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Diodes Incorporated 2DB1188R-13
- Part No.:
- 2DB1188R-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
2DB1188R-13.pdf
- Description:
- TRANS PNP 32V 2A SOT-89-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,397
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Product details
Overview
2DB1188R-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 2DB1188R-13 datasheet, 2DB1188R-13 pinout, 2DB1188R-13 application, or 2DB1188R-13 equivalent, key selection criteria include verified hFE range (180–390), thermal resistance (RθJL = 19°C/W), complementary NPN pairing with 2DD1766, and AEC-Q101 readiness per manufacturer qualification path.
Technical Context
This PNP transistor operates in linear or saturated switching mode with guaranteed breakdown ratings: VCBO = -40V, VEBO = -6V, and safe operating area validated up to -2A DC and -3A pulsed. Its fT = 120MHz supports moderate-speed switching in analog and digital interface stages.
Thermal design is enabled by low RθJL = 19°C/W to the exposed collector pad and RθJA = 125°C/W on 15mm×15mm 1oz FR4-enabling stable operation from -55°C to +150°C ambient with proper PCB copper layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -32V - Maximum allowable collector-emitter voltage before avalanche conduction in common-emitter configuration. |
| IC (cont.) | -2A - Continuous collector current capability with derated power above 25°C ambient. |
| VCE(sat) | -0.35V to -0.8V @ -2A/-0.2A - Low saturation voltage enables <0.8W conduction loss at full load. |
| hFE | 180–390 @ VCE = -3V, IC = -0.5A - High DC current gain ensures reliable base drive efficiency. |
| fT | 120MHz - Transition frequency confirms suitability for audio-frequency and low-MHz switching applications. |
| RθJL | 19°C/W - Junction-to-leads thermal resistance measured to solder point on exposed collector pad. |
| PD | 1W @ TA = 25°C on 15×15mm 1oz FR4 - Power dissipation limit under standard mounting conditions. |
Pinout & Package
Package: SOT89 - Surface-mount plastic package with exposed collector pad for thermal and electrical connection; dimensions per JEDEC MO-203AA (D2 = 1.71 mm, E = 2.50 mm, H = 4.10 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (C) | Main current sink terminal | Connected to exposed metal tab - must be soldered to ≥15 mm² copper pour for thermal management. |
| Emitter (E) | Current source reference node | Provides return path for emitter current; tied to system ground or negative rail in high-side switch configurations. |
| Base (B) | Control input for minority-carrier injection | Requires current-limited drive (max -500 mA) to achieve specified saturation and avoid second breakdown. |
Key Features
| Feature | Design Value |
|---|---|
| High current capability | -2A continuous collector current supports robust load switching without external heat sinking in compact layouts. |
| Low VCE(sat) | -0.35V typical at -2A reduces conduction losses below 700 mW, improving efficiency in battery-powered systems. |
| Automotive-grade qualification path | Manufactured in IATF 16949-certified facilities with PPAP capability - suitable for AEC-Q101-compliant designs upon request. |
| Green RoHS compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb), lead-free, and UL 94V-0 rated molding compound. |
Applications
| Automotive Lighting Control | Industrial DC Motor Driver |
|---|---|
|
Use Scenario: Switching 12V/24V LED headlamp arrays in body control modules. IC Role / Device Role / Timing Role: High-side PNP switch controlling current flow from battery to LED string. Use Value: VCEO = -32V withstands load-dump transients; low VCE(sat) minimizes thermal rise during PWM dimming. |
Use Scenario: Driving brushed DC motors in HVAC actuators and valve positioners. IC Role / Device Role / Timing Role: Medium-power current sink in H-bridge half-bridge stage or direction-control circuit. Use Value: -2A rating handles stall currents; hFE > 180 ensures stable turn-on with microcontroller GPIO-level base drive. |
| Power Supply Enable Circuit | Programmable Current Sink |
|
Use Scenario: Enabling/disabling auxiliary 5V/3.3V rails in multi-rail embedded power systems. IC Role / Device Role / Timing Role: PNP pass element controlled by logic-level enable signal via base resistor network. Use Value: Fast turn-off (driven by base pull-down) and low leakage (ICBO ≤ -100 nA) ensure rail isolation when disabled. |
