My Inquiry
My Account
onsemi SMUN2130T1
- Part No.:
- SMUN2130T1
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- -
- Datasheet:
-
SMUN2130T1.pdf
- Description:
- SMALL SIGNAL BIPOLAR TRANSISTOR
- Quantity:
- Payment:
- Shipping:
Inventory:87,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMUN2130T1 from onsemi is a PNP silicon bias resistor transistor (BRT) in SC-59 package, integrating a transistor with monolithic base-emitter and series base resistors (R1 = 1.0 kΩ, R2 = 1.0 kΩ). It delivers VCEO = 50 V, IC = 100 mA, VCE(sat) = 0.25 V at IC = 10 mA / IB = 0.3 mA, and hFE = 3.0–5.0, used for low-power logic-level switching in automotive body control modules.
For engineers reviewing the SMUN2130T1 datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, SC-59 terminal mapping, real-world use scenarios, and two validated alternative parts for discrete transistor replacement in space-constrained PCB designs.
Technical Context
The SMUN2130T1 implements a PNP bipolar junction transistor with integrated R1–R2 bias network, eliminating external base resistors. Its fixed resistor ratio R1/R2 = 1.7 enables predictable saturation behavior under defined input voltage conditions (e.g., VB = 0.050 V for VOH testing).
Designed for surface-mount low-power switching, it operates within −55 °C to +150 °C junction temperature range and meets AEC-Q101 qualification. Thermal resistance RJA is 540 °C/W (FR-4 min pad) or 370 °C/W (1.0 × 1.0 inch pad), supporting reliable operation in thermally constrained automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; defines safe operating range in 12 V automotive supply circuits with transient margin. |
| IC | 100 mA - Continuous collector current rating; supports driving small relays, LEDs, or MOSFET gates without external current limiting. |
| VCE(sat) | 0.25 V at IC = 10 mA / IB = 0.3 mA - Low saturation voltage minimizes power loss and heat generation in high-duty-cycle switching. |
| hFE | 3.0–5.0 - Low DC current gain optimized for digital switching (not linear amplification); ensures robust turn-on with minimal base drive current. |
| R1 / R2 | 1.0 kΩ / 1.0 kΩ - Integrated bias resistors eliminate two external components; R1/R2 = 1.7 enables stable logic-compatible input threshold behavior. |
| PD | 230 mW at TA = 25 °C - Power dissipation limit determines maximum continuous switching frequency and thermal pad requirements. |
| TJ | −55 °C to +150 °C - Extended junction temperature range supports under-hood automotive placement and industrial ambient conditions. |
Pinout & Package
SMUN2130T1 uses the SC-59 (Case 318D) surface-mount plastic package with modified gull-wing leads for thermal stress absorption during reflow or wave soldering. Dimensions: 2.9 mm × 1.5 mm × 1.15 mm (L × W × H), moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN 1 | Emitter | Ground reference terminal; connects to system GND or low-side return path in PNP switch configuration. |
| PIN 2 | Base | Input control node; accepts logic-level signals (e.g., MCU GPIO) through internal R1 resistor to bias the transistor. |
| PIN 3 | Collector | Output/switched load terminal; sinks current from VCC-referenced loads such as indicator LEDs or sensor pull-ups. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Monolithic R1 (1.0 kΩ) and R2 (1.0 kΩ) replace two discrete resistors, reducing BOM count and layout area by ≥2 components per channel. |
| AEC-Q101 qualification | Validated for automotive applications including body electronics, lighting controls, and HVAC actuators requiring long-term reliability. |
| SC-59 package compatibility | Supports standard SMT reflow profiles and wave soldering; gull-wing leads prevent die cracking during thermal cycling. |
| Low VCE(sat) | 0.25 V enables <1 mW power loss at 10 mA load current, critical for battery-powered modules and thermally dense PCBs. |
Applications
| Automotive Door Module | Industrial Sensor Interface |
|---|---|
Use Scenario: Controlling LED status indicators and small solenoid locks in door control units using 3.3 V or 5 V microcontroller outputs. IC Role / Device Role / Timing Role: PNP BRT acts as a low-side switch driver, sinking current from 12 V supply-referenced loads while isolating MCU I/O pins. Use Value: Eliminates need for discrete base resistor and pull-down, reducing component count and improving ESD robustness (Class 1 HBM) in vehicle assembly environments. |
Use Scenario: Level-shifting and buffering analog sensor enable signals in programmable logic controllers with mixed 3.3 V/5 V/12 V domains. IC Role / Device Role / Timing Role: Digital switch translating logic-high enable commands into 12 V active-low outputs for analog front-end power gating. Use Value: Fixed R1/R2 ratio ensures consistent turn-on threshold across temperature, avoiding false triggering in noisy factory-floor environments. |
| Consumer Appliance Control | Medical Diagnostic Equipment |
Use Scenario: Driving buzzer alerts and display backlight segments in smart home appliances where board space is limited and cost-per-channel matters. IC Role / Device Role / Timing Role: Single-device logic-level translator replacing transistor + two resistors, simplifying schematic capture and routing. Use Value: SC-59 footprint occupies <1.5 mm², enabling dense integration in compact white-goods control boards without sacrificing thermal performance. |
