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onsemi 2SD1624T-TD-E
- Part No.:
- 2SD1624T-TD-E
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-243AA
- Datasheet:
-
2SD1624T-TD-E.pdf
- Description:
- TRANS NPN 50V 3A PCP
- Quantity:
- Payment:
- Shipping:
Inventory:1,800
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Product details
Overview
2SD1624T-TD-E from onsemi is an NPN bipolar junction transistor in PCP (SOT-89) package, rated for 50 V VCEO, 3 A IC, and 500 mW PC at Ta=25°C (1.5 W on ceramic substrate), with low VCE(sat) of 0.19 V at IC=2 A/IB=100 mA, optimized for relay and lamp driver circuits in industrial control systems.
For engineers reviewing the 2SD1624T-TD-E datasheet, pinout, applications, or equivalent options, key selection criteria include verified VCE(sat) performance at high current, fT = 150 MHz switching capability, hFE rank T (200–400 @ IC=100 mA), and Pb-free TD reel packaging compatibility with automated SMT assembly.
Technical Context
This NPN transistor uses FBET and MBIT processes to achieve low saturation voltage and fast switching-ton = 70 ns, tf = 35 ns-with wide SOA enabling robust operation under pulsed loads up to ICP = 6 A. Its V(BR)CEO = 50 V and V(BR)CBO = 60 V support stable biasing in medium-voltage regulator and driver stages.
The device operates across Tstg = –55°C to +150°C and Tj = 150°C, with Cob = 25 pF at VCB = –10 V, f = 1 MHz, ensuring predictable high-frequency behavior in discrete amplifier and switch-mode interface designs where thermal management on ceramic substrates is feasible.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Supports operation in 24–48 V DC control rails without breakdown risk. |
| IC | 3 A continuous - Handles full-load current in relay coils and LED arrays without derating on ceramic substrate. |
| VCE(sat) | 0.19 V max at IC=2 A/IB=100 mA - Minimizes conduction loss and self-heating in high-duty-cycle switching. |
| fT | 150 MHz - Enables clean square-wave response in PWM-driven lamp/relay drivers up to ~10 MHz fundamental. |
| hFE (Rank T) | 200–400 at VCE=2 V, IC=100 mA - Ensures reliable base drive margin for 10–20× current gain in discrete logic-level interfaces. |
| PC (ceramic) | 1.5 W - Allows sustained 3 A operation with <10°C/W effective thermal resistance when mounted per JEDEC SC-62 layout. |
Pinout & Package
2SD1624T-TD-E is housed in a PCP package (JEITA SC-62 / JEDEC SOT-89 / TO-243), with 3-pin surface-mount configuration optimized for thermal dissipation via exposed collector tab. Dimensions: 4.5 mm × 2.5 mm × 1.6 mm (L×W×H), mass = 0.058 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input requiring ~100 mA IB for full saturation at 2 A IC; low VBE(sat) = –1.2 V ensures TTL/CMOS-compatible drive. |
| 2 | Collector | Main power output terminal; electrically connected to exposed metal tab for direct thermal coupling to PCB copper pour or heatsink. |
| 3 | Emitter | Common return path; tied to system ground or low-side load reference; supports reverse-biased safe operating area during turn-off. |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | 0.19 V max enables <0.4 W conduction loss at 2 A, reducing thermal stress in compact industrial enclosures. |
| Fast switching | ton = 70 ns / tf = 35 ns allows >5 MHz PWM operation with minimal overlap loss in discrete half-bridge drivers. |
| Wide SOA | Rated for 6 A pulsed current (100 ms) and large forward-biased safe operating area supports inductive load snubbing. |
| Process-optimized gain | hFE Rank T (200–400) provides consistent current amplification across production lots for deterministic base resistor design. |
Applications
| Relay Driver Circuit | Lamp Driver Module |
|---|---|
|
Use Scenario: Driving 24 VDC electromagnetic relays with 100–300 Ω coil impedance in PLC I/O modules. IC Role / Device Role / Timing Role: NPN switch controlling coil current path; handles 2–3 A inrush and steady-state load. Use Value: Low VCE(sat) minimizes relay coil voltage drop, ensuring reliable pull-in at minimum supply voltage; fast tf prevents contact chatter during rapid cycling. |
Use Scenario: Switching 12–48 V incandescent or halogen lamps in building automation and signage systems. IC Role / Device Role / Timing Role: High-current discrete switch replacing mechanical contacts to eliminate wear and arcing. Use Value: 1.5 W ceramic-mount power rating sustains 3 A lamp current continuously; wide SOA tolerates cold-filament inrush surges up to 6 A. |
| Voltage Regulator Pass Element | Industrial Equipment Interface |
|
Use Scenario: Series pass transistor in linear regulators delivering 1–3 A at 5–24 V for sensor signal conditioning boards. IC Role / Device Role / Timing Role: Adjustable current source controlled by error amplifier feedback loop. Use Value: Stable hFE over temperature ensures predictable regulation accuracy; low VCE(sat) improves efficiency and reduces heatsink requirements. |
Use Scenario: Level-shifting and isolation interface between microcontroller GPIOs and 24 V field devices (solenoids, indicators). IC Role / Device Role / Timing Role: Digital output buffer providing galvanically isolated, high-current sinking capability. Use Value: Fast ton/tf supports real-time status updates at >10 kHz; Pb-free TD reel packaging ensures RoHS-compliant manufacturing traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN switching transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2SD1624T-TD-H | Identical electrical specs and package; halogen-free construction replaces brominated flame retardants. | Required for strict environmental compliance (e.g., EU medical equipment, automotive interiors). | Select when halogen-free certification (IEC 61249-2-21) is mandated; no layout or thermal changes needed. |
| MJD122G | Higher VCEO = 100 V, lower hFE = 20–100, larger TO-252 package; PC = 1.5 W same rating but different thermal path. | Better suited for 72–100 V industrial bus interfaces; less suitable for space-constrained SOT-89 layouts. | Choose MJD122G only if higher voltage margin or alternate footprint is required; not a drop-in replacement. |
Compared with 2SD1624T-TD-E, the TD-H variant offers identical performance with enhanced environmental compliance, while MJD122G trades compactness and gain linearity for higher voltage tolerance and different thermal mounting-making 2SD1624T-TD-E optimal for cost-sensitive, space-limited 24–48 V driver designs.
