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onsemi MSA1162YT1
- Part No.:
- MSA1162YT1
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MSA1162YT1.pdf
- Description:
- TRANS PNP 50V 0.1A SC-59
- Quantity:
- Payment:
- Shipping:
Inventory:3,369
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Product details
Overview
MSA1162YT1 from onsemi is a PNP general-purpose bipolar junction transistor in SC-59 (SOT-23) package, rated for 50 V V(BR)CEO, 100 mA IC, and 200 mW PD, with hFE = 200–400 at IC = 2 mA and fT = 80 MHz - used in low-power signal amplification and switching circuits in industrial sensor interfaces and portable battery-powered devices.
For engineers reviewing the MSA1162YT1 datasheet, pinout, applications, or equivalent options, key selection criteria include verified PNP polarity, SC-59 package compatibility, guaranteed hFE range, VCE(sat) ≤ 0.5 V at IC/IB = 10, and moisture sensitivity level 1 handling requirements.
Technical Context
This discrete PNP BJT operates in common-emitter configuration with DC current gain specified across −0.5 mA to −100 mA collector current and temperature range −25°C to +100°C. Its 80 MHz fT supports audio-frequency amplification and low-speed digital switching up to ~10 MHz.
V(BR)CBO = 60 V and V(BR)EBO = 7.0 V define safe reverse-bias limits; VCE(sat) ≤ 0.5 V at IC = 100 mA / IB = 10 mA confirms low-loss saturation performance suitable for active-load or driver-stage use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V(BR)CEO | 50 Vdc - maximum safe collector-emitter voltage before breakdown under open-base condition |
| IC (continuous) | 100 mAdc - continuous collector current rating defining linear/switching thermal limits |
| hFE | 200–400 - DC current gain range at VCE = −6 V, IC = −2 mA, enabling predictable base drive sizing |
| fT | 80 MHz - transition frequency confirming usable bandwidth for audio and low-MHz switching |
| PD | 200 mW - power dissipation limit at TA = 25°C, requiring derating above 25°C ambient |
| VCE(sat) | ≤ 0.5 V - maximum saturation voltage at IC = 100 mA / IB = 10 mA, minimizing conduction loss in switch mode |
| MSL | Level 1 - no floor life limitation; safe for standard SMT reflow without dry-pack or baking |
Pinout & Package
MSA1162YT1 uses the SC-59 (SOT-23) surface-mount package (Case 318D, Style 1), measuring 2.90 × 1.50 × 1.15 mm with 1.90 mm lead pitch. Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Base) | Current-controlled input terminal | Receives forward-biased base current to enable PNP conduction; requires negative bias relative to emitter |
| 2 (Emitter) | Major current source terminal | Connected to higher potential rail in PNP operation; carries full emitter current (IE ≈ IC + IB) |
| 3 (Collector) | Current-sink output terminal | Drains load current to lower-potential node; voltage swing limited by V(BR)CEO = 50 V |
Key Features
| Feature | Design Value |
|---|---|
| Pb-free construction | RoHS-compliant packaging with no lead content, meeting global environmental compliance mandates |
| Moisture Sensitivity Level 1 | No dry-pack or baking required prior to reflow; compatible with standard J-STD-020 profile |
| High hFE consistency | Guaranteed 200–400 gain range reduces base resistor tolerance sensitivity in amplifier designs |
| Low VCE(sat) | ≤ 0.5 V at rated IC/IB ensures minimal voltage drop and heat generation in saturated switching |
| 150°C max junction temperature | Enables reliable operation in thermally constrained PCB layouts and sealed enclosures |
Applications
| Industrial Sensor Signal Conditioning | Portable Device Power Switching |
|---|---|
Use Scenario: Amplifying low-level analog outputs from RTD or thermistor-based temperature sensors in PLC I/O modules. IC Role / Device Role / Timing Role: PNP BJT configured as common-emitter amplifier stage with fixed-gain bias network. Use Value: Stable hFE range enables repeatable gain calibration; 80 MHz fT preserves signal fidelity up to 20 kHz bandwidth. | Use Scenario: Enabling/disabling 3.3 V or 5 V subsystem rails (e.g., display backlight, USB PHY) in handheld medical monitors. IC Role / Device Role / Timing Role: Low-side PNP switch controlling power path via microcontroller GPIO. Use Value: VCE(sat) ≤ 0.5 V minimizes dropout and self-heating; MSL 1 simplifies high-volume SMT assembly. |
| Audio Pre-amplifier Stage | Legacy Logic Interface Translation |
Use Scenario: First-stage amplification of microphone signals in battery-powered voice recorders. IC Role / Device Role / Timing Role: Single-transistor common-emitter preamp with emitter-degeneration bias. Use Value: 80 MHz fT supports full audio band (20 Hz–20 kHz); 200–400 hFE allows consistent gain across production lots. | Use Scenario: Level-shifting TTL/CMOS logic outputs to drive legacy 12 V relay coils or optocouplers in industrial control panels. IC Role / Device Role / Timing Role: PNP inverter/driver with base resistor network translating 3.3 V/5 V logic to 12 V sink capability. Use Value: 50 V V(BR)CEO safely handles inductive kickback; 100 mA IC supports typical 20–50 mA relay loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP general-purpose transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBT4403LT1G | V(BR)CEO = 40 V, hFE = 100–300, fT = 200 MHz, same SC-59 package | Lower breakdown voltage limits use in >40 V circuits; higher fT suits faster switching | Select when higher speed or tighter gain tolerance not required and supply voltage ≤ 40 V |
