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Diodes Incorporated FZT696BTA
- Part No.:
- FZT696BTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT696BTA.pdf
- Description:
- TRANS NPN 180V 0.5A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:14,181
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Product details
Overview
FZT696BTA from Diodes Incorporated is an 180V NPN high-voltage transistor in SOT223 package, rated for 0.5A continuous collector current, with minimum hFE of 500 at 100mA/5V, VCE(sat) ≤ 200mV at 50mA/0.5mA drive, and 4kV HBM ESD rating. It serves as a high-gain, low-saturation switch in relay/solenoid driver circuits requiring robust voltage blocking.
For engineers reviewing the FZT696BTA datasheet, FZT696BTA pinout, FZT696BTA application, or FZT696BTA equivalent, key selection criteria include verified 180V VCEO, thermal resistance (RθJA = 41.7°C/W on 50mm × 50mm 2oz Cu), SOT223 lead-frame thermal performance, and complementary pairing with FZT795A for push-pull stages.
Technical Context
This NPN bipolar junction transistor operates in linear or saturated switching mode with guaranteed BVCEO ≥ 180V and VCE(sat) ≤ 250mV up to 200mA collector current. Its fT of 130MHz supports fast switching in medium-frequency control loops.
The device features low input capacitance (Cibo = 200pF) and output capacitance (Cobo = 6pF), enabling stable operation in high-impedance gate-drive or feedback networks. Thermal design is anchored by RθJL = 12.9°C/W to the collector lead, supporting power dissipation up to 3W under defined PCB layout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 180V - Enables direct interface with 120VAC-derived DC rails or industrial 110V bus systems without external snubbing. |
| IC (cont.) | 0.5A - Supports driving 500mA solenoids or relays with margin for transient surges. |
| hFE | ≥500 @ 100mA - Reduces required base drive current, easing microcontroller GPIO sourcing capability. |
| VCE(sat) | ≤200mV @ 50mA/0.5mA - Limits conduction loss to <10mW at rated current, minimizing self-heating. |
| fT | 130MHz - Allows use in PWM frequencies up to ~10MHz with acceptable gain roll-off in feedback paths. |
| RθJA | 41.7°C/W - Requires ≥50mm × 50mm 2oz copper pad for full 3W dissipation at +25°C ambient. |
| ESD HBM | 4000V - Provides handling robustness during manual assembly and board-level testing. |
Pinout & Package
Package: SOT223 (Type DN), surface-mount, thermally enhanced plastic case with exposed collector tab. Molded compound meets UL 94V-0; matte tin-plated leads comply with MIL-STD-202 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (C) | Main current sink path | Exposed metal tab - must be connected to ground or low-impedance heat sink; electrically tied to Pin 1 in standard SOT223 footprint. |
| Emitter (E) | Current return path | Pin 2 - referenced to system ground in common-emitter configuration; defines VBE bias reference. |
| Base (B) | Control input | Pin 3 - requires current-limited drive (e.g., 0.5–5mA) to achieve specified saturation; sensitive to ESD. |
Key Features
| Feature | Design Value |
|---|---|
| High voltage blocking | 180V VCEO enables direct replacement of legacy Darlington pairs in 100–150V industrial controls. |
| Low saturation voltage | VCE(sat) ≤ 200mV at 50mA reduces power loss by >40% versus typical 500mV general-purpose transistors. |
| High DC current gain | hFE ≥ 500 at 100mA allows single-stage amplification from MCU GPIO without additional driver stages. |
| Thermal performance | RθJL = 12.9°C/W to collector lead supports 3W dissipation with minimal heatsink area in space-constrained designs. |
| Automotive readiness | Manufactured in IATF 16949-certified facilities; AEC-Q101 qualification available upon request for automotive-grade variants. |
Applications
| Industrial Relay Drivers | DC Solenoid Actuation |
|---|---|
Use Scenario: Driving 24–48V DC coil relays in programmable logic controllers (PLCs) with 100ms+ dwell time. IC Role / Device Role / Timing Role: High-voltage NPN switch providing galvanic isolation between microcontroller outputs and inductive loads. Use Value: 180V VCEO withstands flyback spikes up to 150V without clamping diodes; low VCE(sat) limits thermal rise during sustained activation. |
Use Scenario: Controlling fuel injectors or pneumatic valves in embedded machinery with 100–500mA steady-state current. IC Role / Device Role / Timing Role: Fast-turn-on/turn-off current switch managing solenoid energization/de-energization cycles. Use Value: 130MHz fT and 80ns ton support precise pulse-width modulation at 1–5kHz; high hFE ensures reliable turn-on with limited base drive. |
| Darlington Pair Replacement | High-Voltage Level Shifting |
Use Scenario: Replacing obsolete MJD127/MJD122 Darlington pairs in legacy motor-control boards where board space is constrained. IC Role / Device Role / Timing Role: Single-transistor high-gain switch delivering comparable current gain with reduced propagation delay and footprint. Use Value: 500+ hFE eliminates need for cascaded BJT stages; SOT223 package occupies ~30% less area than TO-220 alternatives. |
