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Diodes Incorporated FMMT596QTA
- Part No.:
- FMMT596QTA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
FMMT596QTA.pdf
- Description:
- TRANS PNP 200V 0.3A SOT-23-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,601
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Product details
Overview
FMMT596QTA from Diodes Incorporated is a 200V PNP high-voltage transistor in SOT23 package, rated for -200V VCEO, -0.3A continuous collector current, and 500mW power dissipation. It serves as a high-voltage switching element in automotive power management, flyback converter bias supplies, and industrial relay drivers where robust breakdown voltage and AEC-Q101 qualification are required.
For engineers reviewing the FMMT596QTA datasheet, FMMT596QTA pinout, FMMT596QTA application, or FMMT596QTA equivalent, key selection criteria include verified -200V VCEO, pulsed -1A ICM, hFE ≥85 at -250mA, ESD HBM rating of 2kV, and thermal resistance RθJA = 250°C/W under standard PCB mounting.
Technical Context
This PNP bipolar junction transistor operates with emitter-grounded configuration and supports high-voltage off-state blocking up to -220V VCBO. Its hFE spans 100–300 across -1mA to -250mA IC, enabling stable DC gain in linear and saturated switching modes.
Switching performance is characterized by td = 44ns, tr = 31ns, ts = 665ns, and tf = 76ns at VCC = -80V and IC = -100mA, with fT = 150MHz confirming suitability for medium-frequency switching applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -200V - Enables use in 170VAC-derived circuits with safety margin against transients. |
| IC (cont.) | -0.3A - Supports sustained load switching in auxiliary power rails and sensor interface bias networks. |
| PD | 500mW - Requires thermal derating above +70°C ambient on standard FR4 PCBs. |
| hFE | 85–300 - Ensures reliable base drive design across production lots and temperature range. |
| fT | 150MHz - Validates operation in PWM control loops up to ~10–15MHz fundamental frequency. |
| ESD HBM | 2000V - Meets IEC 61000-4-2 Level 2 for handling without special precautions. |
| RθJA | 250°C/W - Limits max junction temperature to 150°C at 500mW dissipation in still air. |
Pinout & Package
Package: SOT23 - Surface-mount plastic package with matte tin-plated leads, moisture sensitivity level 1, UL 94V-0 rated, weight ≈ 0.008g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Emission terminal for majority carriers | Connected to system ground or higher-potential rail in high-side switch configurations. |
| 2 (Base) | Control input for minority carrier injection | Requires negative current relative to emitter to turn on; typical drive: -10mA to -25mA. |
| 3 (Collector) | Current collection node | Handles high-voltage loads up to -200V; soldered to thermal pad or copper pour for heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power modules, body control units, and lighting systems requiring change-controlled manufacturing. |
| VCEO = -200V | Supports direct interface with 120/240VAC rectified rails in offline auxiliary supplies without external snubbers. |
| hFE ≥ 85 @ -250mA | Reduces base drive circuit complexity and enables single-stage transistor switching in low-power inverters. |
| SOT23 footprint | Enables compact layout in space-constrained modules such as LED drivers and battery protection IC bias networks. |
| Lead-free & Halogen-free | Complies with RoHS 3 (2015/863/EU) and automotive ELV Directive for end-of-life recyclability. |
Applications
| Automotive Body Control Module | Industrial Relay Driver |
|---|---|
Use Scenario: Driving 12V/24V electromagnetic relays in door lock actuators and HVAC valve controls. IC Role / Device Role / Timing Role: High-voltage PNP switch providing isolated load control with reverse-polarity protection. Use Value: Withstands load dump transients up to -200V and delivers -250mA saturation current at VCE(sat) ≤ -0.35V. |
Use Scenario: Controlling 48V DC contactors in programmable logic controller (PLC) output stages. IC Role / Device Role / Timing Role: Medium-speed switching element interfacing microcontroller GPIO to inductive coil loads. Use Value: Achieves toff < 750ns and supports repetitive 100Hz switching with minimal thermal rise on 1oz copper. |
| Offline Flyback Bias Supply | High-Voltage Sensor Interface |
Use Scenario: Providing regulated +15V bias to PWM controller ICs in AC/DC adapters with universal input. IC Role / Device Role / Timing Role: Secondary-side PNP pass transistor regulating auxiliary winding output. Use Value: Maintains regulation stability across line variations due to hFE consistency and low VBE(sat) (-1.0V). |
Use Scenario: Level-shifting and isolating analog signals from ±100V industrial bus monitoring circuits. IC Role / Device Role / Timing Role: High-impedance emitter-follower buffer with breakdown-rated junction isolation. Use Value: Blocks common-mode voltages up to -200V while preserving signal fidelity via low Cobo (10pF). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP high-voltage transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZTX951 | VCEO = -150V, IC = -1A, SOT89 package, RθJA = 125°C/W | Higher current but lower voltage rating; requires larger board area and heatsinking. | Select when > -150V blocking is sufficient and higher continuous current is needed. |
| MMBT596 | VCEO = -100V, IC = -0.2A, same SOT23 footprint, non-AEC-Q101 | Lacks automotive qualification and fails at 170VAC-derived transients. | Acceptable only for cost-sensitive consumer-grade 24V systems with no transient exposure. |
Compared with ZTX951 and MMBT596, FMMT596QTA uniquely balances -200V blocking, AEC-Q101 compliance, and SOT23 compactness-making it the only choice for space-constrained automotive auxiliary supplies needing full 120/240VAC transient immunity.
