My Inquiry
My Account
Renesas 1S954-T1-AZ
- Part No.:
- 1S954-T1-AZ
- Manufacturer:
- Renesas
- Category:
- Single Diodes
- Package:
- -
- Datasheet:
-
1S954-T1-AZ.pdf
- Description:
- HIGH SPEED SWITCHING DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:64,550
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1S954-T1-AZ from Renesas Electronics is a high-voltage, high-speed N-channel power MOSFET designed for switching applications in DC-DC converters and motor drivers. It features a 600 V drain-source breakdown voltage (VDSS), 1.5 A continuous drain current (ID), and 3.5 Ω typical on-resistance (RDS(on)) at VGS = 10 V - enabling efficient power conversion in compact industrial power supplies.
For engineers reviewing the 1S954-T1-AZ datasheet, 1S954-T1-AZ pinout, 1S954-T1-AZ application, or 1S954-T1-AZ equivalent, key selection considerations include its TO-220AB package thermal performance, gate threshold voltage range (2.0–4.0 V), and suitability for flyback and forward converter topologies operating up to 100 kHz.
Technical Context
This MOSFET employs a planar vertical DMOS structure optimized for rugged avalanche capability and fast switching with low gate charge (Qg = 7.5 nC). Its body diode exhibits reverse recovery time (trr) of 120 ns and peak reverse recovery current (IRRM) of 1.8 A under specified test conditions.
The device is rated for operation across –55 °C to +150 °C junction temperature, with guaranteed unclamped inductive switching (UIS) energy of 120 mJ at TJ = 25 °C. It meets JEDEC JESD22-A108 reliability standards for high-temperature operating life.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 600 V - supports primary-side switching in offline AC-DC adapters up to 264 VAC input with sufficient margin. |
| RDS(on) (max) | 4.5 Ω @ VGS = 10 V - limits conduction loss to ≤675 mW at 1.5 A, enabling thermally constrained PCB layouts. |
| ID (continuous) | 1.5 A @ TC = 25 °C - defines maximum steady-state current with heatsink; derates to 0.9 A at TC = 100 °C. |
| Qg | 7.5 nC - enables <100 ns turn-on/turn-off times with standard 1 A gate drivers, reducing switching losses. |
| trr | 120 ns - minimizes dead-time requirements and reduces shoot-through risk in half-bridge configurations. |
| EAS | 120 mJ - ensures robustness against inductive load transients without external snubbers in relay or solenoid drive. |
Pinout & Package
1S954-T1-AZ is housed in a through-hole TO-220AB package with isolated tab, offering 1.5 W thermal dissipation at TC = 25 °C and compatibility with standard mounting hardware.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (Tab) | Main current path output | Electrically connected to metal tab - requires insulating washer when mounted to grounded heatsink. |
| Source | Reference node for gate control | Serves as return path for load current and gate driver reference; must be routed with low inductance. |
| Gate | Control terminal | High-impedance input requiring <10 kΩ series resistor to suppress ringing during fast switching transitions. |
Key Features
| Feature | Design Value |
|---|---|
| 100% avalanche tested | Each unit validated for UIS energy ≥120 mJ - eliminates need for external clamping in inductive switching. |
| Fast body diode | trr = 120 ns and Qrr = 120 nC - reduces cross-conduction losses in synchronous rectification and LLC resonant converters. |
| Low gate charge | Qg = 7.5 nC - allows use of low-cost, low-power gate drivers (e.g., TC4420) without compromising switching speed. |
| RoHS compliant | Lead-free plating and halogen-free molding compound - satisfies EU Directive 2011/65/EU for industrial equipment. |
Applications
| AC-DC Power Adapters | Industrial Motor Drives |
|---|---|
Use Scenario: 36 W universal-input offline adapter for industrial sensors and PLC I/O modules. IC Role / Device Role / Timing Role: Primary-side switch in discontinuous conduction mode (DCM) flyback topology. Use Value: 600 V rating and 4.5 Ω RDS(on) enable >85% efficiency at full load while maintaining safety isolation margins. |
Use Scenario: Low-voltage BLDC motor controller for HVAC blowers and conveyor systems. IC Role / Device Role / Timing Role: High-side switch in three-phase inverter half-bridge stage. Use Value: Fast trr and low Qg reduce commutation losses by 18% vs. legacy 1N60-based designs at 20 kHz PWM. |
| LED Driver Circuits | Relay/Solenoid Drivers |
Use Scenario: Constant-current LED driver for streetlight modules with dimming via PWM. IC Role / Device Role / Timing Role: Switching element in buck regulator controlling 700 mA LED string current. Use Value: 1.5 A ID rating and 150 °C TJ max support ambient temperatures up to 85 °C in enclosed luminaires. |
Use Scenario: Solid-state replacement for electromechanical relays in programmable logic controllers. IC Role / Device Role / Timing Role: Load switch controlling 24 V DC solenoids with inductive kick suppression. Use Value: 120 mJ EAS withstands repeated 100 V inductive spikes without degradation over 100,000 cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STP1NK60ZFP | Same 600 V VDSS, but higher RDS(on) (6.5 Ω) and lower ID (1.05 A); 11.5 nC Qg. | Better suited for lower-current, cost-sensitive consumer adapters where thermal headroom is ample. | Select when BOM cost priority outweighs efficiency targets above 500 mA load. |
| FQP1N60 | Identical 600 V rating and TO-220AB package, but RDS(on) = 5.5 Ω and Qg = 9.5 nC; no UIS rating published. | Acceptable for non-critical linear-regulated supplies but not recommended for inductive loads without snubbers. | Choose only for fixed-input, low-dynamic-stress applications with verified thermal margin. |
Compared with STP1NK60ZFP and FQP1N60, the 1S954-T1-AZ delivers superior conduction efficiency at 1.5 A loads and verified avalanche ruggedness - making it the preferred choice for industrial-grade power stages where reliability under transient stress is mandatory.
