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Diodes Incorporated ZXPD4000DH-7
- Part No.:
- ZXPD4000DH-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Special Purpose
- Package:
- 8-VDFN
- Datasheet:
-
ZXPD4000DH-7.pdf
- Description:
- PRINTER HEAD DRIVER V-DFN3030-8
- Quantity:
- Payment:
- Shipping:
Inventory:6,692
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Product details
Overview
ZXPD4000DH-7 from Diodes Incorporated is an obsolete NPN Darlington transistor integrated with a 120 V rectifier diode in a V-DFN3030-8 package, delivering hFE ≥ 2000 at IC = 1 A, VCE = 2 V, and supporting continuous collector current up to 2 A and peak diode surge current of 15 A; it was engineered for high-gain, compact printer head driver circuits requiring integrated flyback protection.
For engineers reviewing the ZXPD4000DH-7 datasheet, ZXPD4000DH-7 pinout, ZXPD4000DH-7 application, or ZXPD4000DH-7 equivalent, key selection considerations include its dual-function topology (Darlington + diode), thermal resistance (139 °C/W on 25 mm × 25 mm FR-4), and obsolete status requiring cross-reference evaluation before design-in.
Technical Context
This device integrates a high-current-gain NPN Darlington transistor and a fast-recovery rectifier diode in a single monolithic die within a thermally enhanced V-DFN3030-8 package. Its Darlington configuration provides low base drive requirement (IB = 1 mA for IC = 1 A) and high VCEO/VRRM ratings (120 V each), enabling robust switching in inductive load applications.
The diode exhibits tRR = 300–450 ns and VFM ≤ 0.98 V at IF = 1 A, while the transistor achieves VCE(sat) ≤ 1.5 V and VBE(sat) ≤ 2 V under same conditions - jointly optimizing energy efficiency and thermal margin in pulsed-load drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO / VRRM | 120 V - Enables safe operation across 24–48 V industrial bus systems with margin for inductive kickback. |
| hFE | 2000 min @ IC = 1 A - Reduces required base drive current by >10× vs. standard BJT, easing MCU GPIO sourcing. |
| IC (cont.) / IF(AV) | 2 A / 1 A - Supports sustained printer head coil currents without external heat sinking on standard PCB layouts. |
| tRR | 300–450 ns - Limits reverse recovery loss during high-frequency PWM switching in stepper or solenoid drivers. |
| RθJA | 139 °C/W - Specifies junction-to-ambient thermal resistance on 25 mm × 25 mm 1 oz copper, defining max power derating. |
| VCE(sat) | ≤1.5 V @ IC = 1 A - Minimizes conduction loss and self-heating in high-duty-cycle print head activation. |
Pinout & Package
Package: V-DFN3030-8 - 3.0 mm × 3.0 mm × 0.8 mm molded plastic body with NiPdAu-plated terminals, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| B | Base | Input control terminal for Darlington pair; requires current-limited drive due to high hFE. |
| E | Emitter | Common emitter node for transistor; tied internally to cathode of integrated diode. |
| C | Collector | High-side switch output; connects to load anode in high-side driver configurations. |
| k | Diode cathode | Internally connected to E; provides flyback path for inductive loads when C is switched. |
| NC | No Connect | Two pins (positions 2 and 4 per bottom view) are unconnected; must remain floating or grounded per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-function integration | Single-package combination of Darlington switch and 120 V rectifier eliminates discrete diode placement and routing complexity. |
| High DC current gain | hFE ≥ 2000 enables direct drive from low-power microcontrollers without external pre-driver stages. |
| Thermally optimized package | V-DFN3030-8 delivers 139 °C/W RθJA on standard FR-4, supporting 0.9 W dissipation without heatsink. |
| Automotive-capable construction | Lead-free, halogen-free, and antimony-free "Green" molding compound meets RoHS 3 and IATF 16949 manufacturing requirements. |
Applications
| Printer Head Drivers | Industrial Solenoid Controllers |
|---|---|
Use Scenario: Driving resistive-inductive print head coils in thermal or dot-matrix printers with rapid on/off cycling. IC Role / Device Role / Timing Role: High-gain Darlington switch providing low-base-current, high-current sink capability; integrated diode clamps inductive voltage spikes. Use Value: Eliminates need for external flyback diode and reduces PCB area by ~25% versus discrete solutions. |
Use Scenario: Controlling 24–48 V DC solenoids in factory automation valves and pneumatic actuators. IC Role / Device Role / Timing Role: Single-chip switching and protection element handling repetitive 1–2 A pulses with <1.5 V saturation drop. Use Value: Ensures reliable turn-off with tRR ≤ 450 ns, minimizing energy loss and contact arcing in mechanical relays. |
| POS Terminal Print Mechanisms | Point-of-Load Relay Drivers |
