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Diodes Incorporated 2DB1188P-13
- Part No.:
- 2DB1188P-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
2DB1188P-13.pdf
- Description:
- TRANS PNP 32V 2A SOT-89-3
- Quantity:
- Payment:
- Shipping:
Inventory:435
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Product details
Overview
2DB1188P-13 from Diodes Incorporated is a PNP medium-power bipolar junction transistor in SOT89 package, rated for -32V VCEO, -2A continuous collector current, and VCE(sat) ≤ -0.8V at -2A/-0.2A drive-optimized for high-current switching in automotive and industrial power control circuits.
For engineers reviewing the 2DB1188P-13 datasheet, 2DB1188P-13 pinout, 2DB1188P-13 application, or 2DB1188P-13 equivalent, key selection criteria include verified PNP polarity, thermal resistance (RθJL = 19°C/W), hFE range (82–180), safe operating area limits, and AEC-Q101 readiness via qualified variants (2DB1188Q/R).
Technical Context
This device operates as a medium-power PNP switch with complementary NPN pairing to 2DD1766. Its design supports linear and saturated-mode operation across -55°C to +150°C ambient, leveraging low RθJL (19°C/W) for efficient heat transfer through the exposed collector pad and stable hFE performance up to 150°C.
Electrical behavior is characterized by tight VCE(sat) control (< -0.35V typ. @ -2A), robust breakdown margins (VCBO = -40V), and fT = 120MHz-enabling use in moderate-frequency switching and analog amplification where gain-bandwidth and saturation voltage trade-offs are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -32 V - Maximum allowable collector-emitter voltage before breakdown under open-base conditions. |
| IC (cont.) | -2 A - Continuous collector current rating defining maximum DC load-handling capability in PCB-mounted configuration. |
| VCE(sat) | < -0.8 V @ -2A/-0.2A - Ensures minimal conduction loss and heat generation when fully saturated in switching applications. |
| hFE | 82–180 @ VCE = -3V, IC = -0.5A - Specifies current gain range for biasing stability in linear or switching amplifier designs. |
| RθJL | 19 °C/W - Thermal resistance from junction to solder-point, enabling accurate temperature rise estimation on copper pads. |
| fT | 120 MHz - Current gain–bandwidth product indicating usable frequency limit for small-signal amplification. |
Pinout & Package
Package: SOT89 - Surface-mount plastic package with exposed collector pad for enhanced thermal dissipation; dimensions per JEDEC TO-243AA standard (D = 4.50 mm, E = 2.50 mm, H = 4.10 mm, L = 1.05 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (C) | Main current sink terminal | Connected to exposed metal pad; primary thermal path and high-current output node. |
| Emitter (E) | Current source terminal | Common reference point for PNP operation; tied to higher potential rail in typical switch configurations. |
| Base (B) | Control input | Receives negative drive current to turn on; requires external resistor for current limiting and saturation control. |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | < -0.8 V at full -2A load ensures <1.6W conduction loss, reducing heatsink requirements in space-constrained layouts. |
| High IC rating | -2A continuous current supports direct driving of solenoids, relays, and LED arrays without external current boosting. |
| Robust thermal design | RθJL = 19°C/W enables reliable operation at TJ ≤ 150°C with minimal copper area (15×15 mm, 1 oz). |
| AEC-Q101 compatibility | Qualified variant (2DB1188Q/R) meets stress-test requirements for automotive electronics, supporting PPAP-capable supply chains. |
Applications
| Automotive Door Lock Actuator | Industrial PLC Output Stage |
|---|---|
|
Use Scenario: Driving 12V DC solenoid locks in vehicle door modules with PWM-controlled engagement. IC Role / Device Role / Timing Role: PNP switch sinking current from solenoid coil to ground during activation phase. Use Value: Low VCE(sat) minimizes coil voltage drop and ensures full actuation torque; high IC rating eliminates need for Darlington staging. |
Use Scenario: Switching 24V DC loads (valves, indicators) in programmable logic controller output cards. IC Role / Device Role / Timing Role: Medium-power discrete switch interfacing microcontroller GPIO to industrial field devices. Use Value: Stable hFE over temperature ensures consistent base drive sizing; SOT89 footprint simplifies layout and rework. |
| DC Motor Brake Circuit | LED Backlight Dimming Driver |
|
Use Scenario: Shorting motor terminals during dynamic braking in 24V brushed DC motor systems. IC Role / Device Role / Timing Role: High-current PNP switch providing low-resistance path between motor windings and supply rail. Use Value: RθJL = 19°C/W allows sustained braking pulses without thermal shutdown; rugged SOA supports repetitive surge currents. |