Availability
FMMT596QTA is available at Aetrix Electronics and suitable for automotive body control modules, industrial relay drivers, offline flyback bias supplies, and high-voltage sensor interfaces requiring stable component supply across extended product lifecycles.
Supply support for FMMT596QTA 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 distribution operations across Asia, Europe, and the Americas.
FMMT596QTA belongs to Diodes' high-voltage bipolar transistor product line, engineered specifically for automotive and industrial applications demanding AEC-Q101 reliability, high breakdown voltage, and thermally efficient SOT23 packaging.
FAQ
What is the maximum safe operating voltage for FMMT596QTA in continuous DC mode?
The absolute maximum collector-emitter voltage (VCEO) is -200V at TA = +25°C. Operation above -180V DC is not recommended without derating per the datasheet's thermal curves and verification of PCB layout thermal performance. Transient spikes must remain below -220V (VCBO) to avoid avalanche-induced degradation.
Does FMMT596QTA require a base resistor in switching applications?
Yes - a series base resistor is mandatory to limit IB and ensure saturation. For -250mA IC, the datasheet specifies -25mA IB; using a 1kΩ resistor with -5V drive yields -5mA IB, resulting in partial saturation and elevated VCE(sat). A 200Ω resistor is typical for full saturation at -5V drive.
Can FMMT596QTA replace NPN transistors in existing designs?
No - FMMT596QTA is a PNP device with inverted polarity requirements: base must be driven negative relative to emitter, and collector connects to the more negative potential. Direct substitution for NPN types like BC847 or MMBT3904 would invert logic and cause functional failure without circuit redesign.
Is the SOT23 package of FMMT596QTA compatible with automated optical inspection (AOI) systems?
Yes - the SOT23 package features matte tin-plated leads with defined coplanarity (≤0.1mm), consistent marking ("596"), and standardized dimensions (C=2.0mm, X=0.8mm). Its JEDEC-compliant outline and IPC-7351B footprint alignment enable reliable AOI detection of solder joint quality and placement accuracy in high-volume SMT lines.
FMMT596QTA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 300 mA
- Voltage - Collector Emitter Breakdown (Max):
- 200 V
- Vce Saturation (Max) @ Ib, Ic:
- 350mV @ 25mA, 250mA
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 100mA, 10V
- Power - Max:
- 500 mW
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
FMMT596QTA FAQ
1.How can I place an order for FMMT596QTA through Aetrix?
Please submit a Request for Quotation (RFQ) for FMMT596QTA 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 FMMT596QTA reliable?
The price and inventory of FMMT596QTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FMMT596QTA is usually 5 days.
3.What payment methods are accepted for FMMT596QTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FMMT596QTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FMMT596QTA?
FMMT596QTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FMMT596QTA 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 FMMT596QTA?
For technical support, including FMMT596QTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FMMT596QTA requirements.
6.How does Aetrix verify that FMMT596QTA is sourced from the original manufacturer or authorized distributors?
All FMMT596QTA 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 FMMT596QTA meets industry standards.
7.What is the process for return or replacement of FMMT596QTA?
All FMMT596QTA units undergo pre-shipment inspection (PSI). If there is an issue with FMMT596QTA, 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 FMMT596QTA part is unused and in its original packaging.
Return procedure for FMMT596QTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FMMT596QTA Tags
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MMBT3906LT1G
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MMBT3904-7-F
Diodes Incorporated
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Diodes Incorporated
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Micro Commercial Co
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MMBT2222A-7-F
Diodes Incorporated
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BC847B,215
Nexperia USA Inc.
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