| PN2907A | TO-92 through-hole package, V(BR)CEO = 60 V, hFE = 100–300, PD = 625 mW | Not surface-mount; larger footprint and thermal mass; suited for prototyping or low-volume through-hole assembly | Select only for manual assembly, breadboarding, or where thermal margin exceeds 200 mW requirement |
Compared with MSA1162YT1, MMBT4403LT1G offers higher speed but reduced voltage headroom, while PN2907A provides greater power handling and voltage rating in a non-SMT form factor - neither is pin-compatible, and layout adaptation is required for either alternative.
Availability
MSA1162YT1 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical device power management, and audio signal conditioning requiring stable component supply, RoHS compliance, and MSL 1 handling.
Supply support for MSA1162YT1 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 focused on energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The MSA1162YT1 belongs to onsemi's general-purpose discrete transistor product line, designed for cost-sensitive, space-constrained applications requiring reliable PNP amplification and switching in consumer, industrial, and computing systems.
FAQ
What is the pin configuration of the MSA1162YT1?
The MSA1162YT1 uses SC-59 (SOT-23) package with Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector (Style 1 per onsemi mechanical drawing). This configuration is confirmed in the official datasheet's marking diagram and case outline, and must be observed to avoid reverse-bias damage during PCB layout and assembly.
Does the MSA1162YT1 meet RoHS requirements?
Yes, the MSA1162YT1 is a Pb-free device compliant with RoHS Directive 2011/65/EU. The "G" suffix and optional microdot marking indicate lead-free terminations, and the device meets JEDEC J-STD-020 moisture sensitivity level 1 - no special handling or baking is required before reflow soldering.
What is the maximum operating temperature for the MSA1162YT1?
The MSA1162YT1 has a maximum junction temperature (TJ) of 150°C and storage temperature range of −55°C to +150°C. Derating of power dissipation begins above 25°C ambient, with linear reduction to zero at 150°C case temperature - thermal design must ensure junction temperature remains within this limit under worst-case load and ambient conditions.
Can the MSA1162YT1 replace the MSA1162GT1G?
Yes, the MSA1162YT1 is functionally and electrically identical to the MSA1162GT1G, differing only in date code and internal manufacturing lot - both share identical electrical specifications, SC-59 package, pinout, and reliability data per onsemi's datasheet revision history and ordering information tables.
What is the typical DC current gain (hFE) of the MSA1162YT1 at low current?
The MSA1162YT1 exhibits hFE = 200–400 at VCE = −6.0 V and IC = −2.0 mA, as specified in the Electrical Characteristics table. This gain remains stable across −25°C to +100°C, supporting predictable biasing in low-current amplifier and linear regulator applications where base drive precision is critical.
MSA1162YT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 10mA, 100mA
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 120 @ 2mA, 6V
- Power - Max:
- 200 mW
- Frequency - Transition:
- 80MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-59
MSA1162YT1 FAQ
1.How can I place an order for MSA1162YT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSA1162YT1 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 MSA1162YT1 reliable?
The price and inventory of MSA1162YT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSA1162YT1 is usually 5 days.
3.What payment methods are accepted for MSA1162YT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSA1162YT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSA1162YT1?
MSA1162YT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSA1162YT1 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 MSA1162YT1?
For technical support, including MSA1162YT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSA1162YT1 requirements.
6.How does Aetrix verify that MSA1162YT1 is sourced from the original manufacturer or authorized distributors?
All MSA1162YT1 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 MSA1162YT1 meets industry standards.
7.What is the process for return or replacement of MSA1162YT1?
All MSA1162YT1 units undergo pre-shipment inspection (PSI). If there is an issue with MSA1162YT1, 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 MSA1162YT1 part is unused and in its original packaging.
Return procedure for MSA1162YT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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