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

Diodes Incorporated RS1MB-13

Name: RS1MB-13
Brand: Diodes Incorporated
SKU: RS1MB-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: RS1MB-13

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: RS1MB-13.pdf

Description:: DIODE GEN PURP 1KV 1A SMB

Quantity:: RFQ Add To RFQ list

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Inventory:9,701

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Product details

Overview

RS1MB-13 from Diodes Incorporated is a 1000 V, 1.0 A surface-mount fast recovery rectifier in SMB package, featuring 500 ns reverse recovery time, 1.3 V forward voltage at 1.0 A, and 30 A non-repetitive surge capability - used in AC/DC front-end rectification for industrial power supplies and LED drivers.

For engineers reviewing the RS1MB-13 datasheet, RS1MB-13 pinout, RS1MB-13 application, or RS1MB-13 equivalent, key selection criteria include peak repetitive reverse voltage (1000 V), thermal resistance (20 °C/W), fast recovery performance (500 ns), RoHS-compliant lead-free finish, and SMB package compatibility with automated SMT assembly.

Technical Context

This device is a glass-passivated silicon junction diode optimized for high-efficiency switching power conversion. Its fast recovery time (500 ns) minimizes switching losses in 50–100 kHz SMPS topologies, while the 1000 V V_RRM rating supports universal-input offline designs.

The SMB package provides enhanced thermal dissipation over SMA (R_JT = 20 °C/W), and the cathode band polarity marking ensures unambiguous PCB layout. Rated for operation from –65 °C to +150 °C, it sustains full current derating up to 120 °C terminal temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - blocks full-wave rectified 700 V RMS line voltage with safety margin for transient spikes
I_O	1.0 A @ T_T = 120 °C - continuous DC output current under thermally constrained board conditions
V_FM	1.3 V @ I_F = 1.0 A - low conduction loss enabling >90% efficiency in 24 V output flyback converters
t_rr	500 ns - limits reverse recovery charge (Q_rr) to reduce EMI and MOSFET turn-on stress in hard-switched PFC stages
I_FSM	30 A @ 8.3 ms - withstands inrush surges during cold-start of 100 W industrial power supplies
R_JT	20 °C/W - enables direct thermal coupling to copper pour without heatsink in space-constrained SMB layouts
C_T	15 pF @ 1 MHz, 4 V - low junction capacitance reduces capacitive coupling noise in high-dV/dt gate-drive isolation circuits

Pinout & Package

SMB (DO-214AA) surface-mount package: molded plastic case, UL 94V-0 rated, cathode indicated by band on body; terminals are solder-plated for MIL-STD-202 compliance.

Pin/Terminal	Circuit Role	Design Meaning
Anode	AC input node	Connected to transformer secondary or bridge input; handles full AC waveform before rectification
Cathode	DC output node	Feeds bulk capacitor or downstream regulator; polarity marking prevents reverse-bias installation error

Key Features

Feature	Design Value
Glass passivated die	Eliminates need for hermetic sealing while maintaining humidity resistance and long-term reliability in humid industrial environments
Fast recovery (500 ns)	Reduces switching loss and EMI generation compared to standard rectifiers in 65–100 kHz SMPS designs
RoHS-compliant lead-free finish	Meets EU Directive Annex exemptions for high-temp soldering; compatible with Pb-free reflow profiles (peak 260 °C)
30 A surge rating	Supports repeated cold-start cycles in LED driver modules without degradation or parametric shift

Applications

Industrial AC/DC Power Supply

LED Driver Front-End Rectification

Use Scenario: Offline 85–265 V AC input rectification in 30–60 W industrial control power supplies.

IC Role / Device Role / Timing Role: Primary-side fast recovery rectifier in single-phase bridge configuration.

Use Value: 1000 V V_RRM ensures margin against line transients; 500 ns t_rr lowers switching loss in 65 kHz flyback converters.

Use Scenario: Input rectification stage in constant-current LED drivers for street lighting.

IC Role / Device Role / Timing Role: High-voltage AC input rectifier feeding bulk capacitor and PFC controller.

Use Value: 30 A I_FSM withstands inrush into large electrolytic banks; SMB package fits tight thermal zones near heat-generating LEDs.

Automotive Auxiliary Power Module

Programmable Logic Controller (PLC) Power Input

Use Scenario: 24 V DC input conditioning and reverse-polarity protection in vehicle-mounted auxiliary modules.

