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TIP29A-S Equivalent & Substitute Parts Reference
Part Overview
The TIP29A-S is an NPN bipolar junction transistor (BJT) manufactured by Bourns Inc., categorized under "Transistors, Bipolar (BJT)". It features a maximum collector current of 1 A, collector-emitter breakdown voltage of 60 V, and is housed in a standard TO-220-3 through-hole package. The device is RoHS3 compliant and has a maximum power dissipation of 2 W. The product status is listed as "Obsolete", making it necessary to identify equivalent or substitute components to maintain supply chain continuity and comply with design requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TIP29A-S |
| Transistor Type | NPN |
| Current - Collector (Ic) (Max) | 1 A |
| Voltage - Collector Emitter Breakdown (Max) | 60 V |
| Vce Saturation (Max) @ Ib, Ic | 700mV @ 125mA, 1A |
| Current - Collector Cutoff (Max) | 300µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 15 @ 1A, 4V |
| Power - Max | 2 W |
| Operating Temperature | -65°C ~ 150°C (TJ) |
| Package / Case | TO-220-3 |
| Mounting Type | Through Hole |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute part selection is based on equivalence in the following key parameters: transistor type (NPN), collector current (1 A max), collector-emitter breakdown voltage (60 V max), Vce saturation, collector cutoff current, DC current gain at specified test conditions, maximum power dissipation (2 W), operating temperature range, TO-220-3 through-hole package, and RoHS3 compliance. Only parts matching or exceeding these parameters and with explicit data provided are considered suitable BJT transistor substitutions within the same category.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Transistor Type | Current - Collector (Ic) (Max) | Voltage - Collector Emitter Breakdown (Max) | Vce Saturation (Max) @ Ib, Ic | Current - Collector Cutoff (Max) | DC Current Gain (hFE) (Min) @ Ic, Vce | Power - Max | Operating Temperature | Package / Case | Mounting Type | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TIP29A-S | Bourns Inc. | NPN | 1 A | 60 V | 700mV @ 125mA, 1A | 300µA | 15 @ 1A, 4V | 2 W | -65°C ~ 150°C (TJ) | TO-220-3 | Through Hole | ROHS3 Compliant |
| TIP29A | Solid State Inc. | NPN | - | - | - | - | - | - | - | TO-220-3 | Through Hole | ROHS3 Compliant |
| TIP29AG | onsemi | NPN | 1 A | 60 V | 700mV @ 125mA, 1A | 300µA | 15 @ 1A, 4V | 2 W | -65°C ~ 150°C (TJ) | TO-220-3 | Through Hole | ROHS3 Compliant |
Engineering Selection Recommendations
TIP29AG from onsemi matches the TIP29A-S in collector current, collector-emitter voltage, Vce saturation, collector cutoff current, DC current gain, power dissipation, operating temperature, TO-220-3 package, through-hole mounting, and RoHS3 compliance. The TIP29A from Solid State Inc. satisfies package type, mounting, and RoHS status based on the available data. Absence of explicit electrical parameter values for the TIP29A requires limiting interchangeability judgment strictly to the provided parameters.
Frequently Asked Questions (FAQ)
Q1: What are the key criteria for selecting a substitute for TIP29A-S?
A1: Substitute BJTs must be NPN type, have equal or greater collector current (1 A max), collector-emitter breakdown voltage (60 V max), matching Vce saturation, collector cutoff current, minimum DC current gain, power dissipation, operating temperature range, and TO-220-3 through-hole package as per provided documentation.
Q2: Are TIP29AG and TIP29A functionally identical to TIP29A-S?
A2: TIP29AG from onsemi matches all provided key parameters, including electrical ratings, package type, and compliance. TIP29A from Solid State Inc. matches in transistor type, package, mounting, and RoHS compliance, but lacks explicit electrical parameter data for further comparison.
Q3: Do all substitute parts have the same package and mounting?
A3: All substitute parts, including TIP29A-S, TIP29A, and TIP29AG, use the TO-220-3 through-hole package, ensuring compatibility in mechanical mounting and footprint.
Q4: Is there any variation in environmental or compliance status among substitutes?
A4: TIP29A-S, TIP29AG, and TIP29A are listed as RoHS3 compliant. All designated substitutes fulfill the provided compliance data.
Q5: Why is substitution necessary for TIP29A-S?
A5: The TIP29A-S is marked as "Obsolete," necessitating replacement with suitable equivalents that fulfill the original electrical, mechanical, and compliance parameters for ongoing engineering and production requirements.
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