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Diodes Incorporated ZTX753STOB
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- Part No.:
- ZTX753STOB
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- E-Line-3, Formed Leads
- Datasheet:
-
ZTX753STOB.pdf
- Description:
- TRANS PNP 100V 2A E-LINE
- Quantity:
- Payment:
- Shipping:
Inventory:9,577
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Product details
Overview
ZTX753STOB from Diodes Incorporated is a PNP silicon planar medium-power bipolar junction transistor (BJT) designed for linear amplification and switching in industrial power control circuits. It delivers -100 V VCEO, -2 A continuous collector current, 1 W power dissipation at 25°C, and low saturation voltage (VCE(sat) = -0.3 V @ IC = -2 A, IB = -200 mA), enabling efficient operation in DC-DC converter output stages.
For engineers reviewing the ZTX753STOB datasheet, ZTX753STOB pinout, ZTX753STOB application, or ZTX753STOB equivalent, key selection criteria include verified PNP polarity, TO-92 compatible package thermal performance (Rth(j-amb) = 116 °C/W on PCB), safe operating area under pulsed loads, and validated VBE(sat) and fT behavior across temperature.
Technical Context
This discrete PNP BJT operates with fixed-current gain (hFE = 75–225 @ IC = -1 A, VCE = -2 V) and supports high-speed switching via 140 MHz transition frequency (fT) and sub-microsecond turn-off time (toff = 600 ns). Its breakdown ratings-V(BR)CBO = -120 V, V(BR)CEO = -100 V-enable use in 80 V rail systems with margin.
The device exhibits thermally stable saturation characteristics: VCE(sat) remains ≤ -0.5 V up to IC = -2 A and Tj = 100°C, while Rth(j-case) = 70 °C/W supports heatsink-assisted derating. Output capacitance Cobo = 30 pF at VCB = 10 V ensures predictable high-frequency load interaction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -100 V - Maximum allowable collector-emitter voltage before avalanche conduction in common-emitter configuration |
| IC (cont.) | -2 A - Continuous DC collector current rating defining steady-state power stage capacity |
| Ptot | 1 W @ Tamb = 25°C - Thermal limit requiring PCB copper area ≥1 in² for full-rated operation |
| VCE(sat) | -0.3 V @ IC = -2 A, IB = -200 mA - Low conduction loss enabling >95% efficiency in saturated-switch topologies |
| fT | 140 MHz @ IC = -100 mA, VCE = -5 V - Enables reliable operation in audio preamp and SMPS feedback loop compensation |
| Rth(j-amb) | 116 °C/W on PCB - Measured thermal resistance defining junction-to-ambient rise per watt dissipated |
| toff | 600 ns @ IC = -500 mA, VCC = -10 V - Confirmed turn-off delay supporting ≤1 MHz hard-switched applications |
Pinout & Package
Package: TO-92 compatible molded plastic case with E-Line pin configuration (Emitter-Base-Collector, left-to-right when flat side faces viewer).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (E) | Emitter | Current sink terminal; connected to most negative potential in PNP switching circuits |
| Pin 2 (B) | Base | Control input requiring negative bias current (IB ≈ IC/hFE) to saturate transistor |
| Pin 3 (C) | Collector | High-side current source node; connects to positive supply in high-side switch configurations |
Key Features
| Feature | Design Value |
|---|---|
| High V(BR)CBO | -120 V enables robust operation in 100 V bus systems with transient margin |
| Low VCE(sat) | -0.3 V at full rated current reduces conduction losses in linear regulators and motor drivers |
| 140 MHz fT | Supports wideband analog amplification and fast digital switching up to 1 MHz |
| 600 ns toff | Ensures clean turn-off in pulse-width modulated (PWM) power control without tail current |
| Rth(j-case) = 70 °C/W | Enables direct mounting to metal-core PCBs or small heatsinks for thermal management |
Applications
| Industrial DC-DC Converters | Linear Voltage Regulators |
|---|---|
Use Scenario: High-side pass transistor in adjustable 5–24 V linear regulators delivering up to 1.5 A output. IC Role / Device Role / Timing Role: PNP pass element controlling output voltage via base-emitter bias; no timing function. Use Value: Low VCE(sat) minimizes dropout voltage and thermal load at full load, extending regulator lifetime. | Use Scenario: Output stage of programmable bench power supplies requiring precise current limiting. IC Role / Device Role / Timing Role: Current-sinking series regulator transistor with external sense resistor feedback. Use Value: Verified hFE consistency across batch ensures repeatable current-limit threshold accuracy. |
| Motor Control Drivers | Audio Amplifier Stages |
