IC Phoenix logo

Home ›  K  › K13 > KSR1104

KSR1104 from SAMSUNG

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

KSR1104

Manufacturer: SAMSUNG, FSC, KEC

NPN Epitaxial Silicon Transistor

Partnumber Manufacturer Quantity Availability
KSR1104 SAMSUNG, FSC, KEC 11923 In Stock

Description and Introduction

NPN Epitaxial Silicon Transistor Here are the factual details about part KSR1104 from the manufacturer KEC:

### **Specifications:**
1. **Type:** NPN Epitaxial Planar Transistor  
2. **Maximum Ratings:**  
   - Collector-Base Voltage (VCBO): 50V  
   - Collector-Emitter Voltage (VCEO): 50V  
   - Emitter-Base Voltage (VEBO): 5V  
   - Collector Current (IC): 150mA  
   - Total Power Dissipation (PT): 250mW (at Ta=25°C)  
   - Operating and Storage Temperature Range (Tj, Tstg): -55°C to +150°C  

3. **Electrical Characteristics:**  
   - DC Current Gain (hFE): 120~400 (at VCE=6V, IC=2mA)  
   - Collector-Emitter Saturation Voltage (VCE(sat)): 0.3V (max) (at IC=50mA, IB=5mA)  
   - Transition Frequency (fT): 250MHz (min)  

### **Descriptions:**  
- The KSR1104 is a high-frequency, low-noise NPN transistor designed for general-purpose amplification and switching applications.  
- It is packaged in a small SOT-23 surface-mount form factor.  

### **Features:**  
- High current gain (hFE) range for improved amplification.  
- Low saturation voltage for efficient switching.  
- Suitable for high-frequency applications due to its transition frequency (fT).  
- Compact SOT-23 package for space-saving PCB designs.  

For further details, refer to the official KEC datasheet.

Application Scenarios & Design Considerations

NPN Epitaxial Silicon Transistor

Alternative Part Number

  • 2N3904 --: Widely available general-purpose NPN transistor with similar small-signal switching characteristics, easy drop-in for most KSR1104 applications.
  • BC547 --: Standard NPN small-signal transistor with comparable current gain and voltage ratings, commonly used as a substitute in switching and amplifier circuits.
  • MMBT3904 --: SMD NPN transistor with electrical characteristics close to the KSR1104, suitable for space-constrained board replacements.
  • TL1105AF160Q --: Tactile switch with similar 6x6mm footprint and through-hole terminals, widely available and pin-compatible in most KSR1104 applications.
  • PTS645SM43SMTR92LFS --: 6x6mm tactile switch with comparable actuation force and travel, suitable drop-in replacement for general-purpose push-button use.
  • EVQ-P7A01P --: Compact tactile switch offering similar electrical ratings and mechanical characteristics, good second-source option when exact fit is flexible.
  • 2N7002 --: Widely available N-channel MOSFET in SOT-23, similar small-signal switching role and pinout, easy drop-in for general switching applications.
  • BSS138 --: Logic-level N-channel MOSFET in SOT-23 with comparable voltage/current ratings, commonly used as a KSR1104 substitute in switching circuits.
  • MMBF170 --: SOT-23 N-channel MOSFET with similar small-signal switching characteristics and pin configuration, suitable as a functional replacement.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips