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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

onsemi 2SC4134S-TL-E

Name: 2SC4134S-TL-E
Brand: onsemi
SKU: 2SC4134S-TL-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SC4134S-TL-E

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: 2SC4134S-TL-E.pdf

Description:: TRANS NPN 100V 1A TP-FA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

2SC4134S-TL-E from onsemi is an NPN bipolar transistor optimized for switching applications, featuring 100 V V_CEO, 1 A continuous collector current, 0.1–0.4 V low V_CE(sat) at I_C = 400 mA / I_B = 40 mA, 120 MHz f_T, and housed in the slim TP-FA (SC-63/TO-252) surface-mount package. It serves as a compact, high-reliability switch in relay drivers, lamp drivers, and DC-DC power supply output stages.

For engineers reviewing the 2SC4134S-TL-E datasheet, pinout, applications, or equivalent options, key selection criteria include verified V_CE(sat) performance at 400 mA, h_FE rank S (100–200), switching time (t_on = 80 ns, t_f = 50 ns), thermal derating above 25°C ambient, and TP-FA land pattern compatibility with JEDEC SC-63 footprints.

Technical Context

The 2SC4134S-TL-E employs FBET and MBIT fabrication processes to achieve high breakdown voltage (V_(BR)CBO = 120 V) and fast switching (t_stg = 850 ns, t_f = 50 ns) while maintaining low saturation voltage. Its gain-bandwidth product of 120 MHz supports stable operation in medium-frequency switching circuits up to several hundred kHz.

Designed for surface-mount assembly, the TP-FA package features a 4-pin configuration with dual collectors (pins 2 and 4), enabling enhanced current handling and thermal dissipation (P_C = 10 W at T_C = 25°C). The device operates across –55°C to +150°C junction temperature range and meets Pb-free requirements per JESD97.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	100 V - Supports primary-side switching in offline AC-DC supplies up to 85–265 VAC input.
I_C (continuous)	1 A - Rated for sustained load switching in relay coils (≈70–150 Ω) and LED arrays (≤1 A).
V_CE(sat)	0.1–0.4 V @ I_C=400 mA/I_B=40 mA - Minimizes conduction loss and self-heating in thermally constrained PCB layouts.
f_T	120 MHz - Enables clean square-wave response in PWM-driven loads with rise/fall times under 100 ns.
h_FE Rank	S (100–200) - Ensures predictable base drive requirement (I_B ≈ 4–10 mA) for 400 mA collector switching.
Package	TP-FA (SC-63 / TO-252) - Surface-mount, 4-terminal, thermally enhanced footprint with dual collector pads.
t_on/t_f	80 ns / 50 ns - Reduces switching transition losses in 50–200 kHz DC-DC converters and solid-state relays.

Pinout & Package

2SC4134S-TL-E uses the TP-FA (SC-63/TO-252) package: 7.0 mm × 5.0 mm × 2.3 mm body, 4-terminal SMT outline with exposed thermal pad, JEDEC-compliant land pattern, and Pb-free finish.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input requiring ~4–10 mA drive for full saturation at 400 mA collector current.
2	Collector	Main high-side current path; electrically tied to pin 4 for parallel current sharing and thermal spreading.
3	Emitter	Reference node for switching loop; connects directly to ground plane or low-impedance return path.
4	Collector	Secondary collector terminal - must be connected to same net as pin 2 to maintain rated P_C and thermal performance.

Key Features

Feature	Design Value
Low V_CE(sat)	0.1–0.4 V enables ≤0.4 W conduction loss at 400 mA, reducing heatsink need in space-constrained designs.
Fast switching	80 ns turn-on and 50 ns fall time minimize overlap loss in hard-switched topologies like flyback and buck converters.
Dual-collector construction	Pins 2 and 4 provide redundant collector paths, improving current distribution and thermal resistance (R_θJC optimized for TP-FA).
High V_(BR)CBO	120 V rating provides 20% margin over 100 V V_CEO, enhancing robustness against voltage transients in inductive load switching.
Rank-S h_FE	Guaranteed 100–200 h_FE ensures consistent base drive design across production lots without recalibration.