Use Scenario: Compact receipt printer modules in space-constrained retail POS terminals. IC Role / Device Role / Timing Role: Low-profile V-DFN3030-8 package enables <3 mm² board footprint while sustaining 2 A continuous load. Use Value: Achieves 0.02 g weight and 3.0 mm × 3.0 mm outline - critical for portable, battery-powered devices. |
Use Scenario: Driving electromechanical relays in building management systems where space and thermal budget are limited. IC Role / Device Role / Timing Role: Combines switching function and clamp protection in one component, reducing bill-of-materials count. Use Value: Delivers 15 A non-repetitive surge tolerance, protecting against relay coil de-energization transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Darlington + diode integrated switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXPD3000DH-7 | Lower VCEO/VRRM (80 V), hFE ≥ 1000, same V-DFN3030-8 package | Suitable only for ≤36 V systems; reduced surge margin for inductive loads | Select if operating voltage is ≤36 V and cost optimization is prioritized over 120 V headroom. |
| ULN2003A | 7-channel Darlington array in SO-16, no integrated diode, VCEO = 50 V, hFE ≈ 1000 | Requires external diodes per channel; larger footprint and higher drive complexity | Choose for multi-load control where channel count outweighs size and integration benefits. |
Compared with ZXPD3000DH-7 and ULN2003A, the ZXPD4000DH-7 uniquely offers 120 V rating and highest hFE in a single-channel DFN package - making it optimal for space-constrained, high-voltage printer and solenoid drivers despite its obsolete status.
Availability
ZXPD4000DH-7 is available at Aetrix Electronics and suitable for printer head drivers, industrial solenoid controllers, POS terminal mechanisms, and point-of-load relay drivers requiring stable component supply despite its obsolete designation.
Supply support for ZXPD4000DH-7 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 consumer markets.
The ZXPD4000DH-7 belongs to Diodes' integrated power transistor family, designed specifically for compact, high-efficiency inductive load switching in space- and thermal-constrained applications.
FAQ
Is ZXPD4000DH-7 still in active production?
No, ZXPD4000DH-7 is officially marked obsolete by Diodes Incorporated per DS37423 Rev. 2–4. It is no longer manufactured, but Aetrix Electronics maintains legacy inventory with full traceability and supports last-time-buy programs for qualified customers.
What is the recommended replacement for ZXPD4000DH-7?
Diodes recommends evaluating ZXPD3000DH-7 for ≤36 V applications or designing with discrete Darlington + diode combinations using ZXTN25012F and BAV21W. No direct pin-compatible replacement exists for the 120 V, high-hFE specification in V-DFN3030-8.
Can ZXPD4000DH-7 be used in automotive applications?
While not AEC-Q101 qualified, the ZXPD4000DH-7 is built in IATF 16949-certified facilities and uses halogen/antimony-free "Green" materials. Customers requiring automotive qualification must contact Diodes directly for PPAP-capable alternatives.
What is the maximum safe operating temperature for ZXPD4000DH-7?
The device supports junction temperatures from –55 °C to +150 °C. At ambient 25 °C on a 25 mm × 25 mm FR-4 board, maximum continuous power is 0.9 W - corresponding to ~125 °C junction temperature under worst-case RθJA = 139 °C/W.
ZXPD4000DH-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-VDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN - Darlington
- Applications:
- General Purpose
- Voltage - Rated:
- 120V
- Current Rating (Amps):
- 2A
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- V-DFN3030-8
ZXPD4000DH-7 FAQ
1.How can I place an order for ZXPD4000DH-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXPD4000DH-7 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 ZXPD4000DH-7 reliable?
The price and inventory of ZXPD4000DH-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXPD4000DH-7 is usually 5 days.
3.What payment methods are accepted for ZXPD4000DH-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXPD4000DH-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXPD4000DH-7?
ZXPD4000DH-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXPD4000DH-7 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 ZXPD4000DH-7?
For technical support, including ZXPD4000DH-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXPD4000DH-7 requirements.
6.How does Aetrix verify that ZXPD4000DH-7 is sourced from the original manufacturer or authorized distributors?
All ZXPD4000DH-7 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 ZXPD4000DH-7 meets industry standards.
7.What is the process for return or replacement of ZXPD4000DH-7?
All ZXPD4000DH-7 units undergo pre-shipment inspection (PSI). If there is an issue with ZXPD4000DH-7, 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 ZXPD4000DH-7 part is unused and in its original packaging.
Return procedure for ZXPD4000DH-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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