ZTX853STZ Equivalent & Substitute Parts

Part Overview

The ZTX853STZ is an NPN bipolar junction transistor manufactured by Diodes Incorporated, designed for general-purpose switching and amplification applications. This device features a maximum collector current of 4 A, collector-emitter breakdown voltage of 100 V, and a transition frequency of 130 MHz. The ZTX853STZ is supplied in Cut Tape packaging with Through Hole E-Line (TO-92 compatible) mounting. The product maintains Active status and is RoHS3 compliant. Identifying equivalent and substitute parts is necessary when Cut Tape packaging is unavailable or when alternative packaging formats are required for procurement or assembly operations.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) (Max)	4	A
Voltage - Collector Emitter Breakdown (Max)	100	V
Vce Saturation (Max) @ Ib, Ic	200mV @ 400mA, 4A	—
Current - Collector Cutoff (Max)	50	nA
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 2A, 2V	—
Power - Max	1.2	W
Frequency - Transition	130	MHz
Operating Temperature	-55 to 200	°C
Mounting Type	Through Hole	—
Package / Case	E-Line-3	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the ZTX853STZ is determined by electrical and mechanical parameter equivalence. The critical parameters that define substitutability are:

Transistor Type: NPN configuration
Maximum Collector Current: 4 A
Collector-Emitter Breakdown Voltage: 100 V
Vce Saturation characteristics: 200mV @ 400mA, 4A
DC Current Gain (hFE): 100 @ 2A, 2V minimum
Maximum Power Dissipation: 1.2 W
Transition Frequency: 130 MHz
Operating Temperature Range: -55°C to 200°C
Mounting Type: Through Hole E-Line (TO-92 compatible)
Package / Case: E-Line-3

The ZTX853 in Bulk packaging is electrically and mechanically identical to the ZTX853STZ. The only difference is the packaging format: ZTX853STZ is supplied in Cut Tape, while ZTX853 is supplied in Bulk. Both parts share the same base product number, electrical specifications, and compliance certifications.

Parameter Comparison

Parameter	ZTX853STZ (Cut Tape)	ZTX853 (Bulk)	Match
Manufacturer	Diodes Incorporated	Diodes Incorporated	Yes
Transistor Type	NPN	NPN	Yes
Current - Collector (Ic) (Max)	4 A	4 A	Yes
Voltage - Collector Emitter Breakdown (Max)	100 V	100 V	Yes
Vce Saturation (Max) @ Ib, Ic	200mV @ 400mA, 4A	200mV @ 400mA, 4A	Yes
Current - Collector Cutoff (Max)	50nA	50nA	Yes
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 2A, 2V	100 @ 2A, 2V	Yes
Power - Max	1.2 W	1.2 W	Yes
Frequency - Transition	130MHz	130MHz	Yes
Operating Temperature	-55°C ~ 200°C	-55°C ~ 200°C	Yes
Mounting Type	Through Hole	Through Hole	Yes
Package / Case	E-Line-3	E-Line-3	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Yes
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Yes
Product Status	Active	Active	Yes
Packaging Format	Cut Tape (CT)	Bulk	Different

Engineering Selection Recommendations

The ZTX853 in Bulk packaging is a direct electrical and mechanical equivalent to the ZTX853STZ. Both parts are manufactured by Diodes Incorporated, maintain Active product status, and carry identical electrical specifications across all rated parameters. Both parts are RoHS3 compliant and REACH unaffected, meeting the same regulatory requirements.

Selection between ZTX853STZ and ZTX853 is determined solely by packaging requirements. The ZTX853STZ is appropriate for applications requiring Cut Tape format, typically used in automated pick-and-place assembly operations. The ZTX853 in Bulk packaging is suitable for manual assembly, reel-based automated systems, or applications where packaging format flexibility is required.

Both parts are suitable for direct substitution in circuit designs without modification to electrical performance or thermal characteristics.

Frequently Asked Questions (FAQ)

Q: Can ZTX853 (Bulk) be used as a direct replacement for ZTX853STZ (Cut Tape)?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format. ZTX853STZ is supplied in Cut Tape; ZTX853 is supplied in Bulk. Circuit performance and electrical characteristics are identical.

Q: Are there any electrical performance differences between the two packaging formats?

A: No. The transistor die, electrical specifications, and performance characteristics are identical. Packaging format does not affect electrical performance, maximum ratings, or operating characteristics.

Q: What is the difference between Cut Tape and Bulk packaging?

A: Cut Tape packaging supplies individual components on tape segments, typically used for automated assembly systems. Bulk packaging supplies loose components in quantities, typically used for manual assembly or alternative handling methods. Both formats contain the same component.

Q: Are both parts RoHS3 compliant?

A: Yes. Both ZTX853STZ and ZTX853 are RoHS3 compliant and REACH unaffected.

Q: Can these parts be used interchangeably in production?

A: Yes, provided the assembly process can accommodate the packaging format. If the production line requires Cut Tape format, use ZTX853STZ. If Bulk format is acceptable, ZTX853 is suitable. Electrical performance is identical.

Q: What is the operating temperature range for both parts?

A: Both parts operate from -55°C to 200°C junction temperature (TJ).

Q: Are there any moisture sensitivity concerns?

A: Both parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control measures.

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