA

Diodes IncorporatedIn Stock: 58056FZT689BTA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FZT689BTC is determined by strict equivalence across the following critical parameters: transistor type (NPN), maximum collector current (3 A), collector-emitter breakdown voltage (20 V), saturation voltage characteristics (450mV @ 20mA, 3A), collector cutoff current (100nA), DC current gain (400 @ 2A, 2V), transition frequency (150MHz), operating temperature range (-55°C to 150°C), surface mount configuration, and SOT-223-3 package specification.

Substitute parts are grouped into two categories:

Direct Manufacturer Equivalent (Active Status): DNLS320E-13 maintains all electrical parameters identical to the FZT689BTC with the exception of maximum power dissipation (1 W versus 2 W). This part is manufactured by Diodes Incorporated and is in active production status.

Parametric Equivalent (Active Status): FZT689BTA is a direct parametric match to the FZT689BTC, sharing identical electrical specifications and maximum power dissipation (2 W). This part is also manufactured by Diodes Incorporated and is in active production status, differentiated only by packaging format (Cut Tape versus the original specification).

Parameter Comparison

Engineering Selection Recommendations

FZT689BTA is the primary substitute for the FZT689BTC. This part is manufactured by Diodes Incorporated and maintains active production status. All electrical parameters, power dissipation rating (2 W), and environmental specifications are identical to the FZT689BTC. The only distinction is packaging format (Cut Tape versus the original specification). REACH compliance status is unaffected, providing regulatory advantage over the original part. This substitute is suitable for direct replacement in all applications where the FZT689BTC was previously specified.

DNLS320E-13 is an alternative substitute manufactured by Diodes Incorporated with active production status. This part maintains electrical equivalence across all parameters except maximum power dissipation, which is rated at 1 W compared to the 2 W rating of the FZT689BTC. DNLS320E-13 is REACH unaffected and ROHS3 compliant. Selection of this part requires verification that circuit power dissipation requirements do not exceed 1 W under maximum operating conditions. This part is available in higher inventory quantities (42,900 pieces) compared to FZT689BTA (58,000 pieces).

Frequently Asked Questions (FAQ)

Q: Can FZT689BTA be used as a direct replacement for FZT689BTC?

A: Yes. FZT689BTA is a parametric equivalent with identical electrical specifications, including maximum collector current (3 A), collector-emitter breakdown voltage (20 V), saturation voltage (450mV @ 20mA, 3A), DC current gain (400 @ 2A, 2V), transition frequency (150MHz), and power dissipation (2 W). Both parts are housed in the SOT-223-3 package and operate across the same temperature range (-55°C to 150°C). The only difference is packaging format.

Q: What is the key difference between DNLS320E-13 and FZT689BTA?

A: The primary difference is maximum power dissipation. DNLS320E-13 is rated at 1 W maximum power dissipation, while FZT689BTA is rated at 2 W. All other electrical parameters are identical. Selection between these parts depends on circuit power dissipation requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. FZT689BTC, DNLS320E-13, and FZT689BTA are all ROHS3 compliant.

Q: What is the difference in REACH status between the main part and substitutes?

A: The FZT689BTC is REACH affected, while both DNLS320E-13 and FZT689BTA are REACH unaffected. For applications subject to REACH regulations, the substitute parts provide regulatory advantage.

Q: Are the substitute parts available in the same package as the FZT689BTC?

A: Yes. All parts use the SOT-223-3 package. However, packaging format differs: FZT689BTC was supplied in standard format, DNLS320E-13 is supplied in Tape & Reel (TR) format, and FZT689BTA is supplied in Cut Tape (CT) format. These format differences do not affect electrical compatibility or PCB assembly compatibility.

Q: What is the Moisture Sensitivity Level (MSL) for all parts?

A: All three parts have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

Q: Can DNLS320E-13 be used in high-power applications?

A: DNLS320E-13 is limited to 1 W maximum power dissipation. Applications requiring power dissipation above 1 W must use FZT689BTA or the original FZT689BTC, both rated at 2 W.