My Inquiry
My Account
Diodes Incorporated BCP53TA
- Part No.:
- BCP53TA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
BCP53TA.pdf
- Description:
- TRANS PNP 80V 1A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BCP53TA from Diodes Incorporated is a PNP medium-power bipolar junction transistor in SOT223 package, rated for -80V VCEO, -1A continuous collector current, and 2W power dissipation. It features low saturation voltage (< -500 mV @ -500 mA), AEC-Q101 qualification, and gain groups 10/16 - used in automotive audio output stages and industrial relay drivers.
For engineers reviewing the BCP53TA datasheet, BCP53TA pinout, BCP53TA application, or BCP53TA equivalent, key selection criteria include VCEO rating, thermal resistance (RθJA = 62°C/W), hFE consistency across temperature, and SOT223 lead-frame thermal performance under pulsed switching conditions.
Technical Context
The BCP53TA operates as a high-reliability PNP switch/amplifier with complementary NPN pairing to BCP56. Its -80V VCEO and -100V VCBO support medium-voltage DC control rails, while its 150 MHz fT enables audio-frequency amplification up to ~20 kHz with stable gain.
Thermal design relies on the SOT223's low RθJL (19.4°C/W) to the collector lead, enabling 2W dissipation when mounted on 50 mm × 50 mm 1 oz copper PCB. ESD robustness (4 kV HBM) and -65°C to +150°C operating range meet automotive under-hood requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -80 V - supports 24V/48V industrial bus switching with 2× safety margin |
| IC (cont) | -1 A - drives solenoids, relays, or LED arrays without external heat sinking |
| PD | 2 W - achievable with minimal PCB copper area (50 mm × 50 mm, 1 oz) |
| VCE(sat) | < -500 mV @ -500 mA - minimizes conduction loss in linear or saturated switching |
| hFE | 100–250 (gain group 16) - ensures predictable base drive sizing across production lots |
| fT | 150 MHz - sufficient for AF amplification and PWM modulation up to 100 kHz |
| RθJA | 62 °C/W - defines maximum ambient temperature rise at full 2W load |
Pinout & Package
SOT223 package with exposed collector tab for thermal conduction; molded green plastic case (UL 94V-0), matte tin-plated leads, 0.112 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current sink node; connected to higher potential rail in PNP configuration |
| 2 (Base) | B | Control input; requires ~-1.0 V VBE(on) to saturate at -500 mA |
| 3 (Collector) | C | Main power path; electrically and thermally tied to exposed metal tab |
| 4 (Collector Tab) | C (thermal & electrical) | Primary heat transfer path; must be soldered to ≥50 mm² copper pour |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics |
| Lead-free & halogen-free | Meets RoHS 2 and JEDEC J-STD-020 Level 1 moisture sensitivity without derating |
| Low VCE(sat) | Reduces power loss by >30% vs. legacy PNP transistors at -500 mA load |
| Gain grouping (10/16) | Enables consistent biasing in production without individual trimming or feedback adjustment |
| High ESD immunity | 4 kV HBM rating eliminates need for external protection in board-level handling |
Applications
| Automotive Audio Output Stage | Industrial Relay Driver |
|---|---|
Use Scenario: Driving 4Ω speaker loads in vehicle infotainment amplifier outputs. IC Role / Device Role / Timing Role: PNP output transistor in complementary Class AB push-pull stage. Use Value: -80V VCEO accommodates 45V rail transients; low VCE(sat) reduces thermal stress during sustained bass peaks. | Use Scenario: Switching 24V DC coils in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Medium-power interface transistor between microcontroller GPIO and relay coil. Use Value: -1A IC handles 750 mA relay hold current with 33% margin; AEC-Q101 ensures long-term reliability in factory environments. |
| DC Motor Direction Control | Power Supply Enable Switch |
Use Scenario: Half-bridge high-side switch in bidirectional 12V brushed DC motor control. IC Role / Device Role / Timing Role: High-side PNP switch in H-bridge complemented by N-channel MOSFET low-side. Use Value: SOT223 thermal performance sustains 2W dissipation during stall conditions; -60V VCBO prevents breakdown during inductive kickback. | Use Scenario: Enabling/disabling auxiliary 5V/3.3V LDO outputs in multi-rail embedded power systems. IC Role / Device Role / Timing Role: Low-loss series pass element controlling enable path to downstream regulators. Use Value: < -500 mV VCE(sat) limits dropout to < 0.5 V at 500 mA, preserving regulation headroom. |
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 |
|---|---|---|---|
| BCP5316TA | Same die, gain group 16 (hFE = 100–250); identical ratings and package | No functional difference; optimized for designs requiring tighter hFE distribution | Select when base drive stability across temperature and lot is critical |
| MBT3906DW1T1G | SOT363 dual PNP; lower VCEO (-40V), lower IC (-200mA), no AEC-Q101 | Only suitable for low-power signal switching, not medium-power loads | Use only in space-constrained non-automotive signal routing where <200mA is sufficient |
Compared with BCP5316TA, the BCP53TA offers identical electrical specs but broader hFE range (25–250), making it more flexible for cost-sensitive designs; versus MBT3906DW1T1G, it delivers 5× higher current and 2× higher voltage capability with automotive qualification - essential for industrial actuation.
