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Diodes Incorporated FMMT596TA
- Part No.:
- FMMT596TA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
FMMT596TA.pdf
- Description:
- TRANS PNP 200V 0.3A SOT-23-3
- Quantity:
- Payment:
- Shipping:
Inventory:137,414
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Product details
Overview
FMMT596TA from Zetex Semiconductors is a PNP silicon planar high-voltage transistor in SOT-23 package, rated for VCEO = −200 V, VCBO = −220 V, and continuous IC = −300 mA. It delivers VCE(sat) = −0.2 V at IC = −100 mA / IB = −10 mA and supports switching applications up to 150 MHz (fT) in high-voltage DC-DC converters and industrial relay drivers.
For engineers reviewing the FMMT596TA datasheet, FMMT596TA pinout, FMMT596TA application, or FMMT596TA equivalent, key selection criteria include verified high-voltage blocking capability, low saturation voltage under defined drive conditions, temperature-stable hFE across −55°C to +150°C, and SOT-23 footprint compatibility with automated assembly.
Technical Context
This PNP transistor uses a planar silicon structure optimized for high-voltage breakdown and fast switching. Its fT = 150 MHz and switching times (td = 22 ns, tr = 19 ns, tf = 70 ns) are characterized at VCC = −80 V and IC = −200 mA with matched base drive pulses.
The device operates across −55°C to +150°C junction temperature, with hFE = 100–300 over IC = −1 mA to −250 mA and VCE = −10 V. Safe operating area extends to 100 V / 1 A (DC) and 1000 V / 0.1 A (1 ms pulse), validated per datasheet SOA curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −200 V: Maximum collector-emitter voltage before avalanche conduction in open-base configuration. |
| IC (continuous) | −300 mA: Continuous DC collector current rating at Tamb = 25°C with derating above 25°C. |
| VCE(sat) | −0.2 V @ IC = −100 mA, IB = −10 mA: Low on-state loss enabling efficient high-voltage switching. |
| fT | 150 MHz @ IC = −50 mA, VCE = −10 V: Small-signal current gain bandwidth limiting high-frequency amplification. |
| hFE | 100–300 @ IC = −1 mA to −250 mA: DC current gain range supporting stable bias design across load currents. |
| Ptot | 500 mW @ Tamb = 25°C: Total power dissipation limit defining thermal design margin in SOT-23 package. |
Pinout & Package
Package: SOT-23 (3-lead plastic surface-mount). Dimensions per Issue 4 datasheet: D = 2.80–3.04 mm, E = 2.10–2.64 mm, e = 0.95 mm (nominal pitch), L = 0.25–0.60 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current source terminal in PNP operation; connects to higher potential node in switching circuits. |
| 2 (Base) | B | Control input requiring negative current to turn on; typical drive IB = −10 mA for full saturation. |
| 3 (Collector) | C | Current sink terminal; handles −200 V reverse bias and −300 mA continuous current. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage blocking | VCBO = −220 V enables use in >170 V DC bus applications without external snubbers. |
| Low VCE(sat) | −0.2 V at IC/IB = 10 ensures <100 mW conduction loss at 100 mA load current. |
| Wide temperature range | −55°C to +150°C operation supports automotive under-hood and industrial control environments. |
| Fast switching | ton ≈ 41 ns (td + tr) and toff ≈ 542 ns (ts + tf) at −80 V/−200 mA enable kHz-range PWM control. |
Applications
| Industrial Relay Drivers | High-Voltage DC-DC Converters |
|---|---|
Use Scenario: Driving 24–48 V coil relays in programmable logic controllers with 200 V transient suppression. IC Role / Device Role / Timing Role: PNP high-side switch controlling relay coil current path with flyback diode integration. Use Value: −200 V VCEO withstands inductive kickback; −0.2 V VCE(sat) minimizes coil heating during sustained activation. | Use Scenario: Active clamp or synchronous rectifier in isolated flyback converters operating from 100–200 V DC input. IC Role / Device Role / Timing Role: High-voltage PNP switch in clamp circuit or auxiliary output stage. Use Value: 150 MHz fT supports clean switching at 100–500 kHz; SOA curve validates 100 V/1 A pulsed capability. |
| Capacitor Discharge Ignition (CDI) | High-Voltage Sensor Interface |
Use Scenario: Triggering spark plugs in small-engine CDI systems using 200–300 V stored capacitor energy. IC Role / Device Role / Timing Role: Fast-switching PNP discharge switch with precise timing control via base pulse. Use Value: td = 22 ns and tf = 70 ns ensure sub-100 ns total switching window; −220 V VCBO prevents premature breakdown. | Use Scenario: Level-shifting and isolation interface between microcontroller GPIO and ±150 V sensor outputs. IC Role / Device Role / Timing Role: High-voltage level translator with current-limited output for fault-tolerant sensing. Use Value: hFE ≥ 100 at IC = −1 mA enables reliable digital signal translation; −5 V VEBO protects base-emitter junction. |
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 |
|---|---|---|---|
| ZTX653 | VCEO = −150 V, IC = −1 A, SOT-89 package | Lower voltage rating but higher current; requires larger PCB footprint | Select when >300 mA average current needed and voltage stress ≤150 V |
| MMBT596 | Same die in SOT-23, but unspecified tape/reel packaging (no TA suffix) | Identical electrical specs; no difference in circuit function or layout | Select only if reel size (3,000 pcs) or tape width (8 mm) not required for production line |
Compared with ZTX653, FMMT596TA provides 33% higher voltage blocking at lower current; compared with MMBT596, it guarantees tape-and-reel compliance for automated SMT placement with traceable lot control.
