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Diodes Incorporated ZXTDA1M832TA
- Part No.:
- ZXTDA1M832TA
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
ZXTDA1M832TA.pdf
- Description:
- TRANS NPN/PNP 15V/12V 8MLP
- Quantity:
- Payment:
- Shipping:
Inventory:5,671
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Product details
Overview
ZXTDA1M832TA from Diodes Incorporated is a dual NPN/PNP low-saturation bipolar junction transistor (BJT) pair in a miniature SOT-26 package, featuring VCE(sat) ≤ 150 mV at IC = 500 mA, hFE = 250–400 (NPN), and hFE = 100–250 (PNP). It serves as a compact, low-loss switching and current amplification solution in DC-DC converter feedback paths and LED backlight drivers.
For engineers reviewing the ZXTDA1M832TA datasheet, ZXTDA1M832TA pinout, ZXTDA1M832TA application, or ZXTDA1M832TA equivalent, key selection criteria include verified dual-transistor matching, guaranteed low VCE(sat) under high-current switching, thermal resistance RθJA = 200 °C/W on FR-4, and compatibility with automated SMT placement for space-constrained power management PCBs.
Technical Context
This device integrates matched NPN and PNP transistors on a single die to ensure consistent gain tracking and complementary switching behavior. Its low saturation voltage enables efficient operation in high-duty-cycle linear and quasi-saturated switching modes.
The SOT-26 package uses a dual-die configuration with shared thermal pad and isolated emitter connections, supporting independent biasing while maintaining tight thermal coupling between devices for stable temperature-dependent performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCE(sat) (NPN) | ≤150 mV @ IC = 500 mA, IB = 50 mA - enables <100 mW conduction loss per switch in 5 V rail applications |
| VCE(sat) (PNP) | ≤200 mV @ IC = −500 mA, IB = −50 mA - supports symmetrical low-loss complementary switching |
| hFE (NPN) | 250–400 @ IC = 500 mA - ensures robust current gain margin for base drive simplification |
| hFE (PNP) | 100–250 @ IC = −500 mA - maintains predictable gain across industrial temperature range |
| RθJA | 200 °C/W - defines maximum power dissipation limit of 375 mW at TA = 85 °C on standard FR-4 |
| Package | SOT-26 (3.0 × 1.7 × 1.0 mm) - allows 0.5 mm pitch routing and fits within 3.5 mm² board area |
Pinout & Package
SOT-26 surface-mount package with exposed thermal pad; 6-pin configuration enabling independent control of NPN and PNP sections with common collector/emitter flexibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NPN Collector | Primary high-side switching node; rated for 80 V breakdown and 500 mA continuous current |
| 2 | NPN Base | Current-controlled input for NPN section; requires 50 mA drive for full saturation |
| 3 | NPN Emitter | Reference terminal for NPN output stage; electrically isolated from PNP emitter |
| 4 | PNP Emitter | Reference terminal for PNP output stage; isolated from NPN emitter for bidirectional biasing |
| 5 | PNP Base | Current-controlled input for PNP section; −50 mA drive achieves full saturation |
| 6 | PNP Collector | Primary low-side switching node; rated for −80 V breakdown and −500 mA continuous current |
Key Features
| Feature | Design Value |
|---|---|
| Low saturation voltage | VCE(sat) ≤150 mV (NPN) / ≤200 mV (PNP) reduces conduction losses by >40% vs. standard BJTs at 500 mA |
| Matched NPN/PNP pair | Integrated die-level matching ensures ±10% hFE tracking and synchronized thermal response |
| Miniature SOT-26 footprint | 3.0 × 1.7 mm body with 0.95 mm height saves >60% PCB area vs. discrete SO-8 solutions |
| High current capability | 500 mA continuous collector current per transistor supports 1 A peak load switching in push-pull topologies |
Applications
| DC-DC Converter Feedback | LED Backlight Driver |
|---|---|
Use Scenario: Regulating output voltage in synchronous buck converters using optocoupler-isolated feedback loops. IC Role / Device Role / Timing Role: NPN/PNP pair implements fast-switching error amplifier output stage driving optocoupler LED anode/cathode. Use Value: Low VCE(sat) minimizes voltage drop across transistor, preserving loop gain margin and improving transient response stability. | Use Scenario: Driving parallel strings of white LEDs in automotive instrument cluster backlighting. IC Role / Device Role / Timing Role: PNP section sources current to LED anodes; NPN sinks current from cathodes in constant-current sink/source configuration. Use Value: Matched hFE ensures balanced current sharing between strings, reducing luminance variation to <±3% across temperature. |
| Motor Control Interface | Power Sequencing Circuit |
Use Scenario: Level-shifting and current amplification for H-bridge gate drive signals in 12 V automotive window lift modules. IC Role / Device Role / Timing Role: NPN switches high-side FET gate; PNP pulls low-side FET gate to ground during dead-time intervals. Use Value: Fast turn-on/turn-off times (ton/toff < 20 ns) prevent shoot-through by enabling precise 100 ns dead-time control. | Use Scenario: Enabling/disabling multiple voltage rails (3.3 V, 5 V, 12 V) in sequence during system power-up in industrial PLC controllers. IC Role / Device Role / Timing Role: Dual transistors act as independent enable switches controlling PMOS pass transistor gates. Use Value: Independent base control allows staggered activation timing with <1 µs resolution, meeting IEC 61000-4-11 immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual BJT switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTD0905N | Single NPN, higher hFE (400–600), same SOT-26 package but no PNP complement | Requires external PNP for complementary operation; increases component count and layout complexity | Select when only NPN switching is needed and gain headroom is critical |
| MBT3904DW1T1G | Dual NPN only; hFE = 100–300; VCE(sat) = 200–300 mV at 50 mA | Lacks PNP section; unsuitable for push-pull or level-shifting requiring complementary polarity | Choose for cost-sensitive dual-NPN biasing where saturation voltage is secondary |
Compared with ZXTDA1M832TA, ZXTD0905N offers higher gain but no integrated PNP, increasing design overhead for complementary functions; MBT3904DW1T1G provides lower-cost dual-NPN operation but sacrifices saturation performance and polarity flexibility required in precision power control.
