Logo
Contact Us
Cookies Policy
Terms of Use
Privacy Policy
phone
Vivi (Sales)
phone
Ban (Sales)
phone
+86 755-2845-3125
RFQ List
  • open navigation menu
    • Logo
    • RFQ List
      • Manufacturers
      • Hot Products
      • RFQ
      • Blog
      • Tools
      • Sourcing Solutions
      • PCB/SMT
      • About Us
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    Certification badge
    CONTACT US
    Customer Support:
    +86 755-2845-3125
    Room 2709B, 5A Office Building, Longguang Jiuzuan, Hongshan, Longhua District, Shenzhen, China
    [email protected]
    Company
    • Blog
    • About Us
    • Contact Us
    Resources
    • Categories
    • Manufacturers
    • Tools
    • RFQ
    Quick link
    • Privacy Policy
    • Terms of Use
    • Cookies Policy
    • Refund & Return Policy
    • Shipping & Delivery Policy
    Payment
    • Payment method
    • Payment method
    • Payment method
    • Payment method
    Logistics
    • Logistics partner
    • Logistics partner
    • Logistics partner
    • Logistics partner

    © 2026 Copyright. All Rights Reserved. Made by ICAllIn

    Part number
    Part number
    1. Home/
    2. All Categories/
    3. Power/
    4. DC/DC Converters/
    5. PT79SR109S Rochester

    PT79SR109S [Rochester]

    PT79SR109S
    PT79SR109S

    Part No:

    PT79SR109S

    Category:

    DC/DC Converters

    Manufacturer:

    Rochester

    Description:

    PT79SR100 Series is a line of -1.5 Amp Negative Step-Down Integrated Switching Regulator.

    Datasheet:

    Product FAQ

    1. Is PT79SR109S available for RFQ?

    Yes. PT79SR109S by Rochester is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

    2. Why is there no fixed price for PT79SR109S?

    Pricing for PT79SR109S can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

    3. What are the key specifications of PT79SR109S?

    PT79SR109S is a Rochester DC/DC Converters with Absolute Operating Temperature Max: +85°C and Absolute Operating Temperature Min: -40°C. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for PT79SR109S?

    Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

    5. How soon can PT79SR109S be shipped?

    If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

    6. Can you suggest alternatives to PT79SR109S?

    Yes. If PT79SR109S is unavailable, obsolete, or does not meet your required lead time, we can help check similar Rochester DC/DC Converters parts or compatible alternatives.

    RFQ

    Part Number:

    PT79SR109S

    Manufacturer:

    Rochester

    Looking for Pricing? Contact us for volume pricing.

    IMPORTANT NOTICE

    Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

    Featured Product

    Stock Status:

    Available for RFQ

    Pricing:

    Request Volume Pricing

    Quote Response:

    Within 24 Hours

    Shipping:

    In-stock parts ship in 1–2 business days

    Specification

    Type
    Parameter
    Efficiency
    85%
    Line Regulation
    ±2.0%
    Switching Frequency
    0.95MHz ~ 1.05MHz
    Input Voltage
    -9V ~ -30V
    Load Regulation
    ±1.0%
    Output Current
    -0.1A ~ -1.5A
    Operating Temperature
    -40°C ~ +60°C
    Storage Temperature
    -40°C ~ +125°C
    RoHS Status
    RoHS Compliant
    Package
    SIPMOD
    Weight
    7.0Grams
    RoHS Status
    Absolute Operating Temperature Max
    +85°C
    Absolute Operating Temperature Min
    -40°C
    Mechanical Shock
    500G
    Mechanical Vibration
    5G
    Moisture Sensitivity Level (MSL)
    Level-1-215C-UNLIM
    Output Voltage Tolerance Max
    ±3.0%
    Output Voltage Tolerance Typ
    ±1.0%
    Ripple Noise Typ
    35mVpp
    Short Circuit Current
    -3.5A
    Temperature Coefficient Typ
    ±0.5mV/°C
    Thermal Resistance
    45°C/W
    Transient Response Typ
    100µSec

    Products Detail

    The PT79SR100 is a Negative Input/Negative Output 3-terminal Integrated Switching Regulator with self-contained inductor. It features short circuit protection, over-temperature protection, and laser-trimmed output voltage to industry standard values. Offers excellent line and load regulation, high efficiency >85%, and is ideal for RS232/Ethernet communications, ECL logic, and op-amp circuitry applications.

