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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation SS13M

Name: SS13M
Brand: Taiwan Semiconductor Corporation
SKU: SS13M
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SS13M

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: 2-SMD, Flat Leads

Datasheet:: SS13M.pdf

Description:: DIODE SCHOTTKY 30V 1A MICRO SMA

Quantity:: RFQ Add To RFQ list

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Inventory:7,231

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Product details

Overview

SS13M from Taiwan Semiconductor is a 1A, 30V Schottky barrier surface-mount rectifier in Micro SMA package, featuring 0.52V forward voltage at 1.0A/25°C, 25A surge rating, and 150°C max junction temperature. It serves as a low-loss output rectifier in compact DC-DC converters and AC adapters.

For engineers reviewing the SS13M datasheet, SS13M pinout, SS13M application, or SS13M equivalent, key selection criteria include its 30V V_RRM, ultra-low profile (0.68mm height), JESD201 Class 2 whisker resistance, RoHS/halogen-free compliance, and Micro SMA thermal performance (R_θJL = 30°C/W).

Technical Context

The SS13M operates as a single-die Schottky rectifier with unidirectional conduction and cathode-band polarity marking. Its low VF enables high efficiency in 1A-level switching power supplies, while its 25A I_FSM supports transient load surges in SMPS outputs.

Thermally, it uses matte tin-plated leads per J-STD-002 and achieves R_θJA = 125°C/W in standard PCB mounting. The device is rated for -55°C to +150°C operation and meets UL 94V-0 flammability requirements in its Micro SMA molding compound.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	30 V - Maximum repetitive reverse blocking voltage; defines safe operating range in 24V-output DC-DC stages
I_F	1 A - Continuous forward current rating; sets maximum steady-state output capability
V_F @ 1A, 25°C	0.52 V - Low conduction loss enabling >92% efficiency in 5–12V output rails
I_FSM	25 A - Non-repetitive surge current handling; withstands inrush and fault transients
T_J max	150 °C - High junction temperature limit allows operation in thermally constrained enclosures
C_J	50 pF - Junction capacitance at 1MHz/4V; minimizes switching noise in high-frequency SMPS
R_θJL	30 °C/W - Junction-to-lead thermal resistance; enables direct heat transfer to PCB copper

Pinout & Package

Package: Micro SMA - Surface-mount plastic case with cathode band marking, 0.68mm typical height, UL 94V-0 rated molding compound, and JESD201 Class 2 whisker-resistant matte tin leads.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current input terminal	Connected to switch node or transformer secondary; accepts pulsed current up to 25A
Cathode	Forward current output terminal	Connected to output filter capacitor; marked by visible band; carries full load current

Key Features

Feature	Design Value
Ultra-low profile (0.68mm)	Enables use in space-constrained portable adapters and thin-profile power modules
Low forward voltage (0.52V @ 1A)	Reduces conduction loss by ≥35% vs. comparable PN rectifiers, improving thermal margin
J-STD-020 Level 1 moisture sensitivity	Eliminates bake requirement prior to reflow, supporting standard SMT assembly lines
RoHS & halogen-free (IEC 61249-2-21)	Meets global environmental compliance mandates for consumer and industrial end equipment

Applications

USB-C PD Adapters	Industrial DC-DC Modules
Use Scenario: Secondary-side rectification in 20–65W USB-C Power Delivery adapters with 5–20V outputs. IC Role / Device Role / Timing Role: Output Schottky rectifier replacing synchronous MOSFETs where cost and layout simplicity are prioritized. Use Value: 0.52V V_F minimizes power loss at 1A loads, maintaining >90% efficiency without gate drive complexity.	Use Scenario: Input or output rectification in isolated 12V/24V industrial DC-DC converters operating at -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Unidirectional current path with fast recovery and low stored charge for stable regulation under variable load. Use Value: 150°C T_J max and 25A I_FSM ensure reliability during cold-start surges and overloads in factory automation systems.
Telecom Power Supplies	LED Driver Secondary Rectification
Use Scenario: 48V intermediate bus rectification in telecom shelf power systems with forced-air cooling. IC Role / Device Role / Timing Role: High-reliability discrete rectifier with UL 94V-0 package for safety-critical infrastructure. Use Value: R_θJL = 30°C/W enables efficient heat transfer to heatsinked PCB planes, reducing thermal derating.	Use Scenario: Output rectification in constant-current LED drivers for street lighting (12–48V, 0.7–1.0A). IC Role / Device Role / Timing Role: Low-V_F diode minimizing voltage drop across series-connected LEDs. Use Value: 0.46V V_F at 1A/125°C maintains consistent LED current despite thermal rise in enclosed fixtures.

USB-C PD Adapters

Industrial DC-DC Modules

Use Scenario: Secondary-side rectification in 20–65W USB-C Power Delivery adapters with 5–20V outputs.

IC Role / Device Role / Timing Role: Output Schottky rectifier replacing synchronous MOSFETs where cost and layout simplicity are prioritized.

Use Value: 0.52V V_F minimizes power loss at 1A loads, maintaining >90% efficiency without gate drive complexity.

Use Scenario: Input or output rectification in isolated 12V/24V industrial DC-DC converters operating at -40°C to +85°C ambient.

