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Diodes Incorporated BCX5316TA
- Part No.:
- BCX5316TA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
BCX5316TA.pdf
- Description:
- TRANS PNP 80V 1A SOT-89-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,225
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Product details
Overview
BCX5316TA from Diodes Incorporated is a PNP medium-power transistor in SOT89 package, rated for -80V VCEO, -1A continuous collector current, and < -500mV VCE(sat) at -0.5A. It serves as a switching or linear amplification device in automotive and industrial power stages, with complementary NPN pairing to BCX5616TA.
For engineers reviewing the BCX5316TA datasheet, BCX5316TA pinout, BCX5316TA application, or BCX5316TA equivalent, key selection criteria include verified VCEO = -80V, hFE ≥ 100 @ -150mA, thermal resistance RθJL = 13°C/W, and SOT89 lead-frame thermal performance under pulsed and DC load conditions.
Technical Context
This PNP bipolar junction transistor operates with emitter-grounded configuration, supporting medium-power switching up to 2W dissipation on 50mm×50mm copper. Its low saturation voltage enables efficient operation in linear regulators and relay drivers where base drive efficiency matters.
The device features guaranteed breakdown ratings (VCBO = -100V, VCEO = -80V, VEBO = -5V), pulsed ICM = -2A capability, and fT = 150MHz - enabling use in audio-frequency amplifiers and fast-switching DC-DC feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -80V - Maximum safe collector-emitter voltage before avalanche in common-emitter configuration. |
| IC (continuous) | -1A - Sustained collector current rating defining usable DC load capacity in switching or amplification. |
| VCE(sat) | < -500mV @ -0.5A/-50mA - Low conduction loss enabling high-efficiency medium-power switching. |
| hFE | 100–250 @ -150mA/-2V - Stable DC current gain range ensuring predictable base drive requirements. |
| RθJL | 13°C/W - Junction-to-lead thermal resistance confirming effective heat transfer via exposed collector pad. |
| fT | 150MHz - Gain-bandwidth product supporting AF amplification and fast transient response in feedback circuits. |
Pinout & Package
Package: SOT89 - surface-mount plastic package with exposed collector pad for enhanced thermal dissipation; 3-terminal configuration; UL 94V-0 rated molding compound; matte tin finish leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (C) | Main current-carrying terminal, electrically connected to exposed metal pad | Primary heat path to PCB copper; must be soldered to ≥15mm² 1oz copper for rated 2W dissipation. |
| Emitter (E) | Current source terminal in PNP operation | Connected to higher-potential rail in high-side switch configurations; defines reference for base bias. |
| Base (B) | Control input for minority-carrier injection | Requires negative current relative to emitter; typical drive: -50mA for full saturation at -500mA collector load. |
Key Features
| Feature | Design Value |
|---|---|
| Complementary pairing | Matched to BCX5616TA (NPN) for push-pull output stages without gain mismatch. |
| Thermal robustness | RθJL = 13°C/W enables stable operation up to +150°C junction temperature with minimal derating. |
| AEC-Q101 readiness | Manufactured in IATF 16949-certified facilities; PPAP-capable for automotive-grade qualification upon request. |
| Green compliance | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb); fully RoHS 3 compliant per EU directives. |
Applications
| Automotive Lighting Control | Industrial Relay Driver |
|---|---|
|
Use Scenario: Driving 12V incandescent or LED headlamp loads in body control modules. IC Role / Device Role / Timing Role: High-side PNP switch controlling load current path to ground. Use Value: -80V VCEO withstands load-dump transients; -500mV VCE(sat) minimizes power loss during sustained illumination. |
Use Scenario: Activating 24V industrial electromechanical relays in PLC I/O modules. IC Role / Device Role / Timing Role: Medium-current interface between microcontroller GPIO and relay coil. Use Value: -1A IC supports >100ms relay pull-in pulses; hFE ≥100 ensures reliable turn-on with ≤5mA MCU drive. |
| Audio Power Amplifier Stage | Linear Voltage Regulator Pass Element |
|
Use Scenario: Complementary output pair in Class AB audio amplifier for 1–5W speaker drive. IC Role / Device Role / Timing Role: PNP half of push-pull emitter-follower stage delivering negative half-cycle current. Use Value: fT = 150MHz preserves audio bandwidth; low VCE(sat) reduces crossover distortion at low output levels. |
