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Diodes Incorporated ZTX753STZ
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- Part No.:
- ZTX753STZ
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- E-Line-3, Formed Leads
- Datasheet:
-
ZTX753STZ.pdf
- Description:
- TRANS PNP 100V 2A E-LINE
- Quantity:
- Payment:
- Shipping:
Inventory:3,860
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Product details
Overview
ZTX753STZ 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, 140 MHz transition frequency, low −0.3 V typical VCE(sat) at −2 A/−200 mA drive, and operates up to +200 °C junction temperature - used in DC-DC converter output stages and relay drivers.
For engineers reviewing the ZTX753STZ datasheet, ZTX753STZ pinout, ZTX753STZ application, or ZTX753STZ equivalent, key selection criteria include verified PNP polarity, TO-92-compatible package thermal resistance (Rth(j-amb) = 116 °C/W on PCB), safe operating area (SOA) limits at 10 ms–1 s pulse widths, and saturation voltage performance under −2 A load conditions.
Technical Context
This device operates as a medium-power PNP BJT with fixed emitter-base and collector-base breakdown ratings (V(BR)EBO = −5 V, V(BR)CBO = −120 V) and exhibits gain (hFE) of 75–225 at IC = −1 A, VCE = −2 V. Its fT = 140 MHz supports high-speed switching in pulse-width modulation (PWM) circuits.
Thermal design relies on Rth(j-case) = 70 °C/W and Rth(j-amb) = 116 °C/W (on 1 in² copper PCB), enabling stable operation up to Tj = +200 °C. Switching times are ton = 40 ns and toff = 600 ns under −500 mA load and −10 V VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −100 V: Maximum allowable collector-emitter voltage before avalanche in common-emitter configuration. |
| IC (continuous) | −2 A: Sustained collector current rating defining linear and switching load capability. |
| VCE(sat) | −0.3 V typ. at −2 A/−200 mA: Low saturation voltage minimizes conduction loss in high-current switches. |
| fT | 140 MHz: Transition frequency enabling use in >100 kHz PWM and analog signal amplification. |
| Rth(j-amb) | 116 °C/W on 1 in² PCB: Thermal resistance determines required heatsinking for 1 W dissipation at ambient. |
| toff | 600 ns: Turn-off delay critical for minimizing switching losses in high-frequency power stages. |
| Safe Operating Area | Rated for 10 ms pulses at −2 A/−100 V: Defines maximum simultaneous voltage/current stress without second breakdown. |
Pinout & Package
Package: TO-92 compatible (E-Line), epoxy-molded, through-hole mounting. Dimensions and lead spacing match standard TO-92 footprint for drop-in PCB replacement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (E) | Current sink terminal for PNP operation | Connected to higher potential rail; defines reference for base drive and collector current direction. |
| Base (B) | Control input for minority-carrier injection | Requires negative current relative to emitter to forward-bias BE junction and enable conduction. |
| Collector (C) | Output current terminal | Carries load current from emitter; voltage swing limited by V(BR)CEO = −100 V rating. |
Key Features
| Feature | Design Value |
|---|---|
| High VCEO rating | −100 V enables use in 48 V and 72 V industrial bus systems with margin. |
| Low VCE(sat) | −0.3 V typical at full −2 A load reduces power loss to ≤ 0.6 W in saturated switch mode. |
| High fT | 140 MHz supports clean square-wave switching up to ~10 MHz with minimal rise/fall degradation. |
| Extended Tj range | +200 °C max junction temperature allows operation in sealed enclosures or near heat sources. |
| Robust SOA | 10 ms pulse rating at −2 A/−100 V supports motor stall and inductive kickback protection. |
Applications
| DC-DC Converter Output Stage | Industrial Relay Driver |
|---|---|
Use Scenario: High-side switching in non-isolated buck or flyback converters delivering 1–3 A loads at 24–48 V input. IC Role / Device Role / Timing Role: PNP pass transistor controlling current flow from input rail to output inductor, driven by complementary NPN/PNP gate driver. Use Value: −100 V VCEO and −2 A IC support 48 V bus designs; low VCE(sat) keeps conduction loss below 0.6 W at full load. | Use Scenario: Driving 24 VDC industrial relays with coil resistance 100–500 Ω in PLC I/O modules. IC Role / Device Role / Timing Role: Medium-power switch sinking relay coil current when base is pulled low by microcontroller GPIO. Use Value: −2 A rating handles peak inrush currents; 600 ns toff ensures fast de-energization and contact bounce suppression. |
| Motor Control H-Bridge Leg | Overvoltage Protection Circuit |