Availability
FMMT596TA is available at Aetrix Electronics and suitable for industrial relay drivers, high-voltage DC-DC converters, capacitor discharge ignition systems, and high-voltage sensor interfaces requiring stable component supply and SOT-23 assembly compatibility.
Supply support for FMMT596TA 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
Zetex Semiconductors plc was a UK-based ISO 9001/TS16949-certified manufacturer specializing in high-performance discrete semiconductors before its acquisition by Diodes Incorporated in 2008.
FMMT596TA belongs to Zetex's high-voltage bipolar transistor product line, designed specifically for robust switching in industrial power control, ignition, and protection circuits where reliability under voltage transients is critical.
FAQ
Is FMMT596TA RoHS compliant?
Yes, FMMT596TA is RoHS compliant per Zetex's green compliance statement in the Issue 4 datasheet. All Zetex components meet EU Directive 2011/65/EU requirements, including lead-free terminations and absence of restricted substances such as Cd, Hg, Pb, Cr⁶⁺, PBB, and PBDE.
What is the maximum safe operating voltage for continuous DC use?
The maximum continuous DC collector-emitter voltage is −200 V (VCEO), verified under open-base conditions at Tj = 25°C. Derating is required above 25°C ambient; the SOA curve in the datasheet defines allowable VCE/IC combinations at elevated temperatures and pulse widths.
Can FMMT596TA replace a BC857 in a 12 V circuit?
No - while both are PNP SOT-23 transistors, BC857 has VCEO = −45 V and IC = −100 mA. FMMT596TA's −200 V rating and −300 mA current capacity exceed BC857, but its higher VBE(on) (−0.9 V) and different hFE profile may require base resistor recalculations in 12 V bias networks.
Does FMMT596TA support pulsed operation beyond its DC ratings?
Yes - the datasheet specifies pulse test conditions (300 µs width, 2% duty cycle) for V(BR)CEO and switching parameters. The SOA chart confirms safe operation up to 1000 V at 100 ms pulses and 100 V at 1 A DC, provided case temperature remains within −55°C to +150°C limits.
FMMT596TA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- 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:
- 85 @ 250mA, 10V
- Power - Max:
- 500 mW
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
FMMT596TA FAQ
1.How can I place an order for FMMT596TA through Aetrix?
Please submit a Request for Quotation (RFQ) for FMMT596TA 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 FMMT596TA reliable?
The price and inventory of FMMT596TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FMMT596TA is usually 5 days.
3.What payment methods are accepted for FMMT596TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FMMT596TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FMMT596TA?
FMMT596TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FMMT596TA 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 FMMT596TA?
For technical support, including FMMT596TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FMMT596TA requirements.
6.How does Aetrix verify that FMMT596TA is sourced from the original manufacturer or authorized distributors?
All FMMT596TA 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 FMMT596TA meets industry standards.
7.What is the process for return or replacement of FMMT596TA?
All FMMT596TA units undergo pre-shipment inspection (PSI). If there is an issue with FMMT596TA, 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 FMMT596TA part is unused and in its original packaging.
Return procedure for FMMT596TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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