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Toshiba Semiconductor and Storage 1SS301SU,LF
- Part No.:
- 1SS301SU,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
1SS301SU,LF.pdf
- Description:
- DIODE ARRAY GP 80V 100MA SC-70
- Quantity:
- Payment:
- Shipping:
Inventory:3,518
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Product details
Overview
1SS301SU,LF from Toshiba Electronic Devices & Storage Corporation is an ultra-high-speed silicon epitaxial planar switching diode in SC-70 package, rated for 80 V reverse voltage, 100 mA average forward current, and featuring 1.6 ns typical reverse recovery time, 0.9 pF typical junction capacitance, and 0.90 V forward voltage at 100 mA - used in high-frequency signal routing and RF detector circuits.
For engineers reviewing the 1SS301SU,LF datasheet, 1SS301SU,LF pinout, 1SS301SU,LF application, or 1SS301SU,LF equivalent, key selection criteria include AEC-Q101 qualification status, low VF at high IF, sub-2 ns trr performance, SC-70 footprint compatibility, and thermal derating behavior under pulsed vs. continuous operation.
Technical Context
This diode employs a silicon epitaxial planar structure optimized for minimal minority-carrier storage, enabling fast turn-off critical in RF sampling, high-speed logic clamping, and pulse shaping. Its 1.6 ns typical reverse recovery time and 0.9 pF junction capacitance support operation up to several hundred MHz without significant phase distortion or signal loss.
The device is rated for 80 V DC reverse blocking and 300 mA peak forward current, with power dissipation limited to 200 mW on FR4 (0.5 mm² copper pad) and junction temperature capped at 150°C for LF-suffixed variants - consistent with automotive-grade reliability requirements per AEC-Q101.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 80 V - supports DC blocking in 24 V/48 V industrial bus interfaces and RF bias networks |
| Reverse Recovery Time (trr) | 1.6 ns (typ.) - enables clean switching in >200 MHz clock distribution and sampling applications |
| Junction Capacitance (CT) | 0.9 pF (typ.) - minimizes loading on high-Z RF nodes and preserves signal integrity in mixer/detector stages |
| Forward Voltage (VF @ 100 mA) | 0.90 V (typ.) - reduces conduction loss in low-voltage logic-level clamping and level-shifting circuits |
| Package | SC-70 (JEITA: SC-70, TOSHIBA: 1-2P1B) - 2.2 × 1.35 × 0.9 mm footprint compatible with fine-pitch automated assembly |
| AEC-Q101 Qualified | Yes (Note 1) - validated for automotive ambient temperature cycling, humidity, and mechanical stress per AEC standard |
Pinout & Package
SC-70 (TOSHIBA designation: 1-2P1B) surface-mount package with two terminals: anode and cathode. Marking "301" identifies the 1SS301SU,LF variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to higher-potential node during conduction; requires PCB trace sizing for 300 mA peak pulses |
| Cathode | Forward current exit / reverse-blocking terminal | Typically tied to ground or reference rail; serves as RF return path in detector configurations |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast switching | 1.6 ns trr enables use in >200 MHz digital and RF signal paths without tail current distortion |
| Low junction capacitance | 0.9 pF CT minimizes capacitive feedthrough in high-frequency sample-and-hold and mixer circuits |
| AEC-Q101 qualification | Validated for automotive under-hood environments including temperature cycling and mechanical shock |
| Small SC-70 footprint | 2.2 × 1.35 mm body allows dense placement in space-constrained RF front-ends and portable electronics |
Applications
| RF Detector Circuit | High-Speed Logic Clamp |
|---|---|
Use Scenario: Demodulating AM signals in 868 MHz ISM-band receivers using envelope detection. IC Role / Device Role / Timing Role: Signal rectifier converting RF carrier amplitude into baseband voltage; operates in small-signal switching mode. Use Value: 0.9 pF capacitance prevents RF shunting; 1.6 ns trr avoids distortion of fast envelope edges. | Use Scenario: Protecting FPGA I/O pins from overshoot during 100+ MHz LVCMOS signal transitions. IC Role / Device Role / Timing Role: Bidirectional ESD clamp and overvoltage limiter placed across VCCIO and I/O lines. Use Value: 0.90 V VF ensures clamping threshold remains below 1.2 V for 1.2 V I/O rails; SC-70 size fits near BGA pads. |
| Pulse Shaping Network | Automotive CAN Bus Transceiver Bias |
Use Scenario: Sharpening rise/fall edges of 50 MHz clock signals in test equipment timing modules. IC Role / Device Role / Timing Role: Fast-switching element in passive differentiator/clamp network shaping edge symmetry. Use Value: Sub-2 ns trr preserves nanosecond-scale edge fidelity; low VF maintains DC offset stability. | Use Scenario: Providing bias current and transient protection in LIN/CAN transceiver standby circuitry. IC Role / Device Role / Timing Role: Reverse-biased blocking diode isolating supply domains while handling load-dump transients. Use Value: AEC-Q101 qualification ensures reliability in 12 V vehicle electrical systems; 80 V VR rating covers ISO 7637-2 Pulse 5a. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-high-speed switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB521S-30T2R | 0.95 V VF @ 100 mA; 2.0 ns trr (typ.); same SC-70 package; not AEC-Q101 qualified | Lacks automotive qualification; slightly higher VF and trr limit use in precision RF detectors | Select when AEC-Q101 is not required and cost sensitivity outweighs 0.4 ns trr margin |
| BAT54C,215 | 0.8 V VF @ 10 mA; 5.0 ns trr (typ.); dual common-cathode SC-70; no AEC-Q101 | Slower recovery limits >50 MHz use; dual configuration adds routing complexity for single-diode needs | Prefer only for dual-diode layouts where BAT54C's channel count matches design topology |
Compared with RB521S-30T2R and BAT54C,215, the 1SS301SU,LF delivers tighter trr tolerance, lower VF at high current, and verified AEC-Q101 compliance - making it the preferred choice for automotive RF modules and high-fidelity pulse conditioning where timing accuracy and qualification evidence are mandatory.