Applications

Relay Driver Circuit	Lamp Driver Module
Use Scenario: Driving 12 V/24 V electromagnetic relays with coil resistance 70–150 Ω in industrial PLC I/O modules. IC Role / Device Role / Timing Role: High-current NPN switch providing low-loss, fast turn-off to suppress back-EMF-induced contact arcing. Use Value: 0.4 V max V_CE(sat) limits relay coil power loss to <160 mW, extending relay life and enabling smaller PCB area vs. higher-V_sat alternatives.	Use Scenario: Switching incandescent or halogen lamps (5–25 W) in automotive interior lighting and signage systems. IC Role / Device Role / Timing Role: Medium-power load switch controlling lamp current with minimal thermal rise during continuous duty cycles. Use Value: TP-FA package's 10 W thermal rating at T_C = 25°C allows direct mounting on copper pour without heatsink, simplifying mechanical design.
DC-DC Converter Output Stage	Power Supply Standby Switch
Use Scenario: Secondary-side synchronous rectification or primary-side switching in isolated 5–24 V output flyback converters. IC Role / Device Role / Timing Role: Fast-switching NPN transistor used in self-oscillating or PWM-controlled switching nodes. Use Value: 120 MHz f_T and 50 ns fall time support stable operation up to 200 kHz switching frequency with low gate drive overhead.	Use Scenario: Enabling/disabling auxiliary 5 V or 3.3 V standby rails in ATX and embedded power supplies. IC Role / Device Role / Timing Role: Low-leakage, high-V_CEO switch isolating standby circuitry during main power-off states. Use Value: ICBO ≤ 100 nA at V_CB = 100 V ensures negligible standby current draw, meeting Energy Star Level VI leakage requirements.

Relay Driver Circuit

Lamp Driver Module

Use Scenario: Driving 12 V/24 V electromagnetic relays with coil resistance 70–150 Ω in industrial PLC I/O modules.

IC Role / Device Role / Timing Role: High-current NPN switch providing low-loss, fast turn-off to suppress back-EMF-induced contact arcing.

Use Value: 0.4 V max V_CE(sat) limits relay coil power loss to <160 mW, extending relay life and enabling smaller PCB area vs. higher-V_sat alternatives.

Use Scenario: Switching incandescent or halogen lamps (5–25 W) in automotive interior lighting and signage systems.

IC Role / Device Role / Timing Role: Medium-power load switch controlling lamp current with minimal thermal rise during continuous duty cycles.

Use Value: TP-FA package's 10 W thermal rating at T_C = 25°C allows direct mounting on copper pour without heatsink, simplifying mechanical design.

DC-DC Converter Output Stage

Power Supply Standby Switch

Use Scenario: Secondary-side synchronous rectification or primary-side switching in isolated 5–24 V output flyback converters.

IC Role / Device Role / Timing Role: Fast-switching NPN transistor used in self-oscillating or PWM-controlled switching nodes.

Use Value: 120 MHz f_T and 50 ns fall time support stable operation up to 200 kHz switching frequency with low gate drive overhead.

Use Scenario: Enabling/disabling auxiliary 5 V or 3.3 V standby rails in ATX and embedded power supplies.

IC Role / Device Role / Timing Role: Low-leakage, high-V_CEO switch isolating standby circuitry during main power-off states.

Use Value: ICBO ≤ 100 nA at V_CB = 100 V ensures negligible standby current draw, meeting Energy Star Level VI leakage requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN switching transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MJD127G	TO-252 package, V_CEO = 100 V, I_C = 2 A, V_CE(sat) = 0.5 V @ 1 A - higher saturation voltage, higher current rating.	Higher I_C supports >1 A loads but requires larger base drive due to lower h_FE (20–70).	Select when higher peak current (2 A pulse) is required and 0.5 V V_CE(sat) is acceptable.
2SD1898	TO-252 package, V_CEO = 120 V, I_C = 1.5 A, V_CE(sat) = 0.35 V @ 500 mA - wider V_CEO margin, slightly higher V_CE(sat).	Optimized for audio output stages; less tightly binned h_FE (100–320) increases base drive variability.	Select when extended breakdown margin (120 V) is critical and h_FE variation can be accommodated in drive design.

