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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

STMicroelectronics STPS30L30CG

Name: STPS30L30CG
Brand: STMicroelectronics
SKU: STPS30L30CG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS30L30CG

Manufacturer:: STMicroelectronics

Category:: Diode Arrays

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: STPS30L30CG.pdf

Description:: DIODE ARRAY SCHOTT 30V 15A D2PAK

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Product details

Overview

STPS30L30CG from STMicroelectronics is a dual-center-tap low-drop Schottky rectifier in D2PAK package, rated for 2 × 15 A average forward current per diode, 30 V repetitive peak reverse voltage, and 150 °C maximum junction temperature. It delivers typ. 0.37 V forward voltage at 15 A/125 °C and features avalanche capability up to 45 V with 5300 W peak power, targeting high-frequency DC–DC converters and SMPS secondary-side rectification.

For engineers reviewing the STPS30L30CG datasheet, STPS30L30CG pinout, STPS30L30CG application, or STPS30L30CG equivalent, key selection criteria include dual-diode thermal coupling behavior, low R_th(j-c) (0.8 °C/W total), conduction loss modeling via P = 0.24×I_F(AV) + 0.009×I_F(RMS)², and avalanche-safe operation under <1 µs transients.

Technical Context

This device integrates two independent Schottky diodes sharing a common cathode terminal (center-tap configuration), enabling synchronous rectification or dual-output DC–DC topologies. Its negligible switching losses and extremely fast recovery eliminate snubber requirements in >100 kHz converters.

Thermal design relies on case-to-heatsink conduction (R_th(j-c) = 0.8 °C/W total), with derating governed by simultaneous diode power dissipation: ΔT_j(diode1) = P₁×1.5 + P₂×0.1 °C/W. Avalanche robustness is validated per AN1768/AN2025 using 1 µs pulses at T_j < 150 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	30 V - Maximum reverse blocking voltage before breakdown; defines safe operating range in buck/forward converter freewheeling paths.
I_F(AV) per diode	15 A - Continuous DC current rating per diode at T_c = 140 °C; supports 30 A total dual-diode output in center-tap configurations.
V_F (typ)	0.37 V @ 15 A, 125 °C - Low forward drop reduces conduction loss by ~40% vs. standard silicon diodes, critical for <5 V output rails.
R_th(j-c) (total)	0.8 °C/W - Combined thermal resistance enables 37.5 W dissipation before reaching 150 °C junction limit with 100 °C case temp.
V_ARM	45 V @ t_p < 1 µs - Avalanche clamping voltage ensures survivability during inductive turn-off transients without external TVS.
dV/dt	10,000 V/µs - High rate-of-rise immunity prevents false triggering in noisy high-dv/dt environments like motor drives.

Pinout & Package

Package: D2PAK (TO-263AB), surface-mount with isolated metal tab for heatsinking; ECOPACK® compliant, UL94 V0 epoxy, recommended torque 0.4–0.6 N·m for mounting screws.

Pin/Terminal	Circuit Role	Design Meaning
A1	Anode 1	Input terminal for first Schottky diode; connects to transformer secondary winding or switch node in half-bridge topology.
A2	Anode 2	Input terminal for second Schottky diode; enables dual-output or interleaved rectification with independent anode routing.
K	Common Cathode	Shared output node; serves as center-tap return path for dual-winding transformers or parallel output filtering.

Key Features

Feature	Design Value
Dual-center-tap configuration	Enables single-package implementation of full-wave rectification or dual-output DC–DC without external interconnects.
Low thermal resistance (0.8 °C/W total)	Allows direct PCB copper pour heatsinking without bulky external heatsinks-reduces system volume by ≥30% vs. TO-220AB variants.
Avalanche-rated (5300 W, 1 µs)	Eliminates need for external clamp circuits in flyback or LLC resonant converters subjected to leakage inductance spikes.
0.37 V V_F @ 15 A/125 °C	Reduces power loss to ≤5.55 W per diode at full load, enabling >94% efficiency in 12 V → 3.3 V point-of-load converters.

Applications

Server VRM Output Stage

Telecom DC–DC Module

Use Scenario: Secondary-side synchronous rectification in 48 V → 12 V intermediate bus converters powering CPU/GPU VRMs.

IC Role / Device Role / Timing Role: Dual-diode center-tap rectifier replacing MOSFETs in cost-sensitive designs where gate drive complexity must be avoided.

Use Value: 0.37 V forward drop cuts conduction loss by 62% versus 100 V Si diodes, directly improving VRM efficiency from 91% to 93.5% at 100 A load.

Use Scenario: Isolated 48 V input, dual 5 V/3.3 V output DC–DC modules for base station control cards.

IC Role / Device Role / Timing Role: Center-tap rectifier providing independent outputs from split-secondary transformer windings.

Use Value: Shared cathode simplifies output filtering with single bulk capacitor bank, reducing BOM count by two electrolytics and associated footprint.