IC Role / Device Role / Timing Role: Unidirectional current path with fast recovery and low stored charge for stable regulation under variable load.

Use Value: 150°C T_J max and 25A I_FSM ensure reliability during cold-start surges and overloads in factory automation systems.

Telecom Power Supplies

LED Driver Secondary Rectification

Use Scenario: 48V intermediate bus rectification in telecom shelf power systems with forced-air cooling.

IC Role / Device Role / Timing Role: High-reliability discrete rectifier with UL 94V-0 package for safety-critical infrastructure.

Use Value: R_θJL = 30°C/W enables efficient heat transfer to heatsinked PCB planes, reducing thermal derating.

Use Scenario: Output rectification in constant-current LED drivers for street lighting (12–48V, 0.7–1.0A).

IC Role / Device Role / Timing Role: Low-V_F diode minimizing voltage drop across series-connected LEDs.

Use Value: 0.46V V_F at 1A/125°C maintains consistent LED current despite thermal rise in enclosed fixtures.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SS13 (DO-214AC/SMA)	Same electrical specs but larger DO-214AC (SMA) package; 1.7mm height vs. Micro SMA's 0.68mm	Not suitable for ultra-thin designs; requires more PCB area and higher thermal resistance (R_θJA ≈ 150°C/W)	Select SS13 only when legacy footprint compatibility or higher surge margin is required over height constraint.
SB130 (DO-214AA/SMB)	1A/30V Schottky but SMB package; 25A I_FSM, 0.55V V_F @ 1A, R_θJA = 130°C/W	Larger footprint than Micro SMA; slightly higher VF increases conduction loss in high-duty-cycle operation	Choose SB130 when existing SMB land pattern exists and 0.68mm height is not critical.

Compared with SS13 and SB130, the SS13M delivers identical 30V/1A performance in a 60% lower profile package with superior thermal coupling (R_θJL = 30°C/W), making it optimal for next-gen miniaturized power supplies where board height and thermal density are limiting factors.

Availability

SS13M is available at Aetrix Electronics and suitable for USB-C PD adapters, industrial DC-DC modules, and telecom power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for SS13M 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and consumer markets.

The SS13M belongs to TSC's SS1xM Schottky rectifier family, engineered specifically for high-efficiency, low-profile secondary-side rectification in compact switching power supplies and adapters.

FAQ

What is the peak repetitive reverse voltage rating of the SS13M?

The SS13M has a peak repetitive reverse voltage (V_RRM) rating of 30 V, verified per Taiwan Semiconductor's O2103 datasheet. This defines its maximum allowable reverse-bias voltage in continuous operation. Exceeding 30 V risks avalanche breakdown. The SS13M is part of a family where "x" denotes voltage grade: SS13M = 30V, SS14M = 40V, SS16M = 60V.

What is the forward voltage drop of the SS13M at 1.0A and 25°C?

The SS13M exhibits a typical forward voltage (V_F) of 0.52 V at 1.0A and 25°C, as specified in the Electrical Specifications table of the official datasheet. At 125°C, this drops to 0.46 V due to the negative temperature coefficient of Schottky diodes. This low V_F directly reduces conduction losses in the SS13M compared to standard PN rectifiers.

Is the SS13M compatible with lead-free reflow soldering processes?

Yes, the SS13M features matte tin-plated leads compliant with J-STD-002 for solderability and is qualified for lead-free reflow profiles. Its J-STD-020 moisture sensitivity level is Level 1, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without baking-fully supporting modern SMT assembly lines using Pb-free SAC305 or similar alloys.

What package type does the SS13M use, and how does it differ from standard SMA?

The SS13M uses the Micro SMA package-a miniature variant of SMA (DO-214AC) with reduced height (0.68mm typical vs. 2.3mm for standard SMA) and tighter dimensional tolerances. It retains the same anode/cathode pin configuration and polarity marking (cathode band), but its smaller footprint and lower profile enable use in ultra-thin power supplies where board height is constrained.

Does the SS13M meet halogen-free and RoHS requirements?

Yes, the SS13M is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the FEATURES section of Taiwan Semiconductor's SS13M–SS16M datasheet (Version O2103). The molding compound contains no brominated flame retardants or chlorine-based additives, satisfying environmental regulations for consumer, industrial, and telecom end equipment.

SS13M Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: 2-SMD, Flat Leads

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

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

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 550 mV @ 1 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 5 µA @ 30 V

Capacitance @ Vr, F:: 50pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: Micro SMA

Operating Temperature - Junction:: -55°C ~ 150°C

SS13M FAQ

1.How can I place an order for SS13M through Aetrix?

Please submit a Request for Quotation (RFQ) for SS13M 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 SS13M reliable?

The price and inventory of SS13M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS13M is usually 5 days.

3.What payment methods are accepted for SS13M?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS13M transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SS13M?

SS13M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SS13M 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 SS13M?

For technical support, including SS13M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS13M requirements.

6.How does Aetrix verify that SS13M is sourced from the original manufacturer or authorized distributors?

All SS13M 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 SS13M meets industry standards.

7.What is the process for return or replacement of SS13M?

All SS13M units undergo pre-shipment inspection (PSI). If there is an issue with SS13M, 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 SS13M part is unused and in its original packaging.

Return procedure for SS13M:

1.Submit a request within 90 days.

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

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