Use Scenario: Series pass transistor in adjustable 3-terminal linear regulator for 5–15V outputs. IC Role / Device Role / Timing Role: Current-controlled series element regulating output by dissipating excess input-output differential. Use Value: RθJL = 13°C/W allows 1.5W dissipation on standard PCB; -80V rating accommodates wide-input industrial supplies. |
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 |
|---|---|---|---|
| ZTX753 | VCEO = -60V, hFE = 100–300 @ -1A, SOT89 package, RθJL = 15°C/W | Limited to ≤60V systems; lower thermal margin than BCX5316TA in high-ambient environments | Select when VCEO ≥ -60V suffices and legacy Zetex footprint compatibility is required. |
| MJD2955T4G | VCEO = -60V, IC = -10A, TO-220 package, RθJC = 1.5°C/W | Higher current but larger footprint and slower switching; no SOT89 drop-in replacement | Choose only when board redesign permits TO-220 mounting and >1A peak load is needed. |
Compared with ZTX753 and MJD2955T4G, BCX5316TA delivers superior voltage margin (-80V), optimized SOT89 thermal performance (RθJL = 13°C/W), and tighter gain consistency for precision biasing - making it preferred for space-constrained automotive and industrial control designs.
Availability
BCX5316TA is available at Aetrix Electronics and suitable for automotive lighting control, industrial relay driving, audio amplifier output stages, and linear regulator pass elements requiring stable component supply across production lifecycles.
Supply support for BCX5316TA 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, manufacturing, and sales operations across Asia, Europe, and the Americas.
The BCX5x series targets medium-power bipolar switching and amplification in automotive, industrial, and consumer applications - emphasizing thermal reliability, AEC-Q101 readiness, and RoHS-compliant packaging.
FAQ
What is the maximum allowable junction temperature for BCX5316TA?
The BCX5316TA has an operating junction temperature range of -55°C to +150°C. Its thermal resistance values (RθJL = 13°C/W, RθJC = 27°C/W) are specified under defined PCB copper area conditions, and derating curves in the datasheet must be applied above +25°C ambient to maintain safe operation within this limit.
Is BCX5316TA qualified to AEC-Q101?
BCX5316TA is manufactured in IATF 16949-certified facilities and supports PPAP documentation. While not pre-qualified as standard, Diodes Incorporated offers AEC-Q101 qualification upon customer request with defined test plans and change control - confirmed via direct engagement with their automotive quality team.
Can BCX5316TA replace BCX53TA in existing designs?
Yes - BCX5316TA and BCX53TA share identical electrical specifications, thermal characteristics, and SOT89 mechanical dimensions. The "16" suffix denotes tape-and-reel packaging (1000 units/reel, 12mm tape width); no circuit or layout changes are required for substitution.
What is the recommended PCB pad layout for optimal thermal performance?
Diodes specifies a minimum 15mm × 15mm 1oz copper area connected to the exposed collector pad for 1W operation. For 2W dissipation, use 50mm × 50mm copper. The official SOT89 pad layout (D2 = 1.71mm, E2 = 2.20mm, Y2 = 1.50mm) is published on diodes.com/package-outlines.html and must be followed to ensure solder joint integrity and thermal conduction.
BCX5316TA 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):
- 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:
- 100 @ 150mA, 2V
- Power - Max:
- 1 W
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
BCX5316TA FAQ
1.How can I place an order for BCX5316TA through Aetrix?
Please submit a Request for Quotation (RFQ) for BCX5316TA 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 BCX5316TA reliable?
The price and inventory of BCX5316TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BCX5316TA is usually 5 days.
3.What payment methods are accepted for BCX5316TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BCX5316TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BCX5316TA?
BCX5316TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BCX5316TA 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 BCX5316TA?
For technical support, including BCX5316TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BCX5316TA requirements.
6.How does Aetrix verify that BCX5316TA is sourced from the original manufacturer or authorized distributors?
All BCX5316TA 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 BCX5316TA meets industry standards.
7.What is the process for return or replacement of BCX5316TA?
All BCX5316TA units undergo pre-shipment inspection (PSI). If there is an issue with BCX5316TA, 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 BCX5316TA part is unused and in its original packaging.
Return procedure for BCX5316TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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