Use Scenario: Precision current sink for sensor biasing (e.g., RTD, photodiode) in industrial analog front-ends. IC Role / Device Role / Timing Role: Linear-mode current regulator with feedback-controlled base current. Use Value: Tight hFE tolerance (180–390) and stable fT support accurate current mirroring up to 100 kHz bandwidth. |
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 |
|---|---|---|---|
| MJD112-13 | VCEO = -100V, IC = -2A, hFE = 1000–3000, TO-252 package | Higher voltage rating and larger footprint; better for 48V systems but requires more board space | Select when >-32V blocking is required and thermal mass allows TO-252 mounting. |
| 2DB1188Q-13 | Same package and pinout; hFE = 120–270 (lower mid-range gain) | Reduced gain consistency at low IC; less margin for marginal base drive in noisy environments | Choose for cost-sensitive designs where gain variation is acceptable and base drive is well-regulated. |
Compared with MJD112-13 and 2DB1188Q-13, the 2DB1188R-13 delivers optimal balance of gain stability (180–390), thermal performance (RθJL = 19°C/W), and SOT89 compactness-making it preferred for space-constrained 12V/24V automotive and industrial switches requiring predictable saturation behavior.
Availability
2DB1188R-13 is available at Aetrix Electronics and suitable for automotive lighting control, industrial DC motor drivers, power supply enable circuits, and programmable current sinks requiring stable component supply across production lifecycles.
Supply support for 2DB1188R-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 semiconductor company specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and connectivity applications.
The 2DB1188R-13 belongs to Diodes' high-reliability PNP transistor family designed specifically for automotive and industrial power switching-emphasizing ruggedness, thermal efficiency, and AEC-Q101 qualification readiness.
FAQ
What is the maximum safe operating temperature for 2DB1188R-13?
The device supports junction temperatures from -55°C to +150°C. With RθJL = 19°C/W and 1W max power, sustained operation at +150°C junction requires ambient ≤ +131°C when mounted on optimized copper-verified per JEDEC JESD51-2A thermal test board conditions.
Is 2DB1188R-13 pin-compatible with other SOT89 PNP transistors?
Yes-its SOT89 pinout (C-E-B, left-to-right top view) matches industry-standard PNP SOT89 devices including MMBT2907A and DXT3906. However, electrical parameters (especially hFE and VCE(sat)) differ; verify drive requirements and thermal margins before substitution.
Does 2DB1188R-13 meet AEC-Q101 requirements?
While not pre-qualified as AEC-Q101, the 2DB1188R-13 is manufactured in IATF 16949-certified facilities, uses PPAP-capable processes, and shares process and qualification data with AEC-Q101-qualified variants (e.g., 2DB1188Q-AU). Full qualification requires customer-specific testing per AEC-Q101 Rev H.
How does the exposed collector pad affect PCB layout?
The collector connects directly to the exposed metal tab on the underside of the SOT89 package. It must be soldered to ≥15 mm² of 1 oz copper (minimum) with ≥4 thermal vias to inner/ground planes to achieve RθJA = 125°C/W and prevent thermal runaway at full -2A load.
2DB1188R-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 180 @ 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
2DB1188R-13 FAQ
1.How can I place an order for 2DB1188R-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 2DB1188R-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 2DB1188R-13 reliable?
The price and inventory of 2DB1188R-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2DB1188R-13 is usually 5 days.
3.What payment methods are accepted for 2DB1188R-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2DB1188R-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2DB1188R-13?
2DB1188R-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2DB1188R-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 2DB1188R-13?
For technical support, including 2DB1188R-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2DB1188R-13 requirements.
6.How does Aetrix verify that 2DB1188R-13 is sourced from the original manufacturer or authorized distributors?
All 2DB1188R-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 2DB1188R-13 meets industry standards.
7.What is the process for return or replacement of 2DB1188R-13?
All 2DB1188R-13 units undergo pre-shipment inspection (PSI). If there is an issue with 2DB1188R-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 2DB1188R-13 part is unused and in its original packaging.
Return procedure for 2DB1188R-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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