Use Scenario: Translating 3.3V/5V logic signals to control 100–180V loads in test equipment or HV power supply sequencing circuits. IC Role / Device Role / Timing Role: Common-emitter level shifter with emitter-follower buffering for bidirectional signal translation. Use Value: 180V VCEO and 7V VEBO allow safe operation across wide input/output voltage differentials without external protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage NPN switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN2012E6TA | VCEO = 120V, hFE = 300 min @ 100mA, SOT23 package | Limited to ≤120V systems; unsuitable for 180V flyback suppression | Select only when board space is critical and voltage stress remains below 100V. |
| MJD127G | VCEO = 100V, TO-220 package, hFE = 1000 min @ 100mA | Higher gain but lower voltage rating and larger footprint; no RoHS/Green compliance | Prefer for legacy designs needing maximum hFE where voltage stays ≤80V and thermal mass is available. |
Compared with ZXTN2012E6TA and MJD127G, FZT696BTA uniquely balances 180V blocking, SOT223 thermal efficiency, and RoHS/Green compliance-making it optimal for new industrial designs requiring both safety margin and compact manufacturability.
Availability
FZT696BTA is available at Aetrix Electronics and suitable for industrial relay drivers, DC solenoid actuation, Darlington pair replacement, and high-voltage level shifting requiring stable component supply and long-term production continuity.
Supply support for FZT696BTA 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 industrial, automotive, and computing markets since 1960.
FZT696BTA belongs to Diodes' high-voltage bipolar transistor product line, engineered specifically for ruggedized switching in PLCs, factory automation, and power interface modules where voltage margin and thermal stability are critical.
FAQ
What is the maximum continuous collector current for FZT696BTA at 100°C ambient?
At TA = +100°C, derating per Figure 4 limits IC to approximately 0.32A for operation on a 50mm × 50mm 2oz copper PCB. This is calculated using the 3W PD rating and RθJA = 41.7°C/W, resulting in 125°C junction limit. Actual usable current depends on layout and airflow.
Can FZT696BTA replace a Darlington transistor directly in existing circuits?
Yes, when the Darlington's primary function is high-current switching with moderate speed. FZT696BTA provides higher fT and lower VCE(sat), but requires re-evaluation of base drive: its hFE is lower than typical Darlingtons (500 vs. 1000+), so base current must increase proportionally to maintain saturation.
Is the SOT223 package lead-free and RoHS compliant?
Yes. FZT696BTA uses matte tin-plated leads and green molding compound meeting EU RoHS 2015/863/EU, with bromine <900ppm, chlorine <900ppm, and antimony <1000ppm. Full compliance documentation is available via Diodes' quality portal.
Does FZT696BTA require a heatsink in typical 0.5A switching applications?
Not necessarily. With proper PCB copper area (≥50mm × 50mm 2oz), the device dissipates ≤100mW at 0.5A/200mV VCE(sat), keeping junction temperature well below 125°C. Heatsinking becomes necessary only above 1A pulsed or in enclosed, still-air environments exceeding 70°C ambient.
FZT696BTA 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:
- NPN
- Current - Collector (Ic) (Max):
- 500 mA
- Voltage - Collector Emitter Breakdown (Max):
- 180 V
- Vce Saturation (Max) @ Ib, Ic:
- 250mV @ 5mA, 200mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 150 @ 200mA, 5V
- Power - Max:
- 2 W
- Frequency - Transition:
- 70MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT696BTA FAQ
1.How can I place an order for FZT696BTA through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT696BTA 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 FZT696BTA reliable?
The price and inventory of FZT696BTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT696BTA is usually 5 days.
3.What payment methods are accepted for FZT696BTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT696BTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT696BTA?
FZT696BTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT696BTA 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 FZT696BTA?
For technical support, including FZT696BTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT696BTA requirements.
6.How does Aetrix verify that FZT696BTA is sourced from the original manufacturer or authorized distributors?
All FZT696BTA 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 FZT696BTA meets industry standards.
7.What is the process for return or replacement of FZT696BTA?
All FZT696BTA units undergo pre-shipment inspection (PSI). If there is an issue with FZT696BTA, 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 FZT696BTA part is unused and in its original packaging.
Return procedure for FZT696BTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FZT696BTA Tags
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