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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Nexperia USA Inc. BSS64,215

Name: BSS64,215
Brand: Nexperia USA Inc.
SKU: BSS64,215
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BSS64,215

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BSS64,215.pdf

Description:: TRANS NPN 80V 0.1A TO-236AB

Quantity:: RFQ Add To RFQ list

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Inventory:492

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Product details

Overview

BSS64 from NXP Semiconductors is an NPN high-voltage general-purpose transistor in SOT23 package, rated for 80 V V_CEO, 100 mA I_C, and 250 mW P_tot, used in thick/thin-film switching circuits requiring stable gain (h_FE = 20–80 at 10 mA) and low leakage (ICBO ≤ 100 nA at 90 V).

For engineers reviewing the BSS64 datasheet, BSS64 pinout, BSS64 application, or BSS64 equivalent, key selection criteria include its 80 V collector-emitter breakdown, SOT23 thermal resistance (500 K/W), 60–100 MHz f_T, and complementary pairing with BSS63 in high-voltage bias networks.

Technical Context

The BSS64 operates as a discrete NPN bipolar junction transistor optimized for high-voltage switching up to 80 V with DC current handling to 100 mA. Its design emphasizes low base drive requirements (V_CEsat ≤ 200 mV at IC = 50 mA, IB = 15 mA) and stable gain across 1–20 mA collector currents.

Thermal performance is defined for FR4 PCB mounting (R_th(j-a) = 500 K/W), and it supports operation from −65 °C to +150 °C ambient. Cut-off leakage remains tightly controlled: ICBO ≤ 100 nA at 90 V, 25 °C and ≤ 50 µA at 150 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	80 V - maximum safe collector-emitter voltage under open-base conditions, enabling use in 48 V and 60 V supply rail switching
I_C (DC)	100 mA - continuous collector current rating, suitable for medium-current bias and signal switching stages
h_FE	20–80 - DC current gain range at IC = 10 mA, V_CE = 1 V, supporting predictable base resistor sizing
f_T	60–100 MHz - transition frequency at IC = 4 mA, V_CE = 10 V, permitting audio-frequency and low-speed digital switching
V_CEsat	≤ 200 mV - saturation voltage at IC = 50 mA, IB = 15 mA, minimizing conduction loss in saturated-switch applications
R_th(j-a)	500 K/W - junction-to-ambient thermal resistance on FR4, defining power derating above 25 °C ambient
C_c	3 pF - collector capacitance at V_CB = 10 V, limiting high-frequency Miller effect in switching nodes

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package: 3-pin, small-outline transistor housing with gull-wing leads, footprint per JEDEC MO-178AA, 2.8 mm × 1.4 mm body size, 0.95 mm height.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal for forward-biased junction; requires ~0.7 V V_BE and current-limited drive to achieve target I_C
2	Emitter	Current sink node; connected to ground or low-side return path in common-emitter configurations
3	Collector	High-voltage output node; handles up to 80 V potential swing and 100 mA DC load current

Key Features

Feature	Design Value
High-voltage capability	80 V V_CEO rating enables direct interface with industrial 48 V bus and telecom line-driver stages
Low leakage	ICBO ≤ 100 nA at 90 V ensures minimal standby current in battery-backed or energy-sensitive bias networks
Stable gain profile	h_FE = 20–80 over 1–20 mA allows consistent amplification without gain compression in linear regions
SOT23 compatibility	Standardized footprint supports automated placement and reflow soldering in space-constrained PCB layouts

Applications

Industrial Power Supply Biasing

Telecom Line Interface

Use Scenario: Providing base drive to high-side pass transistors in isolated DC-DC converter feedback loops.

IC Role / Device Role / Timing Role: NPN switch controlling optocoupler LED current or error amplifier bias in secondary-side regulation.

Use Value: 80 V V_CEO withstands reflected flyback spikes; 250 mW dissipation accommodates continuous bias current without heatsinking.

Use Scenario: Driving termination resistors and protection diodes in analog subscriber line interface circuits (SLIC).

IC Role / Device Role / Timing Role: High-voltage switch enabling/disabling line feed paths during ringing or off-hook states.

Use Value: Low V_CEsat (<200 mV) minimizes insertion loss; 3 pF C_c preserves signal integrity up to 100 kHz voice band.

Automotive Sensor Signal Conditioning

Consumer Appliance Motor Control

Use Scenario: Amplifying low-level signals from Hall-effect or thermistor-based sensors in 12 V/24 V vehicle subsystems.

IC Role / Device Role / Timing Role: Small-signal amplifier stage with gain stabilization across −40 °C to +125 °C operating range.