Use Scenario: Constant-current sinking for multi-string white LED arrays in signage and display backlighting. IC Role / Device Role / Timing Role: Linear-mode current regulator using emitter-follower configuration with feedback control. Use Value: Tight VCE(sat) tolerance ensures uniform current distribution; wide TJ range (-55°C to +150°C) maintains dimming accuracy across environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP medium-power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2DB1188Q-13 | Higher hFE (120–270), active status, AEC-Q101 qualified | Preferred for automotive production; supports tighter base drive margin and extended reliability validation | Select when AEC-Q101 compliance, longer lifecycle, or higher gain consistency is required. |
| MJD122G | TO-252 package, VCEO = -100V, IC = -8A, RθJA = 40°C/W (no exposed pad) | Better voltage headroom and current capacity but larger footprint and inferior thermal performance on PCB | Choose for higher-voltage industrial switching where SOT89 size constraint is relaxed and thermal management uses heatsinks. |
Compared with 2DB1188Q-13, this part offers lower gain and obsolete status but identical pinout and electrical envelope; versus MJD122G, it trades off voltage/current headroom for superior thermal efficiency and compactness in surface-mount designs.
Availability
2DB1188P-13 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, and DC motor brake circuits requiring stable component supply despite its obsolete status-ideal for legacy system maintenance and controlled-bill-of-material transitions.
Supply support for 2DB1188P-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and consumer markets with ISO/TS 16949 and IATF 16949 certified facilities.
The 2DB1188 series belongs to Diodes' medium-power bipolar transistor product line, engineered for robust switching and linear operation in harsh-environment applications where thermal efficiency, gain stability, and AEC-Q101 qualification matter.
FAQ
Is 2DB1188P-13 still recommended for new designs?
No-2DB1188P-13 is marked obsolete in Diodes' ordering information. New designs should use the active 2DB1188Q-13 or 2DB1188R-13, which offer improved hFE, AEC-Q101 qualification, and ongoing manufacturing support per DS31144 Rev. 9-2.
Can 2DB1188P-13 be substituted with 2DB1188Q-13 without layout changes?
Yes-both share identical SOT89 package dimensions, pinout (C-E-B), and maximum ratings (VCEO, IC, VCE(sat)). The only differences are hFE range and qualification status; no PCB or schematic modifications are needed for drop-in replacement.
What is the maximum allowable PCB copper area for thermal derating?
Per DS31144, the 125°C/W RθJA value assumes a 15 mm × 15 mm FR4 board with 1 oz copper. Derating curves show power dissipation increases to ~1.6W with 2 oz copper and scales linearly with copper area-up to 2,500 mm² yields ~1.8W at 25°C ambient.
Does 2DB1188P-13 meet RoHS and halogen-free requirements?
Yes-per DS31144 Notes 1–3, it is fully RoHS 3 compliant (2015/863/EU), lead-free, and halogen/antimony-free ("Green" device), with bromine & chlorine <900 ppm each (total Br+Cl <1500 ppm) and antimony <1000 ppm.
2DB1188P-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 32 V
- Vce Saturation (Max) @ Ib, Ic:
- 800mV @ 200mA, 2A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 82 @ 500mA, 3V
- Power - Max:
- 1 W
- Frequency - Transition:
- 120MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
2DB1188P-13 FAQ
1.How can I place an order for 2DB1188P-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 2DB1188P-13 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 2DB1188P-13 reliable?
The price and inventory of 2DB1188P-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2DB1188P-13 is usually 5 days.
3.What payment methods are accepted for 2DB1188P-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2DB1188P-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2DB1188P-13?
2DB1188P-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2DB1188P-13 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 2DB1188P-13?
For technical support, including 2DB1188P-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2DB1188P-13 requirements.
6.How does Aetrix verify that 2DB1188P-13 is sourced from the original manufacturer or authorized distributors?
All 2DB1188P-13 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 2DB1188P-13 meets industry standards.
7.What is the process for return or replacement of 2DB1188P-13?
All 2DB1188P-13 units undergo pre-shipment inspection (PSI). If there is an issue with 2DB1188P-13, 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 2DB1188P-13 part is unused and in its original packaging.
Return procedure for 2DB1188P-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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