Availability
BCP53TA is available at Aetrix Electronics and suitable for automotive audio systems, industrial PLC I/O modules, DC motor controllers, and embedded power sequencing requiring stable component supply and AEC-Q101 compliance.
Supply support for BCP53TA 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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in Taiwan and China.
The BCP51/52/53 family targets medium-power linear and switching applications in automotive, industrial, and consumer equipment - designed specifically for robustness under thermal cycling and electrical overstress in harsh environments.
FAQ
What is the maximum safe operating temperature for BCP53TA?
The BCP53TA has an operating junction temperature range of -65°C to +150°C. At ambient temperatures above 75°C, derating is required per the datasheet's thermal curve: power dissipation must be reduced linearly beyond 62°C/W RθJA to maintain TJ ≤ 150°C. For continuous 2W operation, ambient must stay below 25°C with specified PCB copper.
Is BCP53TA pin-compatible with other SOT223 PNP transistors?
Yes - BCP53TA uses standard SOT223 pinout (E-B-C-tab), matching industry-standard layout for PNP devices in this package. However, electrical parameters differ significantly: e.g., MMBT3906 has only -40V VCEO and -200mA IC, so direct substitution risks overvoltage or thermal failure in medium-power roles.
Does BCP53TA require a heatsink in typical applications?
No external heatsink is required if mounted on ≥50 mm × 50 mm 1 oz copper PCB per Diodes' thermal test condition. The SOT223 collector tab provides sufficient thermal conduction for 2W dissipation at 25°C ambient. Smaller copper areas or higher ambient temperatures necessitate derating or supplemental copper pours.
How does the AEC-Q101 qualification impact BCP53TA's use in non-automotive designs?
AEC-Q101 qualification ensures enhanced reliability - including extended temperature cycling, accelerated life testing, and ESD robustness - which directly benefits industrial and medical applications requiring long service life and field stability. No design changes are needed; the qualification reflects stricter screening, not altered functionality.
BCP53TA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 1 A
- Voltage - Collector Emitter Breakdown (Max):
- 80 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 40 @ 150mA, 2V
- Power - Max:
- 2 W
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
BCP53TA FAQ
1.How can I place an order for BCP53TA through Aetrix?
Please submit a Request for Quotation (RFQ) for BCP53TA 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 BCP53TA reliable?
The price and inventory of BCP53TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCP53TA is usually 5 days.
3.What payment methods are accepted for BCP53TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCP53TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCP53TA?
BCP53TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCP53TA 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 BCP53TA?
For technical support, including BCP53TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCP53TA requirements.
6.How does Aetrix verify that BCP53TA is sourced from the original manufacturer or authorized distributors?
All BCP53TA 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 BCP53TA meets industry standards.
7.What is the process for return or replacement of BCP53TA?
All BCP53TA units undergo pre-shipment inspection (PSI). If there is an issue with BCP53TA, 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 BCP53TA part is unused and in its original packaging.
Return procedure for BCP53TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BCP53TA 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
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