Availability
2SD1624T-TD-E is available at Aetrix Electronics and suitable for relay drivers, lamp drivers, and voltage regulators requiring stable component supply with Pb-free compliance and SMT-ready reel packaging.
Supply support for 2SD1624T-TD-E 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
2SD1624T-TD-E belongs to onsemi's general-purpose bipolar transistor product line, designed specifically for high-reliability discrete switching in industrial control, power management, and interface applications where low saturation voltage and fast response are critical.
FAQ
What is the maximum continuous collector current rating for 2SD1624T-TD-E?
The 2SD1624T-TD-E is rated for 3 A continuous collector current (IC) at ambient temperature Ta = 25°C when mounted on a ceramic substrate (250 mm² × 0.8 mm). Derating applies above 25°C per the PC–Ta curve; at 75°C ambient, usable IC drops to approximately 2.2 A for safe operation.
Does 2SD1624T-TD-E support pulse operation beyond its DC current rating?
Yes, the 2SD1624T-TD-E supports pulsed collector current up to 6 A (ICP) for durations ≤100 ms with duty cycle ≤10%, as specified in its Absolute Maximum Ratings. This enables handling of inductive load inrush currents in relay and lamp applications without exceeding SOA limits.
What does the "T" in 2SD1624T-TD-E signify for hFE grading?
The "T" suffix in 2SD1624T-TD-E indicates hFE Rank T, meaning DC current gain is binned between 200 and 400 at VCE = 2 V and IC = 100 mA. This tighter binning ensures predictable base drive requirements and consistent switching behavior across production lots of the 2SD1624T-TD-E.
Is 2SD1624T-TD-E compatible with lead-free reflow soldering profiles?
Yes, 2SD1624T-TD-E is Pb-free and qualified for standard lead-free reflow soldering (J-STD-020), with peak temperature tolerance up to 260°C for 10 seconds. Its PCP (SOT-89) package and TD reel packaging are fully compliant with RoHS Directive 2011/65/EU and IPC-J-STD-020D.2.
How does the thermal performance of 2SD1624T-TD-E compare between PCB mount and ceramic substrate?
When mounted on a ceramic substrate (250 mm² × 0.8 mm), the 2SD1624T-TD-E achieves 1.5 W collector dissipation (PC). On standard FR-4 PCB with recommended land pattern, PC is limited to 500 mW at Ta = 25°C. The ceramic mount reduces thermal resistance by ~65%, enabling full 3 A current capability without external heatsinking.
2SD1624T-TD-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 3 A
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 100mA, 2A
- Current - Collector Cutoff (Max):
- 1µA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 100mA, 2V
- Power - Max:
- 500 mW
- Frequency - Transition:
- 150MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PCP
2SD1624T-TD-E FAQ
1.How can I place an order for 2SD1624T-TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SD1624T-TD-E 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 2SD1624T-TD-E reliable?
The price and inventory of 2SD1624T-TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SD1624T-TD-E is usually 5 days.
3.What payment methods are accepted for 2SD1624T-TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SD1624T-TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SD1624T-TD-E?
2SD1624T-TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SD1624T-TD-E 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 2SD1624T-TD-E?
For technical support, including 2SD1624T-TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SD1624T-TD-E requirements.
6.How does Aetrix verify that 2SD1624T-TD-E is sourced from the original manufacturer or authorized distributors?
All 2SD1624T-TD-E 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 2SD1624T-TD-E meets industry standards.
7.What is the process for return or replacement of 2SD1624T-TD-E?
All 2SD1624T-TD-E units undergo pre-shipment inspection (PSI). If there is an issue with 2SD1624T-TD-E, 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 2SD1624T-TD-E part is unused and in its original packaging.
Return procedure for 2SD1624T-TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
2SD1624T-TD-E Tags
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