Use Value: h_FE consistency (20–80 at 10 mA) enables fixed-resistor biasing; T_j rating of 150 °C supports under-hood deployment.

Use Scenario: Switching gate resistors or pull-up networks in BLDC motor driver logic interfaces.

IC Role / Device Role / Timing Role: Level-shifting and isolation buffer between MCU GPIO and higher-voltage motor control IC inputs.

Use Value: Complementary BSS63 pairing allows push-pull output stages; SOT23 footprint saves board area in compact appliance PCBs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN high-voltage switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ZTX653	V_CEO = 100 V, I_C = 1 A, SOT89 package - higher voltage/current but larger footprint and thermal mass	Used where >100 mA load switching or improved thermal dissipation (R_th(j-a) ≈ 120 K/W) is required	Select when higher current headroom or lower thermal resistance is critical; not drop-in due to package mismatch
MMBT5551	V_CEO = 160 V, I_C = 600 mA, h_FE = 80–250 - wider gain spread and higher leakage (ICBO ≤ 50 nA @ 120 V)	Preferred in high-gain amplifier stages or 100+ V transient-tolerant switching where tighter gain control is less critical	Choose for higher voltage margin and gain flexibility; verify stability with base resistor tolerance in bias networks

Compared with ZTX653 and MMBT5551, the BSS64 offers optimal balance of 80 V rating, SOT23 compactness, and predictable 20–80 h_FE for cost-sensitive, space-constrained high-voltage biasing-without over-spec'ing voltage or sacrificing manufacturability.

Availability

BSS64 is available at Aetrix Electronics and suitable for industrial power supply biasing, telecom line interface, and automotive sensor signal conditioning requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for BSS64 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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The BSS64 belongs to NXP's legacy discrete bipolar transistor portfolio, designed specifically for high-voltage, medium-current switching in thick- and thin-film hybrid circuits where reliability and standardized SOT23 packaging are essential.

FAQ

Is the BSS64 RoHS compliant?

Yes, the BSS64 manufactured after 2006 conforms to RoHS Directive 2011/65/EU. Lead-free SOT23 assembly uses matte tin plating on gull-wing leads, and halogen-free molding compound meets IEC 61249-2-21 standards. Date codes post-2006 indicate full compliance; earlier lots may contain leaded solder finish.

What is the maximum safe operating frequency for switching use?

The BSS64 achieves usable switching performance up to 10 MHz with proper base drive and load conditions. Its f_T of 60–100 MHz indicates theoretical gain-bandwidth limit, but practical turn-on/turn-off times (t_on ≈ 25 ns, t_off ≈ 120 ns per typical curves) constrain reliable operation to <10 MHz in hard-switched applications.

Can the BSS64 replace the BSS63 in a circuit?

No - the BSS64 is NPN while the BSS63 is its PNP complement. Swapping them would reverse polarity and cause immediate circuit failure. They are intended for complementary use in push-pull or level-shifting pairs, not interchange. Pinout alignment (1=base, 2=emitter, 3=collector) is identical, but current flow direction is inverted.

Does the BSS64 require a heatsink in 250 mW operation?

No external heatsink is required at 250 mW if ambient temperature stays ≤25 °C and the device is mounted on standard FR4 with recommended pad layout (≥10 mm² copper pour). At 25 °C ambient, junction temperature reaches ~150 °C (250 mW × 500 K/W), which is its absolute max - derating is mandatory above 25 °C; at 50 °C ambient, max safe power drops to ~125 mW.

BSS64,215 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Last Time Buy

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 100 mA

Voltage - Collector Emitter Breakdown (Max):: 80 V

Vce Saturation (Max) @ Ib, Ic:: 200mV @ 15mA, 50mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 20 @ 10mA, 1V

Power - Max:: 250 mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BSS64,215 FAQ

1.How can I place an order for BSS64,215 through Aetrix?

Please submit a Request for Quotation (RFQ) for BSS64,215 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 BSS64,215 reliable?

The price and inventory of BSS64,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSS64,215 is usually 5 days.

3.What payment methods are accepted for BSS64,215?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSS64,215 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BSS64,215?

BSS64,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BSS64,215 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 BSS64,215?

For technical support, including BSS64,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSS64,215 requirements.

6.How does Aetrix verify that BSS64,215 is sourced from the original manufacturer or authorized distributors?

All BSS64,215 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 BSS64,215 meets industry standards.

7.What is the process for return or replacement of BSS64,215?

All BSS64,215 units undergo pre-shipment inspection (PSI). If there is an issue with BSS64,215, 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 BSS64,215 part is unused and in its original packaging.

Return procedure for BSS64,215:

1.Submit a request within 90 days.

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

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