Industrial PLC Power Supply

LED Driver Secondary Rectification

Use Scenario: 24 V output SMPS in programmable logic controllers requiring high reliability under 85 °C ambient.

IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp forward converter, handling 30 A peak currents during switch transitions.

Use Value: 150 °C T_j(max) and avalanche rating ensure no failure during 220 A surge events (per I_FSM spec), extending field lifetime beyond 10 years.

Use Scenario: Constant-current LED driver with 36 V output, using center-tap transformer for ripple cancellation.

IC Role / Device Role / Timing Role: Dual-anode rectifier delivering low-noise DC to LED strings while minimizing EMI from reverse recovery.

Use Value: Negligible switching losses suppress high-frequency noise above 30 MHz, easing CISPR-11 Class B compliance without added ferrites.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-center-tap Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STPS30L30CT	TO-220AB package; R_th(j-c) = 1.5 °C/W per diode (vs. 0.8 °C/W total for STPS30L30CG); same electrical specs.	Requires bolt-on heatsink; unsuitable for ultra-thin PCBs or automated SMT assembly lines.	Select when mechanical mounting flexibility outweighs thermal performance and SMT compatibility.
MBR3030CT	30 V V_RRM, 30 A total I_F(AV), but single-die construction lacks true dual-diode thermal isolation; VF = 0.52 V @ 15 A/25 °C.	No dedicated center-tap cathode; requires external wiring to emulate dual-anode configuration, increasing parasitic inductance.	Select only for non-critical cost-driven applications where 0.15 V higher V_F and reduced avalanche margin (35 V) are acceptable.

Compared with STPS30L30CT, the STPS30L30CG offers 47% lower thermal resistance and SMT manufacturability; versus MBR3030CT, it provides verified dual-diode isolation, 0.15 V lower V_F, and guaranteed 45 V avalanche clamping-critical for industrial-grade transient immunity.

Availability

STPS30L30CG is available at Aetrix Electronics and suitable for server VRM output stages, telecom DC–DC modules, and industrial PLC power supplies requiring stable component supply across multi-year production cycles.

Supply support for STPS30L30CG 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

This device belongs to ST's STPS low-drop Schottky rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion where thermal management and avalanche ruggedness are primary design constraints.

FAQ

What is the maximum allowable case temperature for continuous operation?

The datasheet specifies I_F(AV) = 15 A per diode at T_c = 140 °C. Exceeding this temperature requires derating per Figure 3; sustained operation above 140 °C risks thermal runaway due to the dP_tot/dT_j stability condition. For 150 °C T_j(max), maximum case temperature is 140 °C with 0.8 °C/W R_th(j-c).

Can STPS30L30CG replace STPS30L30CR in the same footprint?

Yes-both share identical D2PAK (TO-263AB) package dimensions per Table 7 and Figure 13. STPS30L30CG and STPS30L30CR are electrically identical; the suffix difference reflects tape-and-reel (CG) vs. tube (CR) packaging only, with no parametric or mechanical variation.

How is avalanche energy calculated for transient protection design?

Avalanche energy is derived from P_ARM = 5300 W at t_p = 1 µs, scaled using Figure 4 derating curves. For a 500 ns pulse, normalized power is ~0.7, yielding 3710 W; energy = P × t = 1.855 mJ. This value must stay below the diode's validated avalanche energy limit per AN1768 test methodology.

Is the metal tab electrically isolated from internal terminals?

Yes-the D2PAK metal tab is internally connected only to the cathode (K) terminal, as confirmed by the pinout diagram and thermal resistance definition R_th(j-c). No isolation barrier exists between tab and K; therefore, the heatsink must be held at cathode potential or insulated with dielectric pads if referenced to other potentials.

STPS30L30CG Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tube

Product Status:: Obsolete

Diode Configuration:: 1 Pair Common Cathode

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 30 V

Current - Average Rectified (Io) (per Diode):: 15A

Voltage - Forward (Vf) (Max) @ If:: 460 mV @ 15 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 1.5 mA @ 60 V

Operating Temperature - Junction:: 150°C (Max)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

STPS30L30CG FAQ

1.How can I place an order for STPS30L30CG through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS30L30CG 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 STPS30L30CG reliable?

The price and inventory of STPS30L30CG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS30L30CG is usually 5 days.

3.What payment methods are accepted for STPS30L30CG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS30L30CG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS30L30CG?

STPS30L30CG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS30L30CG 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 STPS30L30CG?

For technical support, including STPS30L30CG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS30L30CG requirements.

6.How does Aetrix verify that STPS30L30CG is sourced from the original manufacturer or authorized distributors?

All STPS30L30CG 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 STPS30L30CG meets industry standards.

7.What is the process for return or replacement of STPS30L30CG?

All STPS30L30CG units undergo pre-shipment inspection (PSI). If there is an issue with STPS30L30CG, 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 STPS30L30CG part is unused and in its original packaging.

Return procedure for STPS30L30CG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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