onsemi BD13716S

Overview

BD13716S from Fairchild Semiconductor is an NPN epitaxial silicon transistor in TO-126 package, rated for 60 V V_CEO, 1.5 A continuous collector current, and 12.5 W collector dissipation at T_C = 25°C, used in medium-power linear amplification and switching applications such as audio output stages and power supply regulators.

For engineers reviewing the BD13716S datasheet, pinout, applications, or equivalent options, key selection criteria include V_CEO/V_CBO rating, h_FE classification (16), saturation voltage at 500 mA, thermal derating behavior, and complementary pairing with BD138.

Technical Context

This device operates as a medium-power bipolar junction transistor with fixed h_FE classification of 16 (100–250 at V_CE = 2 V, I_C = 150 mA), specified V_CE(sat) ≤ 0.5 V at I_C = 500 mA / I_B = 50 mA, and V_BE(on) ≈ 1 V under same conditions. It supports pulsed collector current up to 3.0 A.

Designed for linear and switching use, it features low leakage (I_CBO ≤ 0.1 µA at V_CB = 30 V) and wide operating junction temperature range (–55°C to +150°C), with safe operating area defined for DC and pulsed conditions per Figure 4.

Key Specifications

Pinout & Package

BD13716S is housed in a TO-126 plastic package with standard lead configuration: Pin 1 = Emitter, Pin 2 = Collector, Pin 3 = Base. The package provides mechanical robustness and thermal path via the metal tab (Collector-connected), suitable for PCB mounting with screw or clip heatsinking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN medium-power transistor applications.

Compared with BD13716S, BD137G offers identical performance with updated environmental compliance, while MJE13003 trades gain precision and linear SOA for higher voltage tolerance-making BD13716S preferable for audio and regulator applications demanding predictable h_FE and low-saturation loss.

Availability

BD13716S is available at Aetrix Electronics and suitable for audio amplifier output stages, linear voltage regulator pass elements, and DC motor interface circuits requiring stable component supply and long-term industrial availability.

Supply support for BD13716S includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Fairchild Semiconductor was a U.S.-based semiconductor company specializing in power discrete devices, analog ICs, and interface solutions before its acquisition by ON Semiconductor in 2016.

The BD135/137/139 family was designed for medium-power linear amplification and switching in cost-sensitive industrial and consumer equipment, emphasizing gain consistency, thermal reliability, and complementary PNP pairing.

FAQ

What is the h_FE classification of BD13716S and how is it verified?

The BD13716S has h_FE classification 16, meaning its DC current gain falls within 100–250 at V_CE = 2 V and I_C = 150 mA. This binning is confirmed in the "hFE3" row of the Electrical Characteristics table in the Fairchild BD135/137/139 datasheet Rev. A. Each BD13716S unit is tested and marked accordingly during final test.

Is BD13716S pin-compatible with BD137 or BD137G?

Yes, BD13716S is pin-compatible with BD137 and BD137G - all share identical TO-126 package outline, pin assignment (1=E, 2=C, 3=B), and mechanical dimensions. The "16S" suffix denotes the h_FE bin and date code; electrical and physical compatibility is maintained across these variants.

What is the maximum safe continuous collector current for BD13716S at 70°C case temperature?

At T_C = 70°C, BD13716S derates linearly from 12.5 W at 25°C. Using the 0.1 W/°C slope shown in Figure 5, power dissipation drops to 8.0 W. With V_CE(sat) ≈ 0.5 V, maximum continuous I_C is ~4 A in saturation - but practical linear operation limits I_C to ≤1.0 A to maintain junction temperature below 150°C. Always verify with actual layout thermal resistance.

Can BD13716S replace BD139 in a circuit?

BD13716S is not a direct replacement for BD139 due to lower voltage ratings: BD13716S has V_CEO = 60 V vs. BD139's 80 V, and V_CBO = 60 V vs. 80 V. Substituting BD13716S in a BD139-design risks breakdown under transient overvoltage. Use only if operating V_CE remains ≤50 V with margin.

Does BD13716S require a heatsink in typical linear amplifier use?

Yes, BD13716S requires a heatsink in linear amplifier use. At 1.5 A and V_CE = 5 V (typical quiescent drop), power dissipation exceeds 7 W - well above its 1.25 W ambient-rated limit. The TO-126 metal tab must be mounted to a heatsink with thermal interface material; refer to Figure 5 for derating curves and ensure R_θJC + R_θCS + R_θSA keeps T_J < 150°C.