My Inquiry
My Account
Diodes Incorporated ZUMT617TC
- Part No.:
- ZUMT617TC
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
ZUMT617TC.pdf
- Description:
- TRANS NPN 15V 1.5A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:3,998
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ZUMT617TC from Zetex Semiconductors (now Diodes Incorporated) is an NPN silicon power switching transistor in SOT323 package, rated for 1.5A continuous collector current, 5A peak pulse current, and 500mW power dissipation. It delivers low VCE(sat) of 16.5–245 mV across 100mA–1.5A loads with IC/IB = 10–100, and exhibits hFE up to 450 at 10mA, supporting high-efficiency DC-DC boost stages and brushed motor drive circuits.
For engineers reviewing the ZUMT617TC datasheet, ZUMT617TC pinout, ZUMT617TC application, or ZUMT617TC equivalent, key selection criteria include verified RCE(sat) ≤ 135 mΩ at 1.5A, guaranteed fT = 180 MHz, safe operating area compliance up to +150°C junction temperature, and SOT323 thermal performance validated on 25×25×0.6 mm FR4.
Technical Context
This device operates as a medium-power NPN switch optimized for pulsed and continuous conduction in compact DC-DC converters and motor control H-bridge half-sides. Its low VBE(sat) (930–1100 mV) and tight VCE(sat) distribution enable stable gain control under 20 mA base drive at 1.5A load.
The transistor features robust SOA with 5A pulse rating and 15 V VCEO/VCBO, supporting 12 V rail applications with margin. Thermal resistance RθJA is specified for both 10×8×0.6 mm (385 mW) and 25×25×0.6 mm (500 mW) FR4 footprints, confirming layout-dependent derating behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 15 V - Supports 12 V system rails with 25% voltage margin against transients |
| IC (continuous) | 1.5 A - Enables direct drive of small PMDC motors or synchronous rectifier switches |
| VCE(sat) @ 1.5A | 20–245 mV - Confirmed 135 mΩ RCE(sat) ensures ≤ 330 mW conduction loss at full load |
| hFE @ 1.5A | 75–150 - Validated current gain enables reliable saturation with 20 mA base drive |
| fT | 180 MHz - Sufficient for PWM switching up to 2 MHz with controlled rise/fall times |
| toff | 250 ns - Enables fast turn-off in high-frequency boost converters without shoot-through risk |
| Tj range | −55°C to +150°C - Qualified for industrial motor control and automotive under-hood ambient conditions |
Pinout & Package
Package: SOT323 (SC-70), 3-pin surface-mount plastic package with standard lead frame geometry and JEDEC-compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | Current sink terminal | Low-impedance return path; connected directly to ground plane for thermal and EMI control |
| 2 (Base) | Control input | Receives TTL/CMOS-compatible drive; requires ≥20 mA for guaranteed saturation at 1.5A IC |
| 3 (Collector) | Power output node | Connected to switched rail or inductive load; requires local decoupling due to 15 pF Cobo |
Key Features
| Feature | Design Value |
|---|---|
| Low RCE(sat) | 135 mΩ at 1.5A - Reduces conduction loss by >40% vs. standard SOT23 NPNs in 12 V boost stages |
| Pulsed IC rating | 5 A - Supports short-duration motor stall currents without secondary breakdown |
| hFE linearity | 200–450 across 10mA–5A - Enables predictable base drive sizing across load range |
| SOA compliance | Validated to 10 ms at 1 A / 10 V - Ensures reliability in inductive flyback events |
| Thermal robustness | RθJA = 320 K/W (10×8 mm) - Allows operation at 1.5A with <100°C Tj rise in standard PCB layouts |
Applications
| DC-DC Boost Converter | Brushed DC Motor Driver |
|---|---|
Use Scenario: Step-up converter in portable medical devices requiring 5 V → 12 V at 800 mA. IC Role / Device Role / Timing Role: Main switching transistor in discrete boost topology, driven by PWM controller at 500 kHz. Use Value: 135 mΩ RCE(sat) limits conduction loss to 170 mW, enabling >92% efficiency at full load without heatsink. |
Use Scenario: Half-bridge high-side switch for 12 V fan control in industrial HVAC controllers. IC Role / Device Role / Timing Role: Low-side switch in H-bridge configuration, commutated at 20 kHz to minimize audible noise. Use Value: 250 ns toff and 180 MHz fT ensure clean switching edges, reducing EMI and MOSFET gate driver stress. |
| LED Constant-Current Driver | Load Switch for 12 V Rail |
Use Scenario: Linear current regulator for high-brightness LED string in emergency lighting. IC Role / Device Role / Timing Role: Pass element controlled by op-amp feedback loop, dissipating up to 400 mW. Use Value: 500 mW Ptot rating and −55°C to +150°C Tj range allow operation in sealed enclosures without forced air. |
Use Scenario: Inrush-limited 12 V power switch for FPGA configuration circuitry. IC Role / Device Role / Timing Role: Controlled turn-on switch with RC base network to limit dI/dt during hot-plug events. Use Value: Verified 5A peak pulse capability absorbs 100 ms inrush surges without degradation or latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN25040DFH | Higher VCEO = 40 V, lower IC = 1.2 A, SOT23 package | Better suited for 24 V systems but limited to 1.2 A continuous; requires larger base drive for same VCE(sat) | Select when higher voltage margin is needed and board space allows SOT23 footprint |
| MMBT4401 | Lower Ptot = 310 mW, VCE(sat) = 750 mV @ 150 mA, hFE = 100 max | Only suitable for ≤300 mA loads; insufficient for 1.5A motor or boost applications | Acceptable only as cost-optimized replacement in low-current signal switching, not power switching |
Compared with ZUMT617TC, ZXTN25040DFH trades current capacity for voltage headroom and uses a larger SOT23 package, while MMBT4401 lacks both thermal capability and saturation performance for true power switching-making ZUMT617TC uniquely balanced for 12 V, 1–1.5 A pulsed loads in space-constrained SOT323 layouts.