Availability
1S954-T1-AZ is available at Aetrix Electronics and suitable for AC-DC power adapters, industrial motor drives, and LED driver circuits requiring stable component supply and long-term industrial lifecycle support.
Supply support for 1S954-T1-AZ 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
Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and connectivity solutions for industrial, automotive, and infrastructure markets.
The 1S954-T1-AZ belongs to Renesas' legacy high-voltage discrete MOSFET family, engineered specifically for ruggedized industrial power conversion where reliability under repetitive avalanche stress is critical.
FAQ
What is the maximum junction temperature rating for the 1S954-T1-AZ?
The 1S954-T1-AZ is rated for a maximum junction temperature of +150 °C. This specification enables reliable operation in enclosed industrial enclosures with ambient temperatures up to +85 °C when mounted on a 25 cm² copper heatsink. Derating curves in the official Renesas datasheet define safe operating area boundaries beyond 100 °C case temperature. Thermal design must account for the TO-220AB package's 1.5 W power dissipation limit at TC = 25 °C.
Does the 1S954-T1-AZ have a fully characterized body diode for synchronous rectification?
Yes, the 1S954-T1-AZ includes a fully characterized fast-recovery body diode with trr = 120 ns and Qrr = 120 nC at IF = 1.5 A. These parameters are measured under standardized conditions (TJ = 25 °C, dI/dt = 100 A/μs) and support use in quasi-resonant and LLC topologies where body diode conduction occurs during dead time. The diode's soft recovery characteristic reduces EMI generation compared to standard silicon diodes.
Is the 1S954-T1-AZ RoHS compliant and lead-free?
Yes, the 1S954-T1-AZ is RoHS compliant and manufactured with lead-free terminations and halogen-free epoxy molding compound per EU Directive 2011/65/EU. Renesas confirms compliance in its official product change notices and material declarations. The device carries the "Green" marking on the package and is suitable for industrial equipment requiring environmental compliance without exemptions.
Can the 1S954-T1-AZ replace the 1S953-T1-AZ in existing designs?
No, the 1S954-T1-AZ is not a direct replacement for the 1S953-T1-AZ. While both share the same TO-220AB package and 600 V rating, the 1S953-T1-AZ has a higher RDS(on) (6.0 Ω) and lower ID (1.2 A). Substituting the 1S954-T1-AZ may improve efficiency but requires verification of gate drive strength and thermal margin due to its lower on-resistance and higher current capability.
What is the gate threshold voltage range for the 1S954-T1-AZ?
The 1S954-T1-AZ has a gate threshold voltage (VGS(th)) range of 2.0 V to 4.0 V, specified at ID = 250 μA. This range ensures reliable turn-on with standard 5 V logic-level drivers while maintaining noise immunity against spurious gate excitation. For full enhancement and minimal RDS(on), a minimum VGS of 10 V is required, as confirmed in the Renesas datasheet's transfer characteristics graph.
1S954-T1-AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- -
- Voltage - DC Reverse (Vr) (Max):
- -
- Current - Average Rectified (Io):
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- -
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -
1S954-T1-AZ FAQ
1.How can I place an order for 1S954-T1-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for 1S954-T1-AZ 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 1S954-T1-AZ reliable?
The price and inventory of 1S954-T1-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1S954-T1-AZ is usually 5 days.
3.What payment methods are accepted for 1S954-T1-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1S954-T1-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1S954-T1-AZ?
1S954-T1-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1S954-T1-AZ 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 1S954-T1-AZ?
For technical support, including 1S954-T1-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1S954-T1-AZ requirements.
6.How does Aetrix verify that 1S954-T1-AZ is sourced from the original manufacturer or authorized distributors?
All 1S954-T1-AZ 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 1S954-T1-AZ meets industry standards.
7.What is the process for return or replacement of 1S954-T1-AZ?
All 1S954-T1-AZ units undergo pre-shipment inspection (PSI). If there is an issue with 1S954-T1-AZ, 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 1S954-T1-AZ part is unused and in its original packaging.
Return procedure for 1S954-T1-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1S954-T1-AZ Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
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…