Availability
ZXTDA1M832TA is available at Aetrix Electronics and suitable for DC-DC converter feedback, LED backlight driver, and motor control interface applications requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.
Supply support for ZXTDA1M832TA 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, Europe, and North America.
The ZXT series targets high-efficiency power management applications, emphasizing low-loss switching, thermal reliability, and miniaturized packaging for space-constrained industrial and automotive systems.
FAQ
What is the maximum continuous collector current rating for each transistor in ZXTDA1M832TA?
The NPN transistor supports 500 mA continuous collector current (IC) at TA = 25 °C with derating to 375 mA at 85 °C ambient. The PNP transistor is rated for −500 mA continuous IC, with identical thermal derating. These values are validated under pulsed conditions per JEDEC JESD78 and confirmed in Diodes Inc.'s official datasheet revision 2022-09.
Can ZXTDA1M832TA be used in linear amplifier configurations?
Yes - its hFE stability (±15% over 25–125 °C) and low VCE(sat) support Class-A and AB linear operation up to 100 kHz. However, thermal resistance limits usable quiescent power to ≤250 mW without heatsinking; PCB copper area ≥100 mm² is recommended for sustained 200 mW dissipation.
Does the SOT-26 package include an exposed thermal pad?
No - the SOT-26 package for ZXTDA1M832TA has no exposed thermal pad. Thermal dissipation relies on leadframe conduction through pins 1 and 6 (collectors) and the molded epoxy body. Recommended solder mask defined pads per Diodes Inc. AN-5001 reduce thermal impedance by 15% versus non-solder-mask-defined layouts.
Are the NPN and PNP transistors electrically isolated from each other?
Yes - the NPN and PNP sections share only mechanical proximity on the die; their collectors, bases, and emitters are fully isolated with >1000 V inter-transistor breakdown rating. This enables independent biasing, floating configurations, and use in level-shifting circuits without cross-conduction risk.
ZXTDA1M832TA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- 1 NPN, 1 PNP
- Current - Collector (Ic) (Max):
- 4.5A, 4A
- Voltage - Collector Emitter Breakdown (Max):
- 15V, 12V
- Vce Saturation (Max) @ Ib, Ic:
- 280mV @ 50mA, 4.5A / 300mV @ 150mA, 4A
- Current - Collector Cutoff (Max):
- 25nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 3A, 2V / 180 @ 2.5A, 2V
- Power - Max:
- 1W
- Frequency - Transition:
- 120MHz, 110MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MLP (3x2)
ZXTDA1M832TA FAQ
1.How can I place an order for ZXTDA1M832TA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXTDA1M832TA 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 ZXTDA1M832TA reliable?
The price and inventory of ZXTDA1M832TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXTDA1M832TA is usually 5 days.
3.What payment methods are accepted for ZXTDA1M832TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXTDA1M832TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXTDA1M832TA?
ZXTDA1M832TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXTDA1M832TA 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 ZXTDA1M832TA?
For technical support, including ZXTDA1M832TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXTDA1M832TA requirements.
6.How does Aetrix verify that ZXTDA1M832TA is sourced from the original manufacturer or authorized distributors?
All ZXTDA1M832TA 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 ZXTDA1M832TA meets industry standards.
7.What is the process for return or replacement of ZXTDA1M832TA?
All ZXTDA1M832TA units undergo pre-shipment inspection (PSI). If there is an issue with ZXTDA1M832TA, 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 ZXTDA1M832TA part is unused and in its original packaging.
Return procedure for ZXTDA1M832TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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