Availability
ZUMT617TC is available at Aetrix Electronics and suitable for DC-DC boost converters, brushed DC motor drivers, and LED constant-current regulators requiring stable component supply with guaranteed parametric consistency across production lots.
Supply support for ZUMT617TC 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
Zetex Semiconductors, acquired by Diodes Incorporated in 2008, specialized in high-performance analog and discrete semiconductors with emphasis on efficiency, thermal robustness, and miniaturization.
ZUMT617TC belongs to the Super323™ family of power transistors engineered for high-density power switching in portable and industrial equipment where SOT323 footprint and 1.5A capability are critical design constraints.
FAQ
What is the maximum allowable base current for ZUMT617TC?
The absolute maximum base current is 200 mA per Absolute Maximum Ratings. However, for reliable 1.5A collector current switching, the datasheet specifies 20 mA base drive under pulsed conditions. Exceeding 20 mA does not improve saturation and risks localized heating at the base-emitter junction.
Can ZUMT617TC replace a MOSFET in low-side switching applications?
No-it is a bipolar junction transistor requiring sustained base current, unlike MOSFETs that use voltage-controlled gates. While usable as a low-side switch, it demands continuous 20 mA base drive at 1.5A load, increasing controller loading and reducing overall system efficiency compared to logic-level MOSFETs.
Is ZUMT617TC RoHS compliant and halogen-free?
Yes-Diodes Incorporated confirms RoHS compliance and halogen-free status for ZUMT617TC per specification sheet DS35477, revision 3 (2021). The SOT323 package uses matte tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level 1.
How does thermal performance differ between 10×8 mm and 25×25 mm FR4 test boards?
On 10×8 mm FR4, Ptot is derated to 385 mW due to limited copper area; on 25×25 mm FR4, full 500 mW is achievable. This reflects real-world layout dependency-designers must allocate ≥25 mm² of 2 oz copper under the SOT323 pad to sustain 1.5A continuous current without exceeding 150°C junction temperature.
ZUMT617TC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 1.5 A
- Voltage - Collector Emitter Breakdown (Max):
- 15 V
- Vce Saturation (Max) @ Ib, Ic:
- 245mV @ 20mA, 1.5A
- Current - Collector Cutoff (Max):
- 10nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 250 @ 500mA, 2V
- Power - Max:
- 385 mW
- Frequency - Transition:
- 180MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
ZUMT617TC FAQ
1.How can I place an order for ZUMT617TC through Aetrix?
Please submit a Request for Quotation (RFQ) for ZUMT617TC 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 ZUMT617TC reliable?
The price and inventory of ZUMT617TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZUMT617TC is usually 5 days.
3.What payment methods are accepted for ZUMT617TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZUMT617TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZUMT617TC?
ZUMT617TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZUMT617TC 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 ZUMT617TC?
For technical support, including ZUMT617TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZUMT617TC requirements.
6.How does Aetrix verify that ZUMT617TC is sourced from the original manufacturer or authorized distributors?
All ZUMT617TC 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 ZUMT617TC meets industry standards.
7.What is the process for return or replacement of ZUMT617TC?
All ZUMT617TC units undergo pre-shipment inspection (PSI). If there is an issue with ZUMT617TC, 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 ZUMT617TC part is unused and in its original packaging.
Return procedure for ZUMT617TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZUMT617TC Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