Use Scenario: Isolating microcontroller GPIOs from higher-voltage subsystems (e.g., pump drivers, valve actuators) in portable diagnostic devices. IC Role / Device Role / Timing Role: Safe, low-power interface element providing galvanic separation between digital logic and 5–24 V peripheral power rails. Use Value: Moisture Sensitivity Level 1 allows indefinite dry-pack storage and eliminates bake requirements prior to assembly, accelerating medical device production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP bias resistor transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MUN2130T1G | Pb-free variant of same die and SC-59 package; identical R1/R2 (1.0 kΩ/1.0 kΩ), VCEO, IC, and hFE specs. | No functional difference; selected when RoHS compliance is mandatory and lead-free soldering process is used. | Drop-in replacement if Pb-free finish required; verify solder paste compatibility with matte tin plating. |
| SMUN2131T1 | R1 = 2.2 kΩ, R2 = 2.2 kΩ, hFE = 8.0–15, VCE(sat) = 0.25 V - higher input impedance and gain, but same package and voltage/current ratings. | Better suited for higher-impedance MCU outputs or noise-immune applications where reduced base current draw is critical. | Choose when lower base drive current (<50% of SMUN2130T1) is needed without changing PCB layout. |
Compared with SMUN2130T1, MUN2130T1G offers identical performance with RoHS-compliant termination, while SMUN2131T1 provides higher hFE and input resistance for improved noise margin and reduced MCU loading-both retain SC-59 footprint and 50 V/100 mA ratings.
Availability
SMUN2130T1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and consumer appliance control systems requiring stable component supply and AEC-Q101 qualified discretes.
Supply support for SMUN2130T1 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 power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The MUN21xxT1/SMUN21xxT1 series was developed to simplify discrete logic-level switching in space- and cost-sensitive applications, targeting automotive body electronics, IoT edge nodes, and industrial control panels where reliability and qualification matter.
FAQ
What is the maximum operating temperature for SMUN2130T1?
The SMUN2130T1 has a junction temperature range of −55 °C to +150 °C, with thermal resistance RJA = 540 °C/W on FR-4 minimum pad. This allows reliable operation in under-hood automotive locations and industrial enclosures without forced cooling, provided power dissipation stays within derated limits above 25 °C ambient.
Does SMUN2130T1 require external base resistors?
No, SMUN2130T1 integrates monolithic R1 = 1.0 kΩ and R2 = 1.0 kΩ bias resistors internally. This eliminates the need for external base resistors in typical digital switching configurations, reducing component count, PCB area, and potential layout errors associated with discrete bias networks.
Is SMUN2130T1 pin-compatible with other MUN21xxT1 series devices?
Yes, all MUN21xxT1 and SMUN21xxT1 variants-including SMUN2130T1-use the identical SC-59 (Case 318D) package with PIN 1 = Emitter, PIN 2 = Base, PIN 3 = Collector. This enables direct PCB footprint reuse across the family when substituting for different R1/R2 values or hFE grades.
What is the typical VCE(sat) of SMUN2130T1 under standard test conditions?
The SMUN2130T1 exhibits VCE(sat) ≤ 0.25 V when tested at IC = 10 mA and IB = 0.3 mA, confirming efficient saturation with minimal conduction loss. This value remains stable across −25 °C to +75 °C per typical characterization curves in the official datasheet.
How does SMUN2130T1 differ from SMUN2130T1G?
SMUN2130T1G is the Pb-free version of SMUN2130T1, sharing identical electrical specifications, SC-59 package dimensions, and marking code "6G". The only difference is the matte tin lead finish on SMUN2130T1G, required for RoHS compliance and compatible with lead-free reflow processes.
SMUN2130T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Power - Max:
- -
- Frequency - Transition:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SMUN2130T1 FAQ
1.How can I place an order for SMUN2130T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMUN2130T1 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 SMUN2130T1 reliable?
The price and inventory of SMUN2130T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMUN2130T1 is usually 5 days.
3.What payment methods are accepted for SMUN2130T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMUN2130T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMUN2130T1?
SMUN2130T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMUN2130T1 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 SMUN2130T1?
For technical support, including SMUN2130T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMUN2130T1 requirements.
6.How does Aetrix verify that SMUN2130T1 is sourced from the original manufacturer or authorized distributors?
All SMUN2130T1 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 SMUN2130T1 meets industry standards.
7.What is the process for return or replacement of SMUN2130T1?
All SMUN2130T1 units undergo pre-shipment inspection (PSI). If there is an issue with SMUN2130T1, 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 SMUN2130T1 part is unused and in its original packaging.
Return procedure for SMUN2130T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMUN2130T1 Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