Availability
1SS301SU,LF is available at Aetrix Electronics and suitable for RF detector circuits, high-speed logic clamping, pulse shaping networks, and automotive CAN/LIN transceiver bias applications requiring stable component supply across production lifecycles.
Supply support for 1SS301SU,LF 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
Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and logic ICs with emphasis on automotive, industrial, and consumer reliability standards.
The 1SS301SU,LF belongs to Toshiba's high-speed switching diode product line, engineered specifically for RF signal processing, precision clamping, and automotive-grade signal integrity preservation.
FAQ
What is the AEC-Q101 qualification status of the 1SS301SU,LF?
The 1SS301SU,LF is explicitly AEC-Q101 qualified per Note 1 in Toshiba's official datasheet. This qualification covers temperature cycling, mechanical shock, and humidity testing required for automotive under-hood applications. The 1SS301SU,LF meets these requirements as a discrete diode, and full test reports are available upon request through Toshiba sales channels.
What is the maximum average forward current rating for the 1SS301SU,LF?
The 1SS301SU,LF has a maximum average forward current (IO) rating of 100 mA at Ta = 25°C, as specified in the Absolute Maximum Ratings table. Derating applies above 25°C ambient - for example, IO drops to ~60 mA at 85°C ambient when mounted on a standard FR4 board with 0.5 mm² copper pads.
How does the 1SS301SU,LF compare to standard Schottky diodes in RF detector use?
Unlike Schottky diodes, the 1SS301SU,LF is a silicon epitaxial planar switching diode with lower junction capacitance (0.9 pF vs. typical 1–3 pF for Schottkys) and more predictable trr (1.6 ns typ.). Its absence of metal-semiconductor interface eliminates soft reverse leakage, improving detector linearity at low RF input levels - a key advantage in 1SS301SU,LF-based AM demodulators.
What is the marking code for the 1SS301SU,LF on the SC-70 package?
The 1SS301SU,LF is marked with "301" on the top surface of its SC-70 package. This 3-digit code uniquely identifies the 1SS301SU,LF variant within Toshiba's 1SS301 family and distinguishes it from non-LF or alternate suffix versions. No polarity symbol is printed; cathode is indicated by a beveled edge on the package body.
Can the 1SS301SU,LF replace the 1SS301 in existing designs?
Yes - the 1SS301SU,LF is a lead-free (RoHS-compliant) version of the legacy 1SS301, sharing identical electrical specifications, SC-70 package dimensions, and pinout. The "LF" suffix denotes lead-free termination and corresponds to Note 2 in the Absolute Maximum Ratings, confirming identical 200 mW PD and 150°C Tj ratings when mounted per JEDEC-standard conditions.
1SS301SU,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 80 V
- Current - Average Rectified (Io) (per Diode):
- 100mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 500 nA @ 80 V
- Operating Temperature - Junction:
- 125°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70
1SS301SU,LF FAQ
1.How can I place an order for 1SS301SU,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for 1SS301SU,LF 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 1SS301SU,LF reliable?
The price and inventory of 1SS301SU,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1SS301SU,LF is usually 5 days.
3.What payment methods are accepted for 1SS301SU,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1SS301SU,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1SS301SU,LF?
1SS301SU,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1SS301SU,LF 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 1SS301SU,LF?
For technical support, including 1SS301SU,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1SS301SU,LF requirements.
6.How does Aetrix verify that 1SS301SU,LF is sourced from the original manufacturer or authorized distributors?
All 1SS301SU,LF 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 1SS301SU,LF meets industry standards.
7.What is the process for return or replacement of 1SS301SU,LF?
All 1SS301SU,LF units undergo pre-shipment inspection (PSI). If there is an issue with 1SS301SU,LF, 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 1SS301SU,LF part is unused and in its original packaging.
Return procedure for 1SS301SU,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1SS301SU,LF Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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