Use Scenario: Upper-leg PNP switch in discrete H-bridge for 12–24 V brushed DC motors in factory automation. IC Role / Device Role / Timing Role: High-side current source controlled via level-shifted base drive; paired with N-channel MOSFET or NPN low-side switch. Use Value: 140 MHz fT and 40 ns ton allow PWM frequencies ≥20 kHz to eliminate audible noise; SOA withstands motor back-EMF transients. | Use Scenario: Crowbar circuit clamping supply rails during overvoltage events in power supplies or battery management systems. IC Role / Device Role / Timing Role: Fast-turn-on PNP shunt switch triggered by comparator detecting >50 V rail excursion. Use Value: −120 V V(BR)CBO provides headroom above 100 V fault thresholds; 600 ns toff ensures rapid recovery after transient clearance. |
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 | TO-220 package, higher Ptot = 115 W, VCEO = −70 V, slower fT = 3 MHz | Better thermal handling for >5 A continuous loads; unsuitable for >100 kHz switching | Select when board space permits TO-220 and thermal budget exceeds 1 W. |
| ZTX757 | Same TO-92 package, VCEO = −120 V, IC = −1.5 A, VCE(sat) = −0.4 V typ. at −1 A | Higher voltage margin but lower current and higher saturation loss | Select when system requires >100 V blocking but load current stays ≤1.5 A. |
Compared with MJD2955G and ZTX757, ZTX753STZ uniquely balances TO-92 mountability, 140 MHz speed, and −100 V/−2 A ratings - making it optimal for space-constrained, medium-frequency industrial switching where thermal load remains ≤1 W.
Availability
ZTX753STZ is available at Aetrix Electronics and suitable for DC-DC converter output stages, industrial relay drivers, motor control H-bridge legs, and overvoltage protection circuits requiring stable component supply across production lifecycles.
Supply support for ZTX753STZ 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 centers across Asia and manufacturing in China, Taiwan, and the U.S.
ZTX753STZ belongs to the ZTX series of high-voltage, medium-power BJTs engineered for industrial power switching and linear amplification where reliability under thermal stress and voltage transients is critical.
FAQ
Is ZTX753STZ RoHS compliant and halogen-free?
Yes, ZTX753STZ meets RoHS Directive 2011/65/EU and is certified halogen-free per IEC 61249-2-21. The device uses lead-free matte tin plating on leads and complies with JEDEC J-STD-020 moisture sensitivity level (MSL) 1 for unlimited floor life at ≤30 °C/85% RH.
What is the maximum safe continuous power dissipation at 70°C ambient?
At Tamb = 70 °C, derated power is calculated as Ptot = 1 W − [(70 − 25) × 5.7 mW/°C] = 0.74 W. This assumes standard PCB mounting with ≥1 in² copper; exceeding this requires forced air or heatsink to maintain Tj ≤ +200 °C.
Can ZTX753STZ replace ZTX752STZ in existing designs?
Yes, ZTX753STZ is a direct upgrade: it offers higher VCEO (−100 V vs. −80 V), higher V(BR)CBO (−120 V vs. −100 V), identical pinout and package, and same −2 A IC rating. No layout or drive changes are needed; improved voltage margin enhances robustness in noisy industrial environments.
Does ZTX753STZ require base current limiting in switching applications?
Yes - base current must be limited to prevent damage. For −2 A IC, minimum IB = −200 mA (hFE ≥ 10). With VBE(sat) ≈ −1.25 V, a series resistor from microcontroller (e.g., 3.3 V GPIO) should be ≥ (3.3 − 1.25)/0.2 = 10.3 Ω to avoid excessive base drive and secondary breakdown risk.
ZTX753STZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- E-Line-3, Formed Leads
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- 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):
- 10µA (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)
ZTX753STZ FAQ
1.How can I place an order for ZTX753STZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ZTX753STZ 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 ZTX753STZ reliable?
The price and inventory of ZTX753STZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZTX753STZ is usually 5 days.
3.What payment methods are accepted for ZTX753STZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZTX753STZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZTX753STZ?
ZTX753STZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZTX753STZ 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 ZTX753STZ?
For technical support, including ZTX753STZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZTX753STZ requirements.
6.How does Aetrix verify that ZTX753STZ is sourced from the original manufacturer or authorized distributors?
All ZTX753STZ 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 ZTX753STZ meets industry standards.
7.What is the process for return or replacement of ZTX753STZ?
All ZTX753STZ units undergo pre-shipment inspection (PSI). If there is an issue with ZTX753STZ, 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 ZTX753STZ part is unused and in its original packaging.
Return procedure for ZTX753STZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZTX753STZ Tags
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