IC Role / Device Role / Timing Role: Reverse-blocking rectifier in redundant input path with battery backup.

Use Value: –65 °C to +150 °C operating range supports under-hood ambient extremes; 20 °C/W R_JT enables direct PCB copper thermal relief.

Use Scenario: Mains-powered PLC I/O module requiring robust input rectification and surge immunity.

IC Role / Device Role / Timing Role: First-stage rectifier in isolated 24 V DC power rail generation.

Use Value: 1000 V rating meets IEC 61000-4-5 Level 4 surge immunity requirements; RoHS-compliant finish satisfies industrial compliance mandates.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R06S	Same 1000 V V_RRM, but 1.7 V V_F at 1 A and 75 °C max T_j; TO-277 package	Higher forward drop increases conduction loss in thermally limited PCBs; requires different footprint	Prefer RS1MB-13 where SMB footprint and lower V_F are critical for compact, high-efficiency designs
ES1J-M3/84A	1000 V V_RRM, 1.7 V V_F, 350 ns t_rr; SMA package, higher R_JT (25 °C/W)	Faster recovery but higher forward loss and worse thermal performance than RS1MB-13	Choose RS1MB-13 when thermal management and efficiency outweigh marginal t_rr advantage

Compared with STTH1R06S and ES1J-M3/84A, RS1MB-13 delivers superior thermal resistance (20 vs. ≥25 °C/W), lower forward voltage (1.3 V), and SMB package compatibility - making it optimal for space-constrained, high-reliability industrial power rectification where thermal headroom and efficiency are prioritized.

Availability

RS1MB-13 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver front-end rectification, and programmable logic controller (PLC) power inputs requiring stable component supply and long-term manufacturing continuity.

Supply support for RS1MB-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

The RS1x series belongs to Diodes' high-voltage fast recovery rectifier product line, engineered specifically for efficient, reliable AC/DC conversion in industrial, lighting, and automotive auxiliary power systems.

FAQ

What is the maximum junction temperature for RS1MB-13?

The RS1MB-13 has a specified operating junction temperature range of –65 °C to +150 °C. Its thermal resistance (R_JT = 20 °C/W) allows sustained operation at full 1.0 A load up to 120 °C terminal temperature, with derating required beyond that per Figure 1 in the datasheet.

Is RS1MB-13 suitable for use in a PFC boost diode position?

No - RS1MB-13 is not recommended for active PFC boost diode applications due to its 500 ns reverse recovery time and lack of soft recovery characteristics. It is optimized for output rectification and front-end bridge roles where moderate speed suffices and cost/performance balance favors SMB packaging.

Does RS1MB-13 have a lead-free and RoHS-compliant version?

Yes - RS1MB-13 is supplied with a lead-free matte tin finish and complies with RoHS Directive 2002/95/EC (as revised March 13, 2003), including applicable exemptions for high-temperature soldering and glass components per EU Directive Annex Notes 5 and 7.

How does the SMB package of RS1MB-13 compare thermally to the SMA version (e.g., RS1M-13)?

RS1MB-13 in SMB offers lower thermal resistance (20 °C/W) versus RS1M-13 in SMA (25 °C/W), delivering ~20% better steady-state thermal performance. This enables higher current handling in thermally dense layouts without additional copper area or airflow.

RS1MB-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 1000 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 1 A

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

Reverse Recovery Time (trr):: 500 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 1000 V

Capacitance @ Vr, F:: 15pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMB

Operating Temperature - Junction:: -65°C ~ 150°C

RS1MB-13 FAQ

1.How can I place an order for RS1MB-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for RS1MB-13 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 RS1MB-13 reliable?

The price and inventory of RS1MB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1MB-13 is usually 5 days.

3.What payment methods are accepted for RS1MB-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1MB-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for RS1MB-13?

RS1MB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your RS1MB-13 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 RS1MB-13?

For technical support, including RS1MB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1MB-13 requirements.

6.How does Aetrix verify that RS1MB-13 is sourced from the original manufacturer or authorized distributors?

All RS1MB-13 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 RS1MB-13 meets industry standards.

7.What is the process for return or replacement of RS1MB-13?

All RS1MB-13 units undergo pre-shipment inspection (PSI). If there is an issue with RS1MB-13, 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 RS1MB-13 part is unused and in its original packaging.

Return procedure for RS1MB-13:

1.Submit a request within 90 days.

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

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