    Key Features

    • High Efficiency >85%
    • Self-Contained Inductor
    • Short Circuit Protection
    • Over-Temperature Protection
    • Laser-Trimmed Output Voltage
    • Excellent Line and Load Regulation
    • -1.5A Maximum Output Current

    Application scenarios

    • RS232 and Ethernet communications
    • ECL logic
    • op-amp circuitry

    Documents

    Datasheets:

    PT79SR109S-Texas-Instruments-datasheet-10256995.pdfPT79SR109S-Texas-Instruments-datasheet-148723.pdfPT79SR109S-Texas-Instruments-datasheet-3389.pdf
    Shipping & Warranty

    Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

    Unishop Global Export: 1-7 days, $40.00

    Guaranteed Delivery: Door-to-door in 30 days

    Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

    Feature

    • 30-Day Guarantee
      30-Day Guarantee
    • Fasted Delivery
      Fasted Delivery
    • Hassle-Free Returns
      Hassle-Free Returns
    • Secure payment method
      Secure payment method

    BEST SELL
    BQ27441DRZR-G1AG4

    BQ27441DRZR-G1AG4

    Texas Instruments

    BEST SELL
    ISO7721DR

    ISO7721DR

    Texas Instruments

    BEST SELL
    MT41K128M16JT-125 IT:KTR

    MT41K128M16JT-125 IT:KTR

    Unknown

    BEST SELL
    MTFC2GMDEA-0M WT A

    MTFC2GMDEA-0M WT A

    Micron

    BEST SELL
    CYBT-343026-EVAL

    CYBT-343026-EVAL

    Infineon

    BEST SELL
    TLP2361(TPL,E(T

    TLP2361(TPL,E(T

    TOSHIBA

    BEST SELL
    MPU-6000

    MPU-6000

    TDK

    BEST SELL
    MT25QU256ABA1EW7-0SIT

    MT25QU256ABA1EW7-0SIT

    Micron

    BEST SELL
    H9TQ64A8GTDCUR-KUM

    H9TQ64A8GTDCUR-KUM

    SK HYNIX

    BEST SELL
    IS43LQ32256A-062BLI

    IS43LQ32256A-062BLI

    ISSI

    Related Information
    • Part Number
      Manufacturer
      Stock Status
      Pricing
      RoHS/Datasheet
    • LP3963ES-2.5
      Rochester
      Available for RFQ
      Request Volume Pricing
      -
    • ISL6424ER
      Rochester
      Available for RFQ
      Request Volume Pricing
    • PT79SR152H
      Rochester
      Available for RFQ
      Request Volume Pricing
    • MAX629ESA
      Rochester
      Available for RFQ
      Request Volume Pricing
    • PT6502A
      Rochester
      Available for RFQ
      Request Volume Pricing
      -
    • ISL6556ACB
      Rochester
      Available for RFQ
      Request Volume Pricing
    • MIC29710-5.0BT
      Rochester
      Available for RFQ
      Request Volume Pricing
    • PT6654D
      Rochester
      Available for RFQ
      Request Volume Pricing
      -
    • UC3886N
      Rochester
      Available for RFQ
      Request Volume Pricing
    • 78ST205HC
      Rochester
      Available for RFQ
      Request Volume Pricing
      -

    PT6683D

    PT6683D

    Rochester

    78SR108VC

    78SR108VC

    Rochester

    ISL6413IR-T5K

    ISL6413IR-T5K

    Rochester

    PT6404D

    PT6404D

    Rochester

    PT5027A

    PT5027A

    Rochester

    PT4401N

    PT4401N

    Rochester

    PT5802N

    PT5802N

    Rochester

    78SR109VC

    78SR109VC

    Rochester

    PT6655D

    PT6655D

    Rochester

    PT6718C

    PT6718C

    Rochester

    AC Power Entry Modules(315)DC Power Connectors(33)Power Inverters(7299)AC Power Plugs & Receptacles(207)DC Power Cords(0)Power Condition(27401)Batteries(5298)Solar Panels & Solar Cells(7)Supercapacitors(0)Buffer Modules(892)

    No recently viewed products