Use Scenario: Low-side driver for 12 V brushed DC motors in factory automation actuators. IC Role / Device Role / Timing Role: Saturated switch controlling motor winding current; driven by microcontroller GPIO. Use Value: 600 ns toff prevents shoot-through in H-bridge half-bridges using complementary NPN/PNP pairs. | Use Scenario: Class-A preamplifier stage in instrumentation-grade signal conditioning modules. IC Role / Device Role / Timing Role: Linear amplification element with fixed bias point; no switching role. Use Value: 140 MHz fT and stable hFE ensure flat 20 Hz–20 kHz gain response with <0.5% THD. |
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 |
|---|---|---|---|
| MJD2955G | VCEO = -70 V, IC = -12 A, TO-220 package, higher Ptot = 115 W | Requires heatsink; unsuitable for space-constrained TO-92 layouts | Select when higher current and thermal headroom justify larger footprint and assembly cost |
| BC807-40 | VCEO = -45 V, IC = -500 mA, SOT-23 package, lower Ptot = 350 mW | Limited to low-voltage logic-level switching; insufficient for 80 V bus systems | Select only for compact, low-power signal switching where voltage margin is not required |
Compared with MJD2955G and BC807-40, ZTX753STOB uniquely balances TO-92 mountability, -100 V blocking, and -2 A capability-making it optimal for mid-power industrial controls where board space and voltage rating are co-constrained.
Availability
ZTX753STOB is available at Aetrix Electronics and suitable for industrial DC-DC converters, linear voltage regulators, and motor control drivers requiring stable component supply across extended production lifecycles.
Supply support for ZTX753STOB 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.
ZTX753STOB belongs to the ZTX series of medium-power BJTs engineered for ruggedized industrial power management-emphasizing voltage margin, thermal stability, and consistent gain across temperature.
FAQ
Is ZTX753STOB RoHS compliant and lead-free?
Yes, ZTX753STOB is RoHS compliant and manufactured with lead-free terminations per Diodes Incorporated's standard product specifications. The TO-92 package uses matte tin plating over copper leadframe, meeting JEDEC J-STD-020 moisture sensitivity level 1 requirements.
What is the maximum safe operating temperature for continuous operation?
The junction temperature must not exceed +200°C, but continuous operation at full 1 W dissipation requires ambient temperature ≤ 25°C with ≥1 in² PCB copper. Derating begins at 5.7 mW/°C above 25°C, limiting usable power to ~0.43 W at +100°C ambient.
Can ZTX753STOB be used in avalanche mode?
No-ZTX753STOB is not characterized or rated for controlled avalanche operation. Its V(BR)CEO = -100 V is a DC breakdown limit; sustained operation near this voltage risks parametric shift or catastrophic failure without external clamping.
Does the device require a base resistor when driven by a 3.3 V microcontroller?
Yes-a series base resistor is mandatory. With VBE(sat) ≈ -0.9 V and required IB = -200 mA for full saturation, a 3.3 V GPIO must use RB ≈ 12 Ω to deliver sufficient drive; verify GPIO current capability and add flyback diode for inductive loads.
ZTX753STOB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- E-Line-3, Formed Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 200mA, 2A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Power - Max:
- 1 W
- Frequency - Transition:
- 140MHz
- Operating Temperature:
- -55°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- E-Line (TO-92 compatible)
ZTX753STOB FAQ
1.How can I place an order for ZTX753STOB through Aetrix?
Please submit a Request for Quotation (RFQ) for ZTX753STOB 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 ZTX753STOB reliable?
The price and inventory of ZTX753STOB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZTX753STOB is usually 5 days.
3.What payment methods are accepted for ZTX753STOB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZTX753STOB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZTX753STOB?
ZTX753STOB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZTX753STOB 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 ZTX753STOB?
For technical support, including ZTX753STOB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZTX753STOB requirements.
6.How does Aetrix verify that ZTX753STOB is sourced from the original manufacturer or authorized distributors?
All ZTX753STOB 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 ZTX753STOB meets industry standards.
7.What is the process for return or replacement of ZTX753STOB?
All ZTX753STOB units undergo pre-shipment inspection (PSI). If there is an issue with ZTX753STOB, 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 ZTX753STOB part is unused and in its original packaging.
Return procedure for ZTX753STOB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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