Compared with MJD127G and 2SD1898, the 2SC4134S-TL-E offers tighter h_FE binning (Rank S), lower V_CE(sat), and faster switching - making it preferable for precision, low-loss, high-frequency switching where base drive stability and thermal efficiency are prioritized over raw current headroom.

Availability

2SC4134S-TL-E is available at Aetrix Electronics and suitable for relay drivers, lamp drivers, and DC-DC converter output stages requiring stable component supply, RoHS-compliant packaging, and consistent parametric performance across production batches.

Supply support for 2SC4134S-TL-E 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient silicon and power solutions for automotive, industrial, cloud, and IoT applications.

The 2SC4134 series belongs to onsemi's general-purpose bipolar transistor portfolio, engineered for reliable, low-saturation switching in cost-sensitive, thermally constrained power interface circuits.

FAQ

What is the maximum continuous collector current rating for the 2SC4134S-TL-E?

The 2SC4134S-TL-E is rated for 1 A continuous collector current (I_C) at T_A = 25°C. Derating is required above ambient temperatures - for example, at 75°C ambient, the usable I_C drops to approximately 0.6 A based on the PC–Ta curve in the datasheet. This rating assumes proper PCB copper area and no external heatsink.

Does the 2SC4134S-TL-E have a built-in base-emitter resistor?

No, the 2SC4134S-TL-E is a standard discrete NPN bipolar transistor without any integrated base-emitter resistors. It requires an external base current source (typically via a series resistor from a microcontroller GPIO or driver IC) to achieve saturation. This gives full design control over switching speed and drive strength.

What is the difference between 2SC4134S-TL-E and 2SC4134T-TL-E?

The 2SC4134S-TL-E and 2SC4134T-TL-E share identical electrical specifications and TP-FA packaging, differing only in h_FE binning: "S" denotes h_FE = 100–200, while "T" denotes h_FE = 200–400. Both are Pb-free, reel-packed (700 pcs/reel), and functionally interchangeable if the circuit accommodates the respective h_FE range.

Can the 2SC4134S-TL-E replace a TO-92 transistor in an existing design?

No - the 2SC4134S-TL-E uses the TP-FA (TO-252) surface-mount package, not through-hole TO-92. Direct replacement would require PCB redesign, new land pattern, and requalification of thermal and EMI performance. It is intended for new SMT-based designs prioritizing power density and automated assembly.

What is the recommended land pattern for the 2SC4134S-TL-E TP-FA package?

The recommended land pattern follows JEDEC MO-252 (SC-63) standards: 7.0 mm × 5.0 mm pad layout with thermal pad centered beneath the die, solder mask defined (SMD) pads, and minimum 0.5 mm solder paste stencil aperture for pins 1–4. onsemi provides exact dimensions in Outline Drawing No.2510-6/9 - critical for thermal reliability and solder joint integrity.

2SC4134S-TL-E Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 1 A

Voltage - Collector Emitter Breakdown (Max):: 100 V

Vce Saturation (Max) @ Ib, Ic:: 400mV @ 40mA, 400mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 140 @ 100mA, 5V

Power - Max:: 800 mW

Frequency - Transition:: 120MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TP-FA

2SC4134S-TL-E FAQ

1.How can I place an order for 2SC4134S-TL-E through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SC4134S-TL-E on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 2SC4134S-TL-E reliable?

The price and inventory of 2SC4134S-TL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SC4134S-TL-E is usually 5 days.

3.What payment methods are accepted for 2SC4134S-TL-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SC4134S-TL-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SC4134S-TL-E?

2SC4134S-TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SC4134S-TL-E order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 2SC4134S-TL-E?

For technical support, including 2SC4134S-TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SC4134S-TL-E requirements.

6.How does Aetrix verify that 2SC4134S-TL-E is sourced from the original manufacturer or authorized distributors?

All 2SC4134S-TL-E products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 2SC4134S-TL-E meets industry standards.

7.What is the process for return or replacement of 2SC4134S-TL-E?

All 2SC4134S-TL-E units undergo pre-shipment inspection (PSI). If there is an issue with 2SC4134S-TL-E, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 2SC4134S-TL-E part is unused and in its original packaging.

Return procedure for 2